Pot studies were carried out to evaluate the reactions of 23 selections of field pea (Pisum sativum) against Meloidogyne incognita (2000 freshly hatched juveniles (J2)/pot). Experiment was conducted under greenhouse conditions ((24.7+/-3) degrees 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 susceptible to M. incognita. 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. The selection Pant P-42 showed highest tolerance among all the selections tested and can be recommended for field trials, whereas, selection Ambika showed highest susceptibility and should be avoided.
Animals ; Peas ; classification ; genetics ; parasitology ; Plant Roots ; classification ; parasitology ; Tylenchoidea ; pathogenicity ; physiology

Studies were conducted under pot conditions to determine the comparative efficacy of carbofuran at 1 mg a.i./kg soil, bavistin at 1 mg a.i./kg soil, neem (Azadirachta indica) seed powder at 50 mg/kg soil, green mould (Trichoderma harzianum) at 50.0 ml/kg soil, rhizobacteria (Pseudomonas fluorescens) at 50.0 ml/kg soil against root-knot nematode, Meloidogyne incognita-wilt fungus, Fusarium oxysporum disease complex on green gram, Vigna radiata cv ML-1108. All the treatments significantly improved the growth of the plants as compared to untreated inoculated plants. Analysis of data showed that carbofuran and A. indica seed powder increased plant growth and yield significantly more in comparison to bavistin and P. fluorescens. Carbofuran was highly effective against nematode, bavistin against fungus, A. indica seed powder against both the pathogens and both the bioagents were moderately effective against both the pathogens.
Animals ; Benzimidazoles ; administration & dosage ; Carbamates ; administration & dosage ; Carbofuran ; administration & dosage ; Fusarium ; drug effects ; pathogenicity ; Glycerides ; administration & dosage ; Pest Control ; methods ; Phaseolus ; drug effects ; microbiology ; parasitology ; Plant Diseases ; microbiology ; parasitology ; Terpenes ; administration & dosage ; Tylenchoidea ; drug effects ; microbiology ; pathogenicity