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Asian Journal of Nematology
Year: 2014  |  Volume: 3  |  Issue: 1  |  Page No.: 15 - 20

Effect of Different Inoculum Levels of Meloidogyne incognita on Growth and Biochemical Parameters of Vigna radiata

Abbasi and Hisamuddin    

Abstract: The experiment was carried out to study the effect of Meloidogyne incognita on growth and biochemical parameters of a leguminous plant viz., Vigna radiata cv. PDM 139 under green house conditions by inoculating with different inoculum levels i.e., 0 (control), 200, 400, 800 and 1,600 second stage juveniles per 1.5 kg of soil/pot. With the increase in inoculum level of M. incognita, there was a progressive decrease in growth and biochemical parameters of the crop. Significant (p≤0.05) reduction in plant length, fresh and dry weight, leaf area, chlorophyll, seed protein, nitrogenase and leghaemoglobin contents in the root nodules at 400 J2, while at higher inoculum levels i.e., 800 J2 and 1,600 J2, the reduction was more pronounced and significant at p≤0.01, level.

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