Diversity Analysis Based on Morphological Traits of Different Mango Accessions Collected from Selected Areas in the Philippines


  • Carolyn E. Alcasid
  • Lavernee S. Gueco
  • Lolita DC. Valencia Institute of Plant Breeding - Crop Science Cluster College of Agriculture - University of the Philippines


accessions, diversity, IPGRI Descriptors for Mango, MangiferaindicaL., Shannon-Weaver Diversity Index


Morphological variation and diversity of different mango accessions across seven mango growing areas in the Philippines was assessed and analyzed using Shannon-Weaver Diversity Index (SWDI). The fruits from 208 mango collections were characterized using International Plant Genetic Resources Institute (IPGRI) Descriptors for mango and evaluated for diversity using SWDI on the basis of 21 morphological traits, eight of which were qualitative and 13 were quantitative traits. Most mango varieties and accessions had elliptic fruit shape, good to average fruit attractiveness, yellow skin, yellow orange pulp, intermediate texture, juicy, mild aroma, and very good eating quality.Fourteen percentwere observed to have a red skin color in different shades which varies from greenish yellow with red blush to reddish purple.Based on the result of descriptive statistics, significant variation was observed in 13 quantitative traits from among 208 mango accessions evaluated. The mean SWDI for qualitative traits was H’ = 0.63 with pulp aroma being the most diverse (H’=0.84)and skin color of ripe fruit being the least diverse (H=0.37). Significant diversity (H’=>0.70)was also observed in all quantitative traits except for fruit thickness having H’=0.61 diversity index. The mean SWDI for both qualitative and quantitative traits was H’= 0.70 indicating a high level of diversity. This level of diversity among mango accessions studied indicated that these accessions could be very useful in enriching the mango germplasm and utilizing these valuable accessions for varietal improvement mango breeding program.


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How to Cite

Alcasid, C. E., Gueco, L. S., & Valencia, L. D. (2015). Diversity Analysis Based on Morphological Traits of Different Mango Accessions Collected from Selected Areas in the Philippines. Asian Journal of Agriculture and Food Sciences, 3(6). Retrieved from https://www.ajouronline.com/index.php/AJAFS/article/view/3363