四川农业大学学报 ›› 1992, Vol. 10 ›› Issue (03): 522-526.doi: 10.16036/j.issn.1000-2650.1992.03.022

• 研究论文 • 上一篇    下一篇

冈优12的组合特性及其高产技术途径的探讨

李天, 田彦华   

  1. 四川农业大学水稻研究所, 雅安 625014
  • 收稿日期:1992-06-25 出版日期:1992-09-30 发布日期:2017-04-22

STUDY OF CHARACTERISTICS OF “GANGYOU 12” HYBRID RICE COMBINATION AND ITS TECHNOLOGY FOR HIGH YIELD

Li Tian, Tian Yianhua   

  1. Rice Research Institute of Sichuan Agricultural University, Yaan, Sichuan, China, Zip Gode: 625014
  • Received:1992-06-25 Online:1992-09-30 Published:2017-04-22

摘要: 本文研究了杂交水稻新组合冈优12的组合特性及其高产技术途径。结果是:冈优12具有叶片宽大直立,功能期长,分蘖力中上,成穗率较高,大穗中粒,经济指数高等特性;其库容量大,源流不协调;结实率与产量存在显著相关,着粒数(在163粒以上)与产量存在显著负相关。高产技术途径是在保证足够穗数基础上,减少不实颖花数,提高结实率。

关键词: 水稻, 栽培技术, 产量

Abstract: The combinating characteristics of ‘Gangyou 12’——a new hybrid rice combination and its practice technology for high yield were studied. The results showed that leaves of this hybrid were large, broad and erect with longer functional period. The tillering capacity was upper middle. Panicles were big with middle-sized seeds. The proportion of ripe ears and economic hades were higher. Pool capacity was high while source and flow were incoordlnated. An obvious positive correlation between percentage of seed set and yield existed. A significant negative correlation between grain no. per panicle and yield was observed. The practice technology for high yield is to ensure getting enough panicles, then to decrease no. of sterile spikelets and increase percentage of seed set.

Key words: LOWLAND RICE, CULTURAL TECHNIQUE, YIELD

中图分类号: 

  • S511.1