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EFFECT OF ROOT-KNOT NEMATODE, Meloidogyne incognita AND ITS MANAGEMENT ON NODULATION IN MUNGBEAN (Vigna radiata)
KrishiKosh
View Archive Info| Field | Value | |
| Title |
EFFECT OF ROOT-KNOT NEMATODE, Meloidogyne incognita AND ITS MANAGEMENT ON NODULATION IN MUNGBEAN (Vigna radiata)
M Sc |
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| Creator |
WAGHMARE CHANDRAMANI DATTATRAYA
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| Contributor |
H.K. Sharma
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| Subject |
planting, root nodulation, vegetative propagation, biological phenomena, application methods, oils, plant extracts, biological development, sowing, chlorophylls
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| Description |
T-8424
An investigation was carried out to find the effect of inoculum levels J2 of root-knot nematode, Meloidogyne incognita on plant growth, nutrition status of mungbean plants, development of nematode and nodulation under pot conditions. Results revealed that there was decline in plant growth viz., fresh and dry shoot weight and shoot length with the increase of inoculum levels. However, the root weight, dry and fresh showed opposite trend. The fresh and dry shoot weight decreased by 44 and 66 % respectively. There was also decline in the chlorophyll content in leaves with the increase of inoculum levels. With regards to nutrition status of plant, N, P, K, Ca and Mg significantly reduced in shoots and increased in roots with increase of inoculum levels. Nodulation was affected by 80 % at the highest inoculum level. However, leghaemoglobin, bacteroid content and nitrogenase activity were reduced progressively with increased nematode infection. Management of root knot nematode with carbofuran @1 & 2 kg a. i./ha, Trichoderma harzianum @1 & 2 % w/w and neem seed oil as seed treatment of mungbean against M. incognita was carried out and observation were recorded on the number and function of nodules, chlorophyll content, plant growth and nematode multiplication. It was observed that neem oil treatment had positive effect on nodule functioning and formation. Nutrition status of plant revealed that shoot has better content nutrition such as N, P, K, Ca and Mg, while root has lower level of these elements than the inoculated control plant. Treatments had improved nutrition level of plant. Neem oil was best in giving highest nutrition to both in shoot and root of plant. Plant growth was better with neem oil while carbofuran had minimum plant growth though better than the treated inoculated control plant. Consequently the yield of plant in term of number and weight of pod per plant was translated higher than the other treatments. Nematode reproduction indicated that number of galls, egg mass were least with carbofuran followed by neem oil and bioagent. Similarly, reproduction factor was affected. Visible radiation reflectance pattern of both the experiments showed that reflectance was higher in treatments with low chlorophyll content and vice versa. |
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| Date |
2016-11-03T15:14:47Z
2016-11-03T15:14:47Z 2011 |
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| Type |
Thesis
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| Identifier |
http://krishikosh.egranth.ac.in/handle/1/83720
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| Format |
application/pdf
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| Publisher |
IARI, DIVISION OF NEMATOLOGY
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