Sumintary. A spring wheat (Triticumo aestivumin) and(I anl obligate winter wheat (Triticumt compactutm) variety were each grown for 5 weeks in controlled environments at 20 and 250. The threshold for flower induction in the winter wheat was 4 to 5 weeks at 20, whereas the spring wheat had no low temperature requirement for flowering. Changes in the levels of carbohydrate and nitrogen fractions ...

A spring wheat (Triticum aestivum) and an obligate winter wheat (Triticum compactum) variety were each grown for 5 weeks in controlled environments at 2 degrees and 25 degrees . The threshold for flower induction in the winter wheat was 4 to 5 weeks at 2 degrees , whereas the spring wheat had no low temperature requirement for flowering. Changes in the levels of carbohydrate and nitrogen fracti...

Weaned bison bull calves were randomly assigned to four feedlot diets in a 4 treatment by 4 periods Latin square study. The feeding periods were 80 days long during spring, summer, fall, and winter. The four dietary treatments were identified based on major ingredients in each ration: 1) wheat screenings, 2) wheat middlings, 3) crambe meal, and 4) a commercial bison ration. Winter gains were lo...

Journal of Plant Registrations, Vol. 3, No. 3, September 2009 269 Grain protein concentration (GPC) has a major impact on the end-use quality of bread products made with fl our extracted from hard wheat (Triticum aestivum L.) grain; therefore, this trait is typically a high priority in wheat improvement efforts aimed at improving bread-making quality. Due to improved profi t potential compared ...

2005 (1) The wheat stem sawfly Cephus cinctus Norton (Hymenoptera: Cephidae; Fig. 1), is a major pest of spring wheat in the southern Canadian prairies and the northern plains of the United States (Weiss and Morrill 1992; Fig. 2). In the Canadian population, which is adapted to spring wheat, oviposition occurs in late June and early July when the female (Fig. 3) inserts an egg into the elongati...

The phenological development of cereal crops from emergence through flowering to maturity is largely controlled by temperature, but also affected by day length and potential physiological stresses. Responses may vary between species and varieties. Climate change will affect the timing of cereal crop development, but exact changes will also depend on changes in varieties as affected by plant bre...

Nitrogen fertilizer is commonly applied to winter wheat in the High Plains to achieve moderate to high yields. Typically, anhydrous N is applied in the summer or early fall with a tillage operation. Some growers apply liquid N in the spring if winter and spring moisture are high to take advantage of higher yielding condition. Phosphate fertilizer is less frequently used on winter wheat than N f...

Imidazolinone-resistant (IR) wheat (Triticum aestivum L.) was released for commercial production in portions of the USA in 2002 and has provided growers with a new technology to selectively control winter annual grass weeds. Imidazolinone herbicides inhibit acetolactate synthase (ALS) in susceptible plants; however, IR wheat has an altered target site which confers resistance to these herbicide...

Soil nematode community response to treatments of three, four-year crop rotations (spring wheat-pea-spring wheat-flax, spring wheat-green manure-spring wheat-flax, and spring wheat-alfalfa-alfalfa-flax) under conventional and organic management, and native tall grass restoration (restored prairie) were assessed in June 2003, and July and August 2004. The research site was the Glenlea Long-term ...

Spring wheat is cultivated early in the spring in moderate climatic areas or cultivated late in the winter when freezing period is over. To understand plant's response to the cold stress, former studies have led researchers to the identification of several proteins either in wheat or in other plants. In order to achieve further information regarding with the mechanism of spring wheat response t...