Ex situ conservation of agro-biodiversity of major food legumes in the Philippines

International Conference on Green Agro-industry and Bioeconomy

农业科学;工业技术（总论）;经济学

Borines, N.O.M.^1 ; Borromeo, T.H.^2 ; Dr De Chavez, H.^3 ; Capistrano, M.P.^3

Caraga State University, Agusan Del Norte, Philippines^1

Institute of Crop Science, University of the Philippines, Los-Banos-Laguna, Philippines^2

National Plant Genetic Resources Laboratory, University of the Philippines, Los-Banos, Philippines^3

关键词: Breeding program;    Continuous development;    Crop productivity;    Diversity analysis;    Diversity index;    Green revolution;    Morphological diversity;    Quantitative traits;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/230/1/012113/pdf
DOI  :  10.1088/1755-1315/230/1/012113

来源: IOP

【 摘 要 】

The increase in crop productivity brought about by the Green Revolution has inspired the continuous development and release of more profitable varieties in most crops. The adoption of these varieties however, displaced many traditional cultivars and landraces in production areas. On-farm agro-biodiversity have been threatened and/or lost for decades. To address this, the National Plant Genetics Resources Laboratory (NPGRL) collected and conserved a considerable amount of agricultural diversity across the country. Food legumes which include mungbean, peanut, and soybean are among the most important crops conserved at NPGRL. The study aims to: i) elucidate the importance of ex situ conservation in relation to breeding, selection, and crop production; and ii) characterize and assess the agro-biodiversity of three major food legumes conserved in the National repository in one season. Food legumes were characterized at the Institute of Plant Breeding (IPB) experimental area for one season. Morphological diversity of the accessions was assessed using Shannon-Weaver's Diversity Index (H') for both qualitative and quantitative traits. Based on diversity analyses, mungbean (43 descriptors), has an index (H') ranging from 0 to 0.98 with seed surface luster as the highest. In peanut (42 descriptors), H' ranged from 0 to 0.90 with peg color as the highest. For soybean (41 descriptors), H' ranged from 0 to 0.98 with flower standard color as the highest. The high diversity found in the food legumes accessions indicates their potentials for future use in the legumes breeding programs.