Article : Response Of Field Pea (Pisum Sativum) Selections/ Cultivars To Root-Knot Nematode (Meloidogyne Incognita) – Wilt Fungus (Fusarium Oxysporum) Disease Complex Under Green House Conditions

Title

Response Of Field Pea (Pisum Sativum) Selections/ Cultivars To Root-Knot Nematode (Meloidogyne Incognita) – Wilt Fungus (Fusarium Oxysporum) Disease Complex Under Green House Conditions

Author

Syed Abuzar

An experiment was conducted to evaluate the reactions of 23 selections/cultivars of field pea (Pisum sativum) against Meloidogyne incognita (2500 freshly hatched juveniles (J2)/pot) and 2 ml spore suspension of F. oxysporum containing 108 CFU/ml. Experiment was conducted under greenhouse conditions ((24.7±3) °C and (62±7)% RH) and terminated 45 d after inoculation. The roots of all the selections were assessed to determine root-knot indices (RKI) on a 0~4 scale. Out of 23 selections HFP-990713, Pant P-25, and HFP-0129 were resistant; Pant P-2005, NDP-2 and Pant P-42 were tolerant; LFP-305, HFP-8909, HFP-4, HUP-31, HFP-0128, Pant P-31, Pant P-40, LFP-363, and HFP-0118 were moderately resistant; HFP-0110, HUDP-28, HUDP-15, HUDP-27, HUP-30, HUP-2 and HUDP-26 were moderately susceptible; and only Ambika was Highly susceptible to M. incognita + F. oxysporum disease complex. It was observed that reproduction of nematode was favored on tolerant and susceptible cultivars but inhibited on resistant ones. Strong negative correlation was observed between the total fresh and dry plant weights and the root-knot index/disease index. The selection Pant P-42 showed highest tolerance among all the selections tested and can be recommended for field trials, whereas, selection Ambika was highly susceptible to M. incognita + F. oxysporum disease complex

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