Growth diversity, heritability, and genetic correlation of 2-year-old of manglid (Manglietia glauca Bl.) progeny test in Candiroto, Temanggung, Central Java

Abstract

Manglid, an Indonesian flora, is highly sought after due to its high public interest in planting it. It is necessary to develop superior seed sources to increase the plant’s productivity. This study aimed to determine variations in plant growth, heritability, and genetic correlation of Manglid plants in a 2-year-old progeny test in Candiroto. A Randomized Completely Block Design with two components population and family used in this study. Families are nested within the population. There are 3 populations and 100 families; 15 of the 100 families were from Tasikmalaya, 10 were from Sumedang, and 75 were from Sukabumi. Plant height and stem diameter were measured. The analysis revealed a significant relationship between population, family, and family within the population and plant height and stem diameter development. Sumedang populations had the best height and diameter at 4.19 meters and 6.15 centimeters, with 27 differences in height growth and 24 variances in diameter growth at the family level. The estimated individual heritability for height was 0.21, while for stem diameter it was 0.17. The family heritability for height and stem diameter was 0.52 and 0.49, respectively. A 0.83 genetic correlation was found between height and diameter.