摘要
以切花菊‘神马’为材料,喷施不同复配比例的诱抗剂(壳聚糖和苯并噻唑)和蔗糖、KH2PO4,观测各处理对菊花的生长量、相关防御酶活性及褐斑病抗性的影响。结果表明:与对照相比,分别用诱抗剂300mg.L-1壳聚糖或100mg.L-1苯并噻唑,与3%蔗糖、0.3%KH2PO4复配后喷施菊花植株,能显著增加‘神马’的株高与茎粗,提高叶片的POD、PPO与PAL酶活性,降低褐斑病病情指数,提高诱抗效果,且壳聚糖与苯并噻唑的作用效果相似,二者均可作为防治菊花褐斑病的药剂。
Two self-defense inducers of chitosan and benzothiazole with sucrose and KH2PO4 were applied to evaluate the effects of compound agents on the growth of cut Chrysanthemum morifolium ＇Jinba＇,and mass growth,activities of related defensive enzymes and disease-resistance to brown spot were measured.Results showed that,when the compound agents of 300mg﹒L-1 chitosan or 100 mg﹒L-1 benzothiazole compounding with 3% of sucrose and 0.3% of KH2PO4 were sprayed on chrysanthemum,plant height,stem diameter,activities of POD,PPO and PAL in leaves,and effects of induced resistance were significantly promoted,and brown spot disease indexes were significantly reduced.The effects of chitosan were observed similar to that of benzothiazole.
出处
《核农学报》
CAS
CSCD
北大核心
2012年第6期967-973,共7页
Journal of Nuclear Agricultural Sciences
基金
农业部948项目(2011-G17)
关键词
壳聚糖
苯并噻唑
切花菊
褐斑病
生长量
chitosan
benzothiazole
cut chrysanthemum
brown spot disease
mass growth
