Studies on the F3 generation of intervarietal crosses in rice

Abstract

The present study was conducted in the Division of Agricultural Botany, College of Agriculture, Vellayani during the period from March to June 1974. Nine characters in the F3 generation of the intervarietal crosses of rice was studied. The crosses involves three local varieties, Navara, Ptb-28 and Ptb-29 and the two high yielding varieties , Anapurna and Triveni. Correlation of the yield with four characters was also studied. The characters, viz. flowering duration, plant height, total number of tillers, panicle length, grain yield, 1000 grain weight, ear weight and apikelet sterility are inherited quantitatively and are controlled by more than one gene. Spikelet sterility is more in the Anapurna X Navara cross