aventis gets short shrift over release of modified corn. 200011100697
a protective endophyte of maize: acremonium zeae antibiotics inhibitory to aspergillus flavus and fusarium verticillioides.the maize endophyte acremonium zeae is antagonistic to kernel rotting and mycotoxin producing fungi aspergillus flavus and fusarium verticillioides in cultural tests for antagonism, and interferes with a. flavus infection and aflatoxin contamination of preharvest maize kernels. chemical studies of an organic extract from maize kernel fermentations of acremonium zeae (nrrl 13540), which displayed significant antifungal activity against aspergillus flavus and f. verticillioides, revealed that the ...200516018316
new restriction fragment length polymorphisms in the cytochrome oxidase i gene facilitate host strain identification of fall armyworm (lepidoptera: noctuidae) populations in the southeastern united states.several restriction sites in the cytochrome oxidase i gene of fall armyworm, spodoptera frugiperda (j.e. smith), were identified by sequence analysis as potentially being specific to one of the two host strains. strain specificity was demonstrated for populations in florida, texas, mississippi, georgia, and north carolina, with an acii and saci site specific to the rice (oryjza spp.)-strain and a bsmi and hinfi site joining an already characterized mspi site as diagnostic of the corn (zea mays l ...200616813297
modeling the impact of alternative hosts on helicoverpa zea adaptation to bollgard cotton.for highly polyphagous cotton, gossypium hirsutum l., pests such as helicoverpa zea (boddie), a substantial portion of the larval population develops on noncotton alternative hosts. these noncotton hosts potentially provide a natural refuge for h. zea, thereby slowing the evolution of resistance to the bacillus thuringiensis berliner (bt)-derived cry1ac protein present in bollgard cotton. here, we demonstrate how the measured contribution of such alternative hosts can be included in estimating t ...200617195681
the fit between organic and pharma crops in north carolina. 200717287742
influence of preceding crop on wireworm (coleoptera: elateridae) abundance in the coastal plain of north carolina.three studies were conducted to determine the effect of preceding crop on wireworm (coleoptera: elateridae) abundance in the coastal plain of north carolina. in all three studies, samples of wireworm populations were taken from the soil by using oat, avena sativa l., baits. treatments were defined by the previous year's crop and were chosen to reflect common crop rotations in the region. across all three studies, eight wireworm species were recovered from the baits: conoderus amplicollis (gyllen ...201021309229
frequency of cry1f non-recessive resistance alleles in north carolina field populations of spodoptera frugiperda (lepidoptera: noctuidae).fall armyworm, spodoptera frugiperda (j.e. smith) (lepidoptera: noctuidae), is a target species of transgenic corn (zea mays l.) that expresses single and pyramided bacillus thuringiensis (bt) toxin. in 2014, s. frugiperda were collected from a light trap in north carolina, and a total of 212 f1/f2 isofemale lines of s. frugiperda were screened for resistance to bt and non-bt corn. all of the 212 isolines were susceptible to corn tissue expressing cry1a.105 + cry2ab, cry1f + cry1a.105 + cry2ab, ...201627119741
field evaluation of a model for predicting nitrogen losses from drained lands.the n simulation model, drainmod-n ii, was field-tested using a 6-yr data set from an artificially drained agricultural site located in eastern north carolina. the test site is on a nearly flat sandy loam soil which is very poorly drained under natural conditions. four experimental plots, planted to a corn (zea mays)-wheat (triticum aestivum l.)-soybean (glycine max.) rotation and managed using conventional and controlled drainage, were used in model testing. water table depth, subsurface draina ...201317071872
Displaying items 1 - 8 of 8