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中国农学通报 ›› 2025, Vol. 41 ›› Issue (11): 8-15.doi: 10.11924/j.issn.1000-6850.casb2024-0416

• 农学·农业基础科学 • 上一篇    下一篇

广东丝苗米品种萌发幼苗期及苗期的耐盐性评价

梁嘉燕(), 孔雷蕾, 胡晓丹, 杨旭健, 杨武, 白嵩()   

  1. 广东省农业科学院水稻研究所/农业农村部华南优质稻遗传育种实验室(部省共建)/广东省水稻育种新技术重点实验室/广东省水稻工程实验室,广州 510640
  • 收稿日期:2024-06-27 修回日期:2024-09-15 出版日期:2025-04-15 发布日期:2025-04-11
  • 通讯作者:
    白嵩,男,1970年出生,辽宁西丰人,研究员,博士,研究方向:水稻生理生态和稻米品质研究、稻产品研发。通信地址:510640 广东省广州市金颖东一街3号 广东省农业科学院水稻研究所,Tel:020-87599457,E-mail:
  • 作者简介:

    梁嘉燕,女,1988年出生,广东佛山人,助理研究员,博士,研究方向:稻米品质研究。通信地址:510640 广东省广州市金颖东一街3号 广东省农业科学院水稻研究所,Tel:020-87599457,E-mail:

  • 基金资助:
    广东省农业科学院“特色粮油多维品质数据库构建与应用及精深加工研究”(XTXM202205); 广东省农业科学院“优秀博士项目”(R2021YJ-YB3001); 广东省农业科学院水稻研究所“丝苗米后熟变化与品质形成的研究”(2021YG09); “广东省水稻育种新技术重点实验室”(2023B1212060042)

Evaluation of Salt Tolerance During Germination and Seedling Stage of Guangdong Simiao Rice Varieties

LIANG Jiayan(), KONG Leilei, HU Xiaodan, YANG Xujian, YANG Wu, BAI Song()   

  1. Rice Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs/ Guangdong Key Laboratory of New Technology in Rice Breeding / Guangdong Rice Engineering Laboratory, Guangzhou 510640
  • Received:2024-06-27 Revised:2024-09-15 Published:2025-04-15 Online:2025-04-11

摘要:

本研究旨在评价广东丝苗米品种在萌发期和苗期的耐盐性,为丝苗米的品种选择和生产提供科学依据和理论指导。选取15个广东丝苗米品种为研究对象,通过盐胁迫处理,观察这些品种在不同生长阶段的表现,具体评估指标包括发芽率、苗期存活率等。研究结果表明,盐胁迫对丝苗米品种的种子发芽率和发芽势具有显著的抑制效应。在萌发幼苗期,杂交稻相较于常规稻表现出更强的耐受性,其中‘青香优19香’和‘软华优金丝’尤为突出,表现出较高的耐盐性。在苗期,‘香秀占’、‘莉香占’、‘南晶香占’、‘恒丰优油香’和‘耕香优荔丝苗’等品种则显示出较高的耐盐性。鉴于不同品种间耐盐性存在显著差异,建议在综合考虑其他品种需求因素后,优先选用耐盐性较强的品种或杂交品种,在有咸潮侵扰历史的丝苗米产区,推荐选用杂交品种。针对不同品种,在面临盐胁迫时的应对措施要有所区别,以增强产量的稳定性。

关键词: 广东丝苗米品种, 盐胁迫, 萌发期, 苗期, 发芽率, 苗期存活率, 杂交稻, 常规稻

Abstract:

This study aims to evaluate the salt tolerance of Guangdong Simiao rice varieties during the germination and seedling stages, providing a scientific basis for variety selection and theoretical guidance for Simiao rice production. Fifteen Guangdong Simiao rice varieties were selected as research objects, and their performance at different growth stages was observed through salt stress treatment, with specific evaluation indicators including germination rate and seedling survival rate. The research results show that salt stress significantly inhibits the seed germination rate and germination potential of Simiao rice varieties. Notably, during the germination and seedling stages, hybrid rice shows stronger tolerance compared to conventional rice, especially 'Qingxiangyou 19 xiang' and 'Ruanhuayoujinsi', which exhibit higher salt tolerance. In the seedling stage, varieties such as 'Xiangxiuzhan', 'Lixiangzhan', 'Nanjingxiangzhan', 'Hengfengyouyouxiang', and 'Gengxiangyoulisimiao' also show higher salt tolerance. Given the significant differences in salt tolerance among different varieties, it is recommended to give priority to varieties or hybrids with stronger salt tolerance after comprehensively considering other variety demand factors. In addition, different measures should be adopted for different varieties when facing salt stress to improve yield stability.

Key words: Guangdong Simiao rice varieties, salt stress, germination period, seedling stage, germination rate, seedling survival rate, hybrid rice varieties, conventional rice varieties