稻种资源苗期田间抗旱性鉴定技术规程  

Standard Technical Regulations for Evaluating Drought Resistance of Rice Germplasm in the Field at Seedling Stage

作　　者：刘伟[1,2] 张亚格[1,3] 魏昭然 周畋波 张洪亮 孙兴明[1] 王效宁 李自超[1,2,3] LIU Wei;ZHANG Yage;WEI Zhaoran;ZHOU Tianbo;ZHANG Hongliang;SUN Xingming;WANG Xiaoning;LI Zichao(College of Agronomy and Biotechnology,China Agricultural University,Beijing 100193;Sanya Institute of China Agricultural University,Sanya 572025,Hainan;Sanya Institute,Hainan Academy of Agricultural Sciences,Sanya 572025)

机构地区：[1]中国农业大学农学院,北京100193 [2]中国农业大学三亚研究院,海南三亚572025 [3]海南省农业科学院三亚研究院,三亚572025

出　　处：《植物遗传资源学报》2024年第11期2005-2008,共4页Journal of Plant Genetic Resources

基　　金：三亚崖州湾科技城科技专项资助(SCKJ-JYRC-2022-02);海南省种业实验室与中国种子集团有限公司联合项目(B23YQ1517,B23CQ15HP);海南省农业科学院引进人才科研启动费项目(HAAS2023RCQD15);海南省博士后研究项目(313570);海南省科技人才创新项目(KJRC2023B23);三亚市科技创新专项项目(2022KJCX10)。

摘　　要：作物田间抗旱性是一个复杂的数量性状,准确的表型鉴定是数量性状基因发掘和遗传基础研究的关键。而稻种资源田间抗旱性表型的准确鉴定一直是该领域的卡脖子难点,也是抗旱育种工作者所关注的核心技术步骤。本文在前期系统的抗旱性研究基础上,通过多年对田间抗旱性鉴定体系的探索优化,总结制定了包括一般要求、整地、备种、播种、施肥、水分管理、病虫草害防治、苗期群体抗旱性调查与评价等全过程的操作规范和基本要求,为作物种质资源苗期田间抗旱性鉴定提供技术参考。该技术规程适用于海南省三亚市每年冬季(11月中旬-次年4月上旬)的苗期田间抗旱性鉴定。Drought resistance in the field is a complex quantitative trait.Accurate phenotypic identification is critical to discover the genes and explore genetic basis for quantitative trait.However,the accurate identification of drought resistance for rice germplasm in the field has consistently been a bottleneck for researcher and a core technical for drought resistance breeders.On the basis of systematic drought resistance research in the previous work,we also have spent many years exploring and optimizing the conditions for assessing drought resistance in the field.The standard technical regulations for evaluating drought resistance in the field were summarized and normalized.It included general requirements,land preparation before sowing,seed preparation,sowing,fertilization,water management,prevention of diseases,pests and weeds,and evaluation of drought resistance in the field at seedling stage.The regulations provided technical reference for identification of drought resistance in the field at seedling stage in rice or other crops.It was suitable for the resistance evaluation of rice to drought during the winter in Sanya of Hainan province(from mid-November to early April of the next year).

关 键 词：稻种资源 苗期 田间抗旱性 鉴定 

分 类 号：S511[农业科学—作物学]