Production and viability of peronospora-parasitica in radish

Jang, P. and Safeeulla, K. M. (1990) Production and viability of peronospora-parasitica in radish. Proceedings of the Indian Academy of Sciences-Plant Sciences, 100 (2). pp. 117-122.

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InPeronospora parasitica the inoculum load is found in the form of oospores in the leaf and seed tissues of radish. Out of 400 seeds tested, 10% showed the presence of oospores in the pericarp and 0·1% in the embryo. The 2,3,5-triphenyltetrazolium chloride test is a quick method of determining the viability of the oospores. Viability of oospores based on infection capacity after storage, though a long process, is effective and reliable. Results ofin vitro andin vivo experiments show that the oospores need natural weathering, under field conditions, for a period of one year for maximum infection in radish and those stored for two years under the same conditions, has an adverse effect on their infection capacity. Infection capacity was higher among oospores exposed to weathering than those retained in laboratory.

Item Type: Article
Subjects: B Life Science > Botany
Divisions: Department of > Botany
Depositing User: Dr Raju C
Date Deposited: 21 Jan 2021 09:58
Last Modified: 27 Jan 2021 07:39

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