The physiological and biochemical responses of sweet osmanthusseeds to gibberellic acid treatment

doi:10.3969/j.jssn.1000-2006.2012.01.013

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2012, Vol. 36 ›› Issue (01): 63-67.doi: 10.3969/j.jssn.1000-2006.2012.01.013

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The physiological and biochemical responses of sweet osmanthusseeds to gibberellic acid treatment

YANG Xiulian，WANG Lianggui

College of Landscape Architecture， Nanjing Forestry University,Nanjing 210037, China

Online:2012-01-30 Published:2012-01-30

Abstract

Abstract: In this paper, the changes of endogenous hormones and nutrient substances of ‘Zibing ziyin’ seeds were studied by low temperature stratification after gibberellic acid treatment. The results showed that the abscisic acid (ABA) reduced gradually by the stratification time increased, and it decreased 51.6 % compared to CK 45 days after treatment, but the gibberellic acid (GA), indole3acetic acid (IAA) and cytokinin (ZR) increased to 76.66 %，8834 %，80.9 % respectively 45 days after. The ratios of GA/ABA, IAA/ABA, ZR/ABA and (GA+IAA) /ABA first increased then decreased. The experimental results showed that ABA restrained from germination. By contrast, GA promotes seeds germination, IAA and ZR were also found positive in breaking the seed dormancy. During cold stratification treatment, contents of soluble sugar and starch decreased gradually; contents of soluble protein displayed a “updownupdown”change.

CLC Number:

S722

YANG Xiulian，WANG Lianggui. The physiological and biochemical responses of sweet osmanthusseeds to gibberellic acid treatment[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2012, 36(01): 63-67.

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The physiological and biochemical responses of sweet osmanthusseeds to gibberellic acid treatment

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