摘要
通过田间试验,评估了贝莱斯芽孢杆菌(Bacillus velezensis,T2)、枯草芽孢杆菌(Bacillus subtilis,T3)和巨大芽孢杆菌(Bacillus megaterium,T4)对黄瓜白粉病的防治效果及其对植株生长、产量、品质和抗氧化系统的影响,并将这3种芽孢杆菌处理分别与化学药剂(T1)及空白对照(CK)进行对比。结果表明,3种芽孢杆菌处理均能有效防控白粉病,同时促进植株生长、提高产量并改善果实品质,其中,贝莱斯芽孢杆菌的表现尤为突出。在防治效果层面,T2与化学药剂T1相近,且显著优于T3和T4。在产量方面,T1最高,T2次之,两者均显著高于其他芽孢杆菌处理和CK。在植株生长指标方面,同样以T1为最优,T2紧跟其后,且显著优于T3和T4,各处理的指标均显著高于CK。在果实品质方面,T2处理显著提升了可溶性蛋白、游离氨基酸、可溶性糖及维生素C含量等关键指标,效果优于CK。此外,T2处理还有效增强了植株的光合能力,显著降低了膜脂过氧化水平,提高了抗氧化酶活性,其抗氧化表现优于T3和T4。
The efficacy of Bacillus velezensis(T2),Bacillus subtilis(T3),and Bacillus megaterium(T4)against cucumber powdery mildew and their impacts on plant growth,yield,fruit quality,and the antioxidant system were evaluated through field trials,and three Bacillus treatments were compared to a chemical fungicide(T1)and an untreated control(CK).Results demonstrated that all three Bacillus treatments effectively suppressed powdery mildew and enhanced plant growth,yield,and fruit quality,with T2 exhibiting the most pronounced effects.In terms of disease control efficacy,T2 achieved a level close to that of the chemical fungicide T1 and significantly outperformed both T3 and T4.Regarding yield,T1 produced the highest yield,closely followed by T2.Both T1 and T2 yields were significantly greater than those of the other Bacillus treatments and CK.Similarly,T1 showed optimal plant growth performance across measured indicators,with T2 ranking second.Both T1 and T2 significantly exceeded T3 and T4,while all treatments surpassed CK.T2 treatment significantly enhanced key fruit quality parameters,including soluble protein,free amino acid,soluble sugar,and vitamin C content,compared to CK.Furthermore,T2 effectively increased photosynthetic capacity,significantly reduced membrane lipid peroxidation levels,and boosted antioxidant enzyme activity,demonstrating superior antioxidant performance relative to T3 and T4.
作者
宋以星
刘欣宇
刘铮
SONG Yi-xing;LIU Xin-yu;LIU Zheng(Agricultural and Rural Affairs Bureau of Yanjin County,Yanjin 453200,Henan,China;Institute of Rural Economy,Liaoning Academy of Agricultural Sciences,Shenyang 110161,China;Institute of Organic Recycling(Suzhou),China Agricultural University,Suzhou 215100,Jiangsu,China)
出处
《湖北农业科学》
2025年第7期68-73,共6页
Hubei Agricultural Sciences
基金
辽宁省社会科学规划基金项目(L21CJY016)。
