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Evaluation of Sexual Dimorphism in Aleyrodes proletella (Linnaeus), Bemisia tabaci (Gennadius), Dialeurodes delhiensis David and Sundararaj and Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae)

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Title Evaluation of Sexual Dimorphism in Aleyrodes proletella (Linnaeus), Bemisia tabaci (Gennadius), Dialeurodes delhiensis David and Sundararaj and Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae)
M.Sc.
 
Creator MOHAMMED MUZERUDDIN BAIG
 
Contributor V.V. Ramamurthy
 
Subject animal developmental stages, eggs, biological phenomena, fruits, planting, sexual reproduction, vegetables, bemisia tabaci, polymorphism, developmental stages
 
Description Whiteflies (Hemiptera: Aleyrodidae) are one among the economical
important pests threatening agricultural, horticultural and forest crops. These
reproduce sexually or parthenogenetically. Generally female population is higher
than males. So, to discriminate the sexes at fourth instar or puparial stage is of great
importance and also challenging task. The present study aimed to evaluate sexual
dimorphism in puparia of four whitefly species viz. Aleyrodes proletella (Linnaeus),
Bemisia tabaci (Gennadius), Dialeurodes delhiensis David and Sundararaj and
Trialeurodes vaporariorum (Westwood) using multivariate analysis such as PCA,
CDA and DFA and univariate analysis like z-test: two sample for means using a set
of ten characters. The already known characters (length and breadth) of significance
in demarcating the sexes were evaluated with eight additional characters.
Morphologically no distinction but morphometrics showed that female puparia are
larger than male puparia suggesting that dimorphism in whiteflies is size correlated.
Univariate analysis showed female dominance (p
 
Date 2016-03-17T18:15:36Z
2016-03-17T18:15:36Z
2013
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/65226
 
Language en_US
 
Format application/pdf
 
Publisher IARI, DIVISION OF ENTOMOLOGY,NEW DELHI