A Simple Technique, Concentration and Application Schedule for Using Neutralized Phosphorous Acid to Control Phytophthora Diseases

ASIA unversity > 醫學暨健康學院 > 生物科技學系 > 期刊論文 > Item 310904400/16343

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题名:	A Simple Technique, Concentration and Application Schedule for Using Neutralized Phosphorous Acid to Control Phytophthora Diseases
作者:	林俊義;Lin, Chien-Yih
贡献者:	生物科技學系
关键词:	"phosphorous acid, potassium hydroxide, Phytophthora parasitica, Phytophthora capsici, disease control, induced resistance"
日期:	2009-09
上传时间:	2012-11-23 09:11:45 (UTC+0)
摘要:	"Ann, P. J., Tsai, J. N., Wong, I. T., Hsieh, T. F., and Lin, C. Y. 2009. A simple technique, concentration and application schedule for using neutralized phosphorous acid to control Phytophthora diseases. Plant Pathol. Bull. 18: 155-165. A simple method for application of phosphorous acid to control Phytophthora diseases was developed. The proposed method involves measuring equal weight of phosphorous acid and potassium hydroxide and dissolving phosphorous acid in water before adding potassium hydroxide. The pH of the neutralized phosphorous acid solution (NPA) is 6.2-6.7. The NPA concentration at 5000 mg/L was effective in controlling tomato seedling blight caused by Phytophthora capsici when using soil drench method. For suppression of lily leaf and blossom blight caused by Phytophthora parasitica, foliar application is much more effective than soil drench. However, NPA concentrations exceeding 2000 mg/L were phytotoxic to young plant tissues. The best results were achieved by applying NPA at the rate of 1000 mg/L for 3 times at one week intervals. Applying NPA to mother lily plants also effectively protected bulblets from infection by P. parasitica during storage periods."
關聯:	植物病理學會刊
显示于类别:	[生物科技學系] 期刊論文

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