Emerita De Guzman. Filipino scientist Emerita De Guzman researched the propagation of pure makapuno trees. In particular, she studied the growth and development, in vitro, of the makapuno coconut embryo. Emerita De Guzman research led to the faster propagation of pure macapuno trees and increased makapuno nut production from 3-5 makapuno nuts to 14-19 nuts. Emerita De Guzman also invented tissue culture techniques for the rapid propagation of abaca and banana plants. Emerita De Guzman - Awards: Rizal Pro Patria award 1976, SEARCA professional Chair in Plant Physiology 1974-1976, Outstanding Scientist Award of the Philippine Association for the Advancement of Science 1976, and Professional Award for agriculture of the UP Alumni Association, 1977. Bachelor's degree in Botany from the University of the Philippines in 1953, MS degree in Plant Physiology from Cornell University in 1956, Ph.D. in Plant Physiology from Cornell University in 1961.