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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(1): 1555-1569
DOI: https://doi.org/10.20546/ijcmas.2020.901.173


Screening of Different Bt Cotton Genotypes against Yellow Mite, Polyphagotarsonemus latus (Banks) and Biochemical Basis of Resistance
A. Biradarpatil1*, S. T. Prabhu2 and M. R. Ravikumar3
1Agricultural Entomology, University of Agricultural Sciences, Dharwad, Karnataka, India
2Department of Agricultural Entomology, College of Agriculture Hanumanamatti, University of Agricultural Sciences, Dharwad, Karnataka, India
3Department of Plant Pathology, College of Agriculture Hanumanamatti, University of Agricultural Sciences, Dharwad, Karnataka, India
*Corresponding author
Abstract:

Field trial was conducted for two consecutive years during kharif 2017 and 2018 at farmer`s field, Kadarmandalagi by using randomized block design (RBD). During kharif 2017, among the 20 genotypes screened indicated that lowest mean population of yellow mite and highest mean leaf hair density and trichome length were recorded in Chaitanya (MRC-7377) (0.29 yellow mite/ leaf) followed by Soumya (SRCH-55) and were superior to all the genotypes. While highest mean yellow mite population and least mean leaf hair density and trichome length were observed in Super fibre (KDCHB-407) (2.96 yellow mite/ leaf). During kharif 2018, two resistant and two susceptible genotypes were chosen based on performance during kharif 2017 for biochemical cgaracter analysis. Morphological characters like trichomes and trichome length and biochemical character phenol were recorded highest in resistant genotypes Chaitanya (MRC-7377) and Soumya (SRCH-55). While, susceptible genotypes Super fibre (KDCHB-407) and Surya (Namkot-803) were recorded lowest trichomes and trichome length and highest sugars and proteins.


Keywords: Cotton, Yellow mite, Genotypes, Morphological character, Biochemical character
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How to cite this article:

Biradarpatil, K. A., S. T. Prabhu and Ravikumar, M. R. 2020. Screening of Different Bt Cotton Genotypes against Yellow Mite, Polyphagotarsonemus latus (Banks) and Biochemical Basis of Resistance. Int.J.Curr.Microbiol.App.Sci. 9(1): 1555-1569. doi: https://doi.org/10.20546/ijcmas.2020.901.173