Effects of management practices of root-knot nematode, Meloidogyne incognita on growth of mungbean [Vigna radiata (L.) Wilczek]
Effects of management practices of root-knot nematode, Meloidogyne incognita on growth of mungbean [Vigna radiata (L.) Wilczek]
- Author(s) C.D. Waghmare, Pankaj, S. Paul and H.K. Sharma
- Year: 2024
- Month: January
- Volume: 61
- Pages: 77-96
In glass house, we studied the effects of different management practices [carbofuran @ 1 and 2 kg a.i./ha-1, Trichoderma harzianum @1 and 2 % w/w and neem (Azadirachta indica L.) oil @ 1 and 2 % w/v (1500 ppm)] as seed treatment on root-knot nematode (RKN) and their impact on plant growth of mungbean. The neem oil (i). stimulated the nodule formation and functioning, (ii). improved the uptake of major nutrients [N (1.65 %), P (0.39 %), K (2.58 %), Ca (4.28 %) and Mg (0.58 %)] and (iii). increased shoot length (32.59 %), root length (12.89 %), fresh and dry weight of shoot (57.07 % and 75.41 % resp.) than untreated inoculated control plants. However, it decreased the root fresh (11.83 %) and dry weight (31.26 %) over control. While carbofuran treatment, showed decreased plant growth than control. The nematode incidence [root galls/plant, egg masses/plant and nematode population] was least with carbofuran followed by neem oil and T. harzianum. Neem oil significantly enhanced plant yield (number and weight of pods per plant) by 70% and 108%, respectively, compared to other treatments including carbofuran, T. harzianum, and control. The neem oil and T. harzianum not only provided good biocontrol of root-knot nematode but also enhanced to vegetative growth and nodulation in mungbean.
