Joel DLC. Siopongco, Ph.D.

Associate Professor 5
Physiology Academic Group Member
Ph.D. Agricultural Science,
Research Lab


Biology 1 (ContemporaryTopics in Biology)

Biology 115 (Taxonomy of Angiosperms)

Biology 220 (Chemical Physiology)

Biology 101 (Plant Morpho-Anatomy)

Biology 221 (Advanced Plant Physiology)

Biology 224 (Stress Physiology)

Biology 296 (Seminar)

Biology 395 (Advance Studies ln Biology)



Plant systematics, ecology and biodiversity; Crop physiology; Climate-Smart Agriculture





  • Menge, D., Kameoka, E., Kano-Nakata, M., Yamauchi, A., Asanuma, S., Asai, H., Kikuta, M., Suralta, R., Koyama, T., Tran. T.T., Siopongco, J.DLC., Mitsuya, S., Inukai, Y., Makihara, D. 2016. Drought-induced root plasticity of two upland NERICA varieties under conditions with contrasting soil depth characteristics. Plant Prod. Sci. 19: 389-400.
  • Haefele, S.M., Banayo, N.P.M., Amarante, S.T., Siopongco, J.D.L.C. and Mabesa, R.L. 2013. Characteristics and management options for rice-maize systems in the Philippines. Field Crops Research, vol. 144, pp. 52-61.
  • Kano-Nakata, M., Inukai, Y., Wade, L.J., Siopongco, J.D.L.C. and Yamauchi, A. 2011. Root development and water uptake, and shoot dry matter production under water deficit conditions in two CSSLs of rice: Functional roles of root plasticity. Plant Prod. Sci. 14: 307-317.
  • Haefele, S.M., Siopongco, J.D.L.C., Amarante, S.T. and To Phuc Tuong, 2010. Effect of abiotic stresses on the nondestructive estimation of rice leaf nitrogen concentration. International Journal of Agronomy. Article ID 863605, 11 pages. doi:10.1155/2010/863605 (online only)
  • Siopongco, J.DLC., Sekiya, K., Yamauchi, A., Egdane, J., Ismail, A.M. and Wade, L.J. 2009. Stomatal responses in rainfed lowland rice to partial soil drying; comparison of two lines. Plant Prod. Sci. 12: 17-28.
  • Haefele, S.M., Siopongco, J.D.L.C., Boling, A.A., Bouman, B.A.M. and Tuong, T.P. 2009. Transpiration efficiency of rice (Oryza sativa L.). Field Crops Research. 111: 1-10.
  • Wang, H., Siopongco, J., Wade, L.J., Yamauchi, A. 2009. Fractal analysis on root systems of rice plants in response to drought stress. Environ. Exp. Bot. 65 : 338-344.
  • Jabbar, S.M.A., Sta. Cruz, P.C., Siopongco, J.D.L.C., Cosico, W.C., Sanchez, P.B., Amarante, S.T. and Haefele, S.M. 2009. Genotypic differences in grain yield and nitrogen uptake of lowland rice (Oryza sativa L.) under irrigated and rainfed conditions. Philip. J. Crop Sci. 34(1): 22-37.