贵州超高产杂交稻生育习性和种植经验

通过调查,在简述杂交稻生育习性基础上,经过汇总、筛选、归类及模型分析,将贵州省当前主栽超高产杂交水稻品种分为多穗、兼用和大穗3种类型,并建立了不同类型产量因素及互作项的回归模型,模型相关系数高,理论值与观测值之间的拟合误差小。围绕数学模型提出的关键性技术措施,对挖掘贵州水稻超高产潜力,从理论到实践均有重要意义。

Growing Characters of Hybrid Rice Varieties with the Super-high-yield and Its Cultivation Techniques in Guizhou

The recent main hybrid rice varieties in Guizhou are divided into three types(multiple spike,dual purpose and big spike) and the regression models of affecting yield factors of different types and of interaction of affecting yield factors are built after collection,selection, classification and model analysis based on reviewing the growing characters of the hybrid rice varieties.The correlation coefficients of the models are up to very significant and significant levels and the matching error value between theoretical and observation value is small.The key cultivation technique stemmed from analyzing the mathematical models has the important meaning in exploring the potentiality of hybrid rice varieties with super-high-yield in theory and practice.