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Abstract: Agronomic traits and heteroses of javanica varieties and the indica/javanica hybrids inChangsha are reported.Javanica rice exhibits long panicles,big grains,less panicles per plant,a longgrowth duration and high plant height in Changsha.The hybrid of Pei’ai 64S/javanica possesses positiveheterobeltiosis in culm height,panicle length,panicles per plant,spikelets per panicle,grains per panicle,yield per plant,theoretic yield per hectare and actual yield per hectare;performs negative heterobeltiosisin days to flower,seed setting rate and 1000-grain weight.There are significant linear regression
Abstract: Agronomic traits and heteroses of javanica varieties and the indica / javanica hybrids in Chhangsha are reported. Javanica rice exhibits long panicles, big grains, less panicles per plant, a long duration and high plant height in Changsha. The hybrid of Pei’ai 64S / javanica possesses positiveheterobeltiosis in culm height, panicle length, panicles per plant, spikelets per panicle, grains per panicle, yield per plant, theoretic yield per hectare and actual yield per hectare; performs negative heterobeltiosis days to flower, seed setting rate and 1000- grain weight.There are significant linear regression