Robert M. Aiken
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View article: Biomass yield and water‐use efficiency in photoperiod‐sensitive sorghum genotypes in the US Southern Great Plains
Biomass yield and water‐use efficiency in photoperiod‐sensitive sorghum genotypes in the US Southern Great Plains Open
Photoperiod‐sensitive (PS) sorghum [ Sorghum bicolor (L.) Moench] has been developed as a bioenergy crop. However, little is known about PS sorghum production in semiarid environments. The objective of this study was to investigate water u…
View article: Estimation of biomass burning emission of NO <sub>2</sub> and CO from 2019–2020 Australia fires based on satellite observations
Estimation of biomass burning emission of NO <sub>2</sub> and CO from 2019–2020 Australia fires based on satellite observations Open
The bushfires that occurred in Australia in late 2019 and early 2020 were unprecedented in terms of their scale, intensity, and impacts. Using nitrogen dioxide (NO2) and carbon monoxide (CO) data measured by the Tropospheric Monitoring Ins…
View article: Comment on acp-2022-447
Comment on acp-2022-447 Open
Abstract. The bushfires that occurred in Australia in late 2019 and early 2020 were unprecedented in terms of their scale, intensity, and impacts. Using nitrogen dioxide (NO2) and carbon monoxide (C…
View article: Estimation of Biomass Burning Emission of NO <sub>2</sub> and CO from 2019–2020 Australia Fires Based on Satellite Observations
Estimation of Biomass Burning Emission of NO <sub>2</sub> and CO from 2019–2020 Australia Fires Based on Satellite Observations Open
The bushfires that occurred in Australia in late 2019 and early 2020 were unprecedented in terms of their scale, intensity, and impacts. Using nitrogen dioxide (NO2) and carbon monoxide (CO) data measured by the Tropospheric Monitoring Ins…
View article: Fresh perspectives on an established technique: Pulsed amplitude modulation chlorophyll <i>a</i> fluorescence
Fresh perspectives on an established technique: Pulsed amplitude modulation chlorophyll <i>a</i> fluorescence Open
Pulsed amplitude modulation (PAM) chlorophyll a fluorescence provides information about photosynthetic energy transduction. When reliably measured, chlorophyll a fluorescence provides detailed information about critical in vivo photosynthe…
View article: Sorghum, a promising multiple-use crop for dry and hot climates
Sorghum, a promising multiple-use crop for dry and hot climates Open
View article: Fresh perspectives on an established technique: Pulsed Amplitude Modulation (PAM) chlorophyll a fluorescence
Fresh perspectives on an established technique: Pulsed Amplitude Modulation (PAM) chlorophyll a fluorescence Open
Data are experimental data we collected.
View article: The Haplotype-Based Analysis of Aegilops tauschii Introgression Into Hard Red Winter Wheat and Its Impact on Productivity Traits
The Haplotype-Based Analysis of Aegilops tauschii Introgression Into Hard Red Winter Wheat and Its Impact on Productivity Traits Open
The introgression from wild relatives have a great potential to broaden the availability of beneficial allelic diversity for crop improvement in breeding programs. Here, we assessed the impact of the introgression from 21 diverse accession…
View article: Fresh perspectives on an established technique: Pulsed Amplitude Modulation (PAM) chlorophyll a fluorescence
Fresh perspectives on an established technique: Pulsed Amplitude Modulation (PAM) chlorophyll a fluorescence Open
Pulsed amplitude modulation (PAM) chlorophyll a fluorescence provides information about photosynthetic energy transduction. When reliably measured, chlorophyll a fluorescence provides detailed information about critical in vivo photosynthe…
View article: The haplotype-based analysis of<i>Aegilops tauschii</i>introgression into hard red winter wheat and its impact on productivity traits
The haplotype-based analysis of<i>Aegilops tauschii</i>introgression into hard red winter wheat and its impact on productivity traits Open
Introgression from wild relatives have a great potential to broaden beneficial allelic diversity available for crop improvement in breeding programs. Here, we assessed the impact of introgression from 21 diverse accessions of Aegilops taus…
View article: Water vapor density and turbulent fluxes from three generations of infrared gas analyzers
Water vapor density and turbulent fluxes from three generations of infrared gas analyzers Open
Fast-response infrared gas analyzers (IRGAs) have been widely used over 3 decades in many ecosystems for long-term monitoring of water vapor fluxes in the surface layer of the atmosphere. While some of the early IRGA sensors are still used…
View article: Testing Efficacy of Plant Growth Regulator Products for Enhanced Winter Wheat Grain Yield and Quality
Testing Efficacy of Plant Growth Regulator Products for Enhanced Winter Wheat Grain Yield and Quality Open
Experimental plant growth regulator compounds are expected to improve wheat grain yield by extending the duration of green leaf area and altering remobilization of stored carbohydrates. In order to evaluate this, plant growth regulator mat…
View article: Water vapor density and turbulent fluxes from three generations of infrared gas analyzers
Water vapor density and turbulent fluxes from three generations of infrared gas analyzers Open
Fast-response infrared gas analyzers (IRGAs) have been widely used over three decades in many ecosystems for long-term monitoring of water vapor fluxes in the surface layer of the atmosphere. While some of the early IRGA sensors are still …
View article: Water Use and Productivity of Corn and Grain Sorghum in Long-Term Crop Sequences
Water Use and Productivity of Corn and Grain Sorghum in Long-Term Crop Sequences Open
Dryland corn and grain sorghum showed similar water productivity of grain and above-ground biomass, relative to respective growing periods, at the apparent yield frontier. The yield frontier indicates the maximum productivity for a given a…
View article: Water Use and Productivity of Teff, a Dairy Quality Forage Crop
Water Use and Productivity of Teff, a Dairy Quality Forage Crop Open
Teff grass can be a competitive summer annual forage in Kansas. Teff grass is a rapidly growing, high quality forage that could be a good option for producers in water-limited areas with a short growing season. The cultivar ‘Excalibur’ exh…
View article: Restricted water allocations: Landscape-scale energy balance simulations and adjustments in agricultural water applications
Restricted water allocations: Landscape-scale energy balance simulations and adjustments in agricultural water applications Open
View article: Increased Bias in Evapotranspiration Modeling Due to Weather and Vegetation Indices Data Sources
Increased Bias in Evapotranspiration Modeling Due to Weather and Vegetation Indices Data Sources Open
Core Ideas Increased bias in ET due to various data sources where generally utilized standard weather data poses similar biases. Increased understanding of the complex relationship among the various weather input and vegetation indices. Re…
View article: Evaluating Teff Grass as a Summer Forage
Evaluating Teff Grass as a Summer Forage Open
The objectives of this study were to determine the forage yield, nutritive value, and water use efficiency of teff grass (Eragrostis tef) under field conditions as compared to sorghum sudangrass and forage pearl millet. Water use efficienc…
View article: Crop Water Production Functions of Grain Sorghum and Winter Wheat in Kansas and Texas
Crop Water Production Functions of Grain Sorghum and Winter Wheat in Kansas and Texas Open
Productivity of water‐limited cropping systems can be reduced by untimely distribution of water as well as cold and heat stress. The objective of this study was to evaluate the predictive accuracy of the Kansas Water Budget (KSWB) model fo…
View article: Improvements to the Hybrid-Maize model for simulating maize yields in harsh rainfed environments
Improvements to the Hybrid-Maize model for simulating maize yields in harsh rainfed environments Open
This paper reports revisions in formulation and new features of the Hybrid-Maize model (released as HM2016), to better simulate yields in harsh rainfed environments. Revisions include updated subroutines for root growth and distribution wi…
View article: Irrigated Sunflowers in Northwest Kansas: Productivity and Canopy Formation
Irrigated Sunflowers in Northwest Kansas: Productivity and Canopy Formation Open
Sunflower was grown in a three-year study (2009, 2010, and 2012) at the Kansas State University Northwest Research-Extension Center at Colby, KS, under a lateral move sprinkler irrigation system. Irrigation capacities were limited to no mo…
View article: Irrigation and Tillage Management Effects on Canopy Formation in Corn
Irrigation and Tillage Management Effects on Canopy Formation in Corn Open
Effects of canopy formation and function are frequently represented in irrigation management models by crop coefficients, which can be used to calculate expected crop water requirements. Soil tillage alters the micro-environment of a devel…
View article: Observational evidence of temperature trends at two levels in the surface layer
Observational evidence of temperature trends at two levels in the surface layer Open
Long-term surface air temperatures at 1.5 m screen level over land are used in calculating a global average surface temperature trend. This global trend is used by the IPCC and others to monitor, assess, and describe global warming or warm…
View article: Supporting Effective Collaboration: Using a Rearview Mirror to Look Forward
Supporting Effective Collaboration: Using a Rearview Mirror to Look Forward Open
View article: Observational evidence of temperature trends at two levels in the surface layer
Observational evidence of temperature trends at two levels in the surface layer Open
Long-term surface air temperatures at 1.5 m screen level over land are used in calculating a global average surface temperature trend. This global trend is used by the IPCC and others to monitor, assess, and describe global warming or warm…