Experiments were conducted in 2020 and 2021 North Dakota to determine the effects of foliar soil applied fertilizers, variety irrigation on yield grain quality spring wheat. Foliar application N did not consistently increase protein indicating levels adequate optimize yield. The Bolles had higher content than Faller. Zinc (Zn) was greatest when at either flowering or post anthesis. It also foun...

Opportunities exist for replacing reduced height (Rht) genes Rht-B1b and Rht-D1b with alternative dwarfing genes, such as the gibberellin-responsive gene Rht12, for bread wheat improvement. However, a comprehensive understanding of the effects and mode of action of Rht12 is lacking. In the present study, the effects of Rht12 were characterized by analyzing its effects on seeding vigour, seedlin...

Drought is a major abiotic factor adversely affecting wheat productivity. Water deficit reduces significantly photosynthesis and hence the remobilization of stored assimilate reserves from stem becomes important sources for grain filling. We assessed ability different internodes leaf sheaths to deposit remobilize reserve assimilates as well their role in yield formation 6 winter varieties under...

In wheat, flag leaf, stem, chaff and awns contribute to grain filling through photosynthesis and/or re-mobilization. Environmental and genetic effects on the relative contribution of each organ were examined by analyzing the consequences of sink-source manipulations (shading and excision) and by comparing carbon isotope discrimination (Δ) values in dry matter (at maturity) and sap (two weeks af...

Rice paddies are a major source of anthropogenic nitrous oxide (N2O) emissions, especially under alternate wetting-drying irrigation and high N input. Increasing photosynthate allocation to the grain in rice (Oryza sativa L.) has been identified as an effective strategy of genetic and agronomic innovation for yield enhancement; however, its impacts on N2O emissions are still unknown. We conduct...

The distribution patterns of total protein and protein components in different layers of wheat grain were investigated using the pearling technique, and the sources of different protein components and pearling fractions were identified using (15)N isotope tracing methods. It was found that N absorbed from jointing to anthesis (JA) and remobilized to the grain after anthesis was the principal so...

Intercropping often results in increasing production than sole per unit land area, but theunderlying mechanisms are poorly understood. Plants showed different physiologicalcharacteristics in intercropping and sole. However, less information was shown the relationshipsbetween plant aboveground biomass (AB), phosphorus accumulation (PB) and remobilizationand the yield advantage. Here, field exper...

Changes in dry weights, reduced N, nitrate, and nitrate reductase activity of various plant parts of the above ground vegetation (stover) and ears of field grown maize were measured at intervals between anthesis and grain maturity. Nonstructural carbohydrate contents were also measured in some instances. Changes in dry weight and reduced N content were used to approximate net in situ photosynth...