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耕作方式对棉花不同部位果枝叶衰老生理特性的影响
引用本文:韩秋成,张月辰,李存东,孙红春,刘连涛.耕作方式对棉花不同部位果枝叶衰老生理特性的影响[J].棉花学报,2008,20(1):20-33.
作者姓名:韩秋成  张月辰  李存东  孙红春  刘连涛
作者单位:河北农业大学农学院,保定,071001
基金项目:国家自然科学基金 , 河北省自然科学基金 , 教育部高等学校博士学科点专项科研基金
摘    要: 以转Bt基因抗虫棉33B、杂交抗虫棉农大棉6号为材料,以翻耕、旋耕、免耕三种不同耕作方式为处理,对棉株不同部位果枝叶的生理特性进行了研究。结果表明:翻耕、旋耕、免耕处理不同部位果枝叶的叶绿素、蛋白质含量依次降低,MDA含量依次升高,并且这一规律在两品种上的表现一致。表明翻耕利于延缓果枝叶衰老,免耕果枝叶衰老现象最重,旋耕居中。农大棉6号中后期叶绿素和蛋白质的含量高于33B,MDA含量低于33B,说明农大棉6号抗早衰能力强于33B。

关 键 词:棉花  耕作方式  果枝叶  衰老  生理特性  
文章编号:1002-7807(2008)01-0029-05
收稿时间:2007-03-09;
修稿时间:2007年3月9日

Effects of Different Tillage Treatments on the Senescence Physiological Characteris tics of the Fruit Branch Leaves in the Different Positions of Cotton Plant
HAN Qiu-cheng,ZHANG Yue-chen,LI Cun-dong,SUN Hong-chun,LIU Lian-tao.Effects of Different Tillage Treatments on the Senescence Physiological Characteris tics of the Fruit Branch Leaves in the Different Positions of Cotton Plant[J].Cotton Science,2008,20(1):20-33.
Authors:HAN Qiu-cheng  ZHANG Yue-chen  LI Cun-dong  SUN Hong-chun  LIU Lian-tao
Institution:College of Agronomy,Agricultural University of Hebei,Baoding 071001,China
Abstract:]Using insect resistant transgenic Bt varieties (Bacillus thuringiensis),cotton 33B and Nongdamian 6, applying plowing,rotary tillage,direct drilling as treatments,the physiological characteristics of different positions fruit branch leaves were studied. The experiments were carried out at the teaching and experiment station(Baoding,Hebei Province)of Agricultural University of Hebei, in 2005 and 2006. The result showed: 1) The content of chlorophyll and dissoluble protein of different positions fruit branch leaves reduced along a sequence of plowing > rotary tillage> direct drilling; 2) MDA reduced along a sequence of direct drilling> rotary tillage>plowing. The trends are identical in both varieties.It indicates that plowing is propitious to delay the senescence of fruit branch leaf, the senescence phenomenon of direct drilling is severest, that of rotary tillage is in the middle. Compared with 33B,the content of chlorophyll and dissoluble protein of Nongdamian 6 in middle and late phases was more than that of 33B, the content of MDA was less than that of 33B, which indicated that the capability of antisenescence of Nongdamian 6 was stronger than 33B.
Keywords:tillage treatment  fruit branch leaf  senescence  physiological characteristic
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