T. A. Pham, Department of Crop Sciences, National Soybean Research Center (NSRC), University of Illinois, Urbana; M. R. Miles, United States Department of Agriculture–Agricultural Research Service (USDA-ARS), NSRC, Urbana, IL 61801; R. D. Frederick, USDA-ARS, Foreign Disease-Weed Science Research Unit, Ft. Detrick, MD 21702; C. B. Hill, Department of Crop Sciences, NSRC, University of Illinois;...

Y. Balci, S. Balci, J. Eggers, and W. L. MacDonald, West Virginia University, Division of Plant and Soil Sciences, 1090 South Agricultural Sciences Building, Morgantown 26506; J. Juzwik, United States Department of Agriculture (USDA) Forest Service, Northern Research Station, St. Paul, MN 55108; R. P. Long, USDA Forest Service, Northern Research Station, Delaware, OH 43015; and K. W. Gottschalk...

V. D. Damsteegt, E. N. Postnikova, and A. L. Stone, Foreign Disease-Weed Science Research Unit, ARS, USDA, Frederick, MD 21702; M. Kuhlmann, University of Maryland, College Park; C. Wilson, University of Wisconsin, Madison; A. Sechler and N. W. Schaad, Foreign Disease-Weed Science Research Unit, ARS, USDA, Frederick, MD 21702; R. H. Brlansky, CREC, IFAS, UFL, Lake Alfred, FL 33850; and W. L. Sc...

Previously, Bradyrhizobium japonicum USDA 110 was shown to contain colony morphology variants which differed in nitrogen-fixing ability. Mannitol-utilizing derivatives L1-110 and L2-110 have been shown to be devoid of symbiotic nitrogen fixation ability, and non-mannitol-utilizing derivatives I-110 and S-110 have been shown to be efficient at nitrogen fixation. The objectives of this study were...

There are three economically important traits under the CUlTent U. S. Beef Grading System: the distribution and amount of intramuscular fat (or marbling), the subcutaneous fat thickness, and the ribeye muscle size. These traits are also major factors used in evaluating body composition for genetic improvement. The marbling scores are visually graded by certified inspectors under the current USD...

Yağış, etkileri en geniş olan iklim parametrelerinden biridir. Tüm yağışlar toprağa sızmaz; bir kısmı buharlaşabilir; başka yüzey akışına dönüşebilir. Depolanan suyun yalnızca kısmı, bitkinin terleme ihtiyaçlarını karşılamak için kökler tarafından alınır. Bu nedenle, etkin yağışı bilmek gerekmektedir. çalışma, yağış miktarını hesaplamak ve tahmini kullanılan farklı yöntemleri karşılaştırmak ama...