| 不同紫花苜蓿品种根部入侵真菌研究 |
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| 引用本文： | 郭玉霞,王成章,严学兵,李德峰,吕超,马登坦.不同紫花苜蓿品种根部入侵真菌研究[J].草地学报,2009,17(6):723-730. |
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| 作者姓名： | 郭玉霞 王成章 严学兵 李德峰 吕超 马登坦 |
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| 作者单位： | 河南农业大学牧医工程学院,河南,郑州,450002 |
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| 基金项目： | 现代农业产业技术体系建设专项资金和河南省农业科技成果转化项目 |
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| 摘 要： | 为探讨紫花苜蓿(Medicago sativa L.)品种不同季节常见根部入侵真菌及其表现规律,并为苜蓿品种选择及其病害防治提供科学依据,以30个紫花苜蓿品种为材料,分别于2006年的春、夏、秋季取样,分离和鉴定根部入侵真菌.结果表明:不同生长季节苜蓿根部入侵真菌区系中优势菌种类明显不同,春、夏、秋3季均有的建群种为细交链孢(Alternaria alternata)和腐皮镰孢(Fusarium solani),其中春、夏季还有半裸镰孢(F.semitectum)和尖孢镰孢(F. oxysporum),秋季有锐顶镰孢(F. acuminatum)和柱孢(Cylindrocarpon destructuns);不同苜蓿品种在3个季节的入侵真菌种类和其分离率均有显著差异(P＜0.05),且根部带菌率与生长季节苜蓿品种密切相关,春季以赛特(Sitel)的带菌率最高,夏、秋季以农宝(Farmers)和佛纳尔(Vernel)为最高,平均带菌率较高的5个苜蓿品种依次是:赛特、农宝、皇冠(Phabulous)、航海4号(Flight No.4)和猎人河(Hunfer river),平均带菌率较低的5个苜蓿品种依次是:苜蓿王(Alfaking)、爱菲尼特(Affinity)、WL-525HQ、顶点(Apex)和丰叶 721(Amerileaf 721).
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| 关 键 词： | 紫花苜蓿 根部入侵真菌 带菌率 分离率 |
Root-invading Fungi of Different Alfalfa Varieties |
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| GUO Yu-xia,WANG Cheng-zhang,YAN Xue-bing,LI De-Feng,LV Chao,MA Deng-tan.Root-invading Fungi of Different Alfalfa Varieties[J].Acta Agrestia Sinica,2009,17(6):723-730. |
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| Authors: | GUO Yu-xia WANG Cheng-zhang YAN Xue-bing LI De-Feng LV Chao MA Deng-tan |
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| Institution: | GUO Yu-xia,WANG Cheng-zhang*,YAN Xue-bing,LI De-Feng,LV Chao,MA Deng-tan(College of Animal , Veterinary Science,Henan Agricultural University,Zhengzhou,Henan Province 450002,China) |
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| Abstract: | The objective of this study was to explore the common root-invading fungi of different alfalfa varieties in different growing seasons for better variety selection and its disease control.The field experiment was conducted on thirty Alfalfa(Medicago sativa L.) varieties in Henan province,China and alfalfa roots were sampled in spring,summer,and autumn in 2006 and then fungi were isolated from alfalfa rootlet.The results show that:(1) the dominant fungus species in three seasons were obviously different.Alter... |
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| Keywords: | Medicago sativa L Variety Root-invading fungi Incidence rate Isolation rate |
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