摘要
【目的】本实验为了明确低纬高原梯田两系杂交稻适宜的制种区域和播种期,为该区域两系杂交稻安全制种生产提供有价值的数据支持。【方法】选择典型低纬高原梯田条件的云南水富县3个不同海拔试点,8个播期研究了4个籼稻两用核不育系和3个粳稻两用核不育系在各试点的育性表达规律,并进行了不育系育性表达和稳定性分析。【结果】各品种套袋自交不育率在品种间、海拔间、播期间均表现出极显著差异。【结论】低纬高原两系杂交稻适宜的制种区域控制在海拔500 m以下,播期应安排在5月14日之前。
【Objective】This study was to investigate optimum seed production areas and sowing dates at the low latitude plateau regions in Yunnan province for safe two-line hybrid seed production.【Method】The fertility patterns of four indica and three japonica Photoperiod-Thermo-sensitive Genic Male Sterile lines(PTGMS)were evaluated in three different altitude with eight different sowing dates at the low latitude plateau regions of Shuifu county,Yunnan province.Fertility expression and stability of each PTGMS rice under controlled different temperature conditions were also analyzed.【Result】The result showed that the average sterile rate of self-crossing sterility by hand bagging was significantly different among varieties,altitudes and sowing dates.【Conclusion】The suitable hybrid rice seed production locations for Two-line hybrid rice in low latitude plateau should be controlled below 500 m and the seeding date should be arranged before May 14th.
作者
涂建
陈忆昆
董阳均
刘晓利
黄平
辜琼瑶
李华慧
卢义宣
杨久
张云
张笑
罗君尧
奎丽梅
TU Jian;CHEN Yi-kun;DONG Yang-jun;LIU Xiao-li;HUANG Ping;GU Qiong-yao;LI Hua-hui;LU Yi-xuan;YANG Jiu;ZHANG Yun;ZHANG Xiao;LUO Jun-yao;KUI Li-mei(Institute of Food Crop,Yunnan Academy of Agriculture Science,Yunnan Kunming 650205,China;Yunnan Jinrui Seed Industry Co.Ltd.,Yunnan Kunming 650217,China;Shuifu Seed Station,Yunnan Shuifu 657800,China)
出处
《西南农业学报》
CSCD
北大核心
2018年第12期2466-2471,共6页
Southwest China Journal of Agricultural Sciences
基金
国家重点研发计划(2017YFD0100206)
云南省重大科技专项"生物种业和农产品精深加工"(2018ZG008)
现代农业产业技术体系建设专项资金(CARS-01-81)
云南省科技计划项目(2015BB021)
关键词
低纬高原
梯田
两系杂交稻
制种
适应性
Low latitude plateau
Terraces
Two-line hybrid rice
Seed production
Adaptability