杂交中稻旱作膜秸覆盖的群体库和源效应研究  

Effects of Plastic-Straw Cover on Sink and Source of Population at Upland Cultivation in Middle Hybrid Rice

作　　者：蒋之埙[1] 黄仲青[2] 李奕松[2] 

机构地区：[1]安徽农业大学文理学院,合肥230036 [2]安徽农业大学农学系

出　　处：《安徽农业大学学报》2002年第2期114-118,共5页Journal of Anhui Agricultural University

基　　金：国家重点科技项目 (96-0 0 4-0 1 -1 5 )专题资助

摘　　要：对杂交中稻协优 63进行旱作膜秸覆盖处理 ,结果表明 :杂交中稻旱作膜秸覆盖处理间的库、源效应有显著差异 ,它与稻谷产量呈正相关。以够苗期为界的膜秸接力覆盖处理比不覆盖和全程覆秸处理增产40 % ,比全程覆膜和拔节前覆膜处理增产 1 5 % ;其群体总库容依次多 3 8%和 1 5 % ,经济产量源分别多 3 7%和1The experiment results showed that there were significant differences in effect of plastic straw covered treatments on sink and source of population,and existed positive correlation between yield and sink and source of population The yield was increased from 40% to 15%,the total sink capacity of population was increased from 38% to 15%,the economic yield source was increased from 37% to 19%,compared with non cover and whole course cover of straw,whole course cover of plastic and plastic cover before jointing stage.

关 键 词：膜秸覆盖 杂交中稻 群体库效应 群体源效应 

分 类 号：S511.32[农业科学—作物学]