A simulation model of the population dynamics and genetics of western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), was created to evaluate the use of refuges in the management of resistance to transgenic insecticidal corn, Zea mays L., expressing one or two toxin traits. Hypothetical scenarios and a case study of a corn hybrid pyramided with existing toxins...

We analyze the rate of survival of hybrid seed corn in the U.S. market between 2000 and 2007 and ind that product characteristics and market structures have signi icant impacts. The results suggest that survival rates depend on spillover effects of learning regarding genetically modi ied seeds and close substitute seeds and that hybrids planted in the Corn Belt survive longer in the market than...

in order to evaluate the effect of different planting patterns and different varieties of corn on quantity management in 2015 as a split-plot in a randomized complete block with 3 replications. the test pattern as the main factor in two levels in the atmosphere and the stack corn hybrids in four sub-levels maxima, asv3, magi 704 and 400 were hybrids. the effect of planting pattern, the maximum ...

Based upon the most significant recent papers by Dr. Bush, Endless Horizons contains chapters on the following subjects: The inscrutable past. As we may think. A program for tomorrow. The war against disease. The public welfare. Renewal of scientific talent. Reconversion opportunities. The means to the end. Research on military problems. The control of atomic energy. Research and the war effort...

Abstract Sidedressing corn ( Zea mays L.) with liquid manure slurry via a hose application system was recently shown to be viable practice apply growing crop. However, little is known about what growth stage different hybrids can dragged before plant population and grain yield affected. A small‐plot field study conducted in 2019 2020 at both Saint Paul Waseca Minnesota evaluate the effect of dr...

Aim. To highlight the results of research conducted in 2020 – 2021 aiming at studying ffect multi-depth and multifraction sowing hybrid corn seeds DMS Sticker mid-early maturity group on yield when grown conditions Northern Steppe Ukraine determine economic efficiency approaches.Materials methods. Winter wheat was a predecessor crop study. Tillage methods related are described article. Herbicid...

In New York, the primary coccinellid in corn and sweet corn (Zea mays, L.) has historically beenColeomegillamaculata (DeGeer).However,Harmonia axyridis (Pallas)has alsobeen observed the last few years. The objectives of this study were to document the level of establishment of both species in corn and sweet corn and to understand their interactions. The temporal and within-plant distributions o...