Integrated Approaches for the Management of Rice Root-knot Nematode, Meloidogyne graminicola in Rice
Indian Agricultural Research Journals
View Archive InfoField | Value | |
Title |
Integrated Approaches for the Management of Rice Root-knot Nematode, Meloidogyne graminicola in Rice
|
|
Creator |
KUMAR, VINOD
KUMAR, ANIL MANN , S.S. KAMBOJ, RUBAL |
|
Subject |
Azotobacter chroococcum, Meloidogyne graminicola, neem cake, Oryza sativa, Pseudomonas fluorescens, Trichoderma viride
|
|
Description |
The experiments were carried out in the lab, screen-house and field to manage rice root-knot nematode, Meloidogyne graminicola, in rice. In lab assays, rhizobacterial strains and phytotherapeutic substances caused mortality of M. graminicola juveniles at all dilutions, i.e., 1:5, 1:10, 1:20, 1:40 and 1:80 at 1, 2, 4, 6 and 8 days. Among the rhizobacterial strains and plant extracts, the maximum juvenile mortality was observed in Azotobacter chroococcum HT 54 (65.2%), which was at par with the aqueous extracts of Azadirachta indica (61.8%). In nursery treatments in pots, seed treatment with A. chroococcum HT 54 and application of neem cake @ 50 g/pot showed a high biocontrol efficacy against M. graminicola, promoted plant growth of rice and significantly suppressed finalnematode population (147 J2/200 cc soil) as compared to untreated check (923 J2/200 cc soil). In the main field experiment, maximum plant height (124.7 cm) and grain yield (51.2 q/ha) were recorded in the treatments where two deep summer ploughings (10-day interval) and seedlings treated with A. chroococcum HT 54 + neem cake @ 50 g/pot was given. Combination of the treated nursery (A. chroococcum HT 54 + neem cake @ 50 g/pot) with deep summer ploughing significantly reduced the number of galls (29.6), no.of eggs per plant (3551) and final nematode population (138 J2/200 cc soil).
|
|
Publisher |
Nematological Society of India
|
|
Date |
2024-09-08
|
|
Type |
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion |
|
Format |
application/pdf
|
|
Identifier |
https://epubs.icar.org.in/index.php/IJN/article/view/156141
|
|
Source |
Indian Journal of Nematology; Vol. 53 No. 2 (2023): Indian Journal of Nematology; 131-141
0974-4444 0303-6960 |
|
Language |
eng
|
|
Relation |
https://epubs.icar.org.in/index.php/IJN/article/view/156141/55742
|
|
Rights |
Copyright (c) 2024 Indian Journal of Nematology
https://creativecommons.org/licenses/by-nc-sa/4.0 |
|