Cotton

• Also known as White gold.
• Tropical, short day and sun loving plant.
• Seed cake contain 40% protein.
• Fuzz: Consists short unconvoluted hair.
• Lint: Long convoluted hair
• Seed of cotton are prepared by ginning (Mechanical separation of long fiber) and delinting (removal of fuzz).
• Desiccation: dehydration of tissues. Done after 2-3 weeks of defoliation.
• Gossypol : Volatile poisonous phenolic compound of which kernel contains 0.4-2%.

1. ihrsutum x G. barbandense à New world cotton.
2. arboretum x G. herbaceum à Old world cotton

• Strength of cotton is measured by

Ginning % =  (Wt. of lint/ wt. of seed cotton)x 100

Types of branching in cotton

1. Monopoidal : Bears only leaf but no flowers.
2. Sympoidal: reproductive branch which bears the flowers.