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Reduced abscisic acid content is responsible for enhanced sucrose accumulation by potassium nutrition in vegetable soybean seeds
B. J. Tu, C. K. Liu, B. W. Tian, Q. Y. Zhang, X. B. Liu and S. J. Herbert; Zhang QY(张秋英)
2017
Source PublicationJournal of Plant Research
Volume130Issue:3Pages:551-558
AbstractIn order to understand the physiological mechanism of potassium (K) application in enhancing sugar content of vegetable soybean seeds, pot experiments were conducted in 2014 and 2015 with two vegetable soybean (Glycine max L. Merr.) cultivars (c.v. Zhongkemaodou 1 and c.v. 121) under normal rate of nitrogen and phosphorus application. Three potassium (K) fertilization treatments were imposed: No K application (K0), 120 kg K2SO4 ha(-1) at seeding (K1), and 120 kg K2SO4 ha(-1) at seedling + 1% K2SO4 foliar application at flowering (K2). Contents of indole-3-acetic acid (IAA), gibberellins (GA), cytokinins (ZR) and abscisic acid (ABA) in seeds were determined from 4 to 8 weeks after flowering. K fertilization increased the contents of IAA, GA, ZR, soluble sugar, sucrose and fresh pod yield, but reduced ABA content consistently. When the contents of soluble sugar and sucrose reached the highest level at 7 weeks after flowering for the 2 cultivars, the contents of IAAaEuroGAaEuroZR all reached the lowest level in general. The content of ABA in seed was negatively correlated with the sucrose content (P < 0.01, r = -0.749**, -0.768** in 2014 and -0.535**, -0.791** in 2015 for c.v.121 and c.v. Zhongkemaodou 1 respectively). The changes in ratio of the ABA to (IAA + GA + ZR) from 4 to 8 weeks after flowering affected by K application were coincident to the changes of sucrose accumulation. The reduced ratio of ABA/(IAA + GA + ZR) affected by K nutrition particularly reduced abscisic acid content plays a critical role in enhancing sucrose content, which might be a partial mechanism involved in K nutrition to improve the quality of vegetable soybean.
DOI10.1007/s10265-017-0912-x
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iga.ac.cn/handle/131322/7629
Collection湿地与全球变化学科组
Corresponding AuthorZhang QY(张秋英)
Recommended Citation
GB/T 7714
B. J. Tu, C. K. Liu, B. W. Tian, Q. Y. Zhang, X. B. Liu and S. J. Herbert,Zhang QY. Reduced abscisic acid content is responsible for enhanced sucrose accumulation by potassium nutrition in vegetable soybean seeds[J]. Journal of Plant Research,2017,130(3):551-558.
APA B. J. Tu, C. K. Liu, B. W. Tian, Q. Y. Zhang, X. B. Liu and S. J. Herbert,&张秋英.(2017).Reduced abscisic acid content is responsible for enhanced sucrose accumulation by potassium nutrition in vegetable soybean seeds.Journal of Plant Research,130(3),551-558.
MLA B. J. Tu, C. K. Liu, B. W. Tian, Q. Y. Zhang, X. B. Liu and S. J. Herbert,et al."Reduced abscisic acid content is responsible for enhanced sucrose accumulation by potassium nutrition in vegetable soybean seeds".Journal of Plant Research 130.3(2017):551-558.
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