Incidence and host parasite relationship of root- knot nematode, Meloidogyne incognita (Kofoid and White) Chitwood in horticultural crops under protected cultivation
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Date
2015
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Publisher
CCSHAU
Abstract
Studies on the Incidence and host parasites relationship of root-knot nematode, Meloidogyne incognita
(Kofoid and White) Chitwood in horticultural crops under protected cultivation.
Survey of polyhouses grown with horticultural crops in Hisar, Sirsa and Fatehabad districts revealed
48.0%, 53.8% and 48.0% frequency of occurrence of root-knot nematode, Meloidogyne incognita.
Inoculum level of 1,000 J2/kg soil in all the three crops viz., gerbera, capsicum and strawberry grown
under screen house and polyhouse conditions. However, the capsicum was more vulnerable to
Meloidogyne incognita in comparison to gerbera and strawberry.
On capsicum, root-knot nematode completed its life cycle in 40 and 35 days, respectively, under screen
house and polyhouse conditions. Nematode took 45 days under screen house and 40 days in polyhouse
for completion of its life cycle on gerbera. On strawberry, in polyhouse as well as screen house,
nematode failed to penetrate when crop was transplanted in mid November. However, penetration and
development took place when crop was transplanted in the month of March
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Keywords
livestock, seasons, yields, summer, purification, biological phenomena, breeds (animals), lactation, organic compounds, animal husbandry