
Vegetable Physiology, Production and Quality
Maximizing crop yield, quality and resource use efficiency in water limited areas in less fertile soils
Summary
The Vegetable Physiology research program aims at understanding plant adaptation mechanisms to abiotic stresses (water limitation, drought and heat stress) and in developing sustainable cropping systems for high-value crops.
Publications
Recent Related Publications (2024-2019)
Mancini, M., Lanza Volpe., M., Gatti, B., Malik, Y., Moreno, A.C. Leskovar, D.I. and V. Cravero. 2019. Characterization of cardoon accessions as feedstock for biodiesel production. Fuel 235:1287-1293. https://doi.org/10.1016/j.fuel.2018.08.123
*Lee, C., Harvey, J.T., *Qin, K., V. Joshi, and D.I. Leskovar. 2024. Exploring the potential of Solanum pennellii and Solanum peruvianum as rootstocks for enhancing thermotolerance of tomato plants. Environmental and Experimental Botany, Volume 221, May 2024, 105741. https://doi.org/10.1016/j.envexpbot.2024.105741
Leskovar, D.I. and *Qin, K. 2024. A comprehensive analysis and scientific impact of ASHS cross-commodity publication awards. HortTechnology 34(3), 292-300. https://doi.org/10.21273/HORTTECH05363-23
*Bhattarai, S.; Harvey, J.T.; *Lee, C.; Joshi, V. and D.I. Leskovar. 2024. Assessment of physiological and biochemical thermotolerance traits in tomato genotypes. Scientia Horticulturae, Vol 324, 112561. https://doi.org/10.1016/j.scienta.2023.112561
§Dash, P.K., Guo, B. and D.I. Leskovar. 2024. Assessing tomato genotypes for organic hydroponic production in stressful environmental conditions. HortScience, 59(2):188-200. https://doi.org/10.21273/HORTSCI17481-23
*Lee, C., Harvey, J.T., *Nagila, A., *Qin, K., and D.I. Leskovar. 2023. Thermotolerance of tomato plants grafted onto wild relative rootstocks. Front. Plant Sci., Sec. Plant Abiotic Stress. Volume 14 – 2023 https://doi.org/10.3389/fpls.2023.1252456
§Dash, P.K., Guo, B. and D.I. Leskovar. 2023. Optimizing hydroponic management practices for organically grown greenhouse tomato under abiotic stress conditions. HortScience. 58(10):1129-1138. https://doi.org/10.21273/HORTSCI17249-23
Niyakan, S., Nagashima, Y., Singh, J., Metrani, R., Crosby, K.M., Jifon, J., Jayaprakasha, G.K., Ravishankar, S., Brierley, P., Leskovar, D.I., Turini, T.A., Schultheis, J., Coolong, T., Guan, W., Miller, R., Patil, B., Qian, X., and H. Koiwa. Genetic and geographical inputs that shape metabolomic and transcriptomic profiles of melon fruits. Scientia Horticulturae, Vol 321, 112337. https://doi.org/10.1016/j.scienta.2023.112337
Crosby, M., Marquez. S., Jifon, J., Leskovar, D., Singh, J. and B. Patil. 2023. Supermelon and flavorific: two new hybrid muskmelon cultivars with resistance to Monosporascus cannonballus from Texas A&M AgriLife Research. HortScience. 58(7): 804-807. https://doi.org/10.21273/HORTSC117116-23
*Qin., K., Harvey, J.T., *Lee, C., and D.I. Leskovar. 2023. Substrate amended with solid humic substances improved Micro-Tom tomato growth. European Journal of Horticultural Science, 88(5) https://doi.org/10.17660/eJHS.2023/030
*Qin., K., Dong, X., and D.I. Leskovar. Improving tomato nitrogen use efficiency with lignite-derived humic substances. Scientia Horticulturae, Vol 321, 112243 https://doi.org/10.1016/j.scienta.2023.112243
*Lee, C., Harvey, J.T., *Qin, K., and D.I. Leskovar. 2023. Physio-biochemical responses of grafted tomatoes differing in thermotolerance to heat stress and recovery. Scientia Horticulturae, Vol 308, 1111546 https://doi.org/10.1016/j.scienta.2022.111546
Metrani, R., Singh, J., Jayaprakasha, G.K., Crosby, K.M., Jifon, J.L., Ravishankar, S., Brierley, P.E., Leskovar, D.I., Turini, T.A., Schultheis, J., Coolong, T., Guan, W., Patil, B.S. 2023. Multi-location evaluation of cantaloupe (Cucumis melo L.) cultivars for their aroma and flavor related volatile composition using a metabolomics approach. Food Chemistry Advances https://doi.org/10.1016/j.focha.2023.100223
Dong, X. Feng, G., Sieckenius, and D.I. Leskovar. 2023. Effect of mustard cover crops on corn growth, yield and soil water storage in southwest Texas. Arid Land Research and Management https://doi.org/10.1080/15324982.2022.2130114
Mancini, M., Breso,A., Rúa, F., Lanza Volpe, M., Leskovar, D., and V. Cravero. 2023. Biomass characterization of wild and cultivated cardoon accessions and estimation of potential biofuels production. Biomass Conv. Bioref. https://doi.org/10.1007/s13399-023-03784-y
Singh J., Metrani R., Jayaprakasha G.K., Crosby K.M., Jifon J.L., Ravishankar S., Brierley P., Leskovar D. I., Turini T.A., Schultheis J., Coolong T., Guan W., Patil B.S. 2022. Profiling carotenoid and sugar contents in unique Cucumis melo L. cultigens harvested from different climatic regions of the United States. Journal of Food Composition and Analysis; https://doi.org/10.1016/j.jfca.2021.104306
§Othman, Y.A. and D.I. Leskovar. 2022. Foliar application of gibberellic acid improves yield and head phenolic compounds in globe artichoke. Scientia Horticulturae 301. https://doi.org/10.1016/j.scienta.2022.111115
§Othman, Y.A. and D.I. Leskovar. 2022. Degradable mulch as an alternative to polyethylene for watermelon production. HortTechnology 32:2. https://doi.org/10.21273/HORTTECH04997-21
*Alves, FM, Joshi, M, §Djidonou, D, Joshi, V, Gomes, NI and DI Leskovar. Physiological and biochemical responses of tomato plants grafted onto solanum pennellii and solanum peruvianum under water-deficit conditions Plants 2021, 10(11), 2236; https://doi.org/10.3390/plants10112236
§Joshi, M, Leskovar, D, §Djidonou, D, Jifon, J, Avila, C, Masabni, J and K Crosby. Production systems and growing environments had stronger effects than grafting on the nutritional quality of tomato. ACS Food Science & Technology. 2021. 1 (8), 1399-1411 DOI: 10.1021/acsfoodscitech.1c00051
Niu, G.; Masabni, J.; Hooks, T.; Leskovar, D.; Jifon, J. The performance of representative Asian vegetables in different production systems in Texas. Agronomy 2021, 11, 1874. https://doi.org/10.3390/agronomy11091874
Dong X, Peng B, Sieckenius S, Raman R, Conley MM, Leskovar DI. 2021. Leaf water potential of field crops estimated using NDVI in ground-based remote sensing—opportunities to increase prediction precision. PeerJ 9:e12005 https://doi.org/10.7717/peerj.12005
*Bhattarai, S.; Harvey, J.T.; §Djidonou, D.; Leskovar, D.I. 2021. Exploring morpho-physiological variation for heat stress tolerance in tomato. Plants 2021, 10, 347. https://doi.org/10.3390/plants10020347
Leskovar, D.I.; §Othman, Y.A. Direct Seeding and Transplanting influence root dynamics, morpho-physiology, yield, and head quality of globe artichoke. Plants 2021, 10, 899. https://doi.org/10.3390/plants10050899
Khasawneh, A.E.R., N. Alsmairat, Y.A. §Othman, J.Y. Ayad, T. Al-Qudah & D.I. Leskovar. 2021. Influence of nitrogen source on physiology, yield and fruit quality of young apricot trees. Journal of Plant Nutrition, DOI: 10.1080/01904167.2021.1918718
*Qin, K., and D.I. Leskovar. 2020. Humic substances improve vegetable seedling quality and post-transplant yield performance under stress conditions. Agriculture, 10, 254. https://doi.org/10.3390/agriculture10070254.
§Djidonou, D., Leskovar, D.I., Joshi, M. et al. 2020. Stability of yield and its components in grafted tomato tested across multiple environments in Texas. Sci Rep 10, 13535. https://doi.org/10.1038/s41598-020-70548-3
Tahat, M.M, Alananbeh, K.M., §Othman, Y., and D. Leskovar. 2020. Soil health and sustainable agriculture. Sustainability 2020, 12(12), 4859; https://doi.org/10.3390/su12124859
Sharma, S.P., Leskovar, D.I., Crosby, K.M. and A.M.H. Ibrahim. 2020. GGE biplot analysis of genotype-by-environment interactions for melon fruit yield and quality traits. HortScience 55:533-542. https://doi.org/10.21273/HORTSCI14760-19
Singh, D., Leskovar, D.I., Sharma, S.P. et al. 2020. Genetic diversity and interrelationship among Indian and exotic melons based on fruit morphology, quality components and microsatellite markers. Physiol Mol Biol Plants 26, 985–1002. https://doi.org/10.1007/s12298-020-00814-1
Qin, K. and D.I. Leskovar. 2020. Assessments of humic substances application and deficit irrigation in triploid watermelon. HortScience 55:716-721. https://doi.org/10.21273/HORTSCI14872-20
Peng, B., Liu, X., Dong, X., Xue, Q., Neely, C.B., Marek, T., Ibrahim, A.M.H., Zhang, G., Leskovar, D.I., and J.C. Rudd 2019. Root morphological traits of winter wheat under contrasting environments. J Agro Crop Sci. 205: 571– 585. https://doi.org/10.1111/jac.12360
Yoo, K.S., Leskovar, D., Patil, B.S. and E.J. Lee. 2019. Effects of leaf cutting on bulb weight and pungency of short-day onions after lifting the plants. Scientia Horticulturae, 257. https://doi.org/10.1016/j.scienta.2019.108720
Qin, K. Dong, X., Jifon, J. and D.I. Leskovar. 2019. Rhizosphere microbial biomass is affected by soil type, organic and water inputs in a bell pepper system. Applied Soil Ecology 138, 80-87. https://doi.org/10.1016/j.apsoil.2019.02.024
Djidonou, D. and D.I. Leskovar. 2019. Seasonal changes in growth, nitrogen nutrition, and yield of hydroponic lettuce. HortScience 54:76-85. https://doi.org/10.21273/HORTSCI13567-18
Macias-Leon, M. A. and D.I. Leskovar. 2019. Containerized onion transplant: Management systems to enhance growth, yield and quality. HortScience 54:60-69. https://doi.org/10.21273/HORTSCI13438-18
Dong, X., Peng, B., Liu, X., Qin, K. Xue, Q. and D.I. Leskovar. 2019. An automated calculation of plant root distribution parameters based on root length density data. Applied Ecology & Environmental Research, 17: 3545-3552.
Othman, Y.A. and D. I. Leskovar. 2019. Nitrogen management influenced root length intensity of young olive trees. Scientia Horticulturae 246, 726-733. https://doi.org/10.1016/j.scienta.2018.11.052
Leskovar, D.I. and Othman. 2019. Nitrogen management for improving root and shoot components of young ‘Arbequina’ olives. HortScience 54:175-180. https://doi.org/10.21273/HORTSCI13397-18
Sharma, S.P., D.I. Leskovar and K.M. Crosby. 2019. Genotypic differences in leaf gas exchange and growth responses to deficit irrigation in reticulatus and inodorus melons (Cucumis melo L.). Photosynthetica 57. DOI: 10.32615/ps.2019.022.
Liu, X., Feakins, S.J., Dong, X., Xue, Q., Han, J., Marek, T., Leskovar, D.I., Neely, C.B. and A.M.H. Ibrahim. 2019. Evaluating Leaf Wax and Bulk Leaf Carbon Isotope Surrogates for Water Use Efficiency and Grain Yield in Winter Wheat. Crop Science, 59: 718-732. doi:10.2135/cropsci2018.07.0452
Research projects
Genetic Environment Management (GEM) for Stress Tolerance, Yield and Quality
In conjunction with breeders, projects are focused on high-value vegetables such as fresh-market tomato and specialty melons rich in nutrients, vitamins and antioxidants, compounds important for human health. We are integrating production strategies with new soil, and canopy sensing methods to screen and select superior germplasm with potential for abiotic/biotic stress tolerance, high nutrition and…
Learn more Genetic Environment Management (GEM) for Stress Tolerance, Yield and Quality
Hydroponics: Water and Nitrogen Management for Leafy Vegetables
Understanding growth, water use, N-nutrient uptake, and utilization is a prerequisite to effectively managing irrigation and fertilization programs in any cropping system including leafy vegetables in hydroponic systems. Earlier studies demonstrated the significant water savings (up to 90%) of lettuce cultivars grown in hydroponics versus open field cultivation under drip or center pivot systems. In…
Learn more Hydroponics: Water and Nitrogen Management for Leafy Vegetables
Organic Systems: Soil Health and Phytochemicals in Globe Artichoke
Soil amendments using organic fertilizers are widely used to dispose of animal waste, reduce environmental pollution and improve soil and fruit quality. A new study assessed the influence of plant- and animal-based soil amendments on soil nutrient availability, CO2 respiration (soil health indicator), yield and phytochemicals of artichoke (Cynara cardunculus cv. 179) heads. After two years of organic…
Learn more Organic Systems: Soil Health and Phytochemicals in Globe Artichoke
Tomato grafting: High tunnel and field production systems
Successful integration of tomato grafting with high tunnels (HT) could open new opportunities for the Texas tomato industry by using vigorous rootstocks for effectively managing soil diseases, abiotic stresses, and improve fruit quality and yield. Multilocation trials were conducted to evaluate the yield performance of grafted tomatoes in HT and open-field (OF) environments. Overall the…
Learn more Tomato grafting: High tunnel and field production systems
Soil amendments and health: Applications on plants and soil-biota growth
Organic matter-derived soil amendments containing humic substances (HS) have a functional role in improving plant growth and soil quality. A recent study assessed the impact of lignite-derived HS on biota growth and evaluated their potential mitigative effects under water deficit stress in bell pepper plants grown in sandy and clay soil previously mixed with HS.…
Learn more Soil amendments and health: Applications on plants and soil-biota growth
Seed and transplant physiology: Impact in onion establishment
Plant growth regulators (PGRs) can positively regulate seed germination and/or root growth and development. Research in onion seeds showed the PGR ethephon, to be beneficial in increasing seedling root surface area but reduced root length. Hydro-priming was shown to be a simple and viable method to enhance onion germination and root traits. A follow-up study…
Learn more Seed and transplant physiology: Impact in onion establishment
Program Faculty and Staff

Dr. Daniel Leskovar
Center Director & Professor of Vegetable Physiology
[email protected]
(830)988-6124
Publications
A full selection of Dr. Leskovar’s publications is available ResearchGate along with information about researchers and peer-reviewed publications across The Texas A&M University System.