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KETAHANAN SERANGAN PENYAKIT KARAT TUMOR PADA UJI KETURUNAAN SENGON (Falcataria moluccana) DI BONDOWOSO, JAWA TIMUR Dedi Setiadi; Mudji Susanto; Liliana Baskorowati
Jurnal Pemuliaan Tanaman Hutan Vol 8, No 1 (2014): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpth.2014.8.1.1-13

As a part of tree improvement project of sengon (Falcataria moluccana L. Nielsen) several progeny test were established in December 2011. One of those progeny test was established in Bondowoso, East Java. Row Column Desgin (Incomplete Block Design) was used as experimental design involving 70 families (9 Papua provenance and 1 provenance Solomon), 4 replications (blocks), 4 trees per plot and a spacing of 3 x 2 m. Observations were made at the age of 6 and 12 months, including recorded the percent of survival plants, height, diameter and the gall rust incidence. Results showed that in general, the early growth of individual plant in this plot demonstrated a fairly good performance with the survival rate of 98.5% (6 months old), and 96.9% (1 year old). The early growth of sengon varied significantly between provenances. The best growth demonstrated by provenances from Meagama, Holima and Hobikosi. Early estimation of individual heritability of plant height categorised in low (h2i = 0.07 to 0.11, h2 = 0.16 to 0,21) , whereas individual heritability of diameter were catagorised in medium (h2i = 0.08 to 0.11, h2f = 0.15 to 0,43). Moreover, the positive value of the genetic correlation revealed between height and diameter (0.88 and 0.85). Several individual trees originated from Holima, Meagama and Elagaima exhibited 0% of gall rust disease incidence.

MORFOLOGI PEMBUNGAAN DAN SISTEM REPRODUKSI MERBAU (Intsia bijuga) PADA PLOT POPULASI PERBANYAKAN DI PALIYAN, GUNUNGKIDUL Liliana Baskorowati; Sugeng Pudjiono
Jurnal Pemuliaan Tanaman Hutan Vol 9, No 3 (2015): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Information regarding the flowering morphology, as a first step to understand the reproductive system, is essential. The purpose of this study is to determine the flowering morphology and the reproductive systems of merbau. Observation of flowering and fruiting intensity was undertaken every week for 6 consecutive months, from May to November 2013. Observations of the development of generative organs were carried out on daily basis to determine the duration and the length of each development stage of flowers and fruits. Results showed that flowering of merbau is arranged in spikes, hermaprodite with un synchronous flowering between and within spikes. Reproductive organs are protandry and apparently heterostyly type, indicating that self-incompatibility may occur in this species. None fruit was formed from self-pollination experiment; supporting the allegation of crosspollination systems (xenogamy). Flowering occurs twice a year with peak flowering in June and November, followed by fruit maturation in the next 3 months. Various types of insect visitors found during this study, however very few insect can be determined as pollinators. Flowers and pollinator limitation lead to the mechanism of self-incompatibility causing low reproductive success on this species. Therefore, an artificial cross-pollination or an introduction of pollinators needs to be done in order to enhance the reproductive success of this species.

PENGARUH ABU VULKANIK PADA PERTUMBUHAN, LUAS SERANGAN DAN INTENSITAS SERANGAN KARAT TUMOR PADA SEMAI SENGON Siti Husna Nurrohmah; Agus Wahyudi; Liliana Baskorowati
Jurnal Pemuliaan Tanaman Hutan Vol 8, No 2 (2014): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

The study aimed to examine the effect of volcanic ash on growth, disease incidence and severity of gall rust on sengon seedlings. Treaments were used compound af volcanic ash and planting medium with the comparison of 0:4 (M1), 1:3 (M2), 1:1 (M3), 3:1 (M4) and 4:0 (M5). Growth parameters including height, number of leaves, and the level of chlorophyll were measured. Artificial inoculation using fresh spore of Uromycladium tepperianum were applied 3 times: at the first, fourth and seven days after the second leaves of seedlings emerged, then the gall rust disease symptom were scored weekly for a month. The results showed that seedlings exhibited treatment M1 and M2 more optimal growth than the others. However, sengon with higher concentration volcanic ash performed the slowest growth compared to other treatments. Disease incidence and severity were ranged of 0-80% and 0-24%. Seedling sengon with treatment M2, M3 and M5 emerged the symptoms of gall rust however, seedlings with treatments of M1 and M4 did not show the symptomps.

SERANGGA PENGUNJUNG PADA KEBUN BENIH GENERASI KEDUA Melaleuca alternifolia (Maiden &Betchc) Cheel Di WEST WYALONG NEW SOUTH WALES AUSTRALIA Liliana Baskorowati
Jurnal Pemuliaan Tanaman Hutan Vol 3, No 3 (2009): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

It is important tu understand the floral visitor as preliminary study of aspecies in order to manage seed orchard. This study was aimed to observe the floral visitors and nectar nectar production of M. alternifolia flowers at second generation seeding seed orchard, West Wyalong, New Sounth Wales, Australia. One Five-minute count of insect visiations was carried out each morning between 10.00 and 11.00 am and each afternoon between 03.00 and 04.00 pm over five consecutive days during peak flowering. The numbersss of inflorescences for each sample branch, and all insect visits to each inflorescence, were recorded and collected. Insect traps were also placed on every sample tree to assist observation of the varieties of small insect. Insect traps were placed in the two partial exclusion treatments, i.e: (1) inside the fiberglass fly-screen with 2 mm apertures; (2) on the branch located in the middle of each tree without netting. Results revealed that flowers produced only a small amount of nectar which was indicated by a shiny appearance at the base of the floral cup in the morning, but this quckly disappeared as a result of evaporation. Thrips and flies and flies were dominat floral visitor of M. alternifolia, while several other types of insects, e.g. beetles, wasps, plant bugs, butteflies, predatory shield bugs and leafhopper were only infrequent visitors.

PERTUMBUHAN SENGON SOLOMON DAN RESPONNYA TERHADAP PENYAKIT KARAT TUMOR DI BONDOWOSO, JAWA TIMUR Dedi Setiadi; Liliana Baskorowati; Mudji Susanto
Jurnal Pemuliaan Tanaman Hutan Vol 8, No 2 (2014): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpth.2014.8.2.121-136

A provenance stands of sengon Solomon (Falcataria moluccana (Miq.) Barneby & JW Grimes was establishhed in Bondowoso, East Java in 2011. One provenance seed consisting of 25 families originated from Solomon Island were used in this trial. Provenance stands was designed by rows column design (incomplete block) involving 8 blocks, 4 trees per plot (plot tree) with a spacing of 3 m x 2 m. Several characters were observed i.e: survival rate, height, diameter and the presence of gall rust diseases; the observations were undertaken every 6 months from 6 months old up to the age of 18 months. The results showed that the mean of survival rates ranging from 75% to 90%; with the average survival rate of 84.83% (6 months), 83.26% (12 months) and 81.05% (18 months). The mean height and diameter of 6 months old (2.42 m, 2.97 cm), 12 months old (4.74 m, 5.56 cm), and 18 months old (7.35 m, 7.39 cm). Varian analysis of height, diameter, disease severity and intensity showed that there were no significant differences between families. All of families attacked by gall rust disease, however family number 2, 8 and 23 showed the lowest respond of attack compared to other families. Therefore, those families can be recommended for future development in terms of toleration to the gall rust disease.

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