论文部分内容阅读
对9个早熟及产量性状的有关遗传参数进行了相关分析和通径分析,结果表明,高强度选择可使目前推广品种(系)的丰产性和早熟性得到进一步改善;育种选择策略应从提高株铃数和衣分入手,选择第一果枝节位低、开花早、脱落少和铃不太大的类型,其中早代果枝节位严选,开花期、结铃率和衣分大群体选择,株铃数连续选择,就可实现培育出高产、早熟品种(系)最终目标.
The correlation analysis and path analysis of nine related genetic parameters of early maturity and yield traits showed that high yielding selection could further improve the high yield and precocity of the current varieties (lines) The number of bells and the percentage of lint begin with, choosing the first fruit branch with low bit, early flowering, less shedding and not too large bell type, of which the early fruiting branches of the bit strict selection, flowering, boll rate and large groups of clothing selection, Continuously choose the number of strains of bell, you can cultivate a high yield, early maturing varieties (lines) the ultimate goal.