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对10个花香A杂交组合参加水稻区域试验的产量和品质数据进行相关分析和通径分析。结果表明,产量性状中日产量与有效穗数、株高与穗长、总粒数与实粒数均成极显著正相关,日产量对产量的贡献最大(0.7205),其次为有效穗数;米质性状中整精米率与垩白粒率、长宽比与垩白粒率、垩白度呈显著负相关。提出了以花香A为亲本在配制杂交组合时,应主要通过提高其日产量、有效穗数,并适当延长其生育期、降低其株高与穗长来提升产量;同时,适度降低籽粒长宽比,从而提高灌浆效率,降低垩白粒率、垩白度,进而提高整精米率,提升稻米品质。
Correlation analysis and path analysis were conducted on the yield and quality data of 10 floral A hybrid combinations involved in rice regional trials. The results showed that the daily yield was significantly and positively correlated with the effective panicle number, the plant height and the spike length, the total grain number and the real grain number. The daily yield contributed the most to the yield (0.7205), followed by the effective panicle number. There was a significant negative correlation between milled rice rate and chalky grain rate, aspect ratio, chalky grain rate and chalkiness in the grain quality traits. Proposed floral A as the parent in the preparation of hybrid combinations, should be mainly by increasing its daily output, effective panicles, and the appropriate extension of its growth period, lower its height and spike to increase production; at the same time, moderately reduce the grain length and breadth Ratio, thereby enhancing the grouting efficiency, reducing chalky grain rate, chalkyness, and then improve the rate of milled rice, improve rice quality.