EFFECT OF DIFFERENT TRANSPLANTING TIMES ON THE REPRODUCTION FACTOR OF MAJOR PLANT PARASITIC NEMATODES IN BRINJAL RHIZOSPHERE

G.H. MANASA¹, G.H. MANAVI², N. UMASHANKAR KUMAR³*, VENKATESH JAVALI⁴, G.C. SHARMA^5
1Department of Nematology, Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, 173230, Himachal Pradesh, India
²Assistant Horticulture Officer, Department of Horticulture, Alur, Hassan, 573213, Karnataka, India
³Department of Plant Pathology, College of Agriculture, Hassan, 573213, University of Agricultural Sciences, Bengaluru, 560065, Karnataka, India
⁴Assistant Manager of Feed and Fodder, Raichurbellari and Koppal Milk Unio, Ballari, 583101, Karnataka, India
⁵Principal Scientist, Department of Entomology, Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, 173230, Himachal Pradesh,India
* Corresponding Author : umapathologist@gmail.com

Received : 16-03-2019     Accepted : 27-03-2019     Published : 30-03-2019
Volume : 11     Issue : 6       Pages : 8131 - 8133
Int J Agr Sci 11.6 (2019):8131-8133

Keywords : Brinjal, Plant parasitic nematodes, Dates of sowing
Academic Editor : Santhosh D B, Nagaraja M S
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Department of Nematology, Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, 173230, Himachal Pradesh, India
Author Contribution : All authors equally contributed

An experiment was conducted under field condition, with the variety Pusa Purple Long. There were five transplanting times viz., 5th April, 20th April, 5th May, 20th May and 4th June of 2016.Reproduction factor (multiplication rate) of root-knot nematode (M. incognita) J2 and spiral nematode (H. dihystera) were found decreased and increased in early transplanted crops, (early April-late April), respectively and vice-versa in late transplanted crops (early May-early June). Minimum multiplication rate of M. incognita was recorded in early April transplanted crop (reproduction factor 1.3), while it was maximum (reproduction factor 9.5) in early May crop. Contrary to this H. dyhistera was found with highest multiplication rate (12.0) in early April crop, and minimum (7.2) in early May crop.

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