Better and more productive times now await the country's
fast-expanding hybrid rice industry.
Auguring well for this optimistic outlook is a headway achieved
in hybrid rice research chalked up by a scientific study
done with the support of the Department of Agriculture-Philippine
Rice Research Institute (DA-PhilRice), DA-Bureau of Agricultural
Research (BAR), and International Rice Research Institute
(IRRI).
The study, titled "Marker-aided selection for bacterial
blight resistance genes and against fertility restoring genes
in Mestizo hybrid rice (Oryzae sativa L.) maintainer and
cytoplasmic male sterile lines", was conducted by Joan
Marie Agarcio, PhilRice senior science research specialist.
The study was Agarcio's thesis for her Master of Science
in Genetics at UP Los Baños where she earned her MS
degree in 2005 as a DA-BAR scholar.
For some time, PhilRice and IRRI have faced some challenges
in promoting the Mestizo hybrid variety because of its susceptibility
to bacterial leaf blight (BLB), a destructive rice disease
caused by a bacteria (Xanthomonas oryzae pv. Oryxae (Xoo).
BLB has hitherto posed threats to the success of hybrid
rice seed production.
But Agarcio's research work could change this as she was
able to introduce genes into Mestizo parentals that confer
resistance on bacterial plant.
The study earned for the young and promising researcher
the 2005 Best Master of Science Thesis Award (Biotechnology
category) given by the Department of Science and Technology-Philippine
Council for Advanced Science and Technology Research and
Development (DOST-PCASTRD).
PCASTRD has cited the thesis for its "imminent impact
on hybrid rice farmers."
Results of the ongoing research have been discussed in international,
regional, and national conferences where Agarcio was invited
to present her study's findings.
Agarcio told this writer that the study is expected to be
completed this year.