Contribution in biology of Emerita V de Guzman?

Dr. De Guzman was lauded for her outstanding contribution on the growth and development, in vitro, of the makapuno coconut embryo, resulting in a faster propagation of pure macapuno trees. As a result of this effort, she has revolutionized the old ratio of the makapuno-bearing nuts in the tropics which produce only 3-5 makapuno nuts in every raceme bearing 14-19 nuts. Dr. de Guzman produced 100% all makapuno-bearing in the raceme. Aside from these, she is also recognized for devising tissue culture techniques for rapid propagation of abaca and banana.