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采用直线相关分析方法 ,对 1989～ 2 0 0 0年江苏省常规中籼稻区域试验各参试品种的产量及其构成因素 :亩穗数、穗实粒数、千粒重、穗重、株高等进行了分析 ,分析结果表明 ,江苏省常规中籼稻育种已逐渐由多穗型向重穗型演变 ,故今后常规中籼稻育种要在优质的前提及合理改良株型的基础上 ,以提高穗重为核心 ,即保持现有穗数 ,增加每穗实粒数 ,提高粒重
The linear correlation analysis was used to analyze the yield and its components of the tested varieties in the conventional mid-indica rice regional trial in Jiangsu Province from 1989 to 2000: the number of ears per acre, the number of spikelets per acre, the weight per spike, the spike weight per plant, the plant height Analysis and analysis showed that conventional indica rice breeding in Jiangsu Province has gradually evolved from panicle type to panicle type, so conventional medium indica rice breeding should be centered on improving the panicle weight on the basis of good quality and reasonable plant type improvement , That is, to maintain the existing panicles, increase the number of grains per panicle, increase grain weight