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2 0 0 0年 3～ 1 0月选择新近配组成功的、有苗头的优质杂交水稻组合 ,与在生产中已初步得到普及的组合共 2 6个 ,以汕优 63做对照 ,结合品种比较试验对其品质表现进行了考察。结果表明 ,新组合与原有组合相比 ,在粒型的长 /宽比、整精米率和综合食味等方面有了较大改进 ,表明我国杂交水稻优质化育种已经取得了长足的进步 ,但在垩白粒率和垩白度方面基本没有多少改进 ,它们将直接影响杂交水稻优质化的整体水平 ;少数组合还存在直链淀粉含量偏低的问题。综合生育期、抗逆性、产量、品质与商品性进行考虑 ,初步认为新组合取代汕优63成为新一代当家组合已成为一种大趋势
From March to October in 2000, we selected the newly established high-quality hybrid rice combination with high quality and had a total of 26 combinations that have been preliminarily popularized in production and compared with Shanyou 63, The test of its quality performance were investigated. The results showed that compared with the original combination, the new combination had a great improvement in grain length / width ratio, milled rice rate and comprehensive taste, which showed that the quality breeding of hybrid rice in China has made great progress, There is little improvement in chalky grain rate and chalkiness, which will directly affect the overall quality of hybrid rice quality; the few combinations also have the problem of low amylose content. Comprehensive growth period, resistance, yield, quality and merchandise to consider, initially that the new combination to replace Shanyou 63 become a new generation of headed portfolio has become a trend