Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 4 of 4
Full-Text Articles in Life Sciences
Genomic Prediction Of Salinity Stress Tolerance In Maize (Zea Mays L.), Vishal Singh
Genomic Prediction Of Salinity Stress Tolerance In Maize (Zea Mays L.), Vishal Singh
Student Research Symposium
Maize is the largest crop in the world in terms of production. Utah, maize is a potential fodder crop. With increasing climate change, soil salinity is also increasing worldwide. Soil salinity is very detrimental to plants' growth and development and crop production. For a fodder crop, plant biomass is an important trait, and maize biomass is adversely affected by salinity stress, especially at the seedling stage. A Selection of salt-tolerant breeding material is a time-consuming process and its complexity is further increased by significant heterogeneity in soil salinity under field based evaluation. Genomic prediction is an emerging tool that can …
Response Of Stomatal Density And Bound Gas Exchange In Leaves Of Maize To Soil Water Deficit, Wensai Zhao, Yonglin Sun, Roger Kjelgren, Xiping Liu
Response Of Stomatal Density And Bound Gas Exchange In Leaves Of Maize To Soil Water Deficit, Wensai Zhao, Yonglin Sun, Roger Kjelgren, Xiping Liu
Plants, Soils, and Climate Faculty Publications
Stomatal behavior in response to drought has been the focus of intensive research, but less attention has been paid to stomatal density. In this study, 5-week-old maize seedlings were exposed to different soil water contents. Stomatal density and size as well as leaf gas exchange were investigated after 2-, 4- and 6-weeks of treatment, which corresponded to the jointing, trumpeting, and filling stages of maize development. Results showed that new stomata were generated continually during leaf growth. Reduced soil water content significantly stimulated stomatal generation, resulting in a significant increase in stomatal density but a decrease in stomatal size and …
Growth And Physiological Responses Of Maize And Sorghum Genotypes To Salt Stress, Youping Sun, Wenwei Xu, Denise Rodriguez, Youping Sun
Growth And Physiological Responses Of Maize And Sorghum Genotypes To Salt Stress, Youping Sun, Wenwei Xu, Denise Rodriguez, Youping Sun
Plants, Soils, and Climate Faculty Publications
The growth and physiological responses of four maize inbred lines (CUBA1, B73, B5C2, and BR1) and four sorghum hybrids (SS304, NK7829, Sordan 79, and KS585) to salinity were determined. Fifteen days after sowing, seedlings were irrigated with nutrient solution (control) at electrical conductivity (EC) of 1.5 dS m−1 or saline solution at EC of 8.0 dS m−1 (salt treatment) for 40 days. Dry weight of shoots in maize was reduced by 58%, 65%, 62%, and 69% in CUBA1, B73, B5C2, and BR1, respectively, while that of sorghum was reduced by 51%, 56%, 56%, and 76% in SS304, NK7829, Sordan79, and …
Temperature Effect On Leaf Water Potential Measurements, Rex J. Prosser
Temperature Effect On Leaf Water Potential Measurements, Rex J. Prosser
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Silver foil psychrometers were used to monitor water potential in different portions of maize leaves which were subjected to temperature gradients. The psychrometers were preliminarily calibrated over standard NaCI solutions at temperatures ranging from 5°C to 45°C in an aluminum plate apparatus designed to provide uniform temperatures within each psychrometer even while overall temperature was changing. Based on the calibrations, empirical temperature correction equations were derived and used to correct psychrometer readings at different temperatures to equivalent values at 25°C. Temperatures on a single maize leaf were varied by placing the long leaf through an insulated box with several compartments …