适当的早播或晚播可以降低稻米垩白度；
Rice chalkiness degree decreased in timing early or late sowing.
而品种与地点互作对垩白面积和垩白度的影响较大。
Rice chalkiness area and degree were liabled to be varied by interaction of locations and varieties.
目前南方水稻产区的劣质米主要来自高垩白度的早籼稻。
Presently, the poor quality rice in southern China mainly comes from early indica rice with more chalkiness.
翻耕移栽秸秆还田也能提高整精米率，降低垩白率和垩白度。
Transplanting with plowing and straw manuring also increased the head rice rate and slightly reduced the chalky rice rate and chalkiness.
翻耕移栽秸秆还田也能提高整精米率，降低垩白率和垩白度。
The rates of brown, milled and head rice increased while chalky rice rate and chalkiness decreased in interplanting with zero tillage.
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.
该软件能迅速读入数字化米粒图像，快速、客观、准确地测得米样的垩白度。
The software can read the digital images of rice samples and measure the chalkiness index quickly, objectively and accurately.
目前稻米品质存在的主要问题是垩白米率高、垩白度高、整精米率低和食味差。
The major quality problems are higher chalky rice rate, higher chalkiness score, lower head milled rice yield, and poor eating quality.
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.
以生产上大面积推广应用的水稻主栽品种为样本，分析了东北全区域活动积温与水稻垩白率、垩白面积、垩白度的关系。
Using the main varieties in the production as samples, the relationship between the active accumulated temperature and chalkiness of rice was analyzed.
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.
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.
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