论文部分内容阅读
球茎腐烂病是我国西红花生产上的重要病害。患病植株叶色发黄、有褪绿小斑点,渐渐变褐枯,病株矮化,提早枯死,新球茎变小或呈黑褐色病变,甚至严重腐烂,留下空壳,影响产量和品级。据研究表明,该病害由尖孢镰刀菌(Fusarum oxysporum)和茄病镰刀菌(F.solani)侵染引起;另外,青霉病菌(Penicillium sp.)腐生也加剧了为害程度。据室内平板测定,药剂多合胼、祛菌灵和大富丹等杀菌剂(含复配)抑菌作用明显优于相同剂量的多菌灵、菌毒清、百菌清和代森锰锌等10多种常用杀菌剂(《上海
Corms rot is an important disease in the production of saffron in our country. Sick yellow leaf color, small spots of chlorotic green, gradually brown, diseased plants dwarfed, dead early, new corms smaller or dark brown lesions, and even serious decay, leaving the shell, affecting the yield and grade . It has been shown that this disease is caused by Fusarum oxysporum and F. solani infections; in addition, the saprophytic activity of Penicillium sp. Aggravates the degree of harm. According to the indoor plate determination, the combination of chemical compound corpus, carbenicillin and davidan and other bactericidal agents (including compound) showed significantly better antibacterial activity than the same dose of carbendazim, bacterin, chlorothalonil and mancozeb 10 A variety of commonly used fungicides ("Shanghai