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Potassium Application Affects Key Enzyme Activities of Sucrose Metabolism during Seed Filling in Vegetable Soybean
C. K. Liu, B. J. Tu, Y. S. Li, B. W. Tian, Q. Y. Zhang, X. B. Liu and S. J. Herbert; Zhang QY(张秋英)
2017
发表期刊Crop Science
卷号57期号:5页码:2707-2717
摘要Pot experiments were conducted in 2014 and 2015 with two vegetable soybean [Glycine max (L.) Merr.] cultivars ('Zhongkemaodou 1' and '121') under normal rates of nitrogen and phosphorus application with three potassium (K) fertilization treatments: no K application (K0), 120 kg K2SO4 ha(-1) at seeding (K1), and 120 kg K2SO4 ha(-1) at seeding + 1% K2SO4 foliar application at flowering (K2). Potassium application significantly increased seed sucrose concentration, and the highest seed sucrose concentrations were uniformly observed in the treatment of foliar K application after flowering. At 7 wk after flowering, the highest stage of seed sucrose concentration, K1 and K2 treatments increased sucrose concentration by 19.8 to 44% and 29.1 to 86.4% for Zhongkemaodou 1, and 7.2 to 42.1% and 26.2 to 63.8% for 121, respectively. Changes of net activities of sucrose-metabolizing enzymes in seed paralleled the trend of sucrose accumulation. Potassium application increased the activities of sucrose phosphate synthase and sucrose synthase with increased sucrose synthesis but reduced the activity of sucrose synthase with increased sucrose decomposition. Potassium application also reduced the activities of acid invertase and neutral invertase, especially around seed ripening. Potassium fertilization enhanced seed net activities of key enzymes in sucrose metabolism and subsequently induced the increase in sucrose concentration of vegetable soybean.
DOI10.2135/cropsci2016.08.0648
WOS记录号WOS:000410728900039
引用统计
文献类型期刊论文
条目标识符http://ir.iga.ac.cn/handle/131322/7580
专题湿地与全球变化学科组
通讯作者Zhang QY(张秋英)
推荐引用方式
GB/T 7714
C. K. Liu, B. J. Tu, Y. S. Li, B. W. Tian, Q. Y. Zhang, X. B. Liu and S. J. Herbert,Zhang QY. Potassium Application Affects Key Enzyme Activities of Sucrose Metabolism during Seed Filling in Vegetable Soybean[J]. Crop Science,2017,57(5):2707-2717.
APA C. K. Liu, B. J. Tu, Y. S. Li, B. W. Tian, Q. Y. Zhang, X. B. Liu and S. J. Herbert,&张秋英.(2017).Potassium Application Affects Key Enzyme Activities of Sucrose Metabolism during Seed Filling in Vegetable Soybean.Crop Science,57(5),2707-2717.
MLA C. K. Liu, B. J. Tu, Y. S. Li, B. W. Tian, Q. Y. Zhang, X. B. Liu and S. J. Herbert,et al."Potassium Application Affects Key Enzyme Activities of Sucrose Metabolism during Seed Filling in Vegetable Soybean".Crop Science 57.5(2017):2707-2717.
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