The one of identification system using morphophysiological analyses for breeding program Mahogany is needed. Mahogany (Swietenia macrophylla) is a tree species which is easy to cultivate as it is able to thrive in a great variety of habitats and soil types. Here, we present a study on the relationship between morphological and physiological parameters on S. macrophylla. The study was carried out in a seed orchard of Mahogany in genetic resource area of 2nd Forest Seed/Seedling Office, Gowa district, South Sulawesi, Indonesia, in October 2017 up to March 2018. Morphological and physiological analyses were performed on 31 S. macrophylla leaf samples. The morphological parameters consisted of leaf color, leaf shape, leaf tip, leaf base, leaf margin, upper leaf surface texture, leaf venation, and tree diameter. Meanwhile, the physiological ones were chlorophyll content, leaf area, and water content. Leaf samples were divided into three colors, two leaf shapes, and three leaf base shapes. They also had tapered leaf tip, pinnate venation, and glabrous leaf surface. The chlorophyll content and leaf area had a very low coefficient correlation, whereas leaf area and water content showed very high coefficient correlation. The relation between morphology and physiology could be determined by the correspondence between chlorophyll content and leaf color. The higher chlorophyll content, the greener the observed leaf.

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Indonesia is a mega-diversity country with numerous endemic plants distributed throughout its regions. An Indonesias’ island with the unique and the highest endemic plant species due to being located in the Wallace area is Sulawesi Island. Hopea celebica, an endemic species to Sulawesi Island, is currently categorized as endangered by IUCN. Here, we selected the ISSR primers suitable for the genetic study of H. celebica from Luwu and Konawe provenances and investigated their genetic diversity. Ten ISSR primers were employed in primer screening, and fifty H. celebicaindividuals were genetically analyzed for their genetic diversity. The selected ISSR primers for genetic diversity analysis were UBC 810, UBC 813, UBC 814, UBC 820, UBC 822, UBC 823, and UBC 827. The evaluated H. celebica individuals have high genetic diversity, and this information will be beneficial for designing H. celebica breeding and conservation strategies

This study aimed to determine the combination of plant growth regulators (PGR) that affects the growth of three provenances of Jabon merah through in vitro culture. This research was conducted in December 2017 to March 2018 at Biotechnology and Tree Breeding Laboratory, Hasanuddin University, Makassar. Research step consisted of sterilization, stock solutions and culture media preparation, and planting. The observation parameters were plant height, time of leaf formation, number of leaf, leaf length, number of root, root length, and percentage of dead explant. The results obtained from this observation were (1) the provenance significantly affected the time of leaf formation, number of root, root length, and percentage of explant explant, (2) the combination of PGR significantly affected the number of roots and root length, (3) the interaction between PGR and provenance was of a significant effect on the root length, (4) The combination of 1 ppm IBA and 0.5 ppm TDZ showed the best PGR in increasing the root length, (5) combination of 3 ppm IBA and 0.5 ppm TDZ increased the number of root, and (6) Sidrap Provenance was the best PGR based on the number of roots, root length and low mortality rate.

Cashew (Anacardium occidentale L), a species belonging to the family Anacardiaceae, has been cultivated throughout most of Indonesia’s areas and has become a priority commodity in Southeast Sulawesi for years. However, the information about its variation on morphology and relationship among individuals are still limited. This study aimed to determine the morphological variations and relationships among cashew individuals in three districts (Konawe, South Konawe, and East Kolaka) of Southeast Sulawesi. As many as ninety individuals were analyzed on 15 morphological variables for the variations and 47 variables using the complete linkage method based on Gower distance for the clustering. The coefficients of variation were varied on all evaluated variables. The highest was the height of main branches (cm), ranging from 47.32 % to 73.72 %. Meanwhile, nut length had the lowest coefficient of variation (6.75%-7.99%). The individuals were divided into two main clusters with two sub-clusters for each cluster.