Abstract

Info

Title:: Effcet of Contents of Endogenous Polymines in Flower Bud Differentiation and Anthesis of Different Apricot (Prunus armeniaca) Varieties

Author(s):: LIU Shaohua1; SI Shouxia1; YANG Tuxi2; SHUAI Huanli2; (1.Henan Forestry Vocational College,Luoyang,Henan 471002；2.School of Forestry,Northwest Agriculture and Forestry University，Yangling,Shanxi 712100)

Abstract:: Three kinds of apricot ‘Yinxiangbai’‘Zaoshuheiyexing’‘Chuanzhihong’ were used as materials,and the differentiation and flowering of apricot buds were observed.Changes of endogenous polyamines (PAs) content during development in bud differentiation′s stage were studied.In order to provide reference for the cultivation management of apricot bumper crop.The results indicated that the contents of endogenous putrecine (Put) and spermidine (Spd) had regular changes,which all showed the trend of increasing after decreasing during flower bud differentiation and flowering.However,spermine (Spm) content was relatively complex.From flower bud differentiation to flower bud dew petal stage,the content of PAs of the three varieties was fluctuated,and there was a peak in the initial flowering period,the contents of PAs in three varieties was 5 747.2 nmol·g-1FW,3 048.0 nmol·g-1FW,2 433.6 nmol·g-1FW,respectively.The content of PAs had a certain effect on the apricot flower bud differentiation and flower formation,and the high level of Put and Spd were conducive to initiation and flowering bud differentiation of apricot.