特优70产量构成因素分析与栽培技术研究  

Analysis of Yield Components and Study on Comprehensive Culture Techniques for Teyou70

作　　者：许旭明 饶鸣钿 廖朝阳 

机构地区：[1]福建省三明市农科所,福建三明365500 [2]福建省沙县农技站,福建沙县365500

出　　处：《江西农业大学学报》2003年第3期331-335,共5页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国家农业科技成果转化资金项目 [0 2EFN2 1 3 5 0 0 3 0 0 7]

摘　　要：通过对特优 70的产量构成因素进行分析 ,明确了各因素对产量的影响和各因素相互之间的关系。结果表明 ,每穗粒数对产量的影响最大 ;穗数、千粒重对产量的影响也较大 ,但未达显著水平 ;结实率对产量的影响程度较低。通过以上分析结果 ,采用了二次回归旋转组合设计 ,对特优 70进行移栽叶龄、密度、施N量 3项农艺措施的综合栽培技术研究。建立产量与 3项农艺措施的回归模型 ,分析了农艺措施对产量的影响 ,结果表明 ,影响产量的主要因素是叶龄和密度。经微机模拟筛选和综合分析 ,其高产的栽培技术措施是 3 .0～5 .5叶移栽 ,每公顷插 2 5 .5～ 3 3万丛 ,施N 1 40～ 2 2 3kg。The effects of the factors(spikelet number per panicle, panicle number per hectare, 1000-grain weight and seed setting percentage) on yield and the interaction among these factors have been defined through analyzing the yield components of Teyou70. The analysis result shows that the effect of spikelet number per panicle on the yield of Teyou70 is the greatest; panicle number per hectare and 1000-grain weight also have some effect on the yield of Teyou70 but do not reach the significant level; seed setting percentage doesn't have much effect on the yield of Teyou70.With the above results, the method of quadrotic second order regression rotation design is used to study the comprehensive cultivation techniques of hybrid rice Teyou70. Three influential factors for consideration are the leaf stage for transplanting, planting density and application amount of nitrogen. The regression mathematical model for yield associated with the three factors has been established. The effects of the agronomy factors on the yield of Teyou70 are analysed by using the mathematic model .The results show that the main factors influencing the yield are the leaf stage for transplanting and planting density. Stimulated and optimally selected by computer, the measure has been obtained, which means transplanting at 3.0～3.5 leaf stage with basic seedlings 255~330 thousand per hm 2 and applying amount of N 140~223kg per hm 2.

关 键 词：特优70 产量 构成因素 栽培技术 杂交水稻 回归设计 效应分折 

分 类 号：S511[农业科学—作物学]