Design principles and parameters of rice ideal panicle type

查看全文 作　　者：XU Zhengjin CHEN Wenfu ZHANG Longbu YANG [1]Shouren 机构地区：[1]Rice Institute of Shenyang Agricultural University, Key Laboratory ofCrop Physiology, Ecology, Genetics and Breeding, Ministry of Agricul-ture, Key Laboratory of Northern Japonica Rice Breeding of Liaoning,Shenyang 110161 出　　处：《Chinese Science Bulletin》索引2005年第50卷第19期,共4页 基　　金：This work was supported by the National Natural Science Foundation of China (Gruant No.30370866). 摘　　要：On the basis of many years of research at the laboratory, and by making reference to the related literature published at home and abroad, in this paper the concept of rice ideal panicle type was introduced, and the principles of rice ideal panicle type design were elucidated. The parame-ters of rice ideal panicle type for Liaoning were preliminarily established as follows: Panicle length <17 cm, neck-panicle curvature <40°, neck panicle length 3―4 cm, neck diameter >2 mm, large vascular bundle and primary branch >15 pieces/panicle, primary branch grain >80 grains/panicle, secondary branch grains concentrating in the middle and upper parts of panicle axis, and panicle type index >0.5. In addition, the possibility of achieving unity of grain yield and quality at a still higher level by creating an ideal panicle type was explored. 关 键 词：水稻 圆锥花序 茎直径 种植技术