Pigeon pea | |
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Botanical illustration of the morphological details of a C. cajan specimen. | |
Botanical image depicting the foliage characteristics and differing pod and flower phenotypes. | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Fabales |
Family: | Fabaceae |
Subfamily: | Faboideae |
Genus: | Cajanus |
Species: | C. cajan |
Binomial name | |
Cajanus cajan (L.) Huth | |
The pigeon pea [1] (Cajanus cajan) or toor dal is a perennial legume from the family Fabaceae native to the Eastern Hemisphere. [2] The pigeon pea is widely cultivated in tropical and semitropical regions around the world, being commonly consumed in South Asia, Southeast Asia, Africa, Latin America and the Caribbean. [3] : 5941
The scientific name for the genus Cajanus and the species cajan derive from the Malay word katjang (modern spelling: kacang) meaning legume in reference to the bean of the plant. [5]
In English they are commonly referred to as pigeon pea which originates from the historical utilization of the pulse as pigeon fodder in Barbados. [6] [7] The term Congo pea and Angola pea developed due to the presence of its cultivation in Africa and the association of its utilization with those of African descent. [8] [9] The names no-eye pea and red gram both refer to the characteristics of the seed, with no-eye pea in reference to the lack of a hilum blotch on most varieties, unlike the black-eyed pea, and red gram in reference to the red color of most Indian varieties and gram simply referring to the plant being a legume. [10]
This section should specify the language of its non-English content, using {{ lang }}, {{ transliteration }} for transliterated languages, and {{ IPA }} for phonetic transcriptions, with an appropriate ISO 639 code. Wikipedia's multilingual support templates may also be used.(December 2022) |
In Benin the pigeon pea is locally known as klouékoun in Fon, otinin in Ede and eklui in Adja. [11] In Cape Verde they are called Fixon Kongu in Cape Verdean creole. [12] In Comoros and Mauritius they are known as embrevade or ambrebdade in Comorian [13] and Morisyen, respectively, in return originating from the Malagasy term for the plant amberivatry. [14] In Ghana they are known as aduwa or adowa in Dagbani. [15] [16] In Kenya and Tanzania they are known as mbaazi in Swahili. [17] In Malawi they are called nandolo in Chichewa. [18] In Nigeria pigeon peas are called fiofio or mgbụmgbụ in Igbo, [19] [20] waken-masar "Egyptian bean" [21] or waken-turawa "foreigner bean" [22] in Hausa, [23] and otinli in Yoruba. [24] In Sudan they are known as adaseya, adasy and adasia. [25] [26]
This sub-section needs additional citations for verification .(August 2024) |
In India the plant is known by various different names such as
In Persian,it is known as شاخول (shakhul) and is popular in dishes. In the Philippines they are known as Kadios in Filipino and Kadyos in Tagalog. [29] [30]
In Latin America, [31] they are known as guandul or gandul in Spanish, and feijão andu or gandu in Portuguese all of which derive from Kikongo wandu or from Kimbundu oanda; both names referring to the same plant. [32] [33] [34] [35]
In the Anglophone regions of the Caribbean, like Jamaica, [36] they are known as Gungo peas, coming from the more archaic English name for the plant congo pea, given to the plant because of its popularity and relation to Sub-Saharan Africa. [37] [38]
In Francophone regions of the Caribbean they are known as pois d' angole, [39] pwa di bwa in Antillean creole [40] and pwa kongo in Haitian creole. [41]
In Suriname they are known as wandoe [42] or gele pesi, [43] the former of which is derived from the same source as its Spanish and Portuguese counterparts, the latter of which literally translates to 'yellow pea' from Dutch and Sranan Tongo.
In Hawaii they are known as pi pokoliko 'Puerto Rican pea' or pi nunu 'pigeon pea' in the Hawaiian language. [44]
The closest relatives to the cultivated pigeon pea are Cajanus cajanifolia, Cajanus scarabaeoides and Cajanus kerstingii, native to India and the latter West Africa respectively. [45] [46] [47] Much debate exist over the geographical origin of the species, with some groups claiming origin from the Nile river and Western Africa, and the other Indian origin. [48] The two epicenters of genetic diversity exist in both Africa and India, but India is considered to be its primary center of origin with West Africa being considered a second major center of origin. [49]
By at least 2,800 BCE in peninsular India, [50] where its presumptive closest wild relatives Cajanus cajanifolia occurs in tropical deciduous woodlands, its cultivation has been documented. [51] Archaeological finds of pigeon pea cultivation dating to about 14th century BC have also been found at the Neolithic site of Sanganakallu in Bellary and its border area Tuljapur (where the cultivation of African domesticated plants like pearl millet, finger millet, and Lablab have also been uncovered), [52] as well as in Gopalpur and other South Indian states. [53]
From India it may have made its way to North-East Africa via Trans-Oceanic Bronze Age trade that allowed cross-cultural exchange of resources and agricultural products. [54] The earliest evidence of pigeon peas in Africa was found in Ancient Egypt with the presence of seeds in Egyptian tombs dating back to around 2,200 BCE. [55] From eastern Africa, cultivation spread further west and south through the continent, where by means of the Trans-Atlantic slave trade, it reached the Americas around the 17th century. [38]
Pigeon peas were introduced to Hawaii in 1824 by James Macrae with a few specimens becoming naturalized on the islands, but they wouldn't gain much popularity until later. [56] By the early 20th century Filipinos and Puerto Ricans began to emigrate from the American Philippines and Puerto Rico to Hawaii to work in sugarcane plantations in 1906 and 1901, respectively. [57] [58] [59] Pigeon peas are said to have been popularized on the island by the Puerto Rican community where by the First World War their cultivation began, to expand on the island where they are still cultivated and consumed by locals. [60]
Nutritional value per 100 g (3.5 oz) | |||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Energy | 569 kJ (136 kcal) | ||||||||||||||||||||||||||||||||||||||||||||||||
23.88 g | |||||||||||||||||||||||||||||||||||||||||||||||||
Sugars | 3 g | ||||||||||||||||||||||||||||||||||||||||||||||||
Dietary fiber | 5.1 g | ||||||||||||||||||||||||||||||||||||||||||||||||
1.64 g | |||||||||||||||||||||||||||||||||||||||||||||||||
7.2 g | |||||||||||||||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||||||||||||||
Link to USDA Database entry Values for Choline, Vit. E/K available | |||||||||||||||||||||||||||||||||||||||||||||||||
†Percentages estimated using US recommendations for adults, [61] except for potassium, which is estimated based on expert recommendation from the National Academies. [62] |
Nutritional value per 100 g (3.5 oz) | |||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Energy | 1,435 kJ (343 kcal) | ||||||||||||||||||||||||||||||||||||||||
62.78 g | |||||||||||||||||||||||||||||||||||||||||
Sugars | n/a | ||||||||||||||||||||||||||||||||||||||||
Dietary fiber | 15 g | ||||||||||||||||||||||||||||||||||||||||
1.49 g | |||||||||||||||||||||||||||||||||||||||||
21.7 g | |||||||||||||||||||||||||||||||||||||||||
Tryptophan | 212 mg | ||||||||||||||||||||||||||||||||||||||||
Threonine | 767 mg | ||||||||||||||||||||||||||||||||||||||||
Isoleucine | 785 mg | ||||||||||||||||||||||||||||||||||||||||
Leucine | 1549 mg | ||||||||||||||||||||||||||||||||||||||||
Lysine | 1521 mg | ||||||||||||||||||||||||||||||||||||||||
Methionine | 243 mg | ||||||||||||||||||||||||||||||||||||||||
Cystine | 250 mg | ||||||||||||||||||||||||||||||||||||||||
Phenylalanine | 1858 mg | ||||||||||||||||||||||||||||||||||||||||
Tyrosine | 538 mg | ||||||||||||||||||||||||||||||||||||||||
Valine | 937 mg | ||||||||||||||||||||||||||||||||||||||||
Arginine | 1299 mg | ||||||||||||||||||||||||||||||||||||||||
Histidine | 774 mg | ||||||||||||||||||||||||||||||||||||||||
Alanine | 972 mg | ||||||||||||||||||||||||||||||||||||||||
Aspartic acid | 2146 mg | ||||||||||||||||||||||||||||||||||||||||
Glutamic acid | 5031 mg | ||||||||||||||||||||||||||||||||||||||||
Glycine | 802 mg | ||||||||||||||||||||||||||||||||||||||||
Proline | 955 mg | ||||||||||||||||||||||||||||||||||||||||
Serine | 1028 mg | ||||||||||||||||||||||||||||||||||||||||
Hydroxyproline | 0 mg | ||||||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||||||
Link to USDA Database entry Values for Choline, Vit. E/K unavailable | |||||||||||||||||||||||||||||||||||||||||
†Percentages estimated using US recommendations for adults, [61] except for potassium, which is estimated based on expert recommendation from the National Academies. [62] |
Pigeon peas contain high levels of protein and the important amino acids methionine, lysine, and tryptophan. [63]
The following table indicates completeness of nutritional profile of various amino acids within mature seeds of pigeon pea.
Essential Amino Acid | Available mg/g of Protein | Min. Required mg/g of Protein |
---|---|---|
Tryptophan | 9.76 | 7 |
Threonine | 32.34 | 27 |
Isoleucine | 36.17 | 25 |
Leucine | 71.3 | 55 |
Lysine | 70.09 | 51 |
Methionine+Cystine | 22.7 | 25 |
Phenylalanine+Tyrosine | 110.4 | 47 |
Valine | 43.1 | 32 |
Histidine | 35.66 | 18 |
Methionine + Cystine combination is the only limiting amino acid combination in pigeon pea. In contrast to the mature seeds, the immature seeds are generally lower in all nutritional values, however they contain a significant amount of vitamin C (39 mg per 100 g serving) and have a slightly higher fat content. Research has shown that the protein content of the immature seeds is of a higher quality. [64]
Protein | Fiber | Vitamins | Minerals | |||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Q | A | B1 | B2 | B3 | B5 | B6 | B9 | B12 | Ch. | C | D | E | K | Ca | Fe | Mg | P | K | Na | Zn | Cu | Mn | Se | |||
cooking Reduction % | 10 | 30 | 20 | 25 | 25 | 35 | 0 | 0 | 30 | 10 | 15 | 20 | 10 | 20 | 5 | 10 | 25 | |||||||||
Corn | 20 | 55 | 6 | 1 | 13 | 4 | 16 | 4 | 19 | 19 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 11 | 31 | 34 | 15 | 1 | 20 | 10 | 42 | 0 |
Rice | 14 | 71 | 1.3 | 0 | 12 | 3 | 11 | 20 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 9 | 6 | 7 | 2 | 0 | 8 | 9 | 49 | 22 |
Wheat | 27 | 51 | 40 | 0 | 28 | 7 | 34 | 19 | 21 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 20 | 36 | 51 | 12 | 0 | 28 | 28 | 151 | 128 |
Soybean(dry) | 73 | 132 | 31 | 0 | 58 | 51 | 8 | 8 | 19 | 94 | 0 | 24 | 10 | 0 | 4 | 59 | 28 | 87 | 70 | 70 | 51 | 0 | 33 | 83 | 126 | 25 |
Pigeon pea(dry) | 42 | 91 | 50 | 1 | 43 | 11 | 15 | 13 | 13 | 114 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 29 | 46 | 37 | 40 | 1 | 18 | 53 | 90 | 12 |
Potato | 4 | 112 | 7.3 | 0 | 5 | 2 | 5 | 3 | 15 | 4 | 0 | 0 | 33 | 0 | 0 | 2 | 1 | 4 | 6 | 6 | 12 | 0 | 2 | 5 | 8 | 0 |
Sweet potato | 3 | 82 | 10 | 284 | 5 | 4 | 3 | 8 | 10 | 3 | 0 | 0 | 4 | 0 | 1 | 2 | 3 | 3 | 6 | 5 | 10 | 2 | 2 | 8 | 13 | 1 |
Spinach | 6 | 119 | 7.3 | 188 | 5 | 11 | 4 | 1 | 10 | 49 | 0 | 4.5 | 47 | 0 | 10 | 604 | 10 | 15 | 20 | 5 | 16 | 3 | 4 | 6 | 45 | 1 |
Dill | 7 | 32 | 7 | 154 | 4 | 17 | 8 | 4 | 9 | 38 | 0 | 0 | 142 | 0 | 0 | 0 | 21 | 37 | 14 | 7 | 21 | 3 | 6 | 7 | 63 | 0 |
Carrots | 2 | 9.3 | 334 | 4 | 3 | 5 | 3 | 7 | 5 | 0 | 0 | 10 | 0 | 3 | 16 | 3 | 2 | 3 | 4 | 9 | 3 | 2 | 2 | 7 | 0 | |
Guava | 5 | 24 | 18 | 12 | 4 | 2 | 5 | 5 | 6 | 12 | 0 | 0 | 381 | 0 | 4 | 3 | 2 | 1 | 5 | 4 | 12 | 0 | 2 | 11 | 8 | 1 |
Papaya | 1 | 7 | 5.6 | 22 | 2 | 2 | 2 | 2 | 1 | 10 | 0 | 0 | 103 | 0 | 4 | 3 | 2 | 1 | 2 | 1 | 7 | 0 | 0 | 1 | 1 | 1 |
Pumpkin | 2 | 56 | 1.6 | 184 | 3 | 6 | 3 | 3 | 3 | 4 | 0 | 0 | 15 | 0 | 5 | 1 | 2 | 4 | 3 | 4 | 10 | 0 | 2 | 6 | 6 | 0 |
Sunflower oil | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 205 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Egg | 25 | 136 | 0 | 10 | 5 | 28 | 0 | 14 | 7 | 12 | 22 | 45 | 0 | 9 | 5 | 0 | 5 | 10 | 3 | 19 | 4 | 6 | 7 | 5 | 2 | 45 |
Milk | 6 | 138 | 0 | 2 | 3 | 11 | 1 | 4 | 2 | 1 | 7 | 2.6 | 0 | 0 | 0 | 0 | 11 | 0 | 2 | 9 | 4 | 2 | 3 | 1 | 0 | 5 |
Chicken Liver | 34 | 149 | 0 | 222 | 20 | 105 | 49 | 62 | 43 | 147 | 276 | 30 | 0 | 4 | 0 | 1 | 50 | 5 | 30 | 7 | 3 | 18 | 25 | 13 | 78 | |
%DV = % daily value i.e. % of DRI (Dietary Reference Intake) Note: All nutrient values including protein and fiber are in %DV per 100 grams of the food item. Significant values are highlighted in light Gray color and bold letters. [65] [66] Cooking reduction = % Maximum typical reduction in nutrients due to boiling without draining for ovo-lacto-vegetables group [67] [68] Q = Quality of Protein in terms of completeness without adjusting for digestability. [68] |
Pigeon peas can be of a perennial variety, in which the crop can last three to five years (although the seed yield drops considerably after the first two years), or an annual variety more suitable for seed production. [69]
World production of pigeon peas is estimated at 4.49 million tons. [70] About 63% of this production comes from India.[ citation needed ] The total number of hectares grown to pigeon pea is estimated at 5.4 million. [70] India accounts for 72% of the area grown to pigeon pea or 3.9 million hectares. Africa is the secondary centre of diversity and at present it contributes about 21% of global production with 1.05 million tons. Malawi, Tanzania, Kenya, Mozambique and Uganda are the major producers in Africa. [71]
The pigeon pea is an important legume crop of rainfed agriculture in the semiarid tropics. The Indian subcontinent, Africa and Central America, in that order, are the world's three main pigeon pea-producing regions. Pigeon peas are cultivated in more than 25 tropical and subtropical countries, either as a sole crop or intermixed with cereals, such as sorghum ( Sorghum bicolor ), pearl millet (Pennisetum glaucum), or maize (Zea mays), or with other legumes, such as peanuts (Arachis hypogea). Being a legume capable of symbiosis with Rhizobia, the bacteria associated with the pigeon pea enrich soils through symbiotic nitrogen fixation. [72]
The crop is cultivated on marginal land by resource-poor farmers, who commonly grow traditional medium- and long-duration (5–11 months) landraces. Short-duration pigeon peas (3–4 months) suitable for multiple cropping have recently been developed. Traditionally, the use of such input as fertilizers, weeding, irrigation, and pesticides is minimal, so present yield levels are low (average = 700 kg/ha or 620 lb/acre). Greater attention is now being given to managing the crop because it is in high demand at remunerative prices.
Pigeon peas are very drought-resistant and can be grown in areas with less than 650 mm annual rainfall. With the maize crop failing three out of five years in drought-prone areas of Kenya, a consortium led by the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) aimed to promote the pigeon pea as a drought-resistant, nutritious alternative crop. [73]
Legumes, which provide highly nutritious products and contribute to soil fertility through biological nitrogen fixation, are one of the most important crops in mixed crop-livestock systems [74] . Cajanus cajan is an important legume crop with a high N-fixation ability (79 % N derived from the atmosphere) [70] . Plant-growth promoting rhizobacteria (PGPR), together with strains of Rhizobium, can enhance growth and nitrogen fixation in pigeon pea by colonizing thenselves in the plant nodules [75] . These bioinoculants can be added as a single species but also as combined communities. Using a single bioinoculant shows benefits, but mixed communitites of different bioinoculatns have a greater positive impact on nodulation, plant dry mass, as well as shoot and root length [70] [76] . These different community species have different functions for the pigeon pea:
Bioinoculant | Function |
---|---|
Azotobacter chroococcum | promotes plant growth as a biofertilizer [77] |
Bacillus megaterium | produces nematode-targeting antibiotics and potentially influencing cytokinin signaling and supports the nitrogen yield of the plant especially during flowering and maturity stages [77] [70] [76] |
Pseudomonas fluorescens | produces bioactive metabolites and siderophores that combat plant pathogens and supports the denitrification process [77] [70] |
Trichoderma harzianum | promotes soil health by production of enzymes and secondary metabolites that enhibit harmful soilborne pathogens and nutrient cycling by promoting root development [70] [76] |
Pigeon pea is affected by a variety of pests and insects that can significantly impact crop yield and quality. They can infest the plant from seedling stage till harvest, therefore pests and diseas are the primary cause for low yields. [78] The major pests are moths include the gram pod borer ( Helicoverpa armigera ), which causes defoliation and pod damage; the blue butterfly ( Lampides boeticus ), which infests buds, flowers, and young pods; and the spotted pod borer ( Maruca vitrata ), known for webbing together infested pods and flowers. [79] [80] [81] The tur pod bug ( Clavigralla gibbosa ) is another significant pest of pigeon pea, causing substantial damage to pods and seeds. [82] Current resistance efforts focus on breeding pigeon pea varieties with enhanced resistance to these pests. However, the presence of multiple pest species and the variability in pest pressure across regions pose challenges to achieving consistent resistance. [83] Effective management techniques include integrated pest management (IPM) strategies such as crop rotation, intercropping with non-host plants, timely sowing, and the use of biological control agents like parasitoids and predators. [84] Chemical control measures, including the application of insecticides like neem-based products and synthetic pyrethroids, are also employed when necessary. [83]
Common Diseases of Pigeon Pea: [83]
Pigeonpea is unique among legumes in that its flowers support both cross-pollination and self-pollination. The bright, nectar-rich flowers attract pollinating insects, allowing natural outcrossing, which averages about 20% but varies with location due to pollinator populations. This level of outcrossing can lead to genetic contamination of parental lines and complicate the selection of lines by reducing the homozygosity of progeny. To mitigate these effects, breeders use techniques such as enclosing flowers in muslin bags or nets to prevent insect pollination. However, natural outcrossing also results in genetically diverse landraces and requires two to three generations of selfing before parental lines can be used in hybridisation programmes. [89]
Over 50 years of pigeonpea breeding has resulted in genetic improvements, disease-resistant varieties, a reduction in crop maturity from 300 to less than 90 days, and the introduction of the first legume hybrid technology, which has increased yields by 30-50%. Despite these advances, yield per unit area has remained stable, with improved stability and diversification for farmers. [90]
John Spence, a botanist and politician from Trinidad and Tobago, developed several varieties of dwarf pigeon peas which can be harvested by machine, instead of by hand. [91]
The pigeon pea is the first seed legume plant to have its complete genome sequenced. The sequencing was first accomplished by a group of 31 Indian scientists from the Indian Council of Agricultural Research. It was then followed by a global research partnership, the International Initiative for Pigeon pea Genomics (IIPG), led by ICRISAT with partners such as BGI–Shenzhen (China), US research laboratories like University of Georgia, University of California-Davis, Cold Spring Harbor Laboratory, and National Centre for Genome Resources, European research institutes like the National University of Ireland Galway. It also received support from the CGIAR Generation Challenge Program, US National Science Foundation and in-kind contribution from the collaborating research institutes. [92] [93] It is the first time that a CGIAR-supported research center such as ICRISAT led the genome sequencing of a food crop. There was a controversy over this as CGIAR did not partner with a national team of scientists and broke away from the Indo American Knowledge Initiative to start their own sequencing in parallel. [94]
The 616 mature microRNAs and 3919 long non-codingRNAs sequences were identified in the genome of pigeon pea. [95]
Various methodologies exist in order to remove the pulse from its shell. In earlier days hand pounding was common. Several traditional methods are used that can be broadly classified under two categories: the wet method and the dry method. The Wet method Involves water soaking, sun drying and dehulling. The Dry method Involves oil/water application, drying in the sun, and dehulling. Depending on the magnitude of operation, large-scale commercial dehulling of large quantities of pigeon pea into its deskinned, split version, known as toor dal in Hindi, is done in mechanically operated mills. [96] [97]
Pigeon peas are both a food crop (dried peas, flour, or green vegetable peas) and a forage/cover crop. In combination with cereals, pigeon peas make a well-balanced meal and hence are favored by nutritionists as an essential ingredient for balanced diets. The dried peas may be sprouted briefly, then cooked, for a flavor different from the green or dried peas. Sprouting also enhances the digestibility of dried pigeon peas via the reduction of indigestible sugars that would otherwise remain in the cooked dried peas. [98]
In Cape Verde they make a soup with the dried pigeon peas called feijão Congo, after its own name, made with dried pigeon peas in a similar manner to Brazilian feijoada. [99]
In Kenya and throughout the Swahili-speaking region of East Africa, pigeon peas are utilized in dishes such as mbaazi na mahamri , that is usually served for breakfast. [100] [101]
In the Enugu state of Nigeria, and igbo dish called Ẹchịcha or Achịcha is made with palm oil, cocoyam, and seasoning. [102] It is also similar to other dishes from the state such as ayarya ji and fio-fio. [103] [104] [105]
In Ethiopia, the pods, the young shoots and leaves, are cooked and eaten. [106]
In India, it is one of the most popular pulses, being an important source of protein in a mostly vegetarian diet. It is the primary accompaniment to rice or roti and has the status of staple food throughout the length and breadth of India. In regions where it grows, fresh young pods are eaten as a vegetable in dishes such as sambar.
In the Western Visayas region of the Philippines, pigeon peas are the main ingredient of a very popular dish called "KBL" - an acronym for "Kadyos" (pigeon pea), "Baboy" (pork), and "Langka" (jackfruit). It is a savory soup with rich flavors coming from the pigeon peas, smoked pork preferably the legs or tail, and souring agent called batuan. Raw jackfruit meat is chopped and boiled to soft consistency, and serves as an extender. The violet color of the soup comes from the pigment of the variety commonly grown in the region. [107]
In the Caribbean coast of Colombia, such as the Atlántico department of Colombia, the sopa de guandú con carne salada (or simply "gandules") is made with pigeon peas, yam, plantain, yuca, and spices. [108] During the week of Semana santa a sweet is made out of pigeon peas called dulce de guandules which is made by mashed and sweetened pigeon peas with origins in the maroon community of San Basilio de Palenque. [109] [110] [111]
In the Dominican Republic, a dish made of rice and green pigeon peas called moro de guandules is a traditional holiday food. It is also consumed as guandules guisados, which is a savoury stew with coconut and squash served with white rice. A variety of sancocho is also made based on green pigeon peas that includes poultry, pork, beef, yams, yucca, squash, plantain and others. Dominicans have a high regard for this legume and it is consumed widely. [112]
In Panama, pigeon peas are used in a dish called Arroz con guandú y coco or "rice with pigeon peas and coconut" traditionally prepared and consumed during the end of year holidays. [113]
In Puerto Rico, arroz con gandules is made with rice and pigeon peas and sofrito which is a traditional dish, especially during Christmas season. [114] Pigeon peas can also be made in to a stew called asopao de gandules, with plantain balls. [115]
Jamaica also uses pigeon peas instead of kidney beans in their rice and peas dish, especially during the Christmas season. [116]
Trinidad and Tobago and Grenada have their own variant, called pelau , which includes either beef or chicken, and occasionally pumpkin and pieces of cured pig tail. [117]
Unlike in some other parts of the Greater Caribbean, in The Bahamas pigeon peas are used in dried form, light brown in color to make the heartier, heavier, signature Bahamian staple dish "Peas 'n Rice." [118]
In Hawaii they are used to make a dish called gandule rice, [119] also called godule rice, [120] gundule rice, [121] and ganduddy rice [122] originates on the island from the Puerto Rican community with historic ties to the island and is prepared in a similar manner to that of traditional Puerto Rican arroz con gandules. [123]
It is an important ingredient of animal feed used in West Africa, especially in Nigeria, where it is also grown. Leaves, pods, seeds and the residues of seed processing are used to feed all kinds of livestock. [124]
In the Congo pigeon peas are utilized as one of the main food forest and soil improvement crops after using a slash-and-burn fire technique called maala. [125]
Pigeon peas are in some areas an important crop for green manure, providing up to 90 kg nitrogen per hectare. [126] The woody stems of pigeon peas can also be used as firewood, fencing, thatch and as a source for rope fiber. [127]
Pigeon pea has been valued for its medicinal properties since prehistoric times in various regions, including Africa, Egypt and Asia. Today, different countries use different parts of the plant to treat a range of diseases as an alternative medicine. In the Republic of Congo the Kongo, Lari, and Dondo people use the sap of the leaves as an eyedrop for epilepsy. [128] In Nigeria the leaves are used to treat malaria, while in India they are used to treat diabetes, stomach tumours and wounds. In Oman, pigeon pea is used to treat chronic diseases, and in traditional Chinese medicine it is used to relieve pain and control intestinal worms. In Africa, the seeds are used to treat hepatitis and measles. The widespread traditional medicinal use of the plant is attributed to its rich content of phenolic compounds, which have antiviral, anti-inflammatory, antioxidant, hypocholesterolemic and hypoglycaemic effects. The leaves also contain flavonoids, terpenoids, essential oils and coumarin, which further enhance its therapeutic potential in the fight against disease. [129] There are different studies looking at how the medicinal compounds of pigeon pea could be used in future. One study, using rats, found that a pigeonpea beverage could be used as an anti-diabetic functional drink. This drink would help to reduce plasma glucose and total cholesterol levels and increase plasma antioxidant status. Therefore, it could be used in future as an alternative strategy to maintain plasma glucose and cholesterol at normal levels and help prevent diabetes complications. [130] Furthermore, pigeon pea could be used as a fermented food as this would increase its antioxidant levels and therefore, have an antiatherosclerotic effect. This would help to improve systolic blood pressure as well as diastolic blood pressure. This benefits cardiovascular health and could be developed as a new dietary supplement or functional food that prevents hypertension. [131]
In Madagascar the branches have been used as a teeth cleaning twig. [132] [133]
A bean is the seed of any plant in the legume family (Fabaceae) used as a vegetable for human consumption or animal feed. The seeds are often preserved through drying, but fresh beans are also sold. Most beans are traditionally soaked and boiled, but they can be cooked in many different ways, including frying and baking, and are used in many traditional dishes throughout the world. The unripe seedpods of some varieties are also eaten whole as green beans or edamame, but fully ripened beans contain toxins like phytohemagglutinin and require cooking.
Finger millet is an annual herbaceous plant widely grown as a cereal crop in the arid and semiarid areas in Africa and Asia. It is a tetraploid and self-pollinating species probably evolved from its wild relative Eleusine africana.
The peanut, also known as the groundnut, goober (US), goober pea, pindar (US) or monkey nut (UK), is a legume crop grown mainly for its edible seeds. It is widely grown in the tropics and subtropics by small and large commercial producers, both as grain legume and as an oil crop. Atypically among legumes, peanut pods develop underground leading botanist Carl Linnaeus to name peanuts hypogaea, which means "under the earth".
The chickpea or chick pea is an annual legume of the family Fabaceae, subfamily Faboideae, cultivated for its edible seeds. Its different types are variously known as gram or Bengal gram; chhola, chhana, chana, or channa; garbanzo or garbanzo bean; or Egyptian pea. It is one of the earliest cultivated legumes, the oldest archaeological evidence of which was found in Syria.
Pea is a pulse, vegetable or fodder crop, but the word often refers to the seed or sometimes the pod of this flowering plant species. Carl Linnaeus gave the species the scientific name Pisum sativum in 1753. Some sources now treat it as Lathyrus oleraceus; however the need and justification for the change is disputed. Each pod contains several seeds (peas), which can have green or yellow cotyledons when mature. Botanically, pea pods are fruit, since they contain seeds and develop from the ovary of a (pea) flower. The name is also used to describe other edible seeds from the Fabaceae such as the pigeon pea, the cowpea, the seeds from several species of Lathyrus and is used as a compound form for example Sturt's desert pea.
The genus Cajanus is a member of the plant family Fabaceae. There are 37 species, mainly distributed across Africa, Asia and Australasia.
Vicia faba, commonly known as the broad bean, fava bean, or faba bean, is a species of vetch, a flowering plant in the pea and bean family Fabaceae. It is widely cultivated as a crop for human consumption, and also as a cover crop. Varieties with smaller, harder seeds that are fed to horses or other animals are called field bean, tic bean or tick bean. Horse bean, Vicia faba var. equinaPers., is a variety recognized as an accepted name. This legume is very common in Southern European, Northern European, East Asian, Latin American and North African cuisines.
Legumes are plants in the family Fabaceae, or the fruit or seeds of such plants. When used as a dry grain for human consumption, the seeds are also called pulses. Legumes are grown agriculturally, primarily for human consumption, but also as livestock forage and silage, and as soil-enhancing green manure. Well-known legumes include beans, chickpeas, peanuts, lentils, lupins, mesquite, carob, tamarind, alfalfa, and clover. Legumes produce a botanically unique type of fruit – a simple dry fruit that develops from a simple carpel and usually dehisces on two sides.
The mung bean or green gram is a plant species in the legume family. The mung bean is mainly cultivated in East, Southeast and South Asia. It is used as an ingredient in both savoury and sweet dishes.
The cowpea is an annual herbaceous legume from the genus Vigna. Its tolerance for sandy soil and low rainfall have made it an important crop in the semiarid regions across Africa and Asia. It requires very few inputs, as the plant's root nodules are able to fix atmospheric nitrogen, making it a valuable crop for resource-poor farmers and well-suited to intercropping with other crops. The whole plant is used as forage for animals, with its use as cattle feed likely responsible for its name.
Vigna subterranea is a member of the family Fabaceae. Its name is derived from the Bambara ethnic group. The plant originated in West Africa. As a food and source of income, the Bambara groundnut is considered to be the third most important leguminous crop in those African countries where it is grown, after peanut and cowpea. The crop is mainly cultivated, sold and processed by women, and is, thus, particularly valuable for female subsistence farmers.
The International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) is an international organisation which conducts agricultural research for rural development, headquartered in Patancheru, Hyderabad, Telangana, India, with several regional centres and research stations . It was founded in 1972 by a consortium of organisations convened by the Ford- and the Rockefeller- foundations. Its charter was signed by the FAO and the UNDP.
The winged bean, also known as cigarillas, goa bean, four-angled bean, four-cornered bean, manila bean, princess bean, star bean, kamrangi bean, pea, dragon bean, is a tropical herbaceous legume plant.
Nagendra Kumar Singh is an Indian agricultural scientist. He is presently a National Professor Dr. B.P. Pal Chair and JC Bose National Fellow at ICAR-National Institute for Plant Biotechnology, Indian Agricultural Research Institute, New Delhi. He was born in a small village Rajapur in the Mau District of Uttar Pradesh, India. He is known for his research in the area of plant genomics, genetics, molecular breeding and biotechnology, particularly for his contribution in the decoding of rice, tomato, wheat, pigeon pea, jute and mango genomes and understanding of wheat seed storage proteins and their effect on wheat quality. He has made significant advances in comparative analysis of rice and wheat genomes and mapping of genes for yield, salt tolerance and basmati quality traits in rice. He is one of the highest cited agricultural scientists from India for the last five years.
The Legume Information System (LIS) is legume sciences portal specifically for legume breeders and researchers, established and supported by the Agricultural Research Service of the United States Department of Agriculture. The mission of the Legume Information System is "to facilitate discoveries and crop improvement in the legumes," in particular to improve crop yields, their nutritional value, and our understanding of basic legume science.
Rajeev Kumar Varshney is an Indian agricultural scientist, specializing in genomics, genetics, molecular breeding and capacity building in developing countries. Varshney is currently serving as Director, Western Australian State Agricultural Biotechnology Center; Director, Centre for Crop & Food Innovation; and International Chair in Agriculture & Food Security with the Food Futures Institute at Murdoch University, Australia since Feb 2022. Before joining Murdoch University, Australia he served International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), a global agriculture R&D institute, for more than 16 years in different scientific and research leadership roles including Research Program Director for three global research programs– Grain Legumes, Genetic Gains and Accelerated Crop Improvement Program. He has the onus of establishing and nurturing the Center of Excellence in Genomics & Systems Biology (CEGSB), a globally recognized center for genomics research at ICRISAT that made impacts on improving agriculture and development of human resources in several countries including India, China, Kenya, Ethiopia, Tanzania, Nigeria, Ghana, Mali, Senegal, Burkina Faso, etc. Varshney holds Adjunct/Honorary/Visiting Professor positions at 10 academic institutions in Australia, China, Ghana, Hong Kong and India, including The University of Western Australia, University of Queensland, West Africa Centre for Crop Improvement, University of Hyderabad, Chaudhary Charan Singh University and Professor Jayashankar Telangana State Agricultural University.
Cajanus scarabaeoides is a flowering plant in the genus Cajanus. Of the 32 different species within the genus Cajanus, only one, C. cajan (pigeonpea), is cultivated. Cajanus scarabaeoides is the closest wild relative to C. cajan, and is one of the easiest wild species to cross with pigeonpea cultivars. C. scarabaeoides is found naturally in both temperate and tropical zones around the globe. This species has higher levels of drought tolerance, is found to have greater protein content, and has higher levels of resistance to insect pests compared to cultivated types. These genetic traits can be crossed with C. cajan to improve the crop's productivity. For subsistence farmers, this can reduce economic losses and drastically improve overall crop yield.
Cajanus kerstingii is a widely ignored shrub found mostly in open savannah conditions across western Africa. It is closely related to the widely utilised Cajanus cajan, otherwise known as pigeon pea. Cajanus kerstingii can be consumed by humans as a cereal, pulse, fibre or forage. Unfortunately, very little data exists for this plant, but "one may reasonably expect it to be of value".
Callosobruchus is a genus of beetles in the family Chrysomelidae, the leaf beetles. It is in the subfamily Bruchinae, the bean weevils. Many beetles in the genus are well known as economically important pests that infest stored foodstuffs.
Clavigralla gibbosa, the tur pod bug, is a species of leaf-footed bug in the family Coreidae. It is found in India, Sri Lanka and Myanmar, where it is a pest of pigeon pea.