欢迎访问《中国农学通报》,

中国农学通报 ›› 2020, Vol. 36 ›› Issue (2): 1-5.doi: 10.11924/j.issn.1000-6850.casb18080094

所属专题: 生物技术 水稻

• 农学·农业基础科学 •    下一篇

不同水稻品种种子萌发生理特性差异研究

倪万潮, 束红梅(), 郭书巧, 蒋璐, 何晓兰, 崔晓霞, 巩元勇   

  1. 江苏省农业科学院经济作物研究所,南京 210014
  • 收稿日期:2018-08-24 修回日期:2019-05-31 出版日期:2020-01-15 发布日期:2020-04-30
  • 通讯作者: 束红梅
  • 作者简介:倪万潮,男,1962年出生,江苏盱眙人,研究员,硕士,主要从事农业生物技术研究。通信地址:210014 江苏省南京市玄武区钟灵街50号 江苏省农业科学院经济作物研究所,E-mail:nwchao2002@aliyun.com
  • 基金资助:
    农业部国际交流与合作项目“中国-美国作物种子生物学联合实验室”(08162130114246008)

Seed Germination of Rice Cultivars: Differences in Physiological Characteristics

Ni Wanchao, Shu Hongmei(), Guo Shuqiao, Jiang Lu, He Xiaolan, Cui Xiaoxia, Gong Yuanyong   

  1. Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014
  • Received:2018-08-24 Revised:2019-05-31 Online:2020-01-15 Published:2020-04-30
  • Contact: Shu Hongmei

摘要:

为研究不同水稻品种的种子萌发生理特性,根据24个水稻品种的萌发情况,筛选萌发速度差异的水稻品种5个,分别代表萌发速度快、中、慢3种类型。种子萌发生理特性结果表明,萌发期内发芽速度存在差异的水稻品种,其淀粉酶活性、可溶性糖含量均存在差异。萌发速度快的水稻品种‘盐两优888’和‘盐恢888’,其α-淀粉酶活性、β-淀粉酶活性高,有助于种子内淀粉的分解,同时这2个品种在萌发过程中可溶性糖含量高,为种子萌发提供了能量和物质。反之,萌发速度慢的水稻品种,种子淀粉酶活性低、可溶性糖含量低。说明水稻种子中淀粉酶的活性、可溶性糖含量与种子萌发速度呈正相关。

关键词: 水稻, 不同品种, 种子萌发, 生理特性, ‘盐两优888’, ‘盐恢888’

Abstract:

To study the physiological characteristics of seed germination of different rice cultivars, we selected 5 cultivars from 24 based on their seed germination rate, which represented 3 types of quick, medium and slow germination. The physiological characteristics of seed germination showed that: there were some differences in amylase activity and soluble sugar content among the cultivars with different germination rates; the cultivars (‘Yanliangyou 888’ and ‘Yanhui 888’) with quick germination rate had higher α-amylase activity and β-amylase activity, which were helpful to decompose starch, and had higher soluble sugar content during germination period, which could offer the energy and substances for seed germination; on the contrary, the cultivars with slow germination rate had lower amylase activity and soluble sugar content of seed. This study indicates that the amylase activity and soluble sugar content of rice seed have a positive correlation with the germination rate.

Key words: rice, different cultivars, seed germination, physiological characteristics, ‘Yanliangyou 888’, ‘Yanhui 888’

中图分类号: