BBCH-scale (hop)

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In biology, the BBCH-scale for hops describes the phenological development of Humulus lupulus (hops) using the BBCH-scale.

The phenological growth stages and BBCH-identification keys of hops are:

Growth stageCodeDescription
0: Sprouting00Dormancy: rootstock without shoots (uncut)
01Dormancy: rootstock without shoots (cut)
07Rootstock with shoots (uncut)
08Beginning of shoot-growth (rootstock cut)
09Emergence: first shoots emerge at the soil surface
1: Leaf development11First pair of leaves unfolded
122nd pair of leaves unfolded (beginning of twining)
133rd pair of leaves unfolded
1 .Stages continuous till ...
199 and more pairs of leaves unfolded
2: Formation of side shoots21First pair of side shoots visible
222nd pair of side shoots visible
233rd pair of side shoots visible
2 .Stages continuous till ...
29Nine and more pairs of side shoots visible (secondary side shoots occur)
3: Elongation of bines31Bines have reached 10% of top wire height
32Bines have reached 20% of top wire height
33Bines have reached 30% of top wire height
3 .Stages continuous till ...
38Plants have reached the top wire
39End of bine growth
5: Inflorescence emergence51Inflorescence buds visible
55Inflorescence buds enlarged
6: Flowering61Beginning of flowering: about 10% of flowers open
62About 20% of flowers open
63About 30% of flowers open
64About 40% of flowers open
65Full flowering: about 50% of flowers open
66About 60% of flowers open
67About 70% of flowers open
68About 80% of flowers open
69End of flowering
7: Development of cones71Beginning of cone development: 10% of inflorescences are cones
75Cone development half way: all cones visible, cones soft, stigmas still present
79Cone development complete: nearly all cones have reached full size
8: Maturity of cones81Beginning of maturity: 10% of cones are compact
8220% of cones are compact
8330% of cones are compact
8440% of cones are compact
85Advanced maturity: 50% of cones are compact
8660% of cones are compact
8770% of cones are compact
8880% of cones are compact
89Cones ripe for picking: cones closed; lupulin golden; aroma potential fully developed
9: Senescence, entry into dormancy92Overripeness: cones yellow-brown discoloured, aroma deterioration
97Dormancy: leaves and stems dead

Related Research Articles

<i>Humulus</i> Genus of flowering plants belonging to the hemp and hackberry family

Humulus, hop, is a small genus of flowering plants in the family Cannabaceae. The hop is native to temperate regions of the Northern Hemisphere. Hops are the female flowers of the hop species H. lupulus; as a main flavor and aroma ingredient in many beer styles, H. lupulus is widely cultivated for use by the brewing industry.

<i>Humulus lupulus</i> Species of flowering plant

Humulus lupulus, the common hop or hops, is a species of flowering plant in the hemp family Cannabaceae, native to Europe, western Asia and North America. It is a perennial, herbaceous climbing plant which sends up new shoots in early spring and dies back to a cold-hardy rhizome in autumn. It is dioecious.

The BBCH-scale is used to identify the phenological development stages of plants. BBCH-scales have been developed for a range of crop species where similar growth stages of each plant are given the same code.

In biology, the BBCH-scale for beans describes the phenological development of bean plants using the BBCH-scale.

In biology, the BBCH-scale for beet describes the phenological development of beet plants using the BBCH-scale.

In biology, the BBCH-scale for bulb vegetables describes the phenological development of bulb vegetable plants, such as onion, leek, garlic and shallot, using the BBCH-scale.

The BBCH-scale for citrus is a classification system used in biology to describe the phenological development of citrus plants using the BBCH-scale.

In biology, the BBCH-scale for cotton describes the phenological development of cotton plants Gossypium hirsutum using the BBCH-scale.

In biology, the BBCH-scale for cucurbits describes the phenological development of cucurbits, such as cucumber, melon, pumpkin, marrow, squash, calabash and watermelon, using the BBCH-scale.

In biology, the BBCH-scale for currants describes the phenological development of currants, such as blackcurrants and redcurrants, using the BBCH-scale.

In biology, the BBCH-scale for grapes describes the phenological development of grapes using the BBCH-scale.

In biology, the BBCH-scale for musaceae describes the phenological development of musaceae using the BBCH-scale.

In biology, the BBCH-scale for peas describes the phenological development of peas using the BBCH-scale.

In biology, the BBCH-scale for peanut describes the phenological development of peanuts using the BBCH-scale.

The BBCH-scale for root and stem vegetables identifies the phenological development stages of the root and stem vegetables such as carrot, celeriac, kohlrabi, chicory, radish and swede, using the BBCH-scale.

The BBCH-scale (strawberry) identifies the phenological development stages of strawberry. It is a plant species specific version of the BBCH-scale.

In biology, the BBCH-scale for leafy vegetables forming heads describes the phenological development of leafy vegetables forming heads, such as cabbage, chinese cabbage, lettuce and endive, using the BBCH-scale.

In biology, the BBCH-scale for leafy vegetables not forming heads describes the phenological development of leafy vegetables not forming heads, such as spinach, loosehead lettuce, and kale, using the BBCH-scale.

Humulone Chemical compound

Humulone, a vinylogous type of organic acid, is a bitter-tasting chemical compound found in the resin of mature hops. Humulone is a prevalent member of the class of compounds known as alpha acids, which collectively give hopped beer its characteristic bitter flavor.

8-Prenylnaringenin Chemical compound

8-Prenylnaringenin is a prenylflavonoid phytoestrogen. It is reported to be the most estrogenic phytoestrogen known. The compound is equipotent at the two forms of estrogen receptors, ERα and ERβ, and it acts as a full agonist of ERα. Its effects are similar to those of estradiol, but it is considerably less potent in comparison.

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