成都市两系杂交水稻制种气候适宜性区划

doi:10.11924/j.issn.1000-6850.casb17090115

中国农学通报 ›› 2019, Vol. 35 ›› Issue (1): 95-103.doi: 10.11924/j.issn.1000-6850.casb17090115

所属专题：水稻；农业气象

• 资源环境生态土壤气象 • 上一篇下一篇

成都市两系杂交水稻制种气候适宜性区划

王芬¹, 亢强¹, 李辉², 左钦月²

1.成都市双流区气象局;2.中国科学院成都生物研究所

收稿日期:2017-09-21 修回日期:2018-11-30 接受日期:2018-05-07 出版日期:2019-01-02 发布日期:2019-01-02
通讯作者: 王芬
基金资助:
四川省气象局科学技术研究开发课题（川气课题2015-开发-21）；中国科学院“西部之光”项目“四川两系杂交水稻制种技术及气象决策方案研究”(Y5C4201)；四川省科技厅软科学研究项目“四川两系杂交水稻产业发展战略决策研究”(17ZR0251)；国家自然科学基金项目“水稻褐飞虱广谱抗性基因Bph29(t)的克隆与分子育种利用研究”(31501379)；中国科学院东南亚生物多样性研究中心青年人才培育计划项目“中缅抗褐飞虱水稻新材料创制与分子育种利用合作研究”(Y7C4081100)；区域性国际合作基金项目“缅甸抗逆低镉水稻种质资源发掘、机制解析及杂交水稻技术试验示范”(Y6C4031100)。

The Climatic Suitability Regionalization of Two-line Hybrid Rice Seed Production in ChengduSuitability Regionalization of Two-line Hybrid Rice Seed Production in Chengdu

Received:2017-09-21 Revised:2018-11-30 Accepted:2018-05-07 Online:2019-01-02 Published:2019-01-02

摘要/Abstract

摘要： 为解决成都市两系杂交水稻就地制种难题，运用基于风险的气象诊断方法，笔者分析成都13 个区（市）县制种的3 个关键时期（两系不育系育性敏感期，亲本抽穗扬花期和种子成熟收获期）的安全性和适宜性，得到其两系杂交水稻制种适宜区域与时段。结果表明，多数分析时间段的抽穗扬花综合风险指数小于4.0，时长为44~95 天，为两系杂交水稻制种抽穗扬花安全期时段的选择提供了充裕的区间，因此制种基地适宜性主要由育性敏感期决定。在22.5℃阈值条件下，两系水稻最适制种区为金堂、龙泉驿、邛崃、蒲江、双流和新津；在23℃阈值条件下，两系水稻适宜制种区为新津、金堂、新都、大邑和双流；在23.5℃和24.0℃温度阈值条件下，成都适宜开展两系水稻制种的地区极少。如果在成都开展两系杂交水稻制种，应尽量选用不育起点温度低于23.0℃，并且育性敏感期时段较短的两系不育系，以减少制种纯度风险。

关键词: 马尾松, 马尾松, 采脂林经营, 研究综述

Abstract: The paper aims to solve the problem of two-line hybrid rice seed in situ production in Chengdu. Using meteorological diagnosis method based on risk analysis, the authors analyzed the security and suitability in the 3 key periods of two-line hybrid rice seed production (thermo-sensitive period of the two-line male sterile lines, heading and flowering period of the parents, seeds maturation and harvesting period) of 13 districts, cities or counties in Chengdu, and got the suitable areas and time ranges for the two-line hybrid rice seed production. The results showed that: the comprehensive risk index of heading and flowering in most of the time ranges analyzed was less than 4.0, the time intervals were 44-95 days, which provided sufficient time intervals for the selection of safe time ranges during heading and flowering period for two-line hybrid rice seed production. So, the suitability of the seed production base was mainly determined by the thermo-sensitive period. At the temperature threshold of 22.5℃, the most suitable seed production areas for two-line hybrid rice were Jintang, Longquanyi, Qionglai, Pujiang, Shuangliu and Xinjin; at the temperature threshold of 23℃, the suitable areas were Xinjin, Jintang, Xindu, Dayi and Shuangliu; at the temperature threshold of 23.5℃ and 24.0℃, the areas suitable were very rare in Chengdu. If seed production of two-line hybrid rice is conducted in Chengdu, to lower the seed purity risk, the producer should choose those two-line male sterile lines with the critical sterility inducing temperature (CSIT) lower than 23℃ and relatively short thermo-sensitive period.

中图分类号:

王芬,亢强,李辉,左钦月. 成都市两系杂交水稻制种气候适宜性区划[J]. 中国农学通报, 2019, 35(1): 95-103.

王芬,亢强, and . The Climatic Suitability Regionalization of Two-line Hybrid Rice Seed Production in ChengduSuitability Regionalization of Two-line Hybrid Rice Seed Production in Chengdu[J]. Chinese Agricultural Science Bulletin, 2019, 35(1): 95-103.

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成都市两系杂交水稻制种气候适宜性区划

The Climatic Suitability Regionalization of Two-line Hybrid Rice Seed Production in ChengduSuitability Regionalization of Two-line Hybrid Rice Seed Production in Chengdu

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