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عنوان البحث(Papers / Research Title)


Changes in abundance and infectivity of powdery mildew conidia from cucumber plants treated systemically with lithium chloride


الناشر \ المحرر \ الكاتب (Author / Editor / Publisher)

 
جواد كاظم عبود الجنابي

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جواد,كاظم,عبود,الجنابي ,Changes in abundance and infectivity of powdery mildew conidia from cucumber plants treated systemically with lithium chloride , Time 6/11/2011 8:40:23 PM : كلية العلوم

وصف الابستركت (Abstract)


Systemic treatment of cucumber plants with litbium chloride reduced the numbers of conidia produced

الوصف الكامل (Full Abstract)

 
Plant Pathology i\992) 41, 255-261 Changes in abundance and infectivity of powdery mildew conidia from cucumber plants treated systemically with lithium chloride J. K. ABOOD, D. M. LOSEL Department of Animal and Plant Seiences, University of Sheffield, Sheffield SIO 2TN, UKand P. G. AYRES Department of Biological Sciences, University of Lancaster,Lancaster LAI 4YQ, UK Systemic treatment of cucumber plants with litbium chloride reduced the numbers of conidia produced by colonies of powdery mildew, Sphaerothecafuliginea, growing on leaves, and lowered the infectivity of conidia produced from those leaves when they were applied to leaves of untreated plants. Production of conidiophores was lower in botb lithium-treated and calcium-deprived plants, and lithium slightly decreased the calcium content of leaves. When tbe lithium-containing growth medium was supplemented with phosphate, conidiophore production was still markedly reduced, although leaves had normal levels of calcium. Fungal development was not correlated with either the calcium or phosphorus content of leaves. It is concluded that, although severe calcium deficiency can inhibit fungal development, the inhibitory effects of lithium are not mediated through alterations in calcium or phosphorus uptake by host tissues.

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