5DONG He-zhong,Niu Yue-hua,Kong Xiang-qiang,et al.Effects of early-fruit removal on endogenous cytokinins and abscisic acid in relation to leaf senescence in cotton[J].Plant Growth Regulation.2009,59(2):93-101.
6DONG He-zhong,Niu Yue-hua,Li Wei-jiang,et al.Effects of cotton rootstock on endogenous cytokinins and abscisic acid in xylem sap and leaves in relation to leaf senescence[J].Journal of Experimental Botany.2008,59:1295-1304.
7DAI Jian-long,Dong He-zhong.Stem girdling influences concentrations of endogenous cytokinins and abscisic acid in relation to leaf senescence in cotton[J].Acta Physiol Plant,2011,DOI:10.1007/s11738-010-0706-4.
9PLAUT Z,Mayoral M L,Reinhold L.Effect of altered sink:source ratio on photosynthetic metabolism of source leaves[J].Plant Physiology.1987,85(30):786-791.
10HE P,Osaki M,Takebe M,et al.Endogenous hormones and expression of senescence-related genes in different senescent type of maize[J].Journal of Experimental Botany.2005,56:1117-1128.