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Evaluation of potato response to some manurialcompounds for controlling brown rot disease [electronic resource].

By:

Mahmoud, S. M

Contributor(s):

Gomah, A. A

Language: English Summary language: Arabic Description: P. 1157-1167Other title:

تقييم بعض المركبات السمادية فى مقاومة مرض العفن البنى على البطاطس [Added title page title]

Uniform titles:

Egyptian journal of agricultural research, 2007 v. 85 (4) [electronic resource].

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In: Egyptian Journal of Agricultural Research 2007.v.85(4)Summary: Susceptibility to brown rot was determined in five potato cultivars. Valor cultivar: showed high susceptibility followed by Spunta. Nid51aand Desiree showed low susceptibilit,y, while Daimant was moderate in this respect. The results of manuring showed that humic acid (,2.9%), ammonium sulphate, calcium superphosphate and potassium sulphate deceased the growth of Ralstonia solanacearum at the tested concentrations up to 4%. Greenhouse experiments with Valor cultivar showed that all tested manurial compounds variably reduced the disease incidence.The most effective treatment was calcium superphosphate, followed by potassium sulfate and ammonium sulfate, respectively. Actosol (humic acid, 2.9%) was the least effective in disease control. The increase in tuber yield was recognized at significant level in all used treatments.

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Susceptibility to brown rot was determined in five potato cultivars. Valor cultivar: showed high susceptibility followed by Spunta. Nid51aand Desiree showed low susceptibilit,y, while Daimant was moderate in this respect. The results of manuring showed that humic acid (,2.9%), ammonium sulphate, calcium superphosphate and potassium sulphate deceased the growth of Ralstonia solanacearum at the tested concentrations up to 4%. Greenhouse experiments with Valor cultivar showed that all tested manurial compounds variably reduced the disease incidence.The most effective treatment was calcium superphosphate, followed by potassium sulfate and ammonium sulfate, respectively. Actosol (humic acid, 2.9%) was the least effective in disease control. The increase in tuber yield was recognized at significant level in all used treatments.

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