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All Journal Sains Natural: Journal of Biology and Chemistry Jurnal Penelitian Hasil Hutan
Dominicus Martono
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Materials Science & Nanotechnology

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AKTIVITAS FUNGISIDA BAHAN PENGAWET KAYU BERBAHAN AKTIF MAJEMUK TERHADAP JAMUR BIRU Diplodia sp Agus Ismanto; Dominicus Martono
JURNAL SAINS NATURAL Vol. 3 No. 2 (2013): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (146.732 KB) | DOI: 10.31938/jsn.v3i2.64

Abstract

Fungicide Activity of Complex-Active Ingredient of Preservative Wood  Against Bluestain of Diplodia sp.         Wood preservatives containing chlorotalonyl 450 g/L and carbendazim 100 g/L (Entiblu 450/100SC) was a pesticide compound serves to prevent fungal attacks Diplodia sp on the media of PDA (Potato Dextrose Agars) and to prevent germination of the spores. Inhibition of the rate and intensity of Diplodia sp fungus attacks on the media in petridish indicated a slowing rate of growth of the mycelium. The results showed that the pesticides containing chlorotalonyl 450 g/L and carbendazim 100 g/L with a concentration of 2 x 1.5 kg/ m³ could prevent the growth of the mycelium of Diplodia sp, inhibition rate reached 100%. For single ingredient chlorotalonyl 75 % (Chlorotalonil 75 WP) a concentration of ½ x 0.375 kg/m³ had been able to prevent the growth of the mycelium up to 100 %, while in carbendazim 50 % (Carbendazim 50 WP) to reached 100 % inhibition at a concentration of 1 x  0.75 kg/m³. Pesticides which was a mixture of active ingredients chlorotalonyl 450 g/L and carbendazim 100 g/L  no antagonism activity.Keywords : fungicide, complex active ingredient, bluestain of Diplodia sp, chlorotalonyl, carbendazim ABSTRAK           Bahan pengawet  kayu yang mengandung klorotalonil 450 g/L dan karbendasim 100 g/L  (Entiblu 450/100SC) merupakan pestisida majemuk berfungsi untuk mencegah serangan jamur Diplodia sp pada media agar PDA (Potato Dextrose Agar) dan mencegah perkecambahan spora. Penghambatan laju dan intensitas serangan jamur Diplodia sp pada media dalam cawan petri ditunjukkan  pelambatan kecepatan pertumbuhan miselium.  Hasil pengujian  menunjukkan bahwa pada pestisida yang mengandung klorotalonil 450 g/L dan karbendasim 100 g/L  dengan konsentrasi 2 x 1,5 kg/m³ dapat mencegah pertumbuhan miselium Diplodia sp , tingkat penghambatan mencapai 100 %. Untuk bahan tunggal klorotalonil 75 %  (Chlorotalonil 75WP) pada konsentrasi ½ x 0,375 kg/m³ telah mampu mencegah pertumbuhan miselium  sampai 100 %, sedangkan pada karbendasim 50 % (Carbendazim 50 WP) untuk mencapai penghambatan 100 % baru pada konsentrasi 1 x 0,75 kg/m³. Pestisida yang merupakan campuran bahan aktif klorotalonil 450 g/L dan karbendasim 100 g/L tidak ada aktivitas antagonisme.Kata kunci : fungisida, bahan aktif majemuk, jamur biru Diplodia sp, klorotalonil, karbendasim
SIFAT FISIS DAN STABILISASI DIMENSI BEBERAPA JENIS BAMBU KOMERSIAL Barly; Agus Ismanto; Dominicus Martono; Abdurachman; Andianto
Jurnal Penelitian Hasil Hutan Vol. 30 No. 3 (2012): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2012.30.3.163-170

Abstract

This experiment aims to look into appropriate formulate which may improve physical properties and dimentional stability of bamboos to optimize their uses as construction materials. Results revealed that length of culm (stem), number of internodes, and internode length varied in accord with different bamboo species. Moisture content of bamboo varied depending on species, ie.bijan or ater (236.15%), mayan (181.52%), tali (117.32%), and hitam (111.83%). Likewise, bamboo density also varied, ie, tali (0.93), andong (0.88), mayan (0.83), bijan or ater (0,79), hitam (0.78), and betung (0.78). The density of bamboo decreases in cross-section moving, from the periphery, middle to inner part. Volumetric shrinkage varieds according to bamboo species, i.e. mayan (9.04%), betung (15.75%), andong (16.32%), and ater (38,45%). The bigbest ASE percentage (95.57%) occured at ater (LO), while the lowest (-144,92%) was of mayan (SCa). Bamboo that afford responses to ASE percentage value was arranged from the bighest, i.e. LO, PEG, SPA, B, A, C. The LO agent was absorbed the least by all bamboo species, followed in increasing order by PEG with the expection of hitam hamboo, Bamboo that absorbed the swell-resisting order by PEG with the least was the andong (14.22%) with LO, and the greatest inflicted by bitam (137,54%) with PEG, Almost all bamban species were able to absorb the entire swell-resisting agents in large amount. The retention of agents in dry bamboo was arranged in order from the bigbest to the Inwest, ie. PEG, LO, SCa, and SPo The highest to the lowest retentions were of consecutively hitam, ater, tutul, andang, mayan, and betung.
PENGAWETAN WARNA KAYU TUSAM (Pinus merkusii) DAN PULAI (Alstonia sp.) DENGAN MENGGUNAKAN BAHAN DASAR DISINFEKTAN Barly; Agus Ismanto; Dominicus Martono; Abdurachman
Jurnal Penelitian Hasil Hutan Vol. 30 No. 2 (2012): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2012.30.2.155-162

Abstract

Wood color can vary much between species but the variations tends to be smaller within the same species. Noticeable deviations in color at timber surface or in the core of the same board my cause problems in timber trading or in final product's appearance. Undesirable discoloration often develops during wood drying process. The research aims to study natural color changes of Pulai (Alstonia sp.) and Pine (Pinus merkusii). Prevention of wood color change is undertaken by using active ingredients of benzylkonium chloride (A and D), phenol (B and C), creselic acid (E), sodium bypochlorite (F) and methylen-bis-thiocyanate (G). The treated wood samples together with their controls were then kept in three different conditions, i.e. conditioning room at 70 RH and temperature of 18 C, in the terrace and in the oven with temperatures of 60 C and 120 C. The test results demonstrate that the bigbest brightness (L") was obtained at Pulai the wood surface and inside the wood block using formulation of D, namely 87.3 and 89.3 with a total value of the brightness variation (AL) -6.7 and -4.7. However, the bigbest brightness of Pine wood was acchiered using formulation, namely 83.5 and 80.0 with a total variation of brightnest of -10.5 and-14.0. These value swere obtained from samples stored in low temperature and bumidity (air conditioned).
Co-Authors Abdurachman Agus Ismanto Agus Ismanto Andianto Barly