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作物学报 ›› 2009, Vol. 35 ›› Issue (8): 1562-1567.doi: 10.3724/SP.J.1006.2009.01562

• 研究简报 • 上一篇    

免耕留茬抛秧栽培模式对水稻生育后期叶片衰老特性的影响

肖启银1,2，任万军1,*，杨文钰1,*，卢庭启1，刘代银1,3   

  1. 1四川农业大学，四川雅安625014；1四川省甘孜州农科所，四川康定626000；3四川省农业技术推广总站，四川成都610041
  • 收稿日期:2009-01-12 修回日期:2009-03-20 出版日期:2009-08-12 网络出版日期:2009-06-11
  • 通讯作者: 任万军, E-mail: rwjun@126.com; Tel: 0835-2882612; 杨文钰, E-mail: wenyu.yang@263.net; Tel: 0835-2882004
  • 基金资助:

    本研究由国家“十一五”科技攻关计划“粮食丰产科技工程”项目（2006BAD02A05）和四川省科技攻关项目（04NG020-013）资助。

Effect of Cultivation Method of Broadcasting Rice Seedlings in the Field with Standing-Stubbles under No-tillage Condition on Senescence Characteristics of Leaves during Late Stages of Rice Development

XIAO Qi-Yin12,REN Wan-Jun1*,YANG Wen-Yu1*,LU Ting-Qi1,LIU Dai-Yin13   

  1. 1 Sichuan Agricultural University, Ya’an 625014, China; 2 Agricultural Sciences Research Institute of Ganzi District, Kangding 626000, China; 3 Sichuan General Popularization Centre of Agricultural Technique, Chengdu 610041, China
  • Received:2009-01-12 Revised:2009-03-20 Published:2009-08-12 Published online:2009-06-11
  • Contact: REN Wang-Jun, E-mail: rwjun@126.com; Tel: 0835-2882612; YANG Wen-Jue, E-mail: wenyu.yang@263.net; Tel: 0835-2882004

PDF

1897

被引次数

12

摘要：

以穗型差异较大的3个杂交稻组合富优I号、D优527、冈优881为材料，研究了不同栽培方式下水稻生育中后期叶片的衰老特性及机制。结果表明，免耕留茬抛秧提高了水稻抽穗后叶片的SPAD值和可溶性蛋白含量，降低了叶片的POD(过氧化物酶)活性，提高了生育后期(抽穗21 d后)叶片的SOD(超氧化物歧化酶)和CAT(过氧化氢酶)活性，3种酶协同作用，降低了活性氧自由基产生速率和MDA(丙二醛)含量，从而延缓了植株衰老。

关键词: 水稻, 衰老, 免耕, 抛秧, 栽培模式

Abstract:

Three panicle types of hybrid rice combinations Fuyou I, D you 527, and Gangyou 881 were used to investigate the effects of different tillage and cultivation methods on the senescence characteristics and mechanism in middle and latter periods of rice. The results showed that, the SPAD value and soluble protein content (SPC) of leaf after heading were increased by the treatment of broadcasting rice seedlings in the field with standing-stubbles under no-tillage condition (BSNT). Activity of peroxidase (POD) was decreased, but activities of superoxide dismutase (SOD) and catalase (CAT) in the late growth duration (21 days after heading) were enhanced by the treatment of BSNT. For BSNT, rate of reactive oxygen free radical (O2?) production speed and malondialdehyde (MDA) content were lower than those for other treatments. Therefore, treatment of BSNT effectively delayed senescence of plant.

Key words: Rice, Senescence, No-tillage, Broadcastiong, Tillage and cultivation method

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