摘要
用不同硅剂处理研究硅对‘玉金香’甜瓜采后红粉病的影响。离体试验结果表明 :硅酸钠和正硅酸乙酯对粉红聚端孢菌丝生长有明显抑制作用 ,纳米氧化硅则没有影响。体内试验结果表明 :硅酸钠和纳米氧化硅均能降低红粉病的发生程度 ,当两种硅剂浓度达到 50mmol/L时 ,其病斑直径极显著 (P <0 0 1)小于对照 ;硅酸钠处理能显著提高POD和PAL的活性 ,而钠米氧化硅无显著影响 ;
Cantaloupe‘Yujinxiang’was treated with different s ili con agents to study their imfluence on muskmelon pink mold rot.The results showe d that:Sodium silicate and ethyl ester silicate was effective in suppressing the redial growth of T.roseum by way of in vitro tests while nanosize silicon oxide was ineffective.By menas of in vivo tes ts,both sodium silicate and nanosize silicon oxide reduced the severity of pink rot of the cantaloupe. Whenn the concentrations of both silicon agents were at 50mmol/L,the lesion diameters in treated melons significantly decre ased(P<0 01)compared with those in the control groups.Enhanced POD and PAL activities were observed in sodium silicate-treated melons but not in those tr eated with nanosize silicon oxide.Ethyl ester silicate and higher concentration sodium silicae made a different-degree injury on melons.
出处
《园艺学报》
CAS
CSCD
北大核心
2003年第5期586-588,共3页
Acta Horticulturae Sinica
基金
教育部资助项目 (0 0 2 49)
关键词
硅剂处理
'玉金香’甜瓜
红粉病
抑制
Melon
Cantaloupe
Silicon agents
POD
PAL
Muskmelon pi nk mold rot
