谷粒形状与稻米品质相关性研究

通过对安徽省农科院水稻所选育的17个水稻品种（组合）进行粒形分类，并对谷粒形状与稻米品质的相关性进行分析。结果表明，供试品种（组合）的粒长多属短粒形，长宽比多为短圆形。谷粒形状（粒长、粒度、长宽比）与加工品质（糙米率、精米率、整精米率）呈显著或极显著相关，与蒸煮品质中的碱消值呈显著相关；千粒重对各稻米品质性状的影响均未达显著水平。并提出水稻品质育种只有做到粒长、粒重兼顾，才有可能在提高产量的同时达到改良米质的目的。

Studies on the Correlation Between Grain Shape and Grain Quality in Rice

rice varieties (combinations), developed by the Rice Research Institute of Anhui Academy of Agricultural Sciences, were classified according to the grain shape criteria issued by Chinese Ministry of Agriculture. Most of them were short in grain length (94.12%) or short round in grain shape, i.e., L /W ratio (64.70%). The correlation between grain shape (length, width and L /W ratio) and other quality characters was analyzed. The results showed that the correlations between grain shape (length, width and L/W ratio) and milling quality (brown rice, milled rice and head rice) were significant or very significant, the correlations between grain shape and gelatinization temperature (alkali value) were significant; the correlations between 1 000 grain weight and other quality characters (grain shape characters not included) were not significant. According to the results, consideration must be given to both grain length and grain weight to improve grain quality as well as to increase grain yield in rice quality breeding.