Genetic diversity of pigmented rice accessions as revealed by morpho-agronomic characters

Issue Date

7-2018

Abstract

The Philippines is endowed with a great diversity of rice germplasm in its territorial land area. Part of these thousands germplasm are pigmented rice that are currently conserved at PhilRice [Philippine Rice Research Institute] Genebank. Pigmented rice accession are known for its great health promoting benefits. Various studies indicated that red and black rice possess better healthy components compared to the common white rice. However, studies on the diversity of these pigmented rice has not been explored. Understanding the population structure and range of diversity in available germplasm is fundamental for varietal improvement programs. Thus, this study was conducted to characterize selected pigmented rice accessions stored at PhilRice Genebank using the standard descriptors for cultivated rice. Among the 362 pigmented rice accessions assessed, 85% were red, 5% were purple, and 10% were variable purple. Most of the pigmented germplasms have intermediate endosperm. Moreover, Lagage-N has the heaviest grain, Binibe has the most number of filled grains, and Palawenyo has the longest panicle among the rest of the accessions. Generated data from this study will identify the potential germplasm with desirable traits for direct and indirect utilization. Furthermore, this will contribute towards creating genetic database for breeding programs strategies in the region.

Source or Periodical Title

Philippine Journal of Crop Science

ISSN

0115-463X

Volume

43

Issue

Supplement no. 1

Page

97

Document Type

Article

College

College of Agriculture and Food Science (CAFS)

Language

English

Subject

Rice varieties; Genetic diversity

En – AGROVOC descriptors

ORYZA SATIVA; VARIETIES; GERMPLASM; GENETIC VARIATION; PIGMENTATION; AGRONOMIC CHARACTERS

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