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KMID : 1160220040320040155
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Mycobiology
2004 Volume.32 No. 4 p.155 ~ p.159
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Effect of the Mixture of Two Plant Alkaloids Isolated from Corydalis longipes Against Balsam Powdery Mildew on Detached Leaves and Pea Powdery Mildew in Field
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Gohain Leena
Maurya S.
Pandey M. B.
Pandey V. B.
Singh U. P.
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Abstract
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N-Methylhydrasteine hydroxylactam and 1-methoxyberberine chloride, both alkaloids, extracted from Corydalis longipes have been assayed for their activities against two powdery mildews. The spore germination of Erysiphe cichoracearum on detached leaf of balsam(Impatiens balsaminia) following pre- and post-inoculation treatments by their mixture has shown high efficacy against the pathogen at 100, 200 and 300 μg/ml. The mixture was also effective at both pre- and post-inoculation treatments at 500, 1000, 1500 μg/ml doses against E. pisi causing pea powdery mildew in pea(Pisum sativum) under field conditions. The significant efficacy of the mixture of two compounds against spore germination on detached leaves of balsam and also under field conditions in pea warrants its inclusion in trials against some other diseases under field conditions.
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KEYWORD
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Corydalis longipes, Erysiphe cichoracearum, Erysiphe pisi, 1-Methoxyberberine chloride, N-Methylhydrasteine hydroxylactam, Spore germination
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