Studies on Management of Root Knot Nematode (Meloidogyne graminicola) in rice
| dc.contributor.advisor | Kamal Khilari | |
| dc.contributor.author | ABHISHEK KUMAR | |
| dc.date.accessioned | 2024-06-20T15:13:37Z | |
| dc.date.available | 2024-06-20T15:13:37Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | Name: Abhishek Kumar I.D. No.: 2995 Semester and year of Admission: Ist semester,2014-15 Degree : M,Sc.(Ag.) Department : Plant Pathology Advisor: Dr. Kamal Khilari Thesis Title: Studies on Management of Root Knot Nematode (Meloidogyne graminicola) in Rice. ABSTRACT Rice is one of the most important food crops in the world. In India, rice contributes 43 per cent of the total food grain production and 46 per cent of the total cereal production. Rice crop is affected by many fungal, bacterial, viral and nematode diseases. Among the nematodes, rice root knot nematode (M. graminicola) is considered as a major problem in rainfed upland and low land rice. Root knot nematode produced different type symptoms on rice like stunted growth, leaf yellowing and wilting during the hottest part of the day. The main symptom produced by root-knot nematode was gall formation. Galls on rice roots were club shaped. Different stages of Meloidogyne were identification primarily based on observations on morphology whereas, species identification of Meloidogyne was preliminarily done by perineal pattern. In present study, a pot experiment was conducted to test the efficacy of oil cake extract against rice root knot nematode. In this experiment, eight oil cakes viz. Neem, cotton, linseed, groundnut, sunflower, sesamum, mustard and mahua oil cake were taken. It was observed that many tested oil cake significantly reduced the galls/plant than compare to control. At 30 DAS, minimum galls/plant (0.78) was recorded in neem @ 50gm/5kg soil. Most of tested oil cakes were also increased the growth parameters (shoot length, root length, shoot weight and root weight) than compare to control. The nematicidal activity of extract of oil cakes was also tested against J2 of M. graminicola. At 5% concentration, maximum larval mortality (89%) was observed in linseed cake extract after 48 hours of inoculation. After 72 hours of inoculation, 100% larval mortality was observed in all tested cake extract. At 10% concentration, after 48 hours of inoculation, maximum larval mortality (100%) was observed in linseed cake extract followed by neem cake extract (99.67%). At 25% concentration, all tested oil cake extract were effective against J2 of M. graminicola with 100% larval mortality within 24 hours of inoculation. It can be concluded that oil cakes reduced the galls/plant and increased plant growth parameters (shoot length, root length, shoot weight and root weight). Kamal Khilari (Advisor) Abhishek Kumar (Author) | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810210684 | |
| dc.language.iso | English | |
| dc.pages | 111 | |
| dc.publisher | SARDAR VALLABHBHAI PATEL UNIVERSITY OF AGRICULTURE & TECHNOLOGY, MEERUT - 250 110 (U.P.), INDIA | |
| dc.sub | Plant Pathology | |
| dc.theme | Studies on Management of Root Knot Nematode (Meloidogyne graminicola) in Rice. | |
| dc.these.type | M.Sc | |
| dc.title | Studies on Management of Root Knot Nematode (Meloidogyne graminicola) in rice | |
| dc.type | Thesis |