نتایج جستجو برای: bollworms
تعداد نتایج: 92 فیلتر نتایج به سال:
Differences in larval survival and development of bollworm, Helicoverpa zea (Boddie), and fall armyworm, Spodoptera frugiperda(J.E. Smith), respectively,were found toexist among commercially available Cry1A(c) transgenic Bacillus thuringiensis Berliner (Bt) varieties. Using a quantiÞcation assay (ELISA) to measure the levels of d-endotoxin in two of these varieties (ÔDP 451B/RRÕ and ÔNuCOTN 33B...
Monsanto’s Bt-cotton NC 33B, planted in northern China for more than one decade, effectively controls cotton bollworms; however the understanding of its potential effects on soil microorganisms is limited. The dynamics of eubacterial, fungal and actinomycetes population sizes in rhizosphere soil of the Bt cotton were analysed by realtime PCR (qPCR) at the different growth stages under field con...
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