北方农业学报 ›› 2018, Vol. 46 ›› Issue (5): 1-8.doi: 10.3969/j.issn.2096-1197.2018.05.01

• 著者文摘 •    下一篇

水稻种质资源耐旱性鉴定与评价

王宝祥[1,2];余剑锋[3,4];徐波[1];刘艳[1];邢运高[1];孙治广[1];迟铭[1];石时来[3];边建民[3];徐大勇[1]   

  1. [1]徐淮地区连云港农业科学研究所,江苏连云港222006;[2]江苏省现代作物生产协同创新中心,江苏连云港222006;[3]作物生理生态与遗传育种教育部重点实验室,江西南昌330045;[4]江西农业大学,江西南昌330045
  • 收稿日期:2018-07-26 出版日期:2018-08-19 发布日期:2019-08-19
  • 作者简介:王宝祥(1981-),男,副研究员,博士,主要从事水稻遗传育种的研究工作。;通讯作者:徐大勇(1964-),男,研究员,博士,主要从事农作物新品种选育和推广工作。
  • 基金资助:
    国家水稻产业技术体系项目(CARS-01-61);江苏省农业科技支撑计划项目(BE2017323);江西省教育厅科学技术研究项目(GJJ170241);连云港市财政专项支持项目

Identification and evaluation of drought tolerance for rice germplasm resources

WANG Baoxiang[1];YU Jialdeng[1];XU Bo[1];LIU Yan[1];XING Yungao[1];SUN Zhiguang[1];CHIMing[1];SHI Shilai[1];BIAN Jianmin[1];XU Dayong[1]   

  1. [1]Lianyungang Agricultural Science Research Institute,Xuhuai District,Lianyungang 222006,China;[2]Jiangsu Province Modem Crop Production Collaborative Innovation Center,Lianyungang 222006,China;[3]Key Laboratory of Crop Physiology,Ecology-and Genetic Breeding,Ministry of Education,Nanchang 330045,China;[4]Jiangxi Agricultural University,Nanchang 330045,China
  • Received:2018-07-26 Online:2018-08-19 Published:2019-08-19

摘要: 为了发掘优良的耐旱水稻资源,试验以91份国内外水稻资源为材料,采用水作和旱作两种栽培模式考察不同水稻资源抽穗期和成熟期耐旱性差异。结果显示:干旱胁迫下水稻各产量构成因子均有不同程度下降,其中有效德数下降最显著,表明有效穗数对干旱胁迫的响应比较敏感。根据各项指标胁迫系数的隶属函数值将供试品种分为3类:强耐旱、耐旱和敏感。共筛选出强耐旱品种17份、耐旱品种69份、敏感品种5份,这些耐旱资源为培育耐旱水稻品种提供了优良的材料。

关键词: 水稻;耐旱性;评价

Abstract: In order to explore the excellent drought-tolerant rice resources, 91 domestic and foreign rice cultivars were examined, and ll-e differences in drought tolerance between heading and mamrily of different rice varielies were invesligaled by using two cultivation modes: wee and dry farming. The results showed that the yield components of rice decreased under drought stress, and the number of eftective panicles decreased most significantly, indicating that the effective panicle number was sensitive to drought stress. According to the membership fhnction values of the stress coefficients of each index, the tested varieties were divided into three categories: strong drought tolerance, drought tolerance and drought sensitivity. A total of 17 strong drought-tolerant varieties, 69 drought-tolerant varieties and 5 sensitive varieties were screened. These drought-tolerant resources should provide excellent materials for breeding drought-tolerant rice varieties.

Key words: Drought tolerance;Evaluation

中图分类号: 

  • S511