Madras Agricultural Journal
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The Temperature Optima for Rice Culture

Abstract

The average per/ha yields of rice in different rice growing regions in India were correlated with the temperature factor (Relative temperature disparity) of the respective regions. The Relative temperature disparity (RTD) factor during the period of grain setting and ripening gave positive correlation with the yield levels. The higher or lower yield potential of rice in a particular region appears to be decided largely by the RTD factor of the respective cropping zone.

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