论文部分内容阅读
研究了水稻两用核不育系培矮 64S系列组合F1的杂种优势 ,F1与父本各性状间的关系及F1各性状间的相关程度。结果表明 ,F1只有穗粒数和单株穗数存在正向杂种优势 ,株高、穗长、穗实粒数、千粒重都为负向优势 ;F1株高与穗长、千粒重呈极显著和显著相关。单株穗数与所有性状都呈负相关
The heterosis, the relationship between the F1 traits and the male parents and the correlation between the F1 traits were studied. The results showed that there was a positive heterosis in the number of spikelets per plant and the number of spikelets per panicle in F1. The plant height, spike length, spikelet number per spike, and 1000-grain weight were all negatively dominant. The plant height, spike length and grain weight per spike of F1 were significantly and significantly Related. Spike number per plant was negatively correlated with all traits