Vol. 11, Issue 3 (2022)

Author(s):
BS Chandrawat, AK Meena, Anushka Gurjar, Monika Meena, Raju Dhayal, Kavita Choudhary, Hemraj Gurjar, SK Goyal and Mahabeer Singh

Abstract:
An investigation was conducted in green house condition to find out the effects of different inoculum levels of Meloidogyne javanica on plant growth of tomato and nematode multiplication. After establishment of seedlings 2^nd stage juveniles of M. javanica were inoculated in the root zone at the rate of 0, 10, 100, 1000 and 10,000 larvae per plant. Significant reduction was shown in the plant growth parameters viz. shoot length, shoot weight, root length and root weight with increase the inoculum levels of M. javanica. The highest number of galls and egg masses was recorded at inoculums levels of 10000. Total nematode population per plant significantly increased progressively with an increase in nematode inoculum level from 10 to 10000 larvae per plant. The number of eggs and larvae per egg mass were decreased with an increase in inoculum level.