A5076730031- Crop Yield and Soil Fertility
- Wheat and Barley Genetics and Pathology
- Agronomic Practices and Intercropping Systems
- Genetics and Plant Breeding
- Legume Nitrogen Fixing Symbiosis
- Soybean genetics and cultivation
- Bioenergy crop production and management
- Soil Carbon and Nitrogen Dynamics
- Turfgrass Adaptation and Management
- Irrigation Practices and Water Management
- Rangeland and Wildlife Management
- Lipid metabolism and biosynthesis
- Agricultural Science and Fertilization
- Plant nutrient uptake and metabolism
- Genetic and Environmental Crop Studies
- Genetic Mapping and Diversity in Plants and Animals
- Nitrogen and Sulfur Effects on Brassica
- Plant Micronutrient Interactions and Effects
- Agricultural Productivity and Crop Improvement
- Urban Heat Island Mitigation
- Remote Sensing and Land Use
- Advanced Thermodynamic Systems and Engines
- Mycotoxins in Agriculture and Food
- Weed Control and Herbicide Applications
- Phosphorus and nutrient management
Montana State University
2014-2024
University of Nebraska–Lincoln
2011-2014
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...
Greater understanding of the impacts irrigation timing in hard red spring wheat ( Triticum aestivum L.) promotes better management, which optimizes positive and minimizes negative on yield quality. An experiment was conducted 2014 to 2015 at Creston, MT. Eight cultivars (subplots) were randomly assigned six water regimes (main plots). Aside from a rainfed check, treatments were: (i) replenishment seasonal crop evapotranspiratory loss via 32 mm per event (100ET); (ii) only 21 (66ET) simulate...
Forecast simulation of soybean [ Glycine max (L.) Merr.] vegetative stem node (Vn) and reproductive (Rn) phases can be used to improve timing agronomic practices optimize input use efficiency. A model (SoySim) was predict phenological stages in researcher producer fields evaluate sources variance. Evaluation SoySim phenology involved 21 22 Nebraska producers 2009 2010, respectively, with cultivars various maturity groups (MGs 2.5–3.8) planting dates (21 April–11 June). evaluation research...
Knowledge of soybean [ Glycine max (L.) Merr.] primary, secondary, and tertiary root tip locations in the soil vs. seasonal time would enhance modeling development. The progression development shoot phenology was evaluated situ using an imaging device inserted into minirhizotron tubes installed at in‐row 30° angle. Primary extension linear (i.e., 1.5 1.2 cm d −1 each year) until full‐seed stage. Emergent 5‐mm secondary roots were routinely detected about 10‐cm above primary tip, thus present...
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,...
Dry pea (Pisum sativum L.) is an important crop in the Northern Great Plains of USA and Canada. Information on dry quality as affected by cultivars environments limited. This experiment determined effects protein, starch, ash concentrations. Six (‘Arcadia’, ‘Bridger’, ‘CDC Striker’, ‘Cruiser’, ‘Montech 4152’, ‘SW Midas’) were evaluated a randomized complete block design with four replications 22 environments. The results showed that cultivar × environment interaction highly significant...
ABSTRACT The efficiency of irrigation water use is improved if irrigations are scheduled only when soil depletion exceeds a chosen crop‐specific threshold percentage field capacity (FC). Further improvement may be possible by accounting for seasonal variance in yield sensitivity to stress. In soybean [ Glycine max (L.) Merr.], the vegetative and bloom stages notably less sensitive stress than pod‐set seed‐fill stages. A 2‐yr experiment was conducted determine impact deferring until...
Abstract Intermediate wheatgrass ( Thinopyrum intermedium ) (IWG) is a perennial grass being domesticated for grain production with potential to provide economic return and ecosystem services across broad geographic range in North America, yet optimum seeding dates biomass yield are unknown. Our objective was determine the effect of late‐summer, fall, spring on grain‐type IWG population. Trials were conducted at St. Paul Roseau, MN, Kalispell, MT, Salina, KS. Seeding ranged from August June...
Abstract Montana is the leading producer of field peas ( Pisum sativum L.) in United States. A density 8 to 10 plants ft −2 recommended when growing that state, but this recommendation based on work done elsewhere. Field experiments were conducted central from 2021 through 2023 and at three additional locations final year determine yield economically optimum plant population (EOPP) for grain. The semi‐leafless, yellow‐cotyledon variety Montech 4152 was planted five rates (5, 7, 9, 11, 13...
The application of remotely sensed estimates canopy minus air temperature (Tc-Ta) for detecting crop water stress can be limited in semi-arid regions, because the lack full ground cover (GC) at water-critical stages. Thus, soil background may restrict interpretation by thermal remote sensing. For partial GC, combination plant and surrounding an image pixel is expressed as surface (Ts). Soil brightness (SB) scene varies with moisture. This study evaluates SB, GC Ts-Ta determines a fusion...
High wheat ( Triticum aestivum L.) grain yield and desirable quality must be considered to avoid market price penalty. Wheat classes genotypes may respond differently agronomic management environmental conditions. Our goal was characterize the yield, protein, test weight, falling number of four hard red soft white spring cultivars randomized within five N levels over contrasting environments (rainfed irrigated) in northwestern Montana. One‐third reduction from 2016 2017 attributed heat...
Abstract Rotating summer fallow with wheat ( Triticum spp.) is done in dryland grain farming at upper latitudes to stabilize yields over time and prevent crop failure. However, costly since weeds must be controlled crops are not grown. Replacing can generate low economic returns. Previous research indicated that annual cool‐season forages substituted for cropping systems. Our objective was determine if warm‐season species were suited forage production monocultures polycultures the U.S....
Core Ideas No inverse relation existed between grain yield and protein when N > 100 kg ha −1 for Egan. An relationship in Egan was only evident at a very low level. also with year, but remained premium level as long . Grain limited via reduced productive tillers number on drought year. Wheat ( Triticum aestivum L.) cultivars Gpc‐B1 gene are known to achieve high protein, which may reduce the input achieving quality. Our objectives were to: (i) determine minimum ‘Egan’ wheat varying...
Abstract Hexaploid bread wheat ( Triticum aestivum L.) and tetraploid durum Desf.) have been cultivated in similar geographic areas for ∼10,000 yr. The crossing barrier caused by ploidy difference suggests that different favorable alleles yield‐related traits may accumulated the two crops. Previous work allowed identification of at six quantitative trait loci (QTL) from a recombinant inbred line (RIL) population cross ‘Mountrail’ ‘Choteau’ spring wheat. purpose this study was to determine...
Core Ideas Boron (B) application increased petiole B in irrigated alfalfa but did not impact yield and quality. Low initial soil is a reliable measure of the need to amend with using foliar Montana. Diagnosing signs deficiency coupled in‐season analysis may be better value producers. A boron deficient negatively ( Medicago sativa L.) plant tissue sufficiency, thereby compromising quality short‐season environment such as The objective was determine impacts fertilization on 2015 2016 at...
Fertilizer NO 3 -N may represent a benefit over NH 4 containing sources in semiarid regions where rainfall is often not sufficient to leach fertilizer-N out of crop rooting zones, denitrification concerns are great, and when volatilization exist. The objective our study was contrast plant-N derived from fertilizer- 15 N ( Ndff), recovery (F NR), total uptake, grain yield, protein wheat (Triticum aestivum L.) spring-applied NaNO relative urea augmented with urease inhibitor...
Abstract Background and objectives Hard red spring wheat ( Triticum aestivum L.) (HRSW) is used for bread baking while durum turgidum L. ssp. ) pasta production. This study investigated the impact of alleles from yield component traits on HRSW end‐use quality traits. Near‐isogenic lines four quantitative trait loci, QGw.mst‐3B , QGw.mst‐7A QTn.mst‐5B QYld.mst‐2B were evaluated in rainfed irrigated environments. Findings Durum found to significantly at all loci. The allele increased kernel...
Abstract Understanding whether increasing seeding rate in canola ( Brassica napus ) provides a yield‐compensatory mechanism with delayed planting due to weather or logistical issues is important. We aim refine agronomic recommendations for production under short‐season growing conditions establish an optimal date and identify any interaction of spring cultivar date. conducted this study 2014, 2015, 2016 Creston, MT, as split–split plot dates, maturities, rates mainplot, subplot, sub‐subplot,...