White Jabon Research Articles

The potential of dark septate endhophyte fungus from white jabon (Neolamarckia cadamba (Roxb.) Bosser)

Endophytic fungi are one of the forest microbes that can be solutions for increasing the resistance of forest plants to environmental stress. Exploration and collection of endophytic fungi from the forest is important because the condition of the forest as a natural habitat for microbes has been disturbed due to degradation and deforestation. A potential plant species for forest and land rehabilitation is white jabon (Neolamarckia cadamba (Roxb.) Bosser). The research objective was to isolate and characterize endophytic fungi and to obtain the dark septate endhophyte from the roots of the white jabon which have the potential to increase plant growth. The fungus was isolated by surface sterilization method and then characterized and identified morphologically. Pathogenicity test was carried out to determine the pathogenicity of the fungus. The results of the study found ten isolates. Most of the isolated fungi showed sterile mycelia with septate hyphae, so they were not identified morphologically. The isolate of CPGS 3 isolates probably belonged to the genus Aureobasidium sp. CPGS 3, CPKR 6, and CPPS 11 isolates are candidates for dark septate endophyte fungi which have the potential to promote plant growth and not become pathogens in chinese cabbage (Brassica rapa).

Environment’s effect on wood characteristics of white jabon grown in West Java and Banten area, Indonesia

This study analyzed the diversity of physical properties and mechanical properties of white jabon (Neolamarckia cadamba (Roxb.) Bosser) from various locations and ecological conditions in West Java and Banten Indonesia. White jabon wood samples were taken from 8 locations in West Java and the Banten region. Tree ages ranged from 5 to 6 years. This wood was then tested to compare physical characteristics (density or specific gravity) and mechanical characteristics (modulus of rupture (MOR) and modulus of elasticity (MOE)). The results showed that wood density ranged from 0.29 to 0.43 g.cm-3, MOR ranged from 361 to 641 kg.cm-2, and MOE ranged from 31,117 to 58,910 kg.cm-2. The highest density average (0.43 ± 0.004 g.cm-3) was produced from Cianjur, and the lowest density average (0.29 ± 0.010 g.cm-3) was from Tanjungsari Sumedang. Environmental factors (precipitation and altitude) affect the density of wood. Separately, rainfall has a low effect and a negative relationship to jabon wood density, while altitude has a high influence and a negative relationship to jabon wood density. Andosol soil types tend to produce low density wood.

Extractives Content of White Jabon (Neolamarckia cadamba) and Red Jabon (Neolamarckia macrophyllus) Stemwood from Wonogiri, Central Java

Jabon is a fast-growing tree species with two types, white and red. The families or the origin of the mother tree are sources of variation that influence the chemical composition, particularly the extractive properties. This research aimed to determine the chemical properties of the wood and bark of 10-year-old white Jabon (families 23, 11, and 6) and 5-year-old red Jabon (families 75, 85, and 2) planted in a progeny test plot in Wonogiri, Central Java. In the wood portion of white Jabon, family 23 had the highest n-hexane (HEC), methanol (MEC), and hot water (HWEC) soluble extractive contents, as well as total extractive content (TEC) and total flavonoid content (TFC), while family 6 had the highest total phenolic content (TPC). Meanwhile, in red Jabon, family 75 had the highest HEC, HWEC, and TFC, family 2 had the highest MEC and TEC, and family 85 had the highest TPC. In the bark portion, family 11 had the highest HEC, MEC, TEC, and TPC, while family 6 had the highest HWEC and TFC for white Jabon. In red Jabon, family 2 had the highest HEC, family 85 had the highest MEC, HWEC, and TEC, while family 75 had the highest TPC and TFC.

Performance of seedling and mixed-species planting test of three species of Rubiaceae treated by different seedling media and mycorrhizae application

Seedling growth in the nursery and early field performance of three fast-growing tree species from the Rubiaceae family, i.e., white jabon (Neolamarckia cadamba), red jabon (Neolamarckia macrophylla, and gempol (Nauclea orientalis), were tested by using different seedling media and arbuscular mycorrhizal fungi (AMF) treatments in the nursery and mixed-species field tests. The experiment design in the nursery and field test was laid out following a split-split plot design of a randomized complete block with four replications. The main factors were tree species, the sub-factors were seedling media, and the sub-sub factors consisted of the AMF inoculation, with a mixed species planting pattern. White jabon had a more dominant growth both at the seedling level in the nursery and at the field test level until the age of 2 years, followed by gempol and red jabon. AMF inoculation in those three species at the seedling level was strongly influenced by the characteristics of the seedling media like media with high fertility levels resulting in a very low percentage of AMF colonization. In the field trial, all tree species and treatments were infected with mycorrhizae with colonization percentages ranging from 27.6% to 57.7%, which was suspected to be an infection from native AMF in the planting site. The AMF application had a significant effect on the percentage of colonization and tree diameter growth of 2-year-olds with a percentage increase of 14.4% and 8.4%, respectively.

Influence of different hot-pressing conditions on the performance of eco-friendly jabon plywood bonded with citric acid adhesive

ABSTRACT The citric acid (CA)-based adhesive, as a new environment-friendly adhesive, has been developed and used for the manufacturing of plywood to resolve the problem of formaldehyde-based adhesive for human health. The effects of pressing time and temperature on physical and mechanical properties of plywood were examined. Three-layer plywood panels were bonded using CA adhesive with a 134 g/m2 of single glue spread on White jabon wood veneer. The plywood panels were hot-pressed at 5 MPa with three different pressing temperatures, 180°C, 190°C, 200°C, for 10 min, and also different pressing times, 4, 7, 10 min at 190°C. The physical and mechanical properties, such as moisture content, delamination, and shear strength, were evaluated according to JAS 233:2003. The results show that the plywood with pressing temperature of 190°C for 10 min had lower delamination and greater tensile shear strength than those of other plywood panels. Moreover, some properties of the plywood fulfilled the requirement of JAS 233:2003. Based on the FTIR analysis, citric acid plays an important role in the formation of ester linkages (R-COO-R) via esterification between carboxyl groups of citric acid and hydroxyl groups of White jabon wood veneer, resulting excellent properties of plywood.

INVIGORASI BENIH JABON PUTIH (Neolamarckia cadamba (Roxb.) Bosser) MENGGUNAKAN POLYETHYLENE GLYCOL DAN ULTRA FINE BUBBLES

Polyethylene glycol (PEG) and ultrafine bubbles (UFB) can be used to increase seed germination and its vigor. The purpose of this study was to examine the effect of PEG - 6000 and UFB on the seed germination and vigor of white jabon after 7 years of storage. This study used a completely randomized design with factorial pattern using two factors , i.e. provenances ( Alas Purwo, Kapuas, Kampar, Pomalaa ) and invigoration treatment s (seed without treatment , PEG -0.8 MPa for 24 h, PEG -1.2 MPa for 24 h, UFB (operating 30 min) for 24 h, UFB (operating 30 min) for 48 h, UFB (operating 55 min) for 24 h, UFB (operating 55 min) for 48 h ) . UFB treatments had a better effect on white jabon seeds germination compared to PEG. Interaction of Pomalaa provenance seed with soaking in UFB (operating 55 min) for 24 h gave the best germination capacity (87 % ), germination value (7.35), and seed germination speed (7.39 % day -1 ) . While for the very low seed vigor (seed from Alas Purwo, Kampar and Kapuas), the treatment of soaking in UFB water (operating 30 min) for 48 h improve d the germination capacity of seed from Alas Purwo (35.50%), Kapuas (35.25%), and Ka m pa r ( 14.75% ).

Determination of Seed Density of Several Forest Trees Species to Improve the Successful Seed Germination

The success of tree seed germination for planting programme depends on several factors including tree seed density for seed sowing. The purpose of this study was to determine the seed density based on the level of seed aging to increase the success of seed germination of several forest tree species, namely white jabon (Anthocephalus cadamba (Roxb) Miq.), bambang lanang (Magnolia champaca Linn.), jelutung (Dyera polyphylla Miq.), kayu bawang (Azadirachta excelsa (Jack) Jacobs), and trema (Trema orientalis Linn. Blume).The seed density treatments covered 5 phases (d0, d1, d2, d3, d4) based on the germination percentage (GP). Seedlots variation was derived from 5 seed aging treatments (0, 48, 96, 144, and 192 hours).The determination of seed density was based on Kartika’s formula (1994).The results showed: (1) seed density of white jabon was 0.1g of seed/300cm2 with pure live seeds (PLS) of 1140 seedlings/ 0.1g of seed; (2) seed density of bambang lanang was 100 seeds/300 cm2 with GP of 58%; (3) seed density of jelutung seeds with 85% of GP was 50 seeds/600cm2; (4) seed density of kayu bawang with 83% of GP was 50 seeds/600 cm2 and (5) seed density of trema with 78% of GP was 100 seeds/600cm2. The longer the time of seed aging, the lower the value of germination percentage. Therefore,the lower the germination percentage, the seed density will be more tight.

PERTUMBUHAN STEK PUCUK JABON PUTIH (Anthocephalus cadamba (Roxb.) Miq.) DENGAN PERENDAMAN MENGGUNAKAN EKSTRAK KECAMBAH KACANG HIJAU (Vigna radiata)

White jabon (Anthocephalus cadamba (Roxb.) Miq) are plants with high economic value. It can be propagated vegetatively using its shoot cuttings. One of the way to enhance the growth of shoot cuttings by submersion in green bean sprout extract was expected to produce shoot cuttings with better growth. This study aimed to determine the submersion effect of white jabon (A. cadamba) shoot cuttings in green bean (Vigna sinensis) sprout extract. The Completely Randomized Design (CRD) consisted of 5 levels of treatment were used. The cuttings were submerged in extract concentrations of 0%, 25%, 50%, 75%, and 100%. The study parameters of number of roots and leaves, plant height, wet and dry weight were observed. The results showed that the concentration treatment with 75% green bean sprout extract produced 9,25±2,50 root strands, 5,75±0,50 leaves, plant height of 20,13±1,11 cm, wet weight of 12,39±3,62 g, and dry weight of 1,51±0,42 g.

The Application of Silviculture Techniques on White Jabon (Neolamarckia cadamba Miq) by The Farmers of Community Forest in Konawe Regency, Southeast Sulawesi

This study aimed to determine the silvicultural techniques that applied by four farmers in private forest of white jabon and to know the growth of white jabon in Konawe. This study was conducted at four locations namely Sub District of Unaaha District of Unaaha, Wawoone Village, Tetemotaha Village and Langgonawe Village of Wonggeduku District, Konawe, Southeast Sulawesi Province. This study took place from May until October 2016, and was carried out in three phases namely choice of location, interviews with owners and Jabon stand inventory. The results showed that farmers in Konawe was planting white Jabon (Neolamarckia cadamba Miq.) without Jabon silvicultural techniques, special training. The farmers’s knowledge cultivating through books, Internet access and other farmers. Silvicultural techniques which applied by farmers were included seedlings originating, land preparation, planting, and maintenance included replanting, weeding, fertilizing, pest and disease control and thinning.

KONTRIBUSI KOMPOSISI VEGETASI DALAM PENYIMPANAN DAN SERAPAN KARBON DI HUTAN RAKYAT DESA NEGARA RATU II KECAMATAN NATAR KABUPATEN LAMPUNG SELATAN

Tree stands in community forest have potential to absorb carbon in the air by storing in the body parts of the tree. This study aims to determine the effect of community forest’s stand types on the number of reserves and carbon uptake. The sampling method used is the cluster sampling method to determine the sample. Biomass data are collection destructive and non destructive methods. Estimation of biomass is carried out using the allometric equations. Measurement of carbon content using the formula from BSN (2011) x 0.47. Comparative analysis of carbon reserves and removals uptake using the variance test and 5 % BNT test. Public forests in the Negara Ratu II village with gold teak stands have carbon reserves and removals (135.87 tons/ha and 499,00 ton/ha). the most significant compared to community forests with other types of stands. While the reserve value and carbon uptake between white teak (44.86 tons/ha and 164.63 tons/ha), acacia (54.13 tons/ha and 191.20 tons/ ha), red jabon (51.20ton/ha and 187.90 tons/ha), white jabon (59.51 tons/ha and 218.40 tons/ha), is no different.

Growth performance and wood quality of white jabon (Neolamarckia cadamba) progeny testing at Parung Panjang, Bogor, Indonesia

Abstract. Chaerani N, Sudrajat DJ, Siregar IZ, Siregar UJ. 2019. Growth performance and wood quality of white jabon (Neolamarckia cadamba) progeny testing at Parung Panjang, Bogor, Indonesia. Biodiversitas 20: 2295-2301. The aim of this study was to evaluate the genetic parameters of growth and wood quality in white jabon progeny test at 54 months old in Parung Panjang, Bogor. The 105 half-sib families obtained from 12 provenances were evaluated in a randomized complete block design with five replications. Wood quality was assessed both in a non-destructive way using a pilodyn and by destructive method using wood sample taker. Results indicated that the mean value ranged from 5.10 to 10.15 m for height, 6.67 to 15.30 cm for diameter, 2.30 to 3.62 cm for pilodyn penetration, 0.66 to 0.82 g/cm3 for wood density, 0.33 to 0.50 for specific gravity, and 66 to 111 % for moisture content, respectively. There were significant differences among 105 families for all traits except moisture content. The high heritability estimate was found for height (0.4-0.69) and basic density (0.27-0.59). Applying 80% selection intensity on diameter and leaving 84 best families in each block will produce a high total genetic gain. Pilodyn penetration had negative correlation with diameter, wood density, and specific gravity.

Genetic diversity in the growth of white jabon (Neolamarckia cadamba) provenance-progeny test: Comparing study in the nursery and field

Abstract. Sudrajat DJ, Yulianti, Danu, Rustam E, Suwandhi I. 2019. Genetic diversity in the growth of white jabon (Neolamarckia cadamba) provenance-progeny test: Comparing study in the nursery and field. Biodiversitas 20: 1325-1332. Results of the provenance-progeny test in seedling and field test of white jabon (Neolamarckia cadamba) at Parung Panjang, Bogor District, West Java Province, Indonesia are reported and discussed. Twelve provenances representing 105 families were tested in nursery and field using randomized complete block design. Seedling height, root collar diameter, sturdiness quotient, shoot dry weight, root dry weight and shoot-root ratio was measured at four months, while as the growth assessment was carried out on survival, height and stem diameter at the age of 2 and 4 years. The result showed that genetic variation was found to be higher among families within provenances than the variation among provenances for all parameters indicating the family effect had the highest contribution on the growth and survival. Based on family and provenance mean, most of the seedling parameters were significantly correlated with the others, but most of seedling parameters were not significantly correlated with plant growth at 2 and 4 years. The longitudinal cline was significantly correlated with shoot dry weight, root dry weight, and shoot-root ratio indicated that the white jabon seeding parameters in natural populations may have greater in humid (higher precipitation) than in drier locations. This was likely to suggest that the family or provenance selections based on seedling growth in the nursery may not be very effective because heritability of most growth variables is likely to be low.

Mechanical characteristics of impregnated white Jabon wood ( Anthocephalus cadamba ) using merbau extractives and selected polymerised merbau extractives

This paper presents results of a study on the mechanical characteristics of impregnated Jabon wood (Anthocephalus cadamba) using Merbau extractives (ME) and two types of polymerised Merbau extractives (PME), i.e PME22 and PME33. A set of tests on hardness, shear, modulus of elasticity (MOE) and modulus of rupture (MOR) was conducted according to the relevant standards. Two types qualitative analysis by means of FTIR spectra and XRD analysis were carried out to explore relationship between the mechanical characteristics alteration with physico-chemical characteristics. The results indicated that a positive improvement in mechanical characteristics was obtained for Jabon wood impregnated with PME22 and PME33. Surface hardness of modified wood samples exhibited higher values compared to the non-impregnated samples for end and side hardness, by 20.04 and 30.54 % (PME22), and 32.73 and 39.89 (PME33), respectively. Shear strength increased by 41.87 and 49.58 % (PME22) and 74.02 and 79.10 % (PME) for radial (T) and tangential (T) sections, respectively. MOE increased by 23.52% (PME22) and by 40.12% (PME33), MOR values also increased by 28.50 and 41.19 % after impregnation with PME22 and PME33, respectively. The increment of mechanical propertiesof treated Jabon wood after impregnation treatment using polymerised Merbau extractives were confirmed by FTIR spectra and crystallinity (XRD) analysis.

PERBAIKAN VIGOR BENIH JABON PUTIH SETELAH PENYIMPANAN 4,5 TAHUN MENGGUNAKAN IRADIASI SINAR GAMMA

Low dosage gamma ray iradiation has a potency to improve the seed germination by increasing of enzimatic activities, cell division, stimulating of responsive genes to auksin and improving of seed metabolism. The aim of the research was to identify seed storability of white jabon ( Neolamarckia cadamb a ) and to find out the effective gamma ray irradiation dosages to increase the seed vigor. Seeds were collected from 4 populations (Alas Puwo, Kampar, Batu Hijau, dan Pomalaa ) and were stored for 4,5 years. Randomized completely design was used to analysis seed storability and the effect of irradiation dosages ( (0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 Gy) on the parameters of seed germination and seedling growth. The result showed that seed storage for 4.5 years generally caused the decrease of seed viability and vigor, except for seeds from Batu Hijau.Seed moisture content decrease d significantly to 4.08-4.87percent. Gamma ray irradiation provided d ifferent responses on the seed origin .Irradiation was only effetive to improve germination with an initial seed germination more than 40 percent. Overall, dose of 40 Gy was able to improve seed vigor and seedling growth so that it can be applied to increase vigor of white jabon seeds.

Resistance mechanisms of white jabon seedlings (Anthocephalus cadamba) against Botryodiplodia theobromae causing dieback disease

Yanti LA, Achmad, Khumaida N. 2018. Resistance mechanisms of white jabon seedlings (Anthocephalus cadamba) against Botryodiplodia theobromae causing dieback disease. Biodiversitas 19: 1441-1450. Anthocephalus cadamba (Roxb.) Miq. seedlings are the most preferred plant for the nursery as they serve a lot of benefits and can be used as shading trees, reforestation, plywood, pulp, paper, and traditional medicines. Further, those benefits can increase the economic value of this plant. The main problem in the nursery of forestry plants is pest and disease attacks, one of which is dieback disease. The dieback disease is caused by Botryodiplodia theobromae Pat. that may lead death of the host plant. Every plant has its resistance mechanism toward pathogen attacks. This research aimed: (1) to study B. theobromae attack through wounded and non-wounded stem infection methods on white jabon seedlings; (2) to study the resistance mechanisms of white jabon seedlings both structural and biochemical resistance against B. theobromae. This study employed a factorial treatment design laid out in a completely randomized design. The structural resistance was determined by studying the microscopic appearance of the white jabon seedlings’ stem by using a scanning electron microscope. Meanwhile, the biochemical resistance was determined by characterizing the chemical compounds of white jabon seedlings' stem using phytochemistry analysis. The result showed that the disease incidence of the control (inoculated without pathogen isolate) and the inoculated (inoculated with pathogen isolate) seedlings were, respectively, 0% and 100% (with wounded stem) and 0% and 30% (non-wounded). The disease severity of control and inoculated seedlings were 0% and 62% (with wounded stem) and 0% and 12% (non-wounded stem), respectively. The incubation period of wounded and non-wounded stems on inoculated seedlings (inoculated with pathogen isolate) was one day after inoculation with the numeric values (disease scores) of 4 and 2, respectively. White jabon seedlings had necrotic resistance as structural resistance mechanism against the pathogen attack. White jabon seedlings also contained secondary metabolites such as alkaloids, flavonoid, phenyl hydroquinone, tannin, saponin, and steroids. The biochemical resistance of white jabon seedling after pathogen attacks was shown by the increase of accumulated phenolic compounds such as flavonoid and tannin.

Effect of Biopesticide Gamak Leaf Extract on Jabon Caterpillar Pest Mortality (Arthroschista hilaralis) in White Jabon Plants (Anthocephalus cadamba Miq)

White Jabon (Anthochepalus cadamba Miq). is one of the tree species that has high prospects for industrial plantations and reforestation (greening) in Indonesia because it has very fast growth, very good adaptability. Disorders of plant disturbance organisms most commonly found in Jabon, Jabon caterpillar (Arthroschista hilaralis) become a major problem that can reduce the quality and quantity of wood. Pest control with chemicals does not provide maximum results so it is necessary to test with biopesticides. The study to examine the effect of gamal leaf extract as a natural insecticide was carried out using a completely randomized design with four treatments, namely the concentration of gamal leaf extract 0% (P0), 50% (P1), 75% (P2), 100% (P3). The results showed that gamal leaf extract as a vegetable insecticide had a positive effect on the mortality of A. hilaralis larvae in Jabon plants. The higher the concentration of gamal leaf extract, the higher the mortality rate in A. hilaralis larvae. This can be seen in the most effective concentration is the concentration of 100% with a mortality rate of 95%. The highest total mortality of A. hilaralis larvae occurred at a concentration of 100% ie 2.1 head / day. The higher the concentration of gamal leaf extract, the higher the speed of death of the larvae

VARIATION AMONG POPULATIONS AND CORRELATION AMONG SEEDLING CHARACTERS OF WHITE JABON (Neolamarckia cadamba (Roxb.) BOSSER) UNDER DROUGHT AND WATER LOGGING STRESS

Drought and water logging stress are the most critical environmental factors that affect tree seedling survival and growth in the field. In this study, 12 populations of white jabon ( Neolamarckia cadamba (Roxb.) Bosser) were evaluated to determine the genetic variability among populations and correlation among morpho-physiological seedling characters under drought and water logging stresses. Two research units were carried out by the randomized complete design with 2 x 12 factorial arrangements, i.e. (1) drought stress (2 treatments) and population (12 populations), and (2) water logging stress (2 treatments) and population (12 populations). Results showed that the responses of seedling traits were varied among populations under drought and water logging stresses. White Jabon seedling has higher adaptation to water logging stress than to drought stress. Kampar and Gowa populations have better adaptation to water logging stress. In drought stress, Gowa population had better adaptation followed by Nusa Kambangan population. Seedling height, total biomass and proline content characters based on value of broad sense heritability and correlation among characters, could be considered as important indicators for improvement programs for drought tolerance, while in the water logging stress, height, total biomass, root length and leaf area could be considered as important indicators for improvement program of white Jabon for tolerance on waterlogged sites.

Effect of Tree Age and Active Alkali on Kraft Pulping of White Jabon

White Jabon (Anthocephalus cadamba Miq.) is one of the fast growing species in Indonesia and has the potential as the raw material for pulp and paper. In this research, 3, 5, and 7 years old White Jabon woods were pulped under different active alkali charge of 15%, 18%, 21%, 24%, and 27%, and its effect on delignification degree, kappa number, pulp yield, pulp viscosity, brightness, unbeaten freeness, and delignification selectivity was investigated. The results showed that tree age and active alkali concentration influenced the quality of pulp and pulping properties, except for that of unbeaten freeness. Delignification degree increased with increasing active alkali charge, and this brought about the decrease of pulp kappa number. The pulping yield tended to decrease below the Klason lignin of approximately 4%. Even though the 3 years old wood resulted in the highest brightness and highest delignification selectivity, the highest pulp viscosity was obtained with the 5 years old wood. The dominant fiber length of all wood ages was in the range of 1.2 - 2.0 mm. The 3 years old wood was considered to be the most promising raw material for kraft pulping in the view point of pulping properties, pulp quality and harvesting rotation.

ADAPTABILITY OF WHITE JABON (Anthocephalus cadamba MIQ.) SEEDLING FROM 12 POPULATIONS TO DROUGHT AND WATERLOGGING

The study was carried out for investigation of the adaptability of white jabon seedlings from 12 populations to drought and water logging stresses in a controlled green house. The results showed that the adaptive responses of white jabon seedling to drought and waterlogging stresses were affected by genotype (population). The drought and waterlogging stresses significantly inhibited plant growth, biomass accumulation and allocation, leaf area, also decreased chlorophyll content, increased carotenoids contents, and accumulated free proline. Relative water content and specific leaf area tended to be higher in waterlogging and declined in drought stresses. The result clearly indicated that white jabon seedlings were more adaptive to waterlogging than to drought stresses. Moreover, there were different responses to drought and waterlogging stresses between the twelve populations. Kampar, Gowa, Kuala Kencana and OKI populations exhibited higher growth performance and stress tolerance index to be adapted to waterlogging stress, while Gowa, Pomalaa and Kampar populations had relatively better growth performance in the drought stress.

Genetic variation of fruit, seed, and seedling characteristics among 11 populations of white jabon in Indonesia

Genetic variation patterns of white jabon (Anthocephalus cadamba [Roxb.] Miq.), were evaluated at the population level. Eleven natural populations were examined for variations in fruit, seed, and seedling morphophysiological characteristics. Analysis of variance revealed significant differences among populations for all the characteristics studied, except the radicle length. Genotypic variance and genotypic coefficient of variance for all fruit, seed, and seedling characteristics were found to be higher than corresponding environment variance and environment coefficient of variance, indicating that the genotype explained most of the variance for these characteristics. In particular, high heritability values coupled with high genetic gain were found for fruit weight, seedling height, root collar diameter, sturdiness index, leaf number, leaf length, and leaf width. Principal component analysis and hierarchical clustering of various characteristics of fruit, seed, and seedling revealed that most of the geographically distant populations are genetically close. Since these characteristics appear to be under strong genetic control, considerable scope exists for exploitation of heritable additive genetic components for future breeding and improvement in white jabon.