海南山栏稻品种全生育期抗旱性鉴定与评价  

Identification and Evaluation of Drought Resistance of Shanlan Upland Rice in Full Growth in Hainan

作　　者：徐建欣[1] 杨洁[1] 徐志军 

机构地区：[1]中国热带农业科学院湛江实验站热带旱作农业研究中心,广东湛江524013

出　　处：《热带作物学报》2018年第1期55-60,共6页Chinese Journal of Tropical Crops

基　　金：国家自然科学基金青年基金项目"中国热区抗旱优质陆稻种质资源筛选与遗传多样性研究"(No.31400280);海南省自然科学基金"海南陆稻籼粳分化与抗旱性鉴定综合评价"(No.20153146);中央级公益性科研院所基本科研业务费专项资金(院本级)"热带粮食作物种质资源收集;保存和创新利用团队(骨干岗位)"(No.17CXTD-03);中央级公益性科研院所基本科研业务费专项资金(院本级)"抗旱优质陆稻新品种(组合)选育";(No.1630102016110)

摘　　要：以筛选优质抗旱山栏稻种质资源为研究目的,利用陆稻全生育期综合抗旱性鉴定体系对22个海南山栏稻品种进行抗旱性鉴定与评价。结果表明:海南山栏稻品种不同生育期间所表现出的抗旱能力具有极显著的正相关关系;山栏糯(黄壳)(编号1、4、6、18、22)等5个品种在全生育期均表现出高抗旱能力。此结果为开展山栏稻抗旱新品种选育及优异抗旱基因挖掘等工作提供重要的实验材料,同时说明海南山栏稻群体中蕴含丰富的抗旱遗传种质资源,应加强山栏稻种质资源的收集保护及评价鉴定工作。To seek out Shanlan upland rice resources with excellent drought resistance, we identified and estimated22 Shanlan upland rice variations using comprehensive drought resistance assessment system for the whole growth period of upland rice in this study. The results show that, the drought-resistance ability in Shanlan upland rice in Hainan in different growth stages has a significant positive correlation. Shanlan nuo（yellow seed coat）（No.：1, 4,6, 18, 22） showed high resistance to drought in full growth, which is the excellent parental material for breeding new Shanlan upland rice varieties and gene-explore of drought-resistance. Our results indicated that there are rich genetic resources with drought-resistance in Shanlan upland rice in Hainan, which should be pay attention to resource collection, protection and evaluation in this area.

关 键 词：山栏稻 种质资源 全生育期 抗旱性 鉴定评价 

分 类 号：S511.6[农业科学—作物学]