硅剂处理对‘玉金香’甜瓜红粉病的抑制

园艺学报 ›› 2003, Vol. 30 ›› Issue (5): 586-588.

硅剂处理对‘玉金香’甜瓜红粉病的抑制

郭玉蓉¹;毕阳^1*;曹孜义²

(¹ 甘肃农业大学食品科学与工程系, 兰州730070 ;² 甘肃农业大学农学院, 兰州730070)

收稿日期:2003-01-06 修回日期:2003-04-08 出版日期:2003-10-25 发布日期:2003-10-25

Inhibiting Muskmelon Pink Mold Rot of Cantaloupe ‘Yujinxiang’Treated withSilicon Agents

Guo Yurong¹;Bi Yang¹;Cao Ziyi²

(¹ Department of Food Science and Engineering , Gansu Agricultural University , Lanzhou 730070 , China ;² Department of Veterinary Science , Gansu Agricultural University , Lanzhou 730070 , China)

Received:2003-01-06 Revised:2003-04-08 Online:2003-10-25 Published:2003-10-25

摘要/Abstract

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50 mmol/L 时, 其病斑直径极显著( P <0.01) 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; 正硅酸乙酯和高浓度的硅酸钠会造成药物伤害。

关键词: 甜瓜, 硅制剂, POD, PAL, 红粉病

Abstract: Cantaloupe ‘Yujinxiang’was treated with different silicon agents to study their imfluence on muskmelon pink mold rot . The results showed 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 tests , 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 50 mmol/ L , the lesion diameters in treated
melons significantly decreased ( 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 treated with nanosize silicon oxide. Ethyl
ester silicate and higher concentration sodium silicae made a different-degree injury on melons.

Key words: Melon, Cantaloupe, Silicon agents, POD, PAL, Muskmelon pink mold rot

中图分类号:

S 652

郭玉蓉;毕阳;曹孜义. 硅剂处理对‘玉金香’甜瓜红粉病的抑制[J]. 园艺学报, 2003, 30(5): 586-588.

Guo Yurong;Bi Yang;Cao Ziyi. Inhibiting Muskmelon Pink Mold Rot of Cantaloupe ‘Yujinxiang’Treated withSilicon Agents[J]. ACTA HORTICULTURAE SINICA, 2003, 30(5): 586-588.

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