Efecto de parámetros microclimáticos sobre la fisiología floral y rendimiento del algodón en rama [Gossypium hirsutum]

Abstract

The influence of microclimatic parameters of the environment on production of flower, flowers shedding and yield of seed cotton as modified by the use of black rubber, white rubber and pearl millet straw as mulches on MCU 5 cotton were studied during 1974-1975 winter season under irrigation at the Tamil Nadu Agricultural University, Coimbatore, India. Simple and multiple correlations were worked including age also as a physiological factor. The analysis indicated that in addition to temperature, vapour pressure prevailing in the morning had a high correlation of 0.89 with flower production. Vapour pressure also influenced flower shedding but to a lesser extent. Soil temperature in the afternoon had a negative correlation with yield. Relative humidity in the early morning has a negative correlations while in the afternoon had a positive correlation, indicating the role of relative humidity of the environment in deciding the yield These correlation studies have also indicated the possibility of predicting the yield based on microclimatic conditions.