行政院農業委員會台南區農業改良場  研究彙報第14號

洋香瓜葉片絨毛與白粉病發生之關係

鄭安秀 杜金池

摘  要

就10個洋香瓜品種(系)之葉片下表皮絨毛長度及密度初步調查與白粉病發病度相關性結果,發現下表皮葉毛密度越大的品種(系),白粉病的發生較輕微或不發病,是屬於一種形態上的抗病。除外,是否尚有其他型的抗病性存在,尚待進一步的研究。


Relation between Density of Trichomes and Incidence of Powdery mildew on Cantaloupe, Cucumis melo L.

A. H. Cheng and C. C. Tu

Summary

        The relation between the severity of powdery mildew disease and the length and density of trichomes of 10 varieties of cantaloupe, Cucumis melo L., was investigated. It was found that the length of trichome showed negative but the density of it expressed positive relation with the severity of the disease.  The results strongly suggested that morphologic resistance to powdery mildew was existed among varieties of cantaloupe.



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