Corn rootworms (Chrysomelidae: Diabrotica spp.) are widespread maize (Zea mays L.) pests that can cause economic damage by consuming plant tissues, thus negatively affecting plant physiology and function (Riedell 1990; Riedell and Reese 1999), and grain yield (Sutter et al. 1990; Spike and Tollefson 1991). The majority of plant damage is caused by the subterranean larval stages, which can also ...

Aldose reductase (AR) inhibitors have a considerable therapeutic potential against diabetes complications and do not increase the risk of hypoglycemia. Through bioassay-guided fractionation of an EtOH extract of the kernel from purple corn (Zea mays L.), 7 nonanthocyanin phenolic compounds (compound 1-7) and 5 anthocyanins (compound 8-12) were isolated. These compounds were investigated by rat ...

Introduction In 2014, the top five genetically modified (GM) or transgenic crop producers were the United States, Brazil, Argentina, India, and Canada, together accounting for 90% of the global area of these crops (James, 2015). The United States has 40% of the area; Brazil, 23%; Argentina, 13%; India, 6%; and Canada, 6%. Although GM cultivars of 11 crops have been released, 4 crops cover 99% o...

land evaluation is the process of predicting the land use potential on the basis of its attributes. at the present study the qualitative land suitability evaluation was investigated for specific cereal crops including irrigated wheat (triticum aestivum l.), mays (zea mays l.) and cotton (gossypium herbaceum l.), based on fao land evaluation frame works (1976, 1983 and1985), climatic and soil re...

Fall armyworm, Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), infestations in most of North America north of Mexico arise from annual migrations of populations that overwinter in southern Texas and Florida. A comparison of the cytochrome oxidase I haplotype profiles within the fall armyworm corn-strain, the subgroup that preferentially infests corn (Zea mays L.) and sorghum (Sorg...

To test the hypothesis (Plant Physiology 59: 155-157) that monocotyledons contain a unique oligomycin-insensitive ATPase, we prepared submitochondrial particles and a soluble fraction from sonicated corn mitochondria (Zea mays L. cv. Earliking). Although the ATPase activity of the whole sonicate was relatively insensitive to oligomycin, the corn submitochondrial particles possessed an ATPase ac...

in order to investigate the effects of common lambsquarters (chenopodium album l.) competition on corn (zea mays l.) morphological and physiological characteristics, an experiment was conducted in 2005-2006 at the research station of agricultural faculty, ferdowsi university of mashhad, iran. the experimental design was split plot based on randomized complete block design (rcbd) with three repl...

A 2-yr field and laboratory study investigated insect resistance of the maize, Zea mays L., inbred Tex6, which has previously demonstrated resistance to Aspergillus ear rot and aflatoxin production, relative to susceptible inbred B73. Field studies indicated significantly greater resistance to insect feeding of V4-V8 growth stage Tex6 plants compared with B73 plants in both years, primarily to ...

Polygaiacturonase was found in pollen of the twelve monocotyledon species examined. The amount of polygaiacturonase ranged from 6.3 units/g in lily to 201 units/g in Johnsongrass. The C, species contained much more polygalacturonase than the C 8 species. The enzyme in corn (Zea mays L.) pollen was partially purified and characterized. It was optimally active at pH 5.3 and required Ca ~* for act...

The compositions of the germinable weed seedbank and aboveground weed communities in a long-term tillage and rotation study were characterized 4, 5, and 6 yr (2002 to 2004) after the adoption of glyphosate-tolerant corn and soybean. Averaged across rotation, mean germinable weed seed density and diversity were greatest in the no-tillage treatment as compared to the minimumand conventional-tilla...