inside front cover-23-2.pmd


EDITORIAL BOARD

Editor-in-Chief
Marco Nemesio E. Montaño, Ph.D.

Associate Editors

Ma. Patricia V. Azanza, Ph.D.
Food Science & Nutrition

Jose Maria P. Balmaceda, Ph.D.
Mathematics

Zubaida U. Basiao, Ph.D.
Biology

Carlos Primo C. David, Ph.D.
Earth Sciences

Joel Joseph S. Marciano, Jr., Ph.D.
Computer Science, Engineering

Giovanni A. Tapang, Ph.D.
Physics

Irene M. Villaseñor, Ph.D.
Chemistry

Violeda A. Umali, Ph.D.
Director, RDUO

Corazon D. Villareal, Ph.D.
Managing Editor

Dercylis G. Mararac
Editorial Assistant

SCIENCE DILIMAN (ISSN 0115-7809) is published bi-annually by the
Research Dissemination and Utilization Office (RDUO) of the Office of
the Vice Chancellor for Research and Development (OVCRD), University
of the Philippines Diliman. Address all communications to the Editor in
Chief, SCIENCE DILIMAN, Research Dissemination and Utilization
Office, Office of the Vice Chancellor for Research and Development,
Lower Ground Floor, Phivolcs Bldg., C. P. Garcia Ave., University of the
Philippines, Diliman, Quezon City 1101 Philippines.

Subscription Rates: P300.00/year (two issues), exclusive of postage
US$ 25.00/year (two issues), exclusive of postage

Tel. No: (632) 981-85-00 loc. 4048
(632) 436-87-20

TelFax: (632) 927-2568
E-mail: rduo.ovcrd@up.edu.ph
Website: http://www.ovcrd.upd.edu.ph

SCIENCE   DILIMAN
A Journal of Pure and Applied Sciences

EDITORIAL  ADVISORS

Rigoberto C. Advincula, PhD.
Dept. of Chemistry
University of Houston
radvincula@uh.edu

Alfonso M. Albano, PhD.
Dept. of Physics
Bryn Mawr College, Bryn Mawr, Pennsylvania
aalbano@brynmawr.edu

Jose B. Cruz, PhD.
Dept. of Electrical and Computer Engineering
Ohio State University
cruz@ece.osu.edu.

Victor C. Gavino, PhD.
Dept. of Nutrition
University of Montreal, Canada
victor.gavino@umontreal.ca

Kelvin S. Rodolfo, PhD.
Dept. of Earth and Environmental Sciences
University of Illinois, Chicago, Illinois
krodolfo@uic.edu

Rudolf A. Roemer,  PhD.
Centre for Scientific Computing and Dept. of Physics
University of Warwick
r.roemer@warwick.ac.uk

Luis G. Sison, PhD.
Electrical and Electronics Engineering Institute
University of the Philippines, Diliman
luis.sison@up.edu.ph

Raul K. Suarez, PhD.
Dept. of Ecology, Evolution and Marine Biology
University of California, Sta. Barbara
suarez@lifesci.ucsb.edu

COVER PHOTO
“Samples of each morphotype of P. grandiflora (Hook). (a.1.) Double Orange Petal,
(b.1.) Single Pink Petal (c.1.), Double Pink Petal (d.1.), Double Pink-White Petal
(e.1.), Single Yellow Petal (a.2.), Double Orange Sepal (b.2.), Single Pink Sepal
(c.2.), Double Pink Sepal (d.2.), Double Pink-White Sepal (e.2.),Single Yellow Sepal
(a.3.), Double Orange Leaf (b.3.), Single Pink Leaf (c.3.), Double Pink Leaf (d.3.),
Double Pink-White Leaf (e.3.),Single Yellow Leaf.  Figure was taken from Cao et al.
p. 41-53 of this issue.”

Contents of this journal may not be reproduced without the publisher’s written
permission except for fair use, i.e., for personal, educational and research purposes, in
accordance with Copyright law. Reprinting and re-publication in any other journal or
compilation is likewise prohibited except as provided in the Copyright Agreement
when the author reprints his/her article for inclusion in any publication where he/she
is the author or editor, subject to giving proper credit to the original publication of the
article in the journal.