| 玉米种质资源抗腐霉茎腐病鉴定 |
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| 引用本文： | 杨洋,陈国康,郭成,张炜,孙素丽,王晓鸣,朱振东,段灿星. 玉米种质资源抗腐霉茎腐病鉴定[J]. 作物学报, 2018, 44(8): 1256-1260. DOI: 10.3724/SP.J.1006.2018.01256 |
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| 作者姓名： | 杨洋 陈国康 郭成 张炜 孙素丽 王晓鸣 朱振东 段灿星 |
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| 作者单位： | 1.西南大学植物保护学院, 重庆4007152 中国农业科学院作物科学研究所 / 国家农作物基因资源与基因改良重大科学工程, 北京 1000813 甘肃省农业科学院植物保护研究所, 甘肃兰州730070 |
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| 基金项目： | the National Key Research and Development Program of China(2016YFD0100103);the Special Fund for Protection of Crop Germplasm Resources(2017NWB036-12);the Agricultural Science and Technology Innovation Program of the Chinese Academy of Agricultural Sciences. |
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| 摘 要： | 腐霉茎腐病(Pythium stalk rot)是玉米生产上的重要病害。2013—2016年, 对1213份玉米种质资源进行了抗肿囊腐霉(Pythium inflatum)茎腐病的鉴定与评价。在1213份玉米种质中, 鉴定出高抗肿囊腐霉茎腐病的材料207份, 占鉴定总数的17.1%, 主要来自中国的内蒙古、河北、山西及美国等地。抗性材料159份, 占鉴定材料数的13.1%, 主要由源自中国的内蒙古、云南、山西和美国等地的种质构成。由此可见, 玉米种质中存在较为丰富的抗腐霉茎腐病资源, 且抗性水平与地理来源有关。自交系和农家种中对肿囊腐霉茎腐病表现高抗的种质分别占鉴定种质总数的18.7%和10.6%, 表明自交系中高抗肿囊腐霉茎腐病资源较农家种更为丰富。
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| 关 键 词： | 玉米 肿囊腐霉 茎腐病 抗性鉴定 |
| 收稿时间： | 2018-01-05 |
Identification of Maize Germplasm for Resistance to Pythium Stalk Rot |
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| Yang YANG,Guo-Kang CHEN,Cheng GUO,Wei ZHANG,Su-Li SUN,Xiao-Ming WANG,Zhen-Dong ZHU,Can-Xing DUAN. Identification of Maize Germplasm for Resistance to Pythium Stalk Rot[J]. Acta Agronomica Sinica, 2018, 44(8): 1256-1260. DOI: 10.3724/SP.J.1006.2018.01256 |
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| Authors: | Yang YANG Guo-Kang CHEN Cheng GUO Wei ZHANG Su-Li SUN Xiao-Ming WANG Zhen-Dong ZHU Can-Xing DUAN |
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| Affiliation: | 1.College of Plant Protection, Southwest University, Chongqing 400715, China2 Institute of Crop Sciences, Chinese Academy of Agricultural Sciences / National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing 100081, China3 Institute of Plant Protection, Gansu Academy of Agricultural Sciences, Lanzhou 730070, Gansu, China |
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| Abstract: | Pythium stalk rot is a serious disease in maize production. A total of 1213 maize accessions were screened for resistance to Pythium stalk rot from 2013 to 2016. Among the 1213 germplasm resources, 207 were highly resistant to Pythium stalk rot, accounting for 17.1% of total accessions screened, mainly from Inner Mongolia, Hebei, Shanxi Provinces of China and the United States, 159 were resistant to Pythium stalk rot, accounting for 13.1% of total accessions, mainly from Inner Mongolia, Yunnan, Shanxi Provinces of China and USA, showing that there are relatively abundant germplasm resistant to Pythium stalk rot in these maize accessions, and the level of resistance is related to geographical origin. In present study, 18.7% of maize inbred lines were highly resistant to Pythium stalk rot, whereas 10.6% of landraces were highly resistant to the same diseases, indicating higher level of resistance and more multiple resistance were in inbred lines than in landraces. |
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| Keywords: | maize Pythium inflatum stalk rot resistance identification |
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