不同抛栽方式对水稻生育特性与产量的影响  

Effect of Different Cast Seedling Methods on Growth Characteristics and Yield Formation of Rice

作　　者：费震江[1] 程建平[1] 吴建平[1] 张集文[1] 柯传勇[2] 

机构地区：[1]湖北省农业科学院粮食作物研究所,武汉430064 [2]华中农业大学植物科技学院,武汉430070

出　　处：《湖北农业科学》2009年第7期1564-1567,共4页Hubei Agricultural Sciences

基　　金：国家重大科技专项资助项目(2006BAD02A02);国家农业科技成果转化资金项目(2006D10019)

摘　　要：采用有序抛栽、旱育保姆无序抛栽、旱育保姆有序抛栽和无序抛栽(对照)不同抛栽方式对比,以研究水稻优化定点抛栽的生育特性和产量形成特性。结果表明,有序抛栽和旱育保姆有序抛栽的单位面积穴数变异较小。旱育保姆无序抛栽、旱育保姆有序抛栽的高峰苗出现期偏迟。有序抛栽和旱育保姆处理可提高抛栽水稻的成穗率。旱育保姆处理有利于降低抛栽水稻的株高。有序抛栽处理有利于提高水稻的叶面积指数和每穴植株总干重。有序抛栽、旱育保姆无序抛栽、旱育保姆有序抛栽的实际产量较无序抛栽分别增产16.21%、10.02%和24.57%。旱育保姆有序抛栽的每穴有效穗数、每公顷有效穗数、结实率和千粒重较无序抛栽显著提高。Growth characteristics and yield formation of rice with optimized fixed-point cast seedling were studied by using treatments of cast seedling orderly, cast seedling disorderly with dry nanny, east seedling orderly with dry nanny and cast seedling disorderly （CK）. The results showed that variations of hills per unit area by cast seedling orderly and cast seedling orderly with dry nanny were smaller. Seedling emergences of the peak period by cast seedling disorderly with dry nanny and cast seedling orderly with dry nanny were later. Panicle rate of rice was improved by cast seedling orderly and treatment of dry nanny. Plant height of rice by cast seedling with dry nanny was reduced. Cast seedling orderly increased leaf area index and total plant dry weight per hill. The actual yield of rice by cast seedling orderly, cast seedling disorderly with dry nanny and cast seedling orderly with dry nanny were 16.21%, 10.02% and 24.57% higher than that of cast seedling disorderly, respectively. Panicle per hill, effective panicle per hectare, seed-setting rate and 1000-grain weight were improved markedly by cast seedling orderly with dry nanny .

关 键 词：水稻 抛栽方式 生育特性 产量 

分 类 号：S511[农业科学—作物学] S311