Author(s):

Nirmal Kumar, Deepak Kumar Rawat, Amit Kumar and SP Kushwaha

Abstract: Rice occupies a dominant position amongst the food grain produced in the country. Consumption pattern for rice varies in different parts of the country. Plant height at different stages varied considerably due to different growth regulators. Among the growth regulators, maximum plant height was obtained by the application of IAA-50 ppm followed by IAA 25 ppm, Whereas, Alar 100 ppm reduced the plant height. Increase in plant height was found by the application of IAA. The dry matter accumulation is probably due to increased chlorophyll synthesis, which has been increasing the rate of photosynthesis. Since, plants treated with Alar, TRIA, kinetin, IAA, had relatively higher chlorophyll Content at pre anthesis and post anthesis stages.

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