Keawetan 200 Jenis Kayu Indonesia Terhadap Penggerek Di Laut

Muslich, Masnur; Sumarni, Ginuk

doi:10.20886/jphh.2005.23.3.163-176

Cited by 4 publications

(2 citation statements)

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“…Tropical rainforests in Southeast Asia are dominated by Dipterocarpaceae family [1,2], including Shorea platyclados, which has excellent timber quality [3]. In international trade, it is one of the commercially important timber tree species known as Dark Red Meranti.…”

Section: Introductionmentioning

confidence: 99%

Potential of Genome-Wide Association Studies and Genomic Selection to Improve Productivity and Quality of Commercial Timber Species in Tropical Rainforest, a Case Study of Shorea platyclados

Sawitri

Tani

Na’iem

et al. 2020

Forests

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Shorea platyclados (Dark Red Meranti) is a commercially important timber tree species in Southeast Asia. However, its stocks have dramatically declined due, inter alia, to excessive logging, insufficient natural regeneration and a slow recovery rate. Thus, there is a need to promote enrichment planting and develop effective technique to support its rehabilitation and improve timber production through implementation of Genome-Wide Association Studies (GWAS) and Genomic Selection (GS). To assist such efforts, plant materials were collected from a half-sib progeny population in Sari Bumi Kusuma forest concession, Kalimantan, Indonesia. Using 5900 markers in sequences obtained from 356 individuals, we detected high linkage disequilibrium (LD) extending up to >145 kb, suggesting that associations between phenotypic traits and markers in LD can be more easily and feasibly detected with GWAS than with analysis of quantitative trait loci (QTLs). However, the detection power of GWAS seems low, since few single nucleotide polymorphisms linked to any focal traits were detected with a stringent false discovery rate, indicating that the species’ phenotypic traits are mostly under polygenic quantitative control. Furthermore, Machine Learning provided higher prediction accuracies than Bayesian methods. We also found that stem diameter, branch diameter ratio and wood density were more predictable than height, clear bole, branch angle and wood stiffness traits. Our study suggests that GS has potential for improving the productivity and quality of S. platyclados, and our genomic heritability estimates may improve the selection of traits to target in future breeding of this species.

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Section: Introductionmentioning

confidence: 99%

Potential of Genome-Wide Association Studies and Genomic Selection to Improve Productivity and Quality of Commercial Timber Species in Tropical Rainforest, a Case Study of Shorea platyclados

Sawitri

Tani

Na’iem

et al. 2020

Forests

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“…Tingginya populasi cacing laut ditandai dengan banyaknya celah pada serat kayu dan lubang pada kayu sehingga mempersempit ruang lingkup Biofouling pada media kayu. Menurut (Muslich & Sumarni, 2005), bahwa Serangan cacing laut ditandai oleh adanya penggerekan yang mula-mula tegak lurus terhadap serat kayu, kemudian membelok sejajar serat kayu Intensitas serangan yang tinggi pada kayu akan menunjukkan kepadatan populasi organisme tersebut di dalam kayu.…”

Section: Hasil Dan Pembahasanunclassified

Keanekaragaman Biota Penempel (Biofouling) Pada Substrat Kayu Dan Fiber Yang Digunakan Oleh Kapal Di Perairan Wolo Kabupaten Kolaka

Wulandari¹,

Ramli²,

Nurgayah³

2022

Kelautan

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Biofouling ada jenis biota yang menempel pada suatu substrat. Banyaknya biofouling yang menempel pada badan kapal akan menyebabkan kerusakan dan memperpendek usia pakai kapal. Penelitian ini bertujuan untuk membandingkan biofouling pada kapal kayu dan kapal fiber milik nelayan di Wolo, Kabupaten Kolaka. Pengambilan data biofouling dilakukan pada Bulan Oktober 2020 di di pesisir pantai Wolo, Kabupaten Kolaka menggunakan metode transek kuadrat yang meliputi data keanekaragam dan keseragaman biofouling pada dua jenis kapal serta parameter perairan. Hasil yang diperoleh yaitu biofouling jenis Balanus sp. ditemukan paling dominan pada kedua jenis kapal dan jenis Littorina scabra dan M. withersii ditemukan sebagai jenis minoritas pada kapal fiber. Hasil yang diperoleh yaitu pada kayu ditemukan jenis Balanus sp dan L. scabra dengan nilai keanekaragaman 0,009 dan keseragaman 0,013. Sedangkan pada fiber ditemukan jenis Balanus sp., L. Scabra dan M. withersii dengan nilai keanekaragaman 0,223 dan nilai keseragaman 0,203. Secara keseluruhan, ditemukan lebih banyak jenis biofouling pada kapal fiber namun ditemukan lebih banyak individu pada kapal kayu.Kata kunci: Keanekaragaman, Biofouling, Kapal Kayu, Kapal Fiber, Wolo.

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Durabilty of 25 Local Specific Wood Species from Java Preserved With CCB Against Marine Borers Attack

Muslich¹,

Rulliaty²

2010

Ina.J.For.Res

Self Cite

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This study was conducted to provide basis information of the 25 local specific wood species indigenous from Java treated by copper bichromated boron (CCB). The full-cell process for 2 hours and 150 psi during the pressure-keeping period was employed. The IUFRO method was applied for the determination of wood treatability class. The treated and untreated wood specimens were tied together using plastic cord, arranged into a raft like assembly, and then exposed for 3, 6, and 12 months to the brackish water situated at Rambut Island's coastal area. The Nordic Wood Preservation Council (NWPC) standard No.1.4.2.2/75 was used to determine the intensity of marine borer infestation. The results revealed that 19 out of those 25 species were classified as easy to be preserved, four species as moderate, and the remaining two were difficult to be preserved. Those 19 species, i.e. Tamarindus indica L., Diplodiscus sp., Ficus variegate R.Br., Ehretia acuminata R.Br., Meliocope lunu-ankenda (Gaertn) T.G. Hartley, Colona javanica B.L., Pouteria duclitan Bachni., Stercularia oblongata R.Br., Ficus vasculosa Wall ex Miq., Callophyllum grandiflorum JJS., Turpinia sphaerocarpa Hassk., Neolitsea triplinervia Merr., Acer niveum Bl., Sloanea sigun Szysz., Castanopsis acuminatissima A.DC., Cinnamomum iners Reinw. Ex Blume., Litsea angulata Bl., Ficus nervosa Heyne., and Horsfieldia glabra Warb. were more permeable implying that the CCB retention and penetration were greater and deeper. Hymeneae carboril. L., Litsea odorifera Val., Gironniera subasqualis Planch., and Lindera polyantha Boerl. were moderately permeable. Castanopsis tunggurut A.DC. and Azadirachta indica Juss. were the least permeable judging that the CCB retention and penetration were lowest and shallowest. The treated wood specimens in this regard were able to prevent marine borers attack. Meanwhile, the untreated specimens were susceptible to marine borers attack, except Azadirachta indica. The attacking borers consecutively are Martesia striata Linne that belongs to the Pholadidae family; and Teredo bartschi Clapp., Dicyathifer manni Wright., and Bankia cieba Clench. to the Terdinidae family.

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Keawetan 200 Jenis Kayu Indonesia Terhadap Penggerek Di Laut

Cited by 4 publications

References 0 publications

Potential of Genome-Wide Association Studies and Genomic Selection to Improve Productivity and Quality of Commercial Timber Species in Tropical Rainforest, a Case Study of Shorea platyclados

Potential of Genome-Wide Association Studies and Genomic Selection to Improve Productivity and Quality of Commercial Timber Species in Tropical Rainforest, a Case Study of Shorea platyclados

Keanekaragaman Biota Penempel (Biofouling) Pada Substrat Kayu Dan Fiber Yang Digunakan Oleh Kapal Di Perairan Wolo Kabupaten Kolaka

Durabilty of 25 Local Specific Wood Species from Java Preserved With CCB Against Marine Borers Attack

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