Impact of Bt- cotton on whitefly, Bemisia tabaci (Genn.) population

Impact of Bt- cotton on whitefly, Bemisia tabaci (Genn.) population

Genetically engineered cotton genotypes, Gossypium hirsutum L., (Bt-121, Bt-196, Bt-313, Bt-333, Bt-496, Bt-703, Bt-802, Bt-1524, Bt-3701, Bt-W1) were evaluated for their resistance against whitefly, Bemisia tabaci (Genn.), during the cropping seasons 2008 and 2009. In 2008, Bt-496 showed highest su...

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Veröffentlicht in:Pakistan journal of agricultural sciences 2010, Vol.47 (4), p.327-332
Hauptverfasser: Khan, M.A. (University of Agriculture, Faisalabad (Pakistan). Dept. of Entomology), Akram, W. (University of Agriculture, Faisalabad (Pakistan). Dept. of Entomology), Khan, H.A.A. (Bahauddin Zakariya Univ., Multan (Pakistan). Dept. of Entomology), Asghar, J. (University of Agriculture, Faisalabad (Pakistan). Dept. of Entomology), Khan, T.M. (University of Agriculture, Faisalabad (Pakistan). Dept. of Plant Breeding and Genetics)
Format: Artikel
Sprache:eng
Schlagworte:
BEMISIA TABACI
GENETICALLY MODIFIED ORGANISMS
GENOTYPES
GOSSYPIUM HIRSUTUM
LEAVES
PEST INSECTS
PEST RESISTANCE
PLANT MORPHOLOGY
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Zusammenfassung:Genetically engineered cotton genotypes, Gossypium hirsutum L., (Bt-121, Bt-196, Bt-313, Bt-333, Bt-496, Bt-703, Bt-802, Bt-1524, Bt-3701, Bt-W1) were evaluated for their resistance against whitefly, Bemisia tabaci (Genn.), during the cropping seasons 2008 and 2009. In 2008, Bt-496 showed highest susceptibility to B. tabaci (4.52 population/leaf) followed by Bt-121(3.55 population/leaf) and Bt-3701 (3.19 population/leaf) while all the remaining varieties were statistically at par having minimum population per leaf ranging from 1.97 to 2.75. In 2009, Bt-496 showed highest susceptibility to B. tabaci (4.97 population/leaf) followed by Bt-333 (4.25 population/leaf) while all the remaining varieties were statistically at par having population ranging from 2.09 to 3.59 per leaf except Bt-703 which showed highest resistance to B. tabaci (1.41/leaf).
ISSN:0552-9034