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Crop Water Stress Index Of An Irrigated Vineyard In The Central Valley Of California, John H. Prueger, Christopher K. Parry, William P. Kustas, Joseph G. Alfieri, Maria M. Alsina, Héctor Nieto, Tiffany G. Wilson, Lawrence E. Hipps, Martha C. Anderson, Jerry L. Hatfield, Fen Gao, Lynn G. Mckee, Andrew Mcelrone, Nurit Agam, Sebastian A. Los

Plants, Soils, and Climate Faculty Publications

Water-limiting conditions in many California vineyards necessitate assessment of vine water stress to aid irrigation management strategies and decisions. This study was designed to evaluate the utility of a Crop Water Stress Index (CWSI) using multiple canopy temperature sensors and to study the diurnal signature in the stress index of an irrigated vineyard. A detailed instrumentation package comprised of eddy covariance instrumentation, ancillary surface energy balance components, soil water content sensors and a unique multi-canopy temperature sensor array were deployed in a production vineyard near Lodi, CA. The instrument package was designed to measure and monitor hourly growing season turbulent …

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Climate Of The Weakly-Forced Yet High-Impact Convective Storms Throughout The Ohio River Valley And Mid-Atlantic United States, Binod Pokharel, Shih-Yu (Simon) Wang, Jonathan D. Meyer, Robert R. Gillies, Yen-Heng Lin

Plants, Soils, and Climate Faculty Publications

The 1-in-1000-year precipitation event in late June 2016 over West Virginia caused tremendous flooding damage. Like the 2012 mid-Atlantic derecho that blacked out much of the DC area, similar events can be traced to small, mid-tropospheric perturbations (MPs) embedded in the large-scale ridge pattern. Under this “weakly-forced” pattern, severe weather outbreaks commonly occur alongside eastward propagating MPs acting as a triggering mechanism for progressive mesoscale convective systems, which move across the central and eastern US. Forecasting of such weakly-forced yet severe weather events is difficult in both weather and climate timescales. The present diagnostic analysis of the MP climatology is …

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Influence Of Harvest Date On Seed Yield And Quality In Forage Kochia, Cody F. Creech, Blair L. Waldron, Corey V. Ransom, Dale R. Zobell, Joseph Earl Creech

Plants, Soils, and Climate Faculty Publications

Forage kochia (Bassia prostrata) is used for rangeland reclamation and livestock and wildlife forage, but limited research has been conducted on its seed production. Therefore, this research evaluated the effect of harvest date on seed weight, germination, and seed yield of forage kochia subspecies virescens and grisea. Seed was harvested from individual plants for 3 years during October, November, and December. October harvest had the lightest 100-seed weights, with the November harvest slightly heavier than December, for most accessions. Cultivar Snowstorm and breeding line Sahsel, both subsp. grisea, had the greatest 100-seed weights in November, 155 …

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Evaluating Strategies For Sustainable Intensification Of Us Agriculture Through The Long-Term Agroecosystem Research Network, Sheri Spiegal, Brandon T. Bestelmeyer, David W. Archer, David J. Augustine, Elizabeth H. Boughton, Raoul Keith Boughton, Michel A. Cavigelli, Patrick E. Clark, Justin D. Derner, Emily W. Duncan, Cathleen J. Hapeman, R. Daren Harmel, Philip Heilman, Michael A. Holly, David R. Huggins, Kevin W. King, Peter A. Kleinman, Mark A. Liebig, Martin A. Locke, Gregory W. Mccarty, Neville Millar, Steven B. Mirsky, Thomas B. Moorman, Frederick B. Pierson, James R. Rigby, G. Philip Robertson, Jean L. Steiner, Timothy C. Strickland, Hilary M. Swain, Brian J. Wienhold, J.D. Wulfhorst, Matt A. Yost, Charles L. Walthall

Plants, Soils, and Climate Faculty Publications

Sustainable intensification is an emerging model for agriculture designed to reconcile accelerating global demand for agricultural products with long-term environmental stewardship. Defined here as increasing agricultural production while maintaining or improving environmental quality, sustainable intensification hinges upon decision-making by agricultural producers, consumers, and policy-makers. The Long-Term Agroecosystem Research (LTAR) network was established to inform these decisions. Here we introduce the LTAR Common Experiment, through which scientists and partnering producers in US croplands, rangelands, and pasturelands are conducting 21 independent but coordinated experiments. Each local effort compares the outcomes of a predominant, conventional production system in the region ('business as usual') …

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Jujube: A New Fruit Crop For Utah Production And Edible Low Water Landscapes 2012-14, Roger Kjelgren

Plants, Soils, and Climate Faculty Publications

1. Jujube (Ziziphus jujuba Mill.; also known as a Chinese date) is a drought tolerant fruit tree unknown in Utah but is widely grown in Asia for fruit quality and health benefits, both fresh and dried. Jujube tolerance of cold and dry conditions in China ostensibly suggests that it should tolerate Utah’s cold, dry and high pH conditions. Jujube’s drought tolerance is partly due to small, glossy leaves and deep root system that are also attractive for low water landscaping, particularly edible landscaping, and possibly small fruit production in Utah. However, there has been no systematic evaluation of jujube …

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Light Level Does Not Alter Ethylene Sensitivity In Radish Or Pea, Joseph F. Romagnano, Bruce Bugbee

Plants, Soils, and Climate Faculty Publications

Ethylene accumulation occurs in many plant growth environments. In some instances, low photosynthetic photon flux (PPF) is also a stress factor. Ethylene helps regulate the shade-avoidance mechanism and synthesis rates can be altered by light. We thus hypothesized that ethylene sensitivity in whole plants may be altered in low light. Radish (Raphanus sativus) and pea (Pisum sativum) plants were selected as models due to their rapid growth, use in previous studies and difference in growth habit. We first characterized radish and pea sensitivity to ethylene. Radish vegetation was less sensitive to ethylene than pea vegetation. Pea reproductive yield was highly …

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Plants, Soils, and Climate Faculty Publications

Climate Of The Weakly-Forced Yet High-Impact Convective Storms Throughout The Ohio River Valley And Mid-Atlantic United States, Binod Pokharel, Shih-Yu (Simon) Wang, Jonathan D. Meyer, Robert R. Gillies, Yen-Heng Lin

Plants, Soils, and Climate Faculty Publications

Influence Of Harvest Date On Seed Yield And Quality In Forage Kochia, Cody F. Creech, Blair L. Waldron, Corey V. Ransom, Dale R. Zobell, Joseph Earl Creech

Plants, Soils, and Climate Faculty Publications

Plants, Soils, and Climate Faculty Publications

Jujube: A New Fruit Crop For Utah Production And Edible Low Water Landscapes 2012-14, Roger Kjelgren

Plants, Soils, and Climate Faculty Publications

Light Level Does Not Alter Ethylene Sensitivity In Radish Or Pea, Joseph F. Romagnano, Bruce Bugbee

Plants, Soils, and Climate Faculty Publications