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Research Article Open Access

Climatic Factors; Cotton Production: Studying its Relationships by Different Applied Statistical Methods

Abstract

The study investigated the effect of various climatic factors on flower and boll production and retention in cotton. Also, investigated the relationship between climatic factors and production of flowers and bolls obtained during the development periods of the flowering and boll stage, and to determine the most representative period corresponding to the overall crop pattern. Evaporation, sunshine duration, relative humidity, surface soil temperature at 18:00 h, and maximum air temperature, are the important climatic factors that significantly affect flower and boll production. The least important variables were found to be surface soil temperature at 06:00 h and minimum temperature. There was a negative correlation between flower and boll production and either evaporation or sunshine duration, while that correlation with minimum relative humidity was positive. Higher minimum relative humidity, short period of sunshine duration, and low temperatures enhanced flower and boll formation.

Zakaria M. Sawan

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