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选用抗病品种是综合防治烟草黑胫病的中心环节。在抗病选种中,必须有科学的鉴定方法。 本文介绍人工病圃的设置与鉴定方法;并提出鉴定抗性的指标—抗性指数范围。 一、大田人工病圃的建立 于1977年选择一块靠水渠的中上等地力的田块,施入菌谷接种,每亩按5—6斤量处理,试验收获后,将病残茎杆截成1—2
The use of resistant varieties is the central link in the prevention and treatment of tobacco black shank disease. In disease-resistant selection, there must be scientific methods of identification. This article describes the establishment of artificial nursery and identification methods; and proposed indicators of resistance - resistance index range. First, Daejeon artificial nursery was established in 1977 to choose a block by the middle and upper soil fertility plots, applied to the bacterial valley inoculation, acre by 5-6 kg amount of treatment, the test harvest, the sick stem cut into 1-2