Morphometric Variations in Cassava ( Manihot esculenta Crantz) Whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) from different Agro-Ecological Zones of Kerala, India

Authors

  • E R Harish CTCRI
  • Mani Chellappan
  • T Makesh Kumar
  • M T Ranjith
  • A R Ambavane

Keywords:

Bemisia tabaci, cassava, genetic groups, agro-ecological zones, morphometry, principal component analysis.

Abstract

The silverleaf whitefly,Bemisia tabaci,is the main limiting factor in the production of one of the mostimportant tuber crops in the world, cassava. The cassava mosaic virus transmitted by the insectcauses cassava mosaic disease and it accounts for about 40% reduction in the tuber yield. Thepresent study evaluates the presence of different genetic groups, using morphometric variationsamong whitefly populations collected from all agro-ecological zones of Kerala, India. Studying fourteendifferent pupal characters and nine different adult characters could not establish significant variationsin most of the characters studied, between these agro-ecological zones. But, the principal componentanalysis revealed the presence of more variations in populations collected from Sulthan Batherycompared to others. Further molecular studies using the populations could provide a clear cut ideaabout the presence of different genetic groups/ biotypes in these regions.

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Published

2017-05-06

How to Cite

Harish, E. R., Chellappan, M., Makesh Kumar, T., Ranjith, M. T., & Ambavane, A. R. (2017). Morphometric Variations in Cassava ( Manihot esculenta Crantz) Whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) from different Agro-Ecological Zones of Kerala, India. JOURNAL OF ROOT CROPS, 42(2), 90–102. Retrieved from https://journal.isrc.in/index.php/jrc/article/view/423

Issue

Vol. 42 No. 2 (2016): Journal of Root Crops, Vol 42(2)

Section

Research Articles

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