Response of two cotton cultivars to flawer bud removal
DOI:
https://doi.org/10.1590/S1678-3921.pab1990.v25.13704Keywords:
Gossypium hirsutum r. latifolium, phytomass, seedcotton, leaf area, cotton yield, cotton plant heightAbstract
The response to flower bud removal of two cotton (Gossypiurn hirsutum L.r. latifolium Hutch.) cultivars, CNPA Precoce 1 (short season and fast fruiting) and CNPA 3H (fuil season) was investigated. The experiment was conducted in 1986 under greenhouse condition in a 1:10 sou (Regosoil) manure mixture at the National Cotton Research Center - Campina Grande, PB, Brazil. It was found that removal of flower buds immediately after the initiation of squaring and even for a 15-day period, significantly increased leaf area per plant and root phytomass. Concerning total phytornass and plant height it was observed that the increments were different for each cultivar indicating that for a bud removal period equal or superior to 30 days the cultivar CNPA 3H invested significantly better than CNPA Precoce 1 on plant height and overall vegetative structures. A significant reduction on seed cotton production was found for the first harvest on both cultivars even when the but removal period was 15 days.
