Dr. Richard L. Harkess

Poudel, S., Valsala Sankarapillai, L., Sivarathri, B. S., Hosahalli, V., Harkess, R. L., Bheemanahalli, R. 2025. Characterization of Cowpea Genotypes for Traits Related to Early-Season Drought Tolerance. Agriculture 15(10):1075.

Nickels, A. F., Etheredge, C. L., DelPrince, J. M., Harkess, R. L., Morrison, C. 2024. Waste Separation and Perceptions of Environmental Health in a College Floral Design Course. American Society for Horticultural Sciences 34(4):468-473.

Miller, C. T., Harkess, R. L., Haynes, C. L., Williams, K. A., Wright, A. N. 2023. Conference workshop proceedings: Developing a scholarship of teaching and learning portfolio in applied horticulture. . HortTechnology 33(1):59-64.

Li, T., Zhao, X., Bi, G., Harkess, R. L. 2022. Nitrogen fertigation rate and foliar urea spray affect plant growth, nitrogen, and carbohydrate status of Encore Azalea ‘Chiffon’ grown in alternative containers. . Horticuluturae 8(6):525 (13 pages).

Neigel, E. R., Harkess, R. L., Fox, A. 2022. Mapping potential butterfly milkweed (Asclepias tuberosa) habitat in Mississippi using Species Distribution Modeling (SDM) and Geographical Information Systems (GIS). Native Plants Journal 23(1):84 - 96.

Zhang, Q., Bi, G., Li, T., Wang, Q., Xing, Z., LeCompte, J., Harkess, R. L. 2022. Color Shade Nets Affect Plant Growth and Seasonal Leaf Quality of Camellia sinensis Grown in Mississippi, United States. Frontiers in Nutrition 9(Article 786421):1-13.

Werner, A., Deb, S., Fox, A., Rafia, R., Harkess, R. L., Carruth, D. W., Hudson, C. 2022. Student perceptions of traditional and simulated learning in greenhouse management. Training, Education, and Learning Sciences 59:1-8.

Zhao, X., Bi, G., Li, T., Harkess, R. L., Blythe, E. K. 2021. Nitrogen and phosphorus rates influence growth, flowering, and nutrient uptake in Iris germanica 'Immortality' . Horticultural Science and Technology 39(6):726 - 737.

Li, T., Lalk, G., Zhang, Q., Bi, G., Harkess, R. L. 2020. High-tunnel production of strawberries using black and red plastic mulches. Horticulturae 6:73.

Li, T., Bi, G., Zhao, X., Harkess, R. L., Scagel, C. 2020. Nitrogen fertilization, container type, and irrigation frequency affect mineral nutrient uptake of Hydrangea. Water

Zhang, Q., Li, T., Wang, Q., LeCompte, J., Harkess, R. L., Bi, G. 2020. Screening Tea Cultivars for Novel Climates: Plant Growth and Leaf Quality of Camellia sinensis Cultivars Grown in Mississippi USA. Frontiers in Plant Science 11:1-12.

Li, T., Bi, G., Harkess, R. L., Blythe, E. K. 2019. Mineral Nutrient Uptake of Encore Azalea ‘Chiffon’ Affected by Nitrogen, Container, and Irrigation Frequency. HortScience 54(12):2240-2248.

Stephenson, R. C., Coker, C. E., Posadas, B. C., Bachman, G. R., Harkess, R. L., Adamczyk, J. J., Knight, P. R. 2019. Economic effect of insect pest management strategies on small-scale tomato production in Mississippi. HortTech 30(1):64-75.

Smith, H. R., Harkess, R., Overstreet, C., Knight, P. R., Lawrence, G., Lawrence, K. P., Lang, D., Phillips, M. 2019. Effects of seed treatment nematicides on the growth and development of Gossypium hirsutum growing in Rotylenchulus reniformis infested soils under greenhouse environments. Nematropica 49(2):181-188.

Stephenson, R. C., Coker, C. E., Posadas, B. C., Bachman, G. R., Harkess, R. L., Adamczyk, J. J., Knight, P. R. 2019. Effect of high tunnels on populations of whiteflies, aphids, and thrips on tomatoes in Mississippi. Journal of Horticulture 6(3):259-267.

Li, T., Bi, G., Harkess, R. L. 2019. Seasonal Growth and Nitrogen Uptake of Encore Azalea ‘Chiffon’ Affected by Nitrogen Availability and Containers. HortScience 54(5).

Li, T., Bi, G., Harkess, R. L., Denny, G. C., Scagel, C. 2019. Nitrogen Fertilization and Irrigation Frequency Affect Hydrangea Growth and Nutrient Uptake in Two Container Types. HortScience 54(1):1-8.

Rezazadeh, A., Harkess, R. L., Telmadarrehei, T. 2018. The Effect of Light Intensity and Temperature on Flowering and Morphology of Potted Red Firespike. Horticulturae 4(36):7.

Li, T., Bi, G., Harkess, R. L., Denny, G. C., Blythe, E. K., Zhao, X. 2018. Nitrogen rate, irrigation frequency, and container type affect plant growth and nutrient uptake of encore azalea 'Chiffon'. HortScience 53(4):560-566.

Zhao, X., Bi, G., Harkess, R. L., Blythe, E. K. 2016. Effects of Different NH4:NO3 Ratios on Growth and Nutritional Status in Iris Germanica 'Immortality'. HortScience 51(8):1045-1049.

Zhao, X., Bi, G., Harkess, R., Varco, J. J., Blythe, E. K. 2016. Spring Nitrogen Uptake, Use Efficiency, and Partitioning for Growth in Iris Germanica 'Immortality' . HortScience 51(5):563-566.

Zhao, X., Bi, G., Harkess, R. L., Varco, J. J., Li, T., Blythe, E. K. 2016. Nitrogen Fertigation Rates Affect Stored Nitrogen, Growth and Blooming in Iris germanica 'Immortality'. HortScience 51(2):186-191.

Rezazadeh, A., Harkess, R. L., Bi, G. 2016. Effect of plant growth regulators on growth and flowering of potted red firespike. HortTechnology 26(1):6-11.

Rezazadeh, A., Harkess, R. L., Bi, G. 2016. Effects of paclobutrazol and flurprimidol on water stress amelioration in potted red firespike. HortTechnology 26(1):26-29.

Akgul, A., Akgul, A., Roberts, S. D., Harkess, R. L., Diehl, S. V. 2016. Genetic variation in the FT1 locus involved in reproductive onset in Populus deltoides. . Tree Genetics Mol. Breeding 6(1):1-10.

Rezazadeh, A., Harkess, R. L., Bi, G. 2015. Stimulation of lateral branching of red firespike with dikegulac sodium, benzyladenine, and pinching. . HortTechnology 25(3):358-361.

Rezazadeh, A., Harkess, R. L. 2015. Effects of pinching, number of cuttings per pot, and plant growth regulators on height control of purple firespike. . HortTechnology 25(1):71-75.

Wang, X., Peebles, E. D., Morgan, T. W., Harkess, R. L., Zhai, W. 2015. Protein source and nutrient density in the diets of male broilers from 8 to 21 d of age: Effects on small intestine morphology. Poultry science 94(1):61-7.

Cochran, D. R., Harkess, R. L., Knight, P. R., Tomaso-Peterson, M., Blythe, E. K., Gilliam, C. H. 2014. Evaluation of a Commercial Extract of Giant Knotweed on Drought Tolerance of Impatiens. HortScience 49(8):1034–1040.

Adams, J. P., Adeli, A., Hsu, C. Y., Harkess, R. L., Page, G. P., Depamphilis, C. W., Schultz, E. B., Yuceer, C. 2012. Plant-based FRET biosensor discriminates environmental zinc levels. Plant biotechnology journal 10(2):207-16.

Burney, S., Tidwell, D. K., Hood, A., Schilling, M., Harkess, R. L., Briley, C. 2011. Determination of Antioxidant Activity and Total Phenolic Content of Pueraria Lobata and Evaluation of a Novel Food Product Containing Kudzu Flowers. Journal of the American Dietetic Association 111(9):A67.

Adams, J. P., Adeli, A., Hsu, C. Y., Harkess, R. L., Page, G. P., dePamphilis, C. W., Schultz, E. B., Yuceer, C. 2011. Poplar maintains zinc homeostasis with heavy metal genes HMA4 and PCS1. Journal of experimental botany 62(11):3737-52.

Harkess, R. L., Lyons, R. E. 1993. FLORAL INITIATION IN RUDBECKIA HIRTA UNDER LIMITED INDUCTIVE PHOTOPERIODIC TREATMENTS. HortScience 28(5):572e-572.