摘要
为了探明水稻强化栽培技术在两系法杂交稻及其再生稻生产上应用的可行性,以5个两系法杂交稻组合和三系杂交稻组合汕优63(对照)为试验材料,对其产量及产量性状进行了比较研究.结果表明,采用强化栽培,6个杂交组合平均产量比常规栽培增产5.38%,每穗总粒数的增加是强化栽培产量提高的最主要原因;与常规栽培比较,强化栽培再生季产量下降9.62%,有效穗的大幅度减少是强化栽培再生稻减产的主要原因.此外,不同杂交稻组合对强化栽培的适应性程度不同,并表现出与具体的特性有关.
In order to evaluate the utilization of system of rice intensification (SRI)on twoline hybrid rice and its ratoon crop,an experiment is conducted with five twoline and a threeline hybrid rice as materials.Results show that with SRI,the average yields of six rice crosses increase 5.38% more than that of with traditional cultural method (TCM),the increase of grains per panicle being the main reason for its yield increase.The average total yield of main and ratoon cropswithSRIdecreases 9.62% compared with that with TCM. The results imply the SRI is not adapted to ratoon crop. The adaption of rice to SRI is variable for different hybrid rice combination, which is dependent on the rice growth features.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2003年第2期89-91,共3页
Journal of Hunan Agricultural University(Natural Sciences)
基金
国家"863"计划资助项目(Z16 01 01)
关键词
强化栽培
两系杂交稻
再生稻
栽植密度
产量性状
system of rice intensification
two-line hybrid rice
ratooning rice
wide space planting
yield components
