结果在SP1代发现植株矮化、穗粒重显著增加等少数性状变异。
Result Variations of characters such as dwarfing of stalk, significant increase grain weight per spike etc were observed in SP1 generation.
穗部性状、农艺性状和品质性状除粒色和株高外，选育品种变异性呈下降的趋势，而病害性状多表现出明显的增加。
Except grain color and plant height, the diversity in spike, agronomic and quality characters of bred varieties has the trends to decrease, but to increase in diseases.
本文还讨论了四川小麦幼穗分化过程中引致穗粒数变异的时期，以及安全孕穗、抽穗期。
The stage controlling seed number per ear during ear differentiation, safe booting date and safe heading date of wheat in Sichuan were discussed.
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