垩白粒率和垩白度是中籼杂交稻组合稻米品质提升的主要障碍因子。
Improving the quality of medium indica hybrid rice combinations was restricted by chalky rice rate and chalkiness degree.
在短米粒型组合中，垩白粒率和垩白度与其他主要品质性状相关性均不显著。
The chalky rice rate and chalkiness degree were not significantly correlated with other quality traits of short grain type combination.
以2 5个杂交中稻组合为材料，研究了品种齐穗期库源结构对稻米整精米率与垩白粒率的影响。
The effect of ratio source to sink at fulling head on percentage of head milled rice and chalky rice was investigated via 25 mid-season rice hybrids.
在本试验条件下，分蘖穗率高低对稻谷糙米率、精米率、整精米率等加工品质和垩白粒率、长宽比等外观品质无显著影响。
It was found that tiller ear rate exerted no significant effects on milling quality and appearance quality of rice in the given conditions.
施用硅肥能显著改善稻米品质，主要表现为稻米的糙米率、精米率和整精米率显著提高，稻米的垩白粒率和垩白度显著降低。
The rice quality was significantly improved especially for brown rice rate, milled rice rate, head rice rate, chalky grain rate and chalkiness.
糙米率、精米率、粒长和长宽比的变异系数较小，垩白米率、透明度和垩白度的变异系数较大。
Variation coefficients of grain chalkiness, translucency and chalkiness were high, but those of brown rice rate, milled rice rate and head rice rate were low.
结果表明，垩白性状、直链淀粉含量、精米率、粒长的国家一级达标率极低；
The results showed that: Chalky trait, amylose content, milled rice recovery and grain length was seldom reached the first class of national rice standard.
分析“八五”参试品种各项品质性状表现，参试品种品质仍不理想，大多数品种整精米率、垩白率、垩白面积、粒型表现欠佳。
In terms of various quality characters, most of the cultivars tested were, however, not satisfactory in head milled rice recovery, chalkness ratio, chalkness area and grain shape.
分析“八五”参试品种各项品质性状表现，参试品种品质仍不理想，大多数品种整精米率、垩白率、垩白面积、粒型表现欠佳。
In terms of various quality characters, most of the cultivars tested were, however, not satisfactory in head milled rice recovery, chalkness ratio, chalkness area and grain shape.
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