Temperature response, pathogenicity, seed infection and mutant evaluation againstMacrophomina phaseolinacausing charcoal rot disease of sesame

Autor:	Khalid Pervaiz Akhtar, Hafiz Muhammad Imran Arshad, G. Sarwar
Rok vydání:	2011
Předmět:	Fungal growth Mutant food and beverages Biology Pathogenicity biology.organism_classification Horticulture visual_art Botany Plant species Macrophomina phaseolina visual_art.visual_art_medium Charcoal Agronomy and Crop Science Temperature response Mycelium
Zdroj:	Archives Of Phytopathology And Plant Protection. 44:320-330
ISSN:	1477-2906 0323-5408
Popis:	Charcoal rot caused by Macrophomina phaseolina is a serious disease of sesame in Pakistan. M. phaseolina sesame isolate was subjected to growth rate test at 10, 15, 20, 25, 30, 35 and 40°C. The optimum temperature for fungal growth and microsclerotia production was found to be 30–35°C. Gray to black, radial fungal colonies with intermediate mycelial growth and jet black oval to round microsclerotia were observed at this optimum range. M. phaseolina was found to be pathogenic against all the 18 tested plant species and this pathogenicity proved its necrophytic behavior. Seed infection efficiency of M. phaseolina was 100% with significant reduction in seed index. For two consecutive years 21 mutants/varieties were screened in the field for their reactions to charcoal rot disease. During 2007 three mutants NS11704S1, NS11304S2 and NS26004 were ranked as resistant while others were moderately resistant to highly susceptible. During 2008 all mutants showed a susceptible to highly susceptible reaction with vari...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8bf538ecc07e01e1e6c4fab8598192b2 https://doi.org/10.1080/03235400903052945 Zobrazit plný text záznamu