对杂交中粳80优121在8个不同播期下的生育期、产量因素、理论产量与影响产量因素总积温、光照时数的相关研究。
The relationship between the growth period, yield component of japonica hybrid rice 80 you 121 and accumulated temperature, light duration was studied.
在今后的晚粳育种中，必须加强优质育种，努力改善稻米的外观品质和食味品质。
We must strengthen breeding for high quality so as to improve appearance property and eating quality in the future.
结果表明，20份云南光壳稻包括13个变种69个变型，以偏粳型品种占较高比例，籼粳分类品种中偏粳型品种的广亲和性较好。
The results indicated that 20 Yunnan nuda rices have 13 varieties and 69 forms, japonicaclinous rice have higher proportion in tested cultivars, and have good wide compatibility.
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