Phenotypic and Genetic Diversity Evaluation of Sengon (Falcataria moluccana (Miq.) Barneby & JW Grimes) from Solomon Provenance on Progeny Trial in Cirangsad Experimental Forest, West Java

Abstract

Initial evaluation of phenotypic variability and genetic diversity was conducted on the progeny test of 2 years-old sengon from Solomon provenance, which derived from nine families of mother tree and were then planted in 4 blocks in the Cirangsad Experimental Forest. Phenotypic assessment on eight traits was conducted on 36 trees using a scoring system, while genetic diversity of 15 selected individuals which represented high and low-score phenotypic traits was analyzed using 5 selected RAPD primers. The result on phenotypic assessment showed that family 3 (57.25 points) has the highest average score of phenotypic quality and family 4 has the lowest average score (7.50 points). Furthermore, genetic analysis showed that the low-scoring sengon population had a greater mean genetic diversity (He = 0.2535) than the high-score population (He = 0.2345). The analysis of molecular variance (AMOVA) revealed a significant genetic differences (p-value < 0.001) among high and low-score populations and the dendrogram of genetic distance revealed clustering of individuals having similar superior phenotypic against those having non-superior, indicating the selection based on phenotypes in this study had succeeded in pooling the good quantitative alleles in the selected population. This evaluation results can be used as a reference in determining the best families to produce superior sengon (from Solomon provenance) offspring in the future that have desired adaptability, productivity, and diversity.

The growth of sengon (Parasarienthes falcataria) and citronella (Cymbopogon nardus) productivity performance in agroforestry system

“…Each provenance of sengon has different growth abilities. Dwiyanti et al (2021) state that plant provenance affects its ability to deal with interactions and the quality of its genes. Sengon developed in agroforestry systems has better growth than monoculture cultivation (Susanto et al 2019).…”

Biotechnology for Tropical Plant Breeding in SEAMEO BIOTROP

“…Microsatellite markers were utilized in studying the Sengon (Falcataria moluccana) resistance to gall rust disease [5]. Previous RAPD markers could not differentiate accessions showing different resistance and susceptibility against gall rust disease [6]. SSR markers which usually give higher polymorphisms than RAPD and more stable results could be used to evaluate the germplasm diversity.…”