Resistance in groundnut toSclerotium rolfsii‐causedstem and pod rot†

Autor:	N. Ramakrishna, S. Jayanthi, D. McDonald, C. D. Mayee, V. K. Mehan
Rok vydání:	1995
Předmět:	Germplasm Sclerotium biology Inoculation Fungi imperfecti biology.organism_classification Rust Arachis hypogaea Horticulture Point of delivery Insect Science Botany Puccinia arachidis Agronomy and Crop Science
Zdroj:	International Journal of Pest Management. 41:79-83
ISSN:	1366-5863 0967-0874
DOI:	10.1080/09670879509371927
Popis:	Eight hundred and fifty‐nine groundnut germplasm accessions and breeding lines were screened in field trials for resistance to stem and pod rot caused by Sclerotium rolfsiiduring the 1985–88 post‐rainy seasons at the ICRISAT Asia Center, Patancheru, India. Unes that showed low susceptibility to stem and pod rot (< 10%) were further evaluated at the Marathwada Agricultural University farm, Parbhani, India, during 1987–91 in the rainy and summer seasons. Of the 20 selected genotypes seven interspecific hybrid derivatives (326, 988, 1019, 1024, 1065, 1267, and 1364) consistently exhibited stable resistance to both stem and pod rot. Nine breeding lines (ICGV 86034, 86124, 86252, 86388, 86590, 86606, 86635, 87160, and 87359) showed low susceptibility to stem and/or pod rot. Effective screening for stem and pod rot resistance was possible in the post‐rainy and summer seasons. Several lines with low susceptibility to 5. rolfsii also possess resistance to rust (Puccinia arachidis) and moderate resistance...
Databáze:	OpenAIRE
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