Role of β-amylase in Seed Development and Relation to Pre-harvest Sprouting in Spring Soybean(PDF)
《大豆科学》[ISSN:1000-9841/CN:23-1227/S]
- Issue:
- 2013年06期
- Page:
- 768-772
- Research Field:
- Publishing date:
Info
- Title:
- Role of β-amylase in Seed Development and Relation to Pre-harvest Sprouting in Spring Soybean
- Author(s):
- -
- ?（1.College of Agriculture and Biotechnology,Zhejiang University,Hangzhou 310058,China；2.WuxiBioAgriculture Research Center of Zhejiang University,Wuxi 214104,China；3.Research Center for EcoEnvironmental Sciences,Chinese Scientific Academy of Sciences,Beijing 100086,China）
- Keywords:
- Spring soybean; Seed development; Soybean β-amylase; Precocious germination
- PACS:
- -
- DOI:
- 10.11861/j.issn.1000-9841.2013.06.0768
- Abstract:
- ?The objectives were to research development characteristics of seven spring soybean varieties,and the role of β-amylase during seed development,as well as the relationship between precocious germination and β-amylase activity.The results showed that the germination index of soybean seeds increased rapidly from full seedfilling to beginning maturity,and maximized at full maturity.The germination ability significant positively correlat with seeds dry weight.β-amylase activity of soybean increased with seed development and dry matter accumulation,but decreased with seed germination and composition consuming.β-amylase activity also decreased after precocious germination,the correlation between soybean β-amylase activity and germination percentage and index was positive in varieties tolerant to precocious germination,such as Zhechun 3,Ji23 and Ji24,but negative in the susceptible ones,such as 95-1,9701,Huachun 18 and Aijiaozao.The four varieties susceptible to precocious germination could be grouped into two categories,one included 95-1 and 9701,the other included Hechun 18 and Aijiaozao.Precocious germination of the former and the latter varieties occurred during full seedfilling and beginning maturity,and the germination percentage was higher than 60% and 80%,respectively.After beginning maturity,the β-amylase activity of soybean would decrease in the precocious germinated seeds.The study also suggested that precocious germinated seed caused the decrease of dry weight and germination percentage of harvesting seeds.
Last Update: 2014-02-28