B.S. Biotechnology, Nanjing Agricultural University, Nanjing, China
M.S. Developmental Biology, Nanjing Agricultural University, Nanjing, China
Ph.D. Agronomy, Texas A&M University, College Station, TX
Professional Experience
Assistant scientist/post-doctoral researcher, Kansas State University Agricultural Research Center, Hays, KS
Research Interest
Integrated weed management practices for vegetable and specialty crop production Columbia Basin
Biology and ecology of herbicide- resistant weed species
Recent Publications
Liu, R., Kumar, V., Jha P., Stahlman P.W. (2022) Emergence pattern and periodicity of Palmer amaranth (Amaranthus palmeri) populations from southcentral Great Plains. Weed Technology, 36:1-8
Liu, R., Singh, V., Abugho S., Lin H., Zhou X., Bagavathiannan, M.V. (2022) Morphophysiological diversity and its association with herbicide resistance in Echinochloa Weed Science, 70:26-35
Liu, R., Kumar, V., Jhala A., Jha P., Stahlman P. W. (2021) Control of glyphosate- and 4-hydroxyphenylpyruvate dioxygenase (HPPD)-inhibitor-resistant Palmer amaranth (Amaranthus palmeri) in glufosinate-resistant corn. Agronomy Journal, 113:5362-5372
Kumar, V., Liu, R., Jhala A. J., Jha P., Manuchehri M. (2021) Palmer amaranth (Amaranthus palmeri) control in postharvest wheat stubble in the Central Great Plains. Weed Technology, 36:945-949
Kumar, V., Liu, R., Currie, R.S., Jha, P., Morran, S., Gaines, T., Stahlman P.W. (2021) Cross-resistance to atrazine and metribuzin in multiple herbicide-resistant kochia accessions: confirmation, mechanism, and management. Weed Technology, 35:539-546
Liu, R., Singh, V., Zhou, X., Bagavathiannan, M.V. (2020) Stakeholder and field surveys on weed issues and research needs in rice production in Texas. Weed Technology, 35:242-250.
Kumar, V., Liu, R., Manuchehri, M.R., Westra, E.P., Gaines, T.A., Shelton, C.W. (2020) Feral rye control in quizalofop-resistant wheat in Central Great Plains. Agronomy Journal, 113:407-418.
Kumar, V., Liu, R., Peterson, D.E. and Stahlman, P.W. (2020) Effective two-pass herbicide programs to control glyphosate-resistant Palmer amaranth (Amaranthus palmeri) in glyphosate/dicamba-resistant soybean. Weed Technology, 35: 128-135.
Kumar, V., Liu, R., Stahlman, P.W. (2020) Differential sensitivity of Kansas Palmer amaranth to glyphosate, chlorsulfuron, 2, 4-D, dicamba, atrazine, and mesotrione. Agronomy Journal, 112:2153-2163.
Kumar, V., Liu, R., Boyer, G., Stahlman, P.W. (2019) Confirmation of 2,4-D resistance and identification of multiple resistance in a Kansas Palmer amaranth (Amaranthus palmeri) population. Pest Management Science, 75: 2925-2933.
