两种中草药水浸液对小麦条锈病菌的抑制作用研究

Inhibition Effect on Wheat Stripe Rust with Extract of Daphne Giraldii Nitsche and Xanthium Sibiricum Patrin

采用生物测定方法,研究了中草药苍耳、黄瑞香提取液对小麦条锈病菌的抑制作用。结果表明,小麦条锈病降低小麦种子的生活力,影响小麦幼苗的生长发育。不同浓度苍耳、黄瑞香提取液对小麦条锈病孢子萌发有抑制作用,其中0.50 g/mL苍耳、黄瑞香提取液其抑制率分别为69.29%和64.44%;不同浓度的中草药苍耳、黄瑞香提取液对小麦条锈病菌丝生长均有抑制,0.50 g/mL苍耳、黄瑞香提取液效果最好,抑制率分别为55.44%和44.77%,与对照相比差异都达显著性水平。

This paper studied the inhibition effects on wheat stripe rust with extract of Daphne giraldii Nitsche and Xanthium sibiricum Patrin.The results showed that,wheat stripe rust would reduce the seed ability and seedling growth.Different concentration gradients of two kinds of aqueous extracts have inhibition effects on spore germination of wheat stripe rust.The inhibiting rates of the aqueous extracts at 0.50 g/mL can reached by 64.44% to 69.29%,different concentration gradients of two kinds of aqueous extract have inhibition effect on germination of sporangium.The best effects appeared in the concentration of 0.50 g/mL for the two kinds of aqueous extract.The inhibiting rates from Daphne giraldii and Xanthium sibiricum reached by 55.44% and 44.77%,respectively which were significantly higher than that of the control.