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Current Trends in Science and Technology

an Open Access Publication ISSN: 0976-9730 | 0976-9498

Life Science

Role of 28-Homobrassinolide in Brassica Juncea after Meloidogyne Incognita Infection

Rohit Kalotra
W.NO.6, H.NO.15 Lane Bank of India, Court Road, Udhampur (J&K)-182101
Puja Ohri
Assistant Professor, Department of Zoology, Guru Nanak Dev University, Amritsar
Online First: January 06, 2018
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Abstract

The present study was undertaken to investigate the role of 28-homobrassinolide on the morphology of host plant, Brassica juncea during root knot nematode (Meloidogyne incognita) infection. The present study was envisaged to evaluate the effect of brassinosteroid on Brassica juncea during root-knot nematode infection. The changes caused in the root length, root weight, shoot length, shoot weight and presence/absence of galls were recorded. In case of root, root length showed an increase in inoculated and untreated plants (i.e. control II) as compared to uninoculated and untreated plants (control 1). While in treated plants, an overall significant decrease (F0.01=6.03) in root length was observed with increase in concentration when compared to control II. A similar trend was observed in case of root weight. In the controls, control II had higher root weight than control I and there was decrease in root weight of all the treated plants as compared to control II. There is presence of galls in two concentrations viz. 10-11, 10-9 and control II. In shoots, shoot length showed almost similar trend as that of root length. In the controls, nematode inoculated plants (control II) had higher shoot length than the uninoculated plants (control I). In HBl treated plants, an overall highly significant increase (F0.01=79.49) was observed with maximum shoot length recorded in 10-9M (9.66cm). While, the shoot weight showed the similar trend as that of root weight.

Keyword : 28-homobrassinolide, Brassica juncea, Meloidogyne incognita

  Submitted
Jan 6, 2018
Published
Jan 6, 2018
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