Madras Agricultural Journal
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INFLUENCE OF RELATIVE HUMIDITY, HEAT UNITS AND HOURS OF SUNSHINE ON GRAIN SORGHUM.

Abstract

                                In a study on influence of relative humidity. heat units and hours of sunshine. under different planting dates and plant population on growth and yield of hybrid sorghum (variety-CSH 5). It was found that the values of relative humidity were higher close to ground (5cm. height) and the same deceased gradually as the height of observation increases, Panicle emergence to grain maturity is a critical period for final grain produc- tion of Jowar. If the accumulation of heat units, hours of sunshine and the relative humi- dity inside the crop canopy is maximum during this period higher grain yield can be obtained.

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