关键词: 籼型, 杂交稻, 稻米品质, 营养, 遗传

Abstract: The rice quality characteristics were studied by variance analysis with 14 combinations from 7 homonucleus-alloplasmic lines crossed with two restorer by 7×2 partial dialled cross design. The results indicated as follows: 1) The effect of cytoplasms was not significantly different in alkali spreading value but significantly different in fat content and protein content and highly significantly different in gel consistency, amylose content, brown rice rate. 2) The effect of nucleus was not significantly different in alkali spreading value and gel consistency, but significantly different in brown rice rate and highly significantly different in fat content, protein content, amylose content. 3) The effect of nucleus-cytoplasm interaction was not significantly different in alkali spreading value and fat content but highly significantly different in gel consistency, brown rice rate, amylose content, protein content. Most of male sterility cytoplasm showed positive effect or the same one as fertile cytoplasm and a few of male sterility cytoplasm showed negative. It suggested that some quality characteristics of rice were controlled by nucleic gene, cytoplasmic gene and nucleus-cytoplasmic gene interaction but nucleic gene was prominent.

Key words: Genetical effect of Cytoplasm, Homonucleus-plasmic cytoplasmic male sterile line, Indica type hybrid rice