南京地区不同松种和马尾松种源对松材线虫病的抗性及病害流行规律  被引量:12

Studies on Resistance of Pine Species and Masson Pine Provenances to Bursaphelenchus xylophilus and the Epidemic Law of the Nematode in Nanjing

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作  者:徐福元[1,2] 葛明宏[1,2] 朱正昌[1,2] 朱克恭[1,2] 

机构地区:[1]江苏省林业科学研究所 [2]南京林业大学

出  处:《林业科学研究》1996年第5期521-524,共4页Forest Research

基  金:八五"国家攻关项目

摘  要:研究结果表明:火炬松、短叶松和刚松对松材线虫病为高抗松种,马尾松的抗性弱于以上3个松种,但明显强于黑松、赤松、湿地松和晚松;从40个马尾松种源中初选出5个抗性强的种源;选育推广高抗松种和抗性强的马尾松种源,营造混交林,彻底清除处理病死木及加强检疫工作是控制松材线虫病蔓延的根本性措施。This paper deals with the studies on the resistance and resistant evaluation of the pine species: Pinus thunbergii ,P.massoniana,P.densiflora,P.taeda L., P.elliottii,P.rigida,P.echinata Mill, P.rigida var. seriotina and other 40 provenances of Masson pine,and the epidemic law of pine wood nematode(PWN),and their control treatment. The results showed that:1.There are three species of pine( P.taeda,P.echinata,P.rigida ),five provenances and 3~14 year old nature stand of Masson pine resistanting to PWN;2.The first year′s high temperature resulted in the early emergence of the vector of adult Monochamus alternatus and the more rainfall limited the beetle adults′ flying and their spread,and the more concentration of their occurrence in the following year;3.The spread of the PWN has the form of point emergence immigrated from far distance,and the fact that the artificial spread along the railroad and main highway is serious,then it become widespread in the whole forest;4.Stresses should be placed on the selecting of high resistant species and provenances of pine,planting mixed forest,cutting clearly each one of the dead trees caused by PWN and fumigating them with the fumigant,and strengthening the work of quarantine.

关 键 词:松材线虫 松种 马尾松 种源 流行规律 抗虫性 

分 类 号:S763.712.4[农业科学—森林保护学]

 

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