| 贵州稻种禾类种质资源耐冷性和抗旱性鉴定与评价利用 |
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| 引用本文： | 陈惠查,张再兴,阮仁超,杨玉顺,金桃叶,游俊梅.贵州稻种禾类种质资源耐冷性和抗旱性鉴定与评价利用[J].贵州农业科学,1999,27(6):38-40. |
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| 作者姓名： | 陈惠查 张再兴 阮仁超 杨玉顺 金桃叶 游俊梅 |
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| 作者单位： | 贵州省农业科学院水稻研究所,贵阳,550006 |
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| 摘 要： | 分别对２８６份和２３２份贵州稀有稻种禾类种质资源的芽期耐冷性和苗期抗旱性进行鉴定研究。结果表明，禾类资源中存在丰富的耐冷，抗旱基因。耐冷性鉴定表现中抗（５级）以上品种１７９份，占６２．５８％，其中１组高抗品种４６份，占１６．０８％；抗旱性鉴定表现强（１级）的品种有３５份，占１５．０９％，５级中抗以上品种１０４份，占鉴定数的４４．８２％，筛选出耐冷抗旱的双抗肿质有９份。并就禾类资源的耐、抗时时 等优
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| 关 键 词： | 贵州禾 种质资源 耐冷性 抗旱性 |
| 修稿时间： | 1999-08-06 |
Evaluation and Identification of Tolerance to Cold and Resistance to Drought on Guizhou HE(Oryza sativa) Germplasm Resources |
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| CHEN Hui-cha,ZHANG Zai-xing,RUAN Ren-chao,YANG Yu-shun,JIN Tao-ye,YOU Jun-mei.Evaluation and Identification of Tolerance to Cold and Resistance to Drought on Guizhou HE(Oryza sativa) Germplasm Resources[J].Guizhou Agricultural Sciences,1999,27(6):38-40. |
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| Authors: | CHEN Hui-cha ZHANG Zai-xing RUAN Ren-chao YANG Yu-shun JIN Tao-ye YOU Jun-mei |
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| Abstract: | Guizhou
HE(Oryza sativa )in foggy and humid mountainous district of southeastern Guizhou, is
formed with a course of long evolution and artificial selection, and is regarded as a kind
of special ecotype of rare rice germplasm resources in China. 286 local varieties of
Guizhou HE was conducted to study tolerance to cold at bud stage and 232 varieties for
studying resistance to drought at seedling stage. The results showed that there were 179
ones expressing MR to cold, including 46 (16.8%) HR and 62(21.68%) R, 35 varieties of them
were resistant to drought at seedling stage; and 9 varieties of Guizhou HE showed both
resistance to cold and drought. How to utilize these characteristics in rice breeding was
discussed. |
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