| 针叶树苗圃病害调查与主要病害发生规律研究 |
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| 引用本文： | 宋晓斌,曹支敏,张学武,余仲东,张刚龙.针叶树苗圃病害调查与主要病害发生规律研究[J].陕西林业科技,2003(2):48-52. |
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| 作者姓名： | 宋晓斌 曹支敏 张学武 余仲东 张刚龙 |
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| 作者单位： | 西北农林科技大学林学院,陕西杨凌,712100 |
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| 基金项目： | 国家十五攻关子课题“针叶树主要苗圃病害防治技术研究”(编号 :1 1 - 0 4 ) |
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| 摘 要： | 本文调查了针叶树苗期病害的种类和苗期病害的发生规律，结果表明针叶树苗期病害有8种，其中侵染性病害有6种，生理性病害有2种。猝倒病是针叶树苗期主要的病害，表现为3种症状类型。日灼型猝倒是气象性病害的主要形式，由丝核菌Rhizoctonia和镰刀菌Fusarium引起的生物猝倒型和立枯型病害是针叶树育苗的主要病害，其发生与育苗地所处的环境、营养土基质有关,同时提出了对针叶树苗期病害防治的对策。
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| 关 键 词： | 针叶树 苗圃病害 发生规律 症状 气象性病害 营养土 基质 |
| 文章编号： | 1001-2117(2003)02-0048-05 |
| 修稿时间： | 2003年2月15日 |
An Investigation on Diseases of Conifer Seedling and Occurrence Regulation of Main Disease |
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| SONG Xiao-bin,CAO Zhi-min,ZHANG Xue-wu,YU Zhong-dong,ZHANG Ga ng-long.An Investigation on Diseases of Conifer Seedling and Occurrence Regulation of Main Disease[J].Shaanxi Forest Science and Technology,2003(2):48-52. |
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| Authors: | SONG Xiao-bin CAO Zhi-min ZHANG Xue-wu YU Zhong-dong ZHANG Ga ng-long |
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| Abstract: | Varieties of disease on conifer seedlings were inv estigated and occurr ence regulation was studied. The results showed that there were 2 kinds of physi olo gical disease and 5 kinds of infecting disease damaging seedlings in Shaanxi reg ion. damping-off is the most serious disease of seedlings in nursery, and coul d b e divided into bud rot, scorch off, pathogical damping off three types. There we re close relations between the occurrence of damping-off and surrounding of se edling plot, nutrition soil. |
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| Keywords: | conifer disense damping-off |
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