root knot


Also found in: Encyclopedia.

root knot

n.
A disease of plants caused by nematodes and characterized by galls on the roots.

root′ knot`


n.
a disease of plants characterized by galls or knots on the roots and stunted growth, caused by any of several nematodes.
References in periodicals archive ?
The objective of the present study was to investigate the effect of application of plant growth- promoting rhizobacteria and urea fertilizer, individually and in combination with each other, on tomato growth parameters and the reproduction rate of root knot nematode (M.
Phenylalanine ammonia-lyase activity in Lycopersicon esculentum roots infected and resistant to the root knot nematode, Meloidogyne incognita.
Ecofriendly management of root knot nematodes Meloidogyne incognita (Kofoid and White)Chitwood using different greenleafmanureson tomato under field conditions.
Root knot nematodes have a broad host range and may be a problem for various crop sequence alternatives.
Red plastic mulch is making life miserable for root knot nematodes in South Carolina tomato fields.
Among plant parasitic nematodes, root knot nematodes are the major problem for vegetables including eggplant.
Our results show that root weight is poor parameter to assess the effects of root knot nematode to correlate with foliage growth.
There is no more information available on mode of spread of pathogen, predisposing factor for fungal pathogen, Root knot nematode infestation, their reproduction, symptom and interaction between Ceratocystis fimbriata and Meloidogyne incognita, hence the study was conducted.
Root knot nematodes are considered to be the most important contributors of soil sickness because of continuous monocropping of aerobic rice, followed by fungi, and other micro- organisms.
It has shatter resistance, broad resistance to soybean cyst nematode (SCN, Heterodera glycines Ichinohe), and resistance to southern root knot nematode [Meloidogyne incognita (Kofoid & White) Chitwood].
He says breeders worldwide are also using the peppers as sources of resistance against root knot nematodes.
All fungi proved to be efficient in reducing final population of northern root knot nematode M.