Vol. 12, Issue 3 (2023)

Author(s):
Balkishan Chaudhary, Jayant Bhatt and Dinesh Singh Dhurwey

Abstract:
Root-knot nematode is a major threat to pea cultivation. The pest causes a significant reduction in plant growth parameters that ultimately results in loss of yield. The experiment was carried out to study the pathogenicity of Meloidogyne incognita on plant growth parameters and nematode development of pea (Cv. Kashi Nandini) under glass house conditions by inoculating different inoculums levels i.e. 0 (control), 10, 100, 1000, 10,000 second stage juveniles (J₂) of M. incognita along with supernatant. The results revealed that the increase in inoculum level of M. incognita, there was a progressive decrease in growth parameters of the crop as the levels of inocula increased. Significant reduction in plant height, root length and fresh and dry weights of roots and shoots were declined. Maximum galls, egg masses and eggs per egg mass were recorded more pronounced and significant reduction was observed at higher inoculum levels i.e. 1000 and 10,000 J₂/pot.