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作物学报 ›› 2009, Vol. 35 ›› Issue (1): 162-172.doi: 10.3724/SP.J.1006.2009.00162

• 耕作栽培·生理生化 • 上一篇    下一篇

免耕抛栽对水稻产量及其源库特性的影响

吴建富1,2,潘晓华2,*,石庆华2   

  1. 1江西农业大学国土资源与环境学院，江西南昌330045；2江西农业大学农学院/江西省作物生理生态与遗传育种重点实验室，江西南昌330045
  • 收稿日期:2008-05-21 修回日期:2008-07-18 出版日期:2009-01-12 网络出版日期:2008-11-18
  • 通讯作者: 潘晓华
  • 基金资助:

    本研究由国家“十一五”科技支撑计划项目（2006BAD02A04），江西省教育厅项目资助

Effects of No-tillage Cast Transplanting on Rice Yield and Its Source-Sink Characteristics

WU Jian-Fu1,2,PAN Xiao-Hua2,*,SHI Qing-Hua2   

  1. 1College of Land Resources and environment,Jiangxi Agricultural University,Nanchang 330045,China; 2 College of Agronomy,Jiangxi Agricultural University/Key Laboratory of Crop Physiology,Ecology,and Genetic Breeding of Jiangxi Province,Nanchang 330045,China
  • Received:2008-05-21 Revised:2008-07-18 Published:2009-01-12 Published online:2008-11-18
  • Contact: PAN Xiao-Hua

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1344

被引次数

78

摘要：

于2005—2006年在双季稻田以翻耕处理为对照，研究了免耕抛栽对水稻产量及其源库特性的影响。结果表明, 每公顷有效穗数免耕抛秧处理略低于翻耕抛秧而高于翻耕移栽，结实率高于翻耕处理。随着免耕次数的增加，各处理产量基本持平。水稻一生中叶面积指数、抽穗后水稻群体光合势、势粒比、颖花伤流量、源库增量比和籽粒平均灌浆速率均免耕处理高于翻耕处理，而粒叶比则相反；剑叶中叶绿素含量以免耕高于翻耕，而丙二醛(MDA)含量以免耕低于翻耕。免耕抛栽水稻后期不易早衰，有利于同化物的转运和结实率的提高。

关键词: 稻田, 双季稻, 免耕抛栽, 产量, 源库特性

Abstract:

The experiments were conducted in double cropping rice field during 2005–2006 to study the effects of different tillage methods on rice yield and its source-sink characteristics. The results showed that the effect on panicle number was lower and on filled grain percentage was higher in no-tillage cast transplanting treatment than in conventional tillage cast transplanting treatment. With the time of no-tillage increased, rice yield in different treatments did not differ significantly. The leaf area index during growth stages, the population photosynthetic potential, photosynthetic potential-grain ratio, bleeding potential in neek of spike, ratio of source to sink in increment and mean grain filling rate in no-tillage treatment were higher than those in conventional tillage treatment, but the grain-leaf ratio in no-tillage treatment was lower than that in conventional tillage treatment. The content of chlorophyll was higher and the content of MDA was lower in flag leaf after heading in no-tillage treatment than in conventional tillage treatment. No-tillage treatment was delayed leaf senescence, facilitated the accumulation and transportation of carbohydrate, and improved grain setting rate.

Key words: Paddy field, Double cropping rice, No-tillage cast transplanted, Yield, Source-sink characteristics

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