Decreased agricultural diversity from extensive use of the corn (Zea mays L.)- soybean (Glycine max (L.) Merr.) rotation and occasional inclusion spring wheat (Triticum aestivum L.), has threatened cropping system sustainability. Using specialty oilseeds crops to extend corn-soybean might improve yields promote We tested whether corn, soybean, would be improved in a following oilseed versus or ...

In the US Corn Belt, a recent doubling in commodity prices has created incentives for landowners to convert grassland to corn and soybean cropping. Here, we use land cover data from the National Agricultural Statistics Service Cropland Data Layer to assess grassland conversion from 2006 to 2011 in the Western Corn Belt (WCB): five states including North Dakota, South Dakota, Nebraska, Minnesota...

Aflatoxin contamination of corn is an important problem internationally, particularly in tropical and subtropical conditions that favor infection and synthesis by Aspergillus. Environmental conditions (drought) and agronomic practices i.e. N fertilization have been reported as favorable to aflatoxin synthesis in the field. This study was undertaken to investigate whether the contamination of co...

The Midwest is reeling from an infestation of corn blight. Over 200 farms in Iowa alone have reported infections. Plant pathologists note that the pattern of infestation is inconsistent with a natural outbreak since the infections occurred in many places at once and were found in farms along major interstate highways. Scientists found that the infecting strain is identical to one found in Asia....

Sufficient vitamin A is not provided by a diet based mainly on corn Association mapping, validated by linkage mapping and expression studies, has been used to boost the nutritional value of corn. Corn, or maize, is a staple crop for many people in developing countries, but lacks sufficient micronutrients to provide a balanced diet by itself, particularly for growing children. Corn contains caro...

Brazil ranked second only to the United States in hectares planted to genetically modified crops in 2013. Recently corn producers in the Cerrado region reported that the control of Spodoptera frugiperda with Bt corn expressing Cry1Fa has decreased, forcing them to use chemicals to reduce the damage caused by this insect pest. A colony of S. frugiperda was established from individuals collected ...

In late 2002, the U.S. Department of Agriculture (USDA)’s Animal and Plant Health Inspection Service (APHIS), the agency that regulates field release of genetically engineered (transgenic) plants, found that the biotechnology company ProdiGene, Inc. failed to follow government regulations for growing genetically modified (GM) corn (Zea mays), engineered to produce a specialty pharmaceutical pro...

The efficacy of fallow and coastal bermudagrass (Cynodon dactylon) as a rotation crop for control of root-knot nematode (Meloidogyne incognita race 1) and soilborne fungi in okra (Hibiscus esculentus cv. Emerald), squash (Cucurbita pepo cv. Dixie Hybrid), and sweet corn (Zea mays cv. Merit) was evaluated in a 3-year field trial. Numbers of M. incognita in the soil and root-gall indices were gre...

Densities of the root-knot nematode, Meloidogyne incognita (Kofoid and White) Chitwood,were compared following summer crops of tropical corn (Zea mays L.) and sorghum (Sorghum bicolorL.) at several locations in north Florida. Densities of M. incognita remained low soil) following the sorghum cultivars DeKalb FS25E and DeKalh BR64 and the sorghum­ sudangrass (S. sudanense [Piper] Stapf) hybrid D...

The use of crop practices to reduce the weed community is an ally integrated management. Given this, study aimed identify a composition and infestation in soybean area under different predecessor crops implanted years. experiment was carried out 2019/2020 harvest Dourados, MS. experimental design randomized block with nine treatments. treatments were composed autumn-winter crops. cultivation: c...