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Influence of root-knot nematode, Meloidogyne incognita (Kofoid & White) Chitwood infection on different plant growth parameters in Mungbean, Vigna radiata (L.) Wilczek

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Title Influence of root-knot nematode, Meloidogyne incognita (Kofoid & White) Chitwood infection on different plant growth parameters in Mungbean, Vigna radiata (L.) Wilczek
 
Creator Waghmare, Chandramani D.
Pankaj
Paul, Sangeeta
Sharma, HK
 
Subject Chlorophyll
Green gram
Nematode inoculum
Nitrogenase
Southern root-knot nematode
 
Description 351-359
Root-knot nematode, Meloidogyne incognita (Kofoid & White) Chitwood, is a major threat to mungbean cultivation. The
pest causes a significant reduction in plant growth parameters that ultimately results in loss of grain yield. The present study
was carried out under glass house condition to study the effect of different inoculum load of root-knot nematode
M. incognita on plant growth, nodulation and nematode development and nutrients status of Mungbean. The results revealed
a progressive decline in plant growth parameters viz., fresh and dry shoot weight and shoot length with respect to increase in
inoculum level. However, fresh and dry root weight showed the opposite trend. The fresh and dry shoot weight was
decreased by 44% and 66%, respectively at 4 J2s/g soil. The chlorophyll content in the leaves also decreased with the
increase of inoculum level from 100-6000 J2s/pot. Nutrients contents of the plant viz. N, P, K, Ca and Mg were significantly
reduced in shoots while in roots these was increased with an increase of inoculum levels. Nodulation was affected by 80% at
the highest inoculum level i.e. 6000 J2s/pot. Also leghaemoglobin, bacteroid content and nitrogenase activity was reduced
progressively with increased levels of nematode inoculum. Thus, the root-knot nematode, M. incognita interferes with the
process of symbiotic nitrogen fixation between mungbean host and rhizobium and that can affect the quality of produce.
 
Date 2022-05-02T11:06:21Z
2022-05-02T11:06:21Z
2022-05
 
Type Article
 
Identifier 0975-1009 (Online); 0019-5189 (Print)
http://nopr.niscair.res.in/handle/123456789/59636
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJEB Vol.60(05) [May 2022]