植物促生诱抗剂普绿通与多太保对白菜生长及抗病性的影响

为明确植物促生诱抗剂普绿通与多肽保对白菜生长及抗病性的影响,采用田间小区试验,研究普绿通与多肽保2种植物诱抗蛋白对白菜株高、叶片数、鲜重及病情指数等的影响。结果表明:植物促生诱抗剂能有效提高白菜鲜重和降低病情指数,其中,普绿通800倍浸根+苗期喷雾和多肽保500倍浸根+苗期喷雾的处理效果最好,其鲜重分别为807.19g/株和805.20g/株,与对照差异极显著,且在苗期对霜霉病的防治效果为31.40%和27.04%,可在反季节白菜生产上使用。

Effects of Two Plant Growth Promoting and Resistance Inducers on Growth and Disease Resistance Induction Chinese Cabbage

The height,leaf number,fresh weight/plant and disease index of Chinese cabbage treated with two plant growth promoting and resistance inducers (Pulvtong and dry mycelium of P.chrysogenum) are determined by a field plot experiment to discuss the effects of two plant growth promoting and resistance inducers on growth and disease resistance to downy mildew of Chinese cabbage.Results:Two plant growth promoting and resistance inducers can improve fresh weight/plant and reduce disease index at seedling stage effectively.The fresh weight/plant of Chinese cabbage of soaking seeds + spray at seedling stage with Pulutong 800 times and soaking seeds + spray at seedling stage with dry mycelium of P.chrysogenum500 times treatments is 807.19 g/plant and 805.20 g/plant,significantly higher than CK respectively.The control downy mildew effect of Chinese cabbage of soaking seeds + spray at seedling stage with Pulutong 800 times and soaking seeds + spray at seedling stage with dry mycelium of P.chrysogenum500 times treatments is up to 31.40％ and 27.04％ at seedling stage separately.Therefore,two plant growth promoting and resistance inducers can be used in production of anti-season Chinese cabbage.