Response of two cotton cultivars to flawer bud removal

Authors

  • Napoleão Esberard de Macêdo Beltrão
  • Marcus Augustus Cavalcanti
  • Roberto Pequeno de Sousa
  • Laudemiro Baldoino da Nóbrega

DOI:

https://doi.org/10.1590/S1678-3921.pab1990.v25.13704

Keywords:

Gossypium hirsutum r. latifolium, phytomass, seedcotton, leaf area, cotton yield, cotton plant height

Abstract

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.

How to Cite

Beltrão, N. E. de M., Cavalcanti, M. A., Sousa, R. P. de, & Nóbrega, L. B. da. (2014). Response of two cotton cultivars to flawer bud removal. Pesquisa Agropecuaria Brasileira, 25(11), 1619–1626. https://doi.org/10.1590/S1678-3921.pab1990.v25.13704

Issue

Section

CROP SCIENCE