1981•Tropical Pest ManagementRequires access

Cultivars of French Bean Resistant to Root-Knot Nematode,Meloidogyne incognita, in India

D. B. Singh, P. Parvatha Reddy, V. R. Rao, R. Rajendran

Abstract

Root-knot nematode, Meloidogyne incognita (Kofoid & White, 1919) Chitwood 1949, can limit production of French bean (Phaseolus vulgaris). The cheapest and best method of control is the use of resistant varieties. Although screening for resistance has been carried out in different parts of the world no such work has been carried out in India. The present study describes the screening and evaluation of 302 cultivars of French bean for resistance to M. incognita in replicated trials in the field and glasshouse under Indian conditions. Results showed 31 cultivars were resistant in both field and glasshouse conditions while 64 cultivars were moderately resistant. These 95 cultivars will be important to breeders interested in nematade-resistant cultivars of French bean.

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Key concepts: Meloidogyne incognita, Cultivar, Phaseolus, Terra incognita, Biology, Root-knot nematode, Agronomy, Horticulture