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.
不同土壤的矿质养分含量增加可降低稻米垩白；
The increased content of the soil mineral nutrients could reduce chalkiness rate of rice.
这在少垩白品种中优早3号中表现得尤为显著。
This effect could be clearly showed in less chalky rice variety Zhongyouzao 3.
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.
在适宜密度条件下蛋白质含量较高，垩白率和直链淀粉含量较低。
Under suitable density condition, protein content increased and amylose content, head rice rate and chalk grain decreased.
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.
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.
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.
结果表明，在水稻生长的不同阶段，控制喷施植酸浓度可提高糙米率，降低稻米垩白。
The result shows that spraying different concentration of phytic acid may increase rice rate and decrease chalk rate.
实验结果表明，温度越高，腹背径向的细胞越扁，细胞数目越多，越易导致垩白的发生；
The results showed that the chalkiness easily formed under the conditions of high temperature treatment on the dorsal-ventral radical part with many flat small cells.
穗部不同粒位籽粒垩白性状改良的效果不同，穗顶部和穗中部的改良效果明显优于穗基部。
The chalkiness improvement was better in the top and the middle grains than the bottom ones within the panicle.
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.
吴建国、刘长东、任玉玲、杨国花和石春海，基于计算机视觉的稻米垩白指标快速测定方法研究。
Wu J. g, C. D. Liu, Y. L. Ren, G. H. Yang and C. H. Shi, Rapid test method of rice chalkiness based on computer vision system.
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.
垩白、整精米率和直链淀粉含量是籼稻品质改良的重点，垩白和整精米率是粳稻品质改良的重点。
Reducing chalky grain and increasing head rice rate were important in japonica rice quality improvement. (3) The quality of indica hybrid rice was improved significantly.
以冈优527(杂交籼稻)和窄叶青8号(常规籼稻)为材料，研究垩白对稻米蒸煮食味品质及营养品质的影响。
The effect of chalkiness on eating, cooking and nutritional quality was investigated with Gangyou 527 (indica hybrid rice) and Zhaiyeqing 8 (conventional indica rice) as materials.
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.
文章综合分析了水稻垩白与其他稻米品质性状的相关性、垩白形成机理、经典遗传以及分子遗传方面的国内外研究进展。
This paper reviews the current status of correlation between rice chalkiness and other rice quality characters, formative mechanism, and classical and molecular genetics for rice chalkiness.
以不同类型北方粳稻品种为试材，研究了中肥节水灌溉、高肥节水灌溉、高肥正常灌溉、中肥正常灌溉处理对垩白的影响。
With different spike types of rice varieties as materials, the field experiments on the effects of fertilizer and irrigation on cooking quality were carried out.
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.
主要结果如下：供试材料品质性状除垩白大小外，国优一级达标率为25%以上，而国优二级达标率均在87.5%以上；
Main result is: the quality traits of tested materials that reach GBI were over 25% and which reach GB II were over 87.5% except for chalking dimension;
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.
通过对稻米垩白与直链淀粉含量的表型相关分析和条件性状分析表明，稻米垩白与直链淀粉含量间存在一定程度的正相关关系。
The phenetic correlation analysis and conditional trait analysis between chalkiness and amylose content showed that these two quantitative traits were positively correlated.
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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