STUDIES ON ROOT-KNOT NEMATODE, Meloidogyne incognita INFESTING LENTIL CROP
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Date
2022
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DRPCAU, PUSA
Abstract
Lentil (Lens culinaris Medik.) is one of the versatile rabi pulse crop and a
member of the Leguminosae family. It is one of the utmost preferred legumes for the
reason that it’s great regular protein content and also has cooking characteristics
(Raghuvanshi & Singh, 2009). The root-knot nematode is a significant issue that
destroys lentil crops severely all over the world.
The experiment was assessed the pathogenicity of lentil crop at various
inoculum levels, (10,100,1000,10000 J2/plant) revealed that the maximum shoot
length was noted in uninoculated seedlings at 10 days of age is 36.2 cm (check) and
the minimum shoot length was noted in the inoculated seedlings is 18.3 cm (10000
J2/kg soil). The largest number of galls per seedling 65.33 was recorded at an
inoculum level of 10000 infective juveniles per kg of soil. Thus, it was determined
that the 10 days old seedlings are more vulnerable than seedlings that are 20 days old,
and regardless of the age of the plant, a 1000 J2 inoculum level soil was determined to
be pathogenic in a per kg soil.
A screening experiment was undertaken to identify a source of M. incognita,
resistance to various cultivars of lentils. The Kotam-1 and Kotam-2 cultivars,
followed by RVL-11-6, had the highest plant growth parameters among the sixteen
cultivars, while local cultivars like L-4717 and L-4727 had the lowest plant growth
parameters.
The intent of the present experiment was to found the effectiveness of
various organic additives & botanicals against Meloidogyne incognita. Neem cake
and mustard cake were shown to be the most efficient at controlling the root-knot
nematode. The mustard cake comes in second, as evidenced by all plant development
indices. Neem cake @10% per pot clearly outperforms mustard cake in terms of plant
growth indices for root-knot nematode management. Organic amendments were
producing good outcomes as compared to botanicals.