优化措施对特种稻库源特征和产量形成的影响  

Effects of Optimized Measures on Characteristics of Source-Sink and Yield Formation of Special Rice

作　　者：谢必武[1] 张甲 晏承兴 张世平 袁德梽[1] 邹永翠[1] 熊辉俊[1] 

机构地区：[1]重庆三峡职业学院,重庆万州404155 [2]重庆三峡农业科学院,重庆万州404155 [3]重庆优市农业发展有限公司,重庆万州404155

出　　处：《湖北农业科学》2014年第21期5078-5083,共6页Hubei Agricultural Sciences

基　　金：重庆高等职业技术院校应用技术推广中心资助项目(TG1310002)

摘　　要：应用三因素二次正交回归旋转组合设计,以三峡糯1号为材料,建立了特种稻栽插密度、尿素施用量、移栽叶龄与产量关系的数学模型,并通过模拟寻优,提出了三峡糯1号产量8 362.87 kg/hm^2以上的优化栽培方案为栽插密度23.48万～26.65万穴/hm^2、尿素施用量194.41～259.53 kg/hm^2、移栽叶龄3.73～5.27叶;高产机理研究结果表明,三峡糯1号的结实率比对照胜泰1号高19.48％,齐穗期、成熟期叶面积指数和成熟期的地上部干物重分别比对照增加23.69％、67.66％和12.20％,而齐穗期的消光系数和齐穗至成熟叶面积衰减率均与产量呈负相关关系,“库”大“源”足是三峡糯1号高产的主要库源特征.Using rotation combination design of three factor and two orthogonal regression and taking the Glutinous rice Three Gorges Nuo No.1 as material,the mathematical model of planting density,urea administration,transplant time correlted with yield special rice was established.Through simulation and optimization,the Glutinous rice three Gorges Nuo No.1 had a yield of 8 362.87 kg/hm^2 or more.The planting density was 23.48×104～26.65×104 point/hm^2.Urea content was ranged from 194.41 to 259.53 kg/hm^2.Transplant time was 3.73～5.27 leaves.The results of high yield showed that the seed-setting rate of the Glutinous rice Three Gorges Nuo No.1 was 19.48% higher than that of the Shengtai No.1 CK）.The heading,leaf area index of mature stage and maturity stage,the above ground dry matter weight were increased by 23.69%,67.66% and 12.20%.The extinction coefficient at full heading stage and from heading to maturity leaf area attenuation rate were negatively correlated with yield.The Glutinous rice Three Gorges Nuo No.1 had the big Sink and adequate sources.

关 键 词：特种稻 三峡糯1号 库源特征 优化栽培 产量模型 

分 类 号：S511.23[农业科学—作物学]