2010 Winter Wheat Variety Yield Results and Planting Tips

Conditions were very dry for planting last September for the western and central part of the state. And while there were good rains in early October, the cold temperatures led to a slow start for the wheat. Fortunately November was warmer than average, which allowed most locations to get decent fall growth. The northwest part of the state suffered a hard freeze on May 8th causing some freeze injury to the crop. Spring and early summer conditions were wet for most of the state, favoring increased disease pressure. The north central part of South Dakota was dry in June, which caused some drought stress in those areas. Harvest was hampered by rainy and humid conditions in July and early August. This made it difficult to get the grain dry enough to harvest and frequent rains on the ripe grain caused lower test weights in some areas. Yields from the Crop Performance Testing Program averaged 59 bu/A statewide, ranging from 28 bu/A at Bison to 84 bu/A at Selby. The results for Winner and Martin are not reported due to heavy weed pressure at Winner and high yield variation at Martin. Locations with higher than ideal trial variation (CV\u3e14) were Bison (dry fall, freeze injury), Kennebec (cheatgrass), Brookings non-intensive (disease pressure) and Beresford (storm damage). The top performing varieties at East River locations in 2010 were Expedition, Art, Settler CL, Overland and Lyman; while Hatcher, Lyman, Wesley, Camelot, Millennium and Wahoo did the best in West River locations. The varieties Overland, Expedition, Smoky Hill, Lyman, Wendy, Millennium, Wesley and Darrell had the best three-year statewide average yields. 2011 variety recommendations are included in this publication. Changes include: dropping NuDakota (not tested in 2010) and Arapahoe (poor yield performance) from the recommendations moving Harding down from the recommended to the acceptable/promising list, moving Lyman and Smoky Hill up from the acceptable/promising to the recommended list and adding Art and Settler CL to the acceptable/ promising list

EC01-107 Nebraska Proso, Sunflower, Pulse Crop, Amaranth, Oat and Spring Wheat Variety Tests 2001

This circular is a progress report of spring small grain trials grown throughout Nebraska, and proso, amaranth, sunflower, and pulse crop variety trials conducted by the Panhandle Research and Extension Center, Scottsbluff, and the High Plains Agricultural Laboratory, Sidney. Conduct of the experiments and publication of results is a joint effort of the Agricutlural Research Division and the Cooperative Extension Service

Establishment and Persistence of Yellow-Flowered Alfalfa No-Till Interseeded into Crested Wheatgrass Stands

Crested wheatgrass [Agropyron cristatum (L.) Gaertn., A. desertorum (Fisch. ex Link) Schult., and related taxa] often exists in near monoculture stands in the northern Great Plains. Introducing locally adapted yellow-flowered alfalfa [Medicago sativa L. subsp. falcata (L.) Arcang.] would complement crested wheatgrass. Our objective was to evaluate effects of seeding date, clethodim {(E) -2-[1-[[(3-chloro-2-propenyl)oxy]imino]propyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one} sod suppression, and seeding rate on initial establishment and stand persistence of Falcata, a predominantly yellow-flowered alfalfa, no-till interseeded into crested wheatgrass. Research was initiated in August 2008 at Newcastle, WY; Hettinger, ND; Fruitdale, SD; and Buffalo, SD. Effects of treatment factors on plant frequency during initial establishment were influenced by site environments. Late summer and spring were suitable seeding dates. Clethodim sod suppression increased seedling frequency in most cases. Seedling frequency increased as seeding rate increased from 0.56 to 7.84 kg pure live seed (PLS) ha–1. Specific seeding dates, clethodim sod suppression, and high seeding rates did not greatly improve initial establishment when site environments were poor. Residual effects of seeding date and sod suppression post establishment were not significant at most locations, but seeding rate effects were evident. Initial establishment and persistence of Falcata alfalfa was successful at Newcastle, indicating that interseeding in late summer or spring using low seeding rates (≤3.36 kg PLS ha–1) without clethodim can be effective. Assessing grass canopy cover, soil texture, and management (e.g., haying) is necessary to determine the suitability of crested wheatgrass sites for interseeding