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Effects of Plant Hormones on Shoot-growth in the Course of Subculture Propagation of Virus-free Pyrus. Spp
JIN Qing1, LIU Xiao-yang2, CAI Yong-ping1*
(1.College of Life Science, Anhui Agriculture University, Hefei 230036, Anhui, China ; 2. Department of Chemistry and Biology, Suzhou College, Suzhou 234000, Anhui, China )
Abstract: Exogenous hormones in medium for propogation of Pyrus.spp plantlet caused endogenous hormones changed and led to subculture plantlet proliferating and growing. Content of ZR increased and there was a significant negative correlation between the rate of IAA/ZR and effective proliferation shoots in BA treated. A significant increase in IAA level when NAA treated, which brought a greater shoot growth. Content of GA1＋3 was found in initial subculture plantlet, which increased in suitable GA3 treated, meanwhile the content of ABA dropped significantly and thus promoting the shoot growth and area of leaves.
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