摘要
为明确内生真菌发酵液对小麦赤霉病的防治作用以及对小麦安全性的影响,研究开展一系列试验验证其效果.室内平板对峙结果表明,CK-25 对峙效果最好,抑制率最高,防治效果为 89.60%,其次为 CK-20、CK-15,最差为 CK-10.孢子萌发结果表明,CK-10 的孢子萌发率最强,萌发率为 88.73%,其次为 CK-15、CK-20,CK-25 最差.温室盆栽试验表明,内生真菌发酵液显著提高了小麦对赤霉病的防治效果.其中,CK-25 发病率最轻,病穗防治效果 68.75%,病情指数 3.00,病情指数防治效果最好,为 78.57%.大田试验表明,CK-25病穗率最轻,为 22.00%,病穗率防治效果为 71.79%,病情指数为 2.30,病情指数防治效果 75.79%,且对小麦生长无影响.综上所述,内生真菌发酵液可以防治小麦赤霉病,且不同的浓度内生真菌发酵液对小麦赤霉病的抑制效果不同,内生真菌发酵液可作为小麦赤霉病的一个抗性手段.
Abstract
In order to clarify the preventive effects of endophytic fungal fermentation broth on wheat scab and its impact on wheat safety,a series of experiments was conducted to verify its effectiveness.The indoor plate confrontation results showed that CK-25 had the best confrontation effect,the highest inhibition rate,and a prevention effect of 89.60%,followed by CK-20 and CK-15,and the worst was CK-10.The spore germination results showed that CK-10 had the strongest spore germination rate,with a germination rate of 88.73%,followed by CK-15 and CK-20,and CK-25 had the worst germination rate.The greenhouse pot experiment results showed that the fermentation broth of endophytic fungi significantly improved the prevention effect on wheat scab.Among them,the incidence rate of CK-25 was the lightest,with 68.75%of Prevention and control effect of diseased panicle rate and 3.00 of disease index.The control effect of disease index was the best,78.57%.The results of field experiments showed that CK-25 had the lightest diseased panicle rate of 22.00%,Prevention and control effect of diseased panicle rate of 71.79%,a disease index of 2.30,and a disease index control effect of 75.79%,and had no effect on wheat growth.In summary,endophytic fungal fermentation broth can prevent and control wheat scab,and different concentrations of endophytic fungal fermentation broth have different prevention effects on wheat scab.Endophytic fungal fermentation broth can be used as a means of resistance to wheat scab.
基金项目
&&(HABL202124)
淮安市农业科学研究院科研基金项目(HNY202014)
&&(HABL2023050)
维普
万方数据