药剂处理对三倍体西瓜种子发芽势的影响及对果斑病的防治效果  

Effect of chemical treatments on germination of triploid watermelon seeds and control to bacterial fruit blotch

作　　者：董春玲[1,2] 杨玉文[2] 孙柏欣[2] 王铁霖[2] 折冬梅[2] 赵廷昌[2] 高洁[1] 

机构地区：[1]吉林农业大学农学院,长春130118 [2]中国农业科学院植物保护研究所,植物病虫害生物学国家重点实验室,北京100193

出　　处：《植物保护》2015年第1期178-184,共7页Plant Protection

基　　金：公益性行业(农业)科研专项(201003066);国家西甜瓜产业技术体系(CARS-26);中国农业科学院科技创新工程项目

摘　　要：选用本实验室组配的1号杀菌剂和3种常用药剂,比较了不同药剂及不同浓度的1号杀菌剂处理人工接菌的西瓜种子后对种子发芽、幼苗生长的促进作用和对果斑病的防治效果。结果显示:与对照CK1(种子破壳,清水处理)相比较,72%农用硫酸链霉素可溶粉剂7.2×102μg/mL处理2h、40%甲醛1.6×103μg/mL处理1h和1号杀菌剂0.5×104μg/mL处理2h,发芽势分别高出10.5%、6.7%和4.9%。供试药剂中1号杀菌剂处理种子对果斑病有较好的防治效果,1号杀菌剂0.5×104μg/mL处理2h、1%盐酸3.7×103μg/mL处理30min、40%甲醛溶液处理1h和72%农用硫酸链霉素可溶粉剂7.2×102μg/mL处理2h防治效果分别为74.7%、73.7%、58.5%和49.3%。Prepared bactericide No. 1 and three kinds of commonly used chemicals were chosen to treat the seeds of triploid watermelon inoculated with Acidovorax citrulli. The effect of different agents at different concentrations on seed germination, root length and control effect against bacterial fruit blotch （BFB）were evaluated. Results showed that germination rate of seeds treated with 72% agricultural streptomycin sulfate SP 7.2 ×10^2 μg/mL for 2 h, 40% formaldehyde solution 1.6 ^10^3 μg/mL for 1 h and bactericide No. 1 0.5 ×10^4μg/mL for 2 h were increased by 10.5%, 6.7% and 4.9%, respectively, compared with the control. Bactericide No. 1 demonstrated obviously good effects on BFB. Treatments with bactericide No. 1 0.5 ×10^4 μg/mL for 2 h, 1%HC1 3.7 ×10^3 μg/mL for 30 min, 40% formaldehyde solution for 1 h and 72% agricultural streptomycin sulfate SP 7.2 ×10^2 μg/mL for 2 h had the control efficacies of 74.7% ,73.7% ,58.5% and 49.3%, respectively.

关 键 词：三倍体(无籽)西瓜 西瓜嗜酸菌 药剂处理 种子发芽势 防病效果 

分 类 号：S436.5[农业科学—农业昆虫与害虫防治]