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| The Effect of Wheat Mixtures on the Powdery Mildew Disease and Some Yield Components |
| LI Ning, JIA Shao-feng, WANG Xiu-na, DUAN Xia-yu, ZHOU Yi-lin, WANG Zong-hua , LU Guodong |
1.State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.China
2.School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, P.R.China |
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摘要 Mixtures composed of five wheat cultivars, Jingshuang 16, Jing 411, Jingdong 8, Lunxuan 987, and Baofeng 104, with different levels of resistance against powdery mildew were tested for their potential containment of the disease development in the field and for the influence on grain yield and the content of crude protein in the years 2007 and 2010. The plots were inoculated artificially with mixed isolates collected in the fields and propagated in the greenhouse and the disease was scored in 7 d interval during the two growing seasons. It was indicated that certain combinations, e.g., Jingdong 8: Lunxuan 987, Jingdong 8:Baofeng 104, and Jing 411:Jingdong 8:Baofeng 104, showed positive efficacy on the mildew. The cultivar combinations tested in 2007 showed increase of grain yield, while most of the combinations tested in 2010 did not show the increase. The differences of the increases or decreases were not statistically significant except combinations Jing 411:Jingdong 8:Baofeng104, Jingshuang16:Jingdong8:Lunxuang 987 and Jingshuang 16:Jingdong 8:Lunxuan 987: Baofeng 104, which showed the decrease of the grain yield. The mixtures did not show influence on the content of crude protein in grain. More cultivar combinations need to be tested.
Abstract Mixtures composed of five wheat cultivars, Jingshuang 16, Jing 411, Jingdong 8, Lunxuan 987, and Baofeng 104, with different levels of resistance against powdery mildew were tested for their potential containment of the disease development in the field and for the influence on grain yield and the content of crude protein in the years 2007 and 2010. The plots were inoculated artificially with mixed isolates collected in the fields and propagated in the greenhouse and the disease was scored in 7 d interval during the two growing seasons. It was indicated that certain combinations, e.g., Jingdong 8: Lunxuan 987, Jingdong 8:Baofeng 104, and Jing 411:Jingdong 8:Baofeng 104, showed positive efficacy on the mildew. The cultivar combinations tested in 2007 showed increase of grain yield, while most of the combinations tested in 2010 did not show the increase. The differences of the increases or decreases were not statistically significant except combinations Jing 411:Jingdong 8:Baofeng104, Jingshuang16:Jingdong8:Lunxuang 987 and Jingshuang 16:Jingdong 8:Lunxuan 987: Baofeng 104, which showed the decrease of the grain yield. The mixtures did not show influence on the content of crude protein in grain. More cultivar combinations need to be tested.
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Received: 04 May 2011
Accepted:
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| Fund: This work was supported by the National Basic Research Program of China (2006CB100203 and 2011CB100403), the Key Technology R & D Program of China during the 11th Five-Year Plan period (2006BAD08A05) and the Special Fund for Agro-Scientific Research in the Public Interest, China (3-15). |
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Corresponding Authors:
Correspondence DUAN Xia-yu, Tel: +86-10-62815946, Fax: +86-10-62896114, E-mail: xyduan@ippcaas.cn
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Cite this article:
LI Ning, JIA Shao-feng, WANG Xiu-na, DUAN Xia-yu, ZHOU Yi-lin, WANG Zong-hua , LU Guodong .
2012.
The Effect of Wheat Mixtures on the Powdery Mildew Disease and Some Yield Components. Journal of Integrative Agriculture, 12(4): 611-620.
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