volume 35 issue 2 (june 2001) : 1118 -120
EFFECT OF CERTAIN GROWTH REGULATORS ON GROWTH, , YIELD AND QUAUlY OF RICE (ORYZA SATIVA L.)
1Department of Crop Physiology,
C.S. Azad University of Agriculture andTechnology, Kanpur - 208 002, Inclia
ABSTRACT
Effect of five growth regulators each in two concentrations viz. IAA @ 25 and 50ppm, CCC @ 2000 and 4000ppm, Miraculan @ 5 and 10ppm, Cytokinin @, 5 and 10ppm and Alar @ 2000 and 3000ppm with one unsprayed control on growth, yield and quality of rice variety Sarju-52 under field conditions, was studied. Plant height was significantly reduced by higher concentrations of both CCC and Alar. Higher dose of IAA @50ppm significantly increased plant height and produced highest grain yield of 5533 kg/ha, as against 4720 kg/ha in the control. The increase in gram yield were contributed largely by increased chlorpophyll content, panicles per plant, grains per panicle, grain weight per plant, 1000 grain weight and high harvest index. Cytokinin hastened the flowerlngand maturlty, whereas CCC delayed it, Higher protein content in mature grains was also retordedunder the higher dose of cytokinin.
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Indian Journal of Agricultural Research
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