| 河西灌区甜菜丛根病的发生及其区域分布 |
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| 引用本文： | 李敏权,王致和.河西灌区甜菜丛根病的发生及其区域分布[J].甘肃农业大学学报,1994,29(2):210-212. |
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| 作者姓名： | 李敏权 王致和 |
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| 作者单位： | 甘肃农业大学植保系，甘肃省甜菜糖业研究所 |
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| 摘 要： | 对河西灌区９县（市）进行了甜莱丛根病的普查和室内研究，调查研究表明，其中有６县（市）的甜菜种植区该病普遍发生。发病率最低１０．６％，最高４８．２％。田间表现症状类型，黄脉型占６７．４％，焦枯型占２５．３％，黄脉型占０．３％，混合型占７％。病害发生程度与轮作年限呈明显的负相关。茬口，种植模式，灌水，施肥对病害的发生也有一定的影响。
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| 关 键 词： | 甜菜，丛根病，区域分布 |
Rhizomonia and Its Regional Distribution in Hexi Irrigation District |
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| Li Minquan Lin,Shjie Shujie Wang Zhihe Wang FuheLiu Binji.Rhizomonia and Its Regional Distribution in Hexi Irrigation District[J].Journal of Gansu Agricultural University,1994,29(2):210-212. |
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| Authors: | Li Minquan Lin Shjie Shujie Wang Zhihe Wang FuheLiu Binji |
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| Institution: | 1 Gansu Agricultural University. Lanzhou 730070;2 Gansu Sugar Beet Resarch lnstitute |
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| Abstract: | The Rhizomonia is one of the most distructive beet diseases in Hexi in Hexi irrigation district,Gansu. Since 1988,the disease has been found in 6 connties(caties) in the region. According to the data investigated, there were three kinds of symptoms in the field.e. g, the mildly yellow' leaves (674 %), the flably and wilt leaves without discolortion (25. 3 % ), the veinal yellow.leaves with necroticlesions (0. 3 %),and mixture symptoms(7 %) |
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| Keywords: | sugar beet rhizomionia regional distribution |
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