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INDONESIA
Indonesian Journal of Applied Sciences
Published by Universitas Padjadjaran
ISSN : 20899203     EISSN : 25811991     DOI : -
Core Subject : Social,
Environmental Science
Indonesian Journal of Applied Sciences (IJAS) is a scientific journal published three times a year (April, August, December). Indonesian Journal of Applied Sciences publish original research results related to research in the field of natural science, covering a wide range of topics written in the field of knowledge: medicine, agriculture, animal husbandry, fisheries, pharmaceuticals, and other exact sciences
Arjuna Subject : -
Articles 144 Documents
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Sodium Alginat sebagai Controlled Release Mikroenkapsulasi Chlorhexidine 2% untuk Alternatif Dressing Saluran Akar Gigi Denny Nurdin
Indonesian Journal of Applied Sciences Vol 1, No 3 (2011)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/ijas.v1i3.1879

Abstract

Chlorhexidine in various concentrations has been recommended as a root canal irrigation and medicament of infected teeth. Intracanal medicament should remain stable in solution and remain active despite being contaminated by blood, serum and tissue protein derivates. A way is needed to protect the medicament from the influence of the root canal environtment, that is by encapsulating the root canal medication. Coating materials used must be biocompatible and biodegradable, one of which is sodium alginate. In this research, microcapsules of sodium alginate with chlorhexidine as an active compounds were manufactured using sol-gel and emulsion method, and a crosslink menthod between sodium alginate and calcium nitrate.  The purpose of this study was to analyze the ability of sodium alginate as a controlled release of encapsulated active compound chlorhexidine 2% who has micro size in order to work in the root canal tooth and analyze the release rate. Research conducted at the Material Processing Laboratory Engineering Physics Institut Teknologi Bandung. The results showed that based on SEM obtained microcapsule size ranging from 0.3 μm - 5μm and by using UV-Vis characterization of the release rate is known is 0.03% per minute. The conclusions of this study was sodium alginate has the ability to encapsulate the active compound chlorhexidine 2% in micro size.****Chlorhexidine dalam berbagai konsentrasi telah direkomendasikan sebagai bahan irigasi dan obat saluran akar gigi yang terinfeksi. Obat saluran akar harus tetap stabil dalam larutan dan tetap aktif meskipun terdapat darah, serum dan derivat protein jaringan. Diperlukan suatu cara untuk melindungi obat saluran akar dari pengaruh lingkungannya yaitu dengan cara mengenkapsulasi obat saluran akar tersebut. Bahan penyalut yang digunakan harus bersifat biocompatible dan biodegradable yang salah satunya adalah sodium alginat. Pada penelitian ini dilakukan pembuatan mikrokapsul sodium alginat dengan senyawa aktif chlorhexidine 2 % menggunakan metode sol-gel dan emulsi serta metode crosslink antara sodium alginat dan kalsium nitrat.Tujuan penelitian ini adalah untuk  menganalisis kemampuan sodium alginat sebagai controlled release dari enkapsulasi senyawa aktif chlorhexidine 2% yang mempunyai ukuran mikro agar dapat bekerja dalam saluran akar gigi dan menganalisis release rate-nya.Penelitian dilakukan di Laboratorium Proses Material Teknik Fisika Institut Teknologi Bandung. Hasil penelitian menunjukkan bahwa berdasarkan karakterisasi SEM didapatkan ukuran mikrokapsul berkisar antara 0,3µm – 5µm dan dengan menggunakan karakterisasi UV-Vis diketahui release ratenya adalah 0,03% permenit. Simpulan dari penelitian ini adalah sodium alginat memiliki kemampuan untuk mengenkapsulasi senyawa aktif chlorhexidine 2% dalam ukuran mikro.
ANALISIS KEMAMPUAN CITRA RADIOGRAFI PANAROMIK DALAM MENDETEKSI KERAPATAN TRABEKULA TULANG DENGAN MIKRO CT SEBAGAI BAKU STANDARD - Image Analysis Capabality Of Detectinc Panoramic Radiographic Trabecular Bone Density As Standard With Standard Micro CT Azhari Azhari; Suprijanto Suprijanto; Hanifan Prafiadi; Endang Juliastuti
Indonesian Journal of Applied Sciences Vol 4, No 1 (2014)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (493.677 KB) | DOI: 10.24198/ijas.v4i1.16679

Abstract

AbstrakPenelitian Radiografi panoramik menggunakan  analisa mikro struktur untuk  deteksi kualitas tulang menggunakan Panoramik dengan Micro CT sebagai baku standard. Tujuan dari penelitian ini untuk mengetahui akurasi Panoramik dalam mendeteksi trabekula tulang di regio kondilus, angulus mandibula dan regio molar dengan model tulang vertebrae dan tulang iga. Empat macam tulang vertebrae dan tulang iga sapi diletakkan pada lengkung rahang yang  dibantu oleh model tengkorak terbuat dari plastik sebagai model lengkung tulang. Tulang diletakkan pada lengkung rahang bawah terbuat dari  bahan plastik pada regio berbeda yaitu : regio kondilus (tulang 1), angulus mandibula (tulang 2) regio molar 2 dan molar 1( tulang 4). Model tulang masing-masing mempunyai kerapatan berbeda lalu dilakukan pemotretan radiografi panoramik dengan posisi standard dan micro CT sebagai “gold standard”. Dengan menggunakan Analisis fraction trabekula algorithma menggunakan software.  Hasil penelitian didapatkan fraksi trabekular sebagai berikut: regio kondilus panoramik sebesar: 44.05%, Micro CT 39.63% , regio angulus panoramik 28.85% , micro CT 24.15% , dan regio molar 27.43%, micro CT 22.64 %, rata-rata perbedaan 4,6 %. Radiografi panoramik dapat digunakan untuk mendeteksi kelainan micro struktur di  regio kondilus .Kata kunci :  Micro CT,  Panoramik,AbstractPanoramic radiographs using micro- structure analysis for the detection of bone quality using Panoramic with Micro CT as standard raw. The purpose of this study was to determine the accuracy in detecting trabecular bone Panoramic in the region of the condyle , the angle of the mandible and molar regions with models vertebrae and rib bones. Methods : Four kinds of bone vertebrae and ribs placed on the cow arch assisted by a plastic skull models as models of bone arch. Bone is placed in the lower arch is made of plastic materials in different regions are: region of the condyle ( bone 1 ), angle of the mandible ( bone 2 ) 2 molar and molar regions 1 ( bone 4 ). Model of each bone has different densities, then shooting panoramic radiography performed with standard position and micro CT as the " gold standard ". By using analysis of trabecular fraction algorithm using software. The study trabecular fractions obtained as follows : panoramic condyle region of : 44.05 %, 39.63 % Micro CT, region of the angle panoramic 28.85 %, 24.15 % micro CT, and molar region, 27.43 %, 22.64 % micro CT, difference average 4.6 %. Panoramic radiographs can be used to detect abnormalities in the region of the micro structure of the condyle.Keywords : Micro CT , Panoramic
KUALITAS SILASE DAUN GAMAL DENGAN PENAMBAHAN MOLASES SEBAGAI ZAT ADITIF Ervi Herawati; Mega Royani
Indonesian Journal of Applied Sciences Vol 7, No 2 (2017)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (165.659 KB) | DOI: 10.24198/ijas.v7i2.13737

Abstract

AbstrakGamal adalah tanaman leguminosa pohon yang dapat tumbuh dengan cepat namun pemanfaatannya sebagai bahan pakan ternak memiliki palatabilitas yang rendah akibat bau dan rasanya yang menyengat dan pahit, berasal dari senyawa kumarin, sehingga kurang disukai oleh ternak. Salah satu alternatif yang dapat digunakan untuk menghilangkan zat antinutrisi tersebut yaitu dengan cara dibuat silase. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan molasses terhadap kualitas silase pada daun gamal terfermentasi yang memberikan hasil silase terbaik. Uji kualitas yang diukur adalah pH, persentase asam laktat, dan kadar amonia. Metode penelitian yang digunakan adalah metode eksperimental dengan metode Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 4 ulangan. Perlakuannya terdiri dari penambahan molasses pada daun gamal yaitu P1=1%, P2=2%, P3=3%, P4=4%, dan P5=5%. Hasil pengujian menunjukkan bahwa kualitas silase daun gamal yang optimal didapat pada perlakuan 4 (P4=4% molasses) yang menghasilkan rata-rata nilai pH sebesar 4,18, persentase asam laktat 1,143%, dan kadar NH3 sebesar 6,06 mM. Kata kunci: asam laktat, gamal, molases, NH3, pH. AbstractGliricidia sepium is a leguminous tree that grows rapidly but its use as animal feed material has low palatability due to its stinky smell and bitter taste, caused by coumarin compound, hence it is less favored by livestock. One alternative way to remove this compound is by making silage. This study was aimed to determine the effect of adding molasses to the quality of silage on fermented Gliricidia sepium leaves to obtain the best silage result. Quality tests measured include pH, lactic acid percentage, and ammonia levels. Method used was experimental Completely Randomized Design with 5 treatments and 4 replications. The treatment consisted of the addition of molasses on the Gliricidia sepium leaf, P1 = 1%, P2 = 2%, P3 = 3%, P4 = 4%, and P5 = 5%. Results showed that the optimal quality of Gliricidia sepium leaf silage was obtained from P4 (4% molasses) which resulted in average pH value of 4.18, lactic acid percentage 1.143%, and NH3 level of 6.06 mM.Keywords: lactic acid, Gliricidia sepium, molasses, NH3, pH.
Senyawa Steroid dari Kulit Batang Tumbuhan Suren (Toona Sureni) Ira Lestari
Indonesian Journal of Applied Sciences Vol 1, No 2 (2011)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/ijas.v1i2.1861

Abstract

Toona sureni is a higher plant which belongs to Meliaceae family and widely distributed in the tropical countries such as Nepal, India, Bhutan, Myanmar, Indo-China, South China, Thailand, Malaysia, Papua New Guinea and Indonesia. Toona sureni is traditionally widely used to treatment of  malaria, diarrhea, and as an insecticide. T. sureni is potential as a source of secondary metabolites especially triterpenoid, steroid and flavonoids. The purpose of this study is to isolate and determinate chemically the compounds from the ethyl acetate extract of the stem bark of T. sureni. The stem bark of T. sureni gradually macerated with n-hexane and ethyl acetate at room temperature. The ethyl acetate extract was separated their compounds by using a combination of column chromatography on silica gel to yield two compounds. The chemical structure of compounds was determined based on spectroscopy method as well as by comparison to related compounds previously reported, and was determined as a compound with steroid skeleton stigmastan namely 3β-D-galactose-sitosterol (1) and 3β-D-galactose sitosterol non-3-enoic (2). Based on literature searches both compounds were first discovered in the species T. sureni, while compound 2 was for the first time found in the Toona marga.****Toona sureni adalah tumbuhan tinggi yang tergolong famili Meliaceae dan terdistribusi luas di daerah tropis seperti Nepal, India, Bhutan, Myanmar, Indo-China, Cina Selatan, Thailand, Malaysia, Papua Nugini dan Indonesia. Tumbuhan Toona sureni merupakan spesies dari keluarga Meliaceae yang secara tradisional banyak digunakan untuk mengobati malaria, diare, dan insektisidal. Tumbuhan T. sureni berpotensi sebagai sumber senyawa metabolit sekunder seperti triterpenoid, steroid dan flavonoid. Penelitian ini bertujuan untuk mengisolasi dan menentukan struktur kimia senyawa dari ekstrak etil asetat kulit batang tumbuhan T. sureni. Ekstrak kulit batang T. sureni dimaserasi secara bertahap dengan n-heksana dan etil asetat. pada suhu kamar. Ekstrak etil asetat dipisahkan senyawa-senyawanya dengan menggunakan kombinasi kromatografi kolom pada silika gel sehingga dihasilkan dua senyawa. Struktur kimia senyawa-senyawa tersebut ditetapkan berdasarkan metoda  spektroskopi serta dengan perbandingan spektrum senyawa analog yang diperoleh sebelumnya, sehingga diidentifikasi sebagai senyawa dengan kerangka steroid stigmastan yaitu 3β-D-galaktosa-sitosterol (1) dan 3β-D-galaktosa-sitosterol non-3-enat (2). Berdasarkan penelusuran literatur kedua senyawa tersebut ditemukan pertama kali pada spesies T. sureni, sedangkan senyawa 2 untuk pertama kali ditemukan dari marga Toona.
HUBUNGAN POLIMORFISME GEN TLR 9 (RS5743836) DAN TLR 2 (RS3804099 DAN RS3804100) DENGAN PEMBENTUKAN ANTI-HBS PADA ANAK PASCAVAKSINASI HEPATITIS B Ina Rosalina
Indonesian Journal of Applied Sciences Vol 2, No 3 (2012)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (83.787 KB) | DOI: 10.24198/ijas.v2i3.2746

Abstract

Current hepatitis B remains a worldwide health problem because it can cause chronic liver disease to hepatocellular carcinoma. One of the most important prevention is to vaccinate infants according to program. However, approximately 5-10% of healthy people fail to produce protective antibodies to the hepatitis B pasca vaccination, mean anti-HBs titers obtained <10 mIU/mL, are vulnerable to viral hepatitis B. One of the contributing factors is the disruption toll like receptor. This study aims to determine the Relation of polymorphisms gene toll like receptor 9 and 2 to the formation of anti-HB s in children pasca vaccination hepatitis B. At the time of blood sampling, the subjects were in good health, birth weight> 2500 g, and had a hepatitis B vaccination according to the program. Crossectional study conducted during the period 2010 to 2012. Obtained consisted of 162 infant boys 82 (50.6%) boys, 80 (49.4%) girls, with an age range 6-13.2 months (median 11.3). Were recorded characteristics, age, vaccination schedule, weight, and physical examination prior to blood sampling. Examination of anti-HBs titers, and examination of TLR 9 by restriction enzymes BstNI and TLR 2 by using the enzyme MwoI and MspI, which previously carried out DNA isolation. Statistical analysis using chi square for genotype and to use statistical tests HAPSTAT haplotype. The results obtained by 15 people (9.4%) anti-HBs titers <10mIU/mL (<2:00 - 8.45mIU/mL as non-response, based on the number of non response is obtained prevalence 9.4% (95% CI: 9.86 to 13, 9%). group with anti-HBs levels <10-100 mIU / mL a number of 144people (90.6%) referred to as a response. Detection of polymorphisms TLR9 -1237 T / C (rs5743836 T / C) with the enzyme BstNi. Found 6 the response of people on the subject. Detection of TLR2 gene polymorphism (rs3804099) with an enzyme found in 20 restrictions MwoI the subject response, whereas with the enzyme MspI restriction on TLR2 gene (rs3804100) obtained 1 (100%) heterozygote mutation in subject responses. Of the three haplotype The visible presence of an effect on the formation of anti-HBs after hepatitis B vaccination.
PREDIKSI SIFAT FISIKOKIMIA DAN SPEKTRUM KUERSETIN, ANDROGRAFOLID DAN GLUKOSAMIN MENGGUNAKAN METODE AB INITIO, SEMIEMPIRIS DAN MEKANIKA MOLEKUL SANDRA MEGANTARA
Indonesian Journal of Applied Sciences Vol 3, No 1 (2013)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (9471.935 KB) | DOI: 10.24198/.v3i1.16826

Abstract

AbstractThere are two methods of approach in solving computational chemistry problems which are computational quantum chemistry and computational non-quantum chemistry. Computational quantum chemistry methods are e.g. ab initio and semiempirical, whilst the non-computational quantum chemistry method is molecular mechanics. This study was aimed to find the difference ofcomputational quantum chemistry and non-computational quantum chemistry methods by applying ab initio, semiempirical and molecular mechanics methods to predict the physicochemical properties (Log P, melting point) and spectrum (ultravioletvisible, 1H-NMR, 13C-NMR) of quercetin, glucosamine and andrographolide as a representation of natural bioactive compounds. Results showed that the minimum energy of geometry optimization provided by ab initio methods, while the fastest time for geometry optimization given by molecular mechanics method. Log P prediction was not influenced by the geometry optimization, with error rate: MAD 0.271; MSE 0.204; MFE 0.255 and MAPE 9.66%, meaning the accuracy was good. Melting point prediction was not influenced by the geometry optimization, with error rate: MAD 190.96; MSE 55434.78; MFE -190.96and MAPE 70.82%, meaning the accuracy was not good. Ultraviolet-visible spectrum prediction was affected by the geometry optimization. Ab initio method was the best for predicted λ maximum with error rate: MAD 2.78; MSE 7.90; MFE 2.78 and MAPE 1.15%. The error rate of semiempirical method: MAD 6.46; MSE 42.06; MFE 6.46 and MAPE 2.73%. The error rate of molecularmechanics method: MAD 30.93; MSE 958.65; MFE 30.93 and MAPE 12.94%. The results of 1H-NMR and 13C-NMR spectra prediction was not influenced by the geometry optimization and chemical shift in accordance with the theory of NMR spectra.Keywords: ab initio, semiempirical, molecular mechanics, quercetin, glucosamine, andrographolide
KORELASI KADAR SERUM IFN-γ, EKSPRESI DAN FUNGSI RESEPTOR IFN-γ, DENGAN KEJADIAN TUBERKULOSIS PARU (The Correlation Of Ifn-γ Serum Level, Ifn-γ Receptor Expression And Function, With Pulmonary Tuberculosis) Jahja Teguh Widjaja
Indonesian Journal of Applied Sciences Vol 3, No 3 (2013)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5223.163 KB) | DOI: 10.24198/ijas.v3i3.15045

Abstract

AbstrakUntuk dapat bekerja dengan efektif menghadapi M. tuberculosis, sistim imunitas seluler memerlukan kadar IFN-γ dan reseptor IFN-γ di sel-sel mononuklear yang bekerja optimal. Tujuan penelitian ini adalah menganalisis korelasi antara kadar serum IFN-, ekspresi dan fungsi reseptor IFN-γ, dengan kejadian penyakit Tuberkulosis Paru. Observasi analitik dengan rancangan potong silang yang membandingkan kadar serum IFN-γ, fungsi dan ekspresi reseptor IFN-γ, pada pasien TB Paru dengan pasangannya yang sehat, serta menganalisis korelasi antara variabel-variabel tersebut dengan kejadian penyakit TB Paru. Penelitian dilakukan pada Juli 2009 sampai September 2010, di RS Immanuel Bandung dan laboratorium Stem Cell & Cancer Institute, Jakarta. Dibandingkan pasangan hidupnya, kadar serum IFN-γ pasien TB tidak berbeda bermakna, ekspresi reseptor IFN-γ pasien TB lebih tinggi (p=0,041), sedangkan fungsi reseptor IFN-γ pasien TB lebih rendah (p=0,011). Analisis korelasi mendapatkan satusatunya variabel yang mempunyai korelasi bermakna dengan kejadian tuberkulosis paru adalah fungsi reseptor IFN-γ yang rendah (p=0,026, OR 5,56). Pada pasien TB Paru ekspresi reseptor IFN-γ lebih tinggi, tetapi fungsi reseptor IFN-γ lebih rendah dari pasangan hidup sehat. Fungsi reseptor IFN-γ yang rendah ini mempunyai korelasi bermakna dengan kejadian tuberkulosis paru.Kata kunci: tuberkulosis, kadar serum IFN-γ, ekspresi dan fungsi reseptor IFN-γ.AbstractIn order to work effectively against M. tuberculosis, the cell mediated immune system needs serum level of IFN-γ and its receptors in the surface of mononuclear cells to function optimally. The objective of this study is to analyze the correlation of IFNγ serum level, expression and function of IFN-γ receptor, with pulmonary tuberculosis. Analytical descriptive method with cross sectional design that compared the serum level of IFN-γ, function and expression of IFN-γ receptor in pulmonary tuberculosis patients with their healthy spouses, and analyzing the correlation between these variables with pulmonary tuberculosis. Study was done from July 2009 until September 2010, in Immanuel hospital Bandung and Stem Cell & Cancer Institute Jakarta. Compared with their healthy spouses the IFN-γ serum level in TB patients was not different statistically, the IFN-γ receptor expression in TB patients was higher (p=0,041), however, the IFN-γ receptor function of TB patients was lower (p=0,011). Correlation analysis showed that the only variable had correlation significantly with pulmonary tuberculosis was low function of IFN-γ receptor (p=0,026,OR 5,56). The expression of IFN-γ receptor in pulmonary tuberculosis patients was higher, while the function of IFN-γ receptor was lower than their healthy spouses. The low function of IFN-γ receptor had significantly correlation with pulmonary tuberculosis. Key Words: Tuberculosis, IFN-γ serum level, IFN-γ receptor expression and function.
Aktivitas Antioksidan Minyak Atsiri dan Ekstrak Etanol Kulit Batang Sintok (Cinnamomum sintoc Bl.) terhadap 1,1-difenil-2-pikrilhidrazil (DPPH) Sri Adi Sumiwi; Anas Subarnas; Supriyatna Supriyatna; Marline Abdassah Bratadiredja
Indonesian Journal of Applied Sciences Vol 1, No 1 (2011)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (718.443 KB) | DOI: 10.24198/ijas.v1i1.1803

Abstract

Sintoc (Cinnamomum sintoc Bl.) is a plant which is used as medicine. This plant has been known to have an analgesic antiinflamatory activity, therefore it is predicted to have an antioxidant activity. An investigation on antioxidant activity of sintoc essential oils and ethanolic extract of its cortex using ascorbic acid as standard has been carried out. Essential oils and ethanol extract of sintoc cortex was tested using DPPH (1,1-diphenyl-2-pikril-hidrazil) by measuring absorbance using visible spectrophotometer at 518 nm. The methods of this research were distillation of essential oils and extraction of sintoc cortex, determination of the essential oil and extract concentrations required for 50% inhibition of DPPH radical scavenging effect (IC50) with ascorbic acid as the possitive control. The variation concentration  of essential oils are 15, 5, 1, 0.1, 0.5 ppm and 25, 20, 17, 15, 10 ppm for ethanolic extracts. The results showed that the essential oil showed antioxidant activity with IC50 value was 16.29 ppm (5 times lower than ascorbic acid) and then ethanolic extract showed IC50 value 38.89 ppm (11 times lower than ascorbic acid, IC50 of ascorbic acid was 3.35 ppm).
Efek α-Mangostin terhadap Aktivitas NF-kB, Dan Kaspase-3 Enterosit pada Bayi Tikus Model Enterokolitis Nekrotikans Yoke Ayukarningsih
Indonesian Journal of Applied Sciences Vol 4, No 3 (2014)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (10067.615 KB) | DOI: 10.24198/.v4i3.16817

Abstract

PARAMETER GENETIK DAN KORELASI GENOTIPIK KARAKTER BATANG DENGAN TOLERANSI KEREBAHAN 26 GENOTIP SORGUM (Sorghum bicolor (L.) Moench) Anas Anas; Meddy Rachmadi; Setiawan Setiawan; Mansyur Mansyur
Indonesian Journal of Applied Sciences Vol 5, No 1 (2015)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4811.705 KB) | DOI: 10.24198/ijas.v5i1.16655

Abstract

AbstractInformation of genetic variability and heritability of sorghum stem are very important for lodging-tolerant breeding program. Genotypic correlation of stem morphological character to lodging tolerance is very useful in selection program. The objectives of this experiment were to observe variability and heritability of stem character and to determine stem character that correlate with lodging tolerance. Field experiment was carried out in experimental station of Agriculture Faculty Universitas Padjadjaran. The results showed that all stem characters showed wide genetic variability except stem density and stem diameter. Low and medium heritability were showed also by stem density and stem diameter. Other stem characters showed high estimation of heritability value. Stem elasticity and number of inter-node showed negative correlation to oblique angles of stem. Other stem characters had no correlation with lodging tolerance.Keywords: genotypic correlation, heritability, lodging, sorghum, variability

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