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Journal of Entomology and Zoology Studies
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P-ISSN: 2349-6800, E-ISSN: 2320-7078

Journal of Entomology and Zoology Studies

2020, Vol. 8, Issue 1
Interaction effect of root-knot nematode, Meloidogyne incognita and vesicular arbuscular mycorrhizal fungus on chlorophyll and sugar content of resistant and susceptible cultivars of tomato

Mukesh Kumar Patra and Dhirendra Kumar Nayak

Study of biochemical characterization of shoots and roots of four tomato cultivars, Banki Local (Resistant), Kashi Aman (Moderately resistant), Utkala Dipti (Susceptible) and Utkala Kumari (Highly susceptible) grown under sterile, Meloidogyne incognita and Glomus fasciculatum inoculated soil both individually and in combinations revealed that post inflectional increase in chlorophyll ‘a’, ‘b’ and total in G. fasciculatum inoculated leaves and that of decrease in M. incognita and M. incognita + G. fasciculatum inoculated leaves over check. Decrease of chlorophyll content was maximum in highly susceptible variety Utkala Kumari (chl a-80.35%, chl b- 76.79%, Total chl- 78.19%) and that of minimum in resistant variety Banki local (chl a-10.98%, chl b- 8.48%, total chl- 9.62%) in nematode inoculated plant over check. There was decrease in total sugar content of shoot in T1 having 10.57%, 22.49%, 43.63% and 52.73% & increase in root having 14.04%, 26.29%, 62.22% and 75.72% in Banki local, Kashi Aman, Utkala Dipti and Utkala Kumari respectively compared to untreated check (T6). Percent decrease of starch content in shoot was maximum in T3, followed by T5, T4, and that of T2 over check. Maximum accumulation of starch was marked in the roots of T3, T4 and T5 where both nematode and VAM were inoculated than T1 over check. Comparing T3, T4 and T5 maximum decrease of reducing sugar in shoot was observed in T3 followed by T5 and T4 in all varieties over check. In T1 maximum increase of reducing sugar in root was seen in Utkala Kumari (73.15%) followed by Utkala Dipti (65.53%), Kashi Aman (24.34%) and minimum in Banki Local (10.29%).
Pages : 55-62 | 663 Views | 100 Downloads


Journal of Entomology and Zoology Studies Journal of Entomology and Zoology Studies
How to cite this article:
Mukesh Kumar Patra, Dhirendra Kumar Nayak. Interaction effect of root-knot nematode, Meloidogyne incognita and vesicular arbuscular mycorrhizal fungus on chlorophyll and sugar content of resistant and susceptible cultivars of tomato. J Entomol Zool Stud 2020;8(1):55-62.
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