广东省栽培稻的米质评价

来源 :广东农业科学 | 被引量 : 0次 | 上传用户:leonmalay
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对我省当前生产上应用的89个栽培稻品种(组合)的米质进行了13个项目的测定。结果表明,这些品种的主要品质特点是:粒长中等,粒型适中,垩白率较大,直链淀粉含量高,胶稠度硬,糊化温度低,蛋白质含量中等。总的来说,大多数品种品质较差,尤以常规早稻品种更甚。提出改良我省栽培稻品种品质,关键是降低直链淀粉含量,减小垩白率,提高整精米率。指出在当前生产应用的高产稳产品种基础上,有针对性地导入一些优良的品质性状进行改良,将能较快地培育出高产、优质、多抗的水稻良种。 Thirteen items were measured on the quality of 89 cultivated rice varieties (combinations) currently used in our province. The results showed that the main quality characteristics of these varieties are: medium grain size, medium grain size, large chalkiness rate, high amylose content, thick gel consistency, low gelatinization temperature and medium protein content. In general, most varieties are of poor quality, especially the conventional varieties of early rice. Proposed to improve the quality of cultivated rice varieties in our province, the key is to reduce amylose content, reduce the rate of chalkiness, improve the rate of whole rice. Based on the current high yield and stable variety of production and application, it is pointed out that the introduction of some good quality traits in a targeted way and the improvement will speed up the breeding of high yield, high quality and multi - resistance rice varieties.
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