Abstract Drought stress (DS) at different growth stages of spring wheat ( Triticum aestivum L.) may affect its grain yield and end‐use quality differently. The impact drought on has been widely studied, but the not thoroughly investigated. A 2‐year field experiment was conducted to evaluate effects DS in classes (soft white ‘Alturas,’ hard red ‘Coho,’ ‘Dayn’). treatments included (from tillering stem elongation, booting heading, anthesis soft dough) plus a fully irrigated (well‐watered)...

ABSTRACT Drought stress reduces cereal crop growth and yield due to modifications interactions between sink source. However, little research has investigated multiple carbon sources their relationships with capacities, especially in response drought at different stages. The objective of this study was thus examine two major (i.e., photosynthetic assimilation the flag leaf remobilisation pre‐anthesis reserves stems) strength phenological A greenhouse experiment conducted five water regimes:...

Abstract There is a lack of studies that have investigated grain yield, its components and photosynthesis in late stages wheat growth, giving us insufficient understanding how these factors interact to contribute yield during this period. As result, three field experiments were carried out examining 20 winter genotypes diverse origins under irrigated, terminal drought dryland conditions the southern Idaho. Our objective was evaluate interaction between post‐anthesis physiological traits,...

Abstract Nitrogen and water are two key factors for wheat production due to their major roles in plant growth development, photosynthesis, yield, grain protein content. Plant uptake of N is fundamentally interactive. Our objectives were: (a) analyze the effects different irrigation (IR) rates on spring ( Triticum aestivum L.) yield protein, spectral indices (relative greenness [SPAD] Normalized Difference Vegetation Index [NDVI]), (b) identify optimum IR requirements semi‐arid conditions...

Wheat accessions from the USDA-ARS National Small Grains Collection (NSGC) are a potential genetic resource for variety improvement. This study assessed agronomic performance and drought tolerance in 198 winter wheat under irrigated terminal environments 2012–2013 season, repeated test only during 2013–2014 season. The were classified into three maturity groups, early, intermediate, late based on heading data. In all environments, early had best performance, produced higher grain yield,...

Lodging in cereal crops can result yield loss and harvesting difficulties for growers. Application of plant growth regulator (PGR) has been an indispensable management practice to reduce lodging problems that are often exacerbated during high wind growing conditions and/or nitrogen (N)/water environments, but the data is limited Columbia Basin Oregon. The objective this research was evaluate effect two PGR products (chlormequat chloride-CC, trinexapac-ethyl-TE) at different rates application...

Wheat (Triticum aestivum L.) grain quality is determined by multiple physical and chemical attributes. However, previous studies mainly focused on protein quantity composition, which may not be adequate for understanding quality, especially end-use quality. Field experiments were conducted at two locations years to better understand how what extent water nitrogen (N) availability affect flour Four drought stress levels (i.e., mild, moderate, severe, well-watered) four N rates zero, low,...

Abstract Second‐generation biofuels and bio‐based products derived from lignocellulosic biomass are likely to replace current fuels simple sugars starch because of greater yield potential less competition with food production. Besides the high aboveground production, these bioenergy grasses also exhibit extensive root systems. The decomposition greatly influences nutrient cycling microbial activity subsequent accumulation carbon (C) in soil. objective this research was thus characterize...

Plant root architecture offers the potential for increasing soil water accessibility, particularly under water-limited conditions. The objectives of this study were to evaluate in two genotypes sorghum (Sorghum bicolor (L.) Moench) differing angles and assess influence different deficit irrigation regimes on architecture. response genotypes, 'Early Hegari-Sart' (EH; steep angle) 'Bk7' (shallow four treatments was investigated replicated outdoor studies using large pots. results indicated...

ABSTRACT Freeze tolerance is a complex agronomic trait that difficult to evaluate in the field because of year‐to‐year variation weather. Discovering plant characteristics closely related freeze would enable more effective selection for this important trait. To explore possible physiological mechanisms and search useful winter barley, we conducted growth chamber experiments with seven freeze‐tolerant freeze‐susceptible genotypes exhibited contrasting survival preliminary screenings. In...

Abstract Background Biochar is a multifunctional soil conditioner capable of enhancing health and plant productivity, but the underlying mechanisms remain elusive. Here we tackled this question using wheat as model through lens rhizosphere, vital soil-plant interface continuum. We systematically examined effects four types biochar (corn stover, cattle manure, pine sawdust, or straw) applied at two rates (0.25% 2.5%, w/w). Results Employing untargeted metabolomics 16S rRNA gene sequencing,...

Abstract Studies have generally shown that grain mineral density is lower in modern wheat ( Triticum aestivum L.) compared to historic germplasm. The conclusion of a limited study from the US Pacific Northwest (PNW) was soft white (SWW) had declined over time meet already‐low hard red (HRW), though little else known about this. Therefore, primary objective this better understand (P, K, Mg, Ca, Mn, Fe, Zn, and Cu) PNW wheats, with subobjectives compare SWW HRW classes each other worldwide...

The development of a (layer of) thatch in turfgrass causes important changes to near-surface eco-hydrological processes. In this study, we investigated the effects thatch, specifically Kentucky bluegrass (Poa pratensis L.) and red fescue (Festuca rubra on water infiltration, surface runoff, soil moisture evaporation. thatches were collected from field for controlled experiments using packed columns under various rainfall conditions. Results indicated that presence delayed onset infiltration...

ABSTRACT Elephantgrass ( Pennisetum purpureum Schum.) and energycane Saccharum spp.) are promising perennial bioenergy crops in the southeastern United States. Despite plentiful rainfall this region, these grasses have a long growing season subject to intermittent drying cycles frequently during summer fall, yet there is little information on their response drought stress. The objectives of study were investigate water relations elephantgrass genotypes under optimal inputs progressive soil...

To decrease the transfer of cadmium (Cd) to food chain, it is essential select wheat (Triticum aestivum L.) germplasm that accumulates least amount Cd and develop management practices promote a reduction in uptake. This requires knowledge factors controlling accumulation plants, which are not fully understood. The aim this study was thus investigate variations accumulation, translocation, subcellular distribution response stress supplemental Si two cultivars have high vs. low capacities....

Abstract Semiarid regions in southern Idaho receive a small amount of annual precipitation (e.g., 9–12 inches), and crop options are very limited dryland farming without supplemental irrigation. To diversify cropping systems, growers can incorporate crops with lower water requirements through rotations intercropping. Field trials were conducted to evaluate yield soil health barley–pulse intercrops under full deficit irrigation no N fertilizers. Earn 0.5 CEUs Soil & Water Management by...