Agro Bali: Agricultural Journal最新文献

{"title":"PRE-TREATMENT AND ENZYMATIC HYDROLYSIS OF BANANA (Musa acuminata x balbisiana) PSEUDOSTEM FOR ETHANOL PRODUCTION","authors":"G. E. Araguirang, Arianne Joyce R. Arizala, Eden Beth B. Asilo, J. L. Batalon, Erin B. Bello, J. P. Madigal, J. Monge, Nicole Angelique L. Sanchez, F. Elegado","doi":"10.37637/AB.V3I2.608","DOIUrl":"https://doi.org/10.37637/AB.V3I2.608","url":null,"abstract":"Banana (M. acuminata x balbisiana) is an abundant lignocellulosic waste material in large plantations all over the Philippines, especially in Mindanao, which can be utilized as substrate in producing high-value products like ethanol. To compensate for the low yield based on total weight of substrate due to the high moisture content of banana pseudostem, there is the primary challenge to make the conversion of this lignocellulosic biomass into monomeric sugar and then into ethanol more efficiently in order to achieve yields that would make it cost-competitive. Hence, this study evaluated the effects of solid loading, incubation time and amount of enzyme on yield of reducing sugars in the enzymatic hydrolysis process and attempted to optimize the significant factors by Response Surface Methodology (RSM), specifically using Box-Behnken design. There was significant improvement on the reducing sugar yield of the pretreated banana pseudostem at 20 h incubation time, 15 g solid loading and 0.55 % enzyme concentration. Ethanol production was observed to be higher in the detoxified substrate although biomass was higher for the non-detoxified substrate. As to our knowledge, the present study is the first attempt to produce second generation ethanol using banana pseudostem waste as feedstock in the Philippines.","PeriodicalId":132966,"journal":{"name":"Agro Bali: Agricultural Journal","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123833850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of Nipa (Nypa fruticans) Sap Closed Collection Vessel","authors":"J. P. Madigal, B. G. S. Calixto, Michael Duldulao, T. Ubiña, S. Agrupis","doi":"10.31224/osf.io/szwe4","DOIUrl":"https://doi.org/10.31224/osf.io/szwe4","url":null,"abstract":"The ultimate goal of the present study was to develop a secure, safe, and hygienic nipa sap collection system for bioethanol production, with the aim of preserving its physico-chemical properties such as physical appearance, pH and sugar brix by reducing the rate of fermentation while attached to the peduncle. The developed collection system was evaluated in terms of the physical and chemical properties of nipa sap collected and ethanol yield in comparison to the traditional and existing collection system used by the nipa community which utilizes bamboo shingle as their collector. Physical appearance of the sap collected using the designed collection system had no foreign materials after harvesting while the traditional collection system had shown traces of insect infestation. The sap that was produced for both of the designed and traditional collection system was milky-white and yellowish-white in color respectively. There was a significant difference in terms of pH concentration of the sap collected using the designed collection system compared to the sap collected using the traditional system overtime. Sugar brix of nipa sap collected using designed collection system is significantly higher than the sap collected using traditional system. A total ethanol yield of 32.25% and 75.54% was obtained for the designed and traditional collection system respectively. Cost Analysis revealed that the designed collection system was found to be cheaper (PhP 11.93) than the traditional collection system (PhP. 20.00). The developed closed collection system can preserved the chemical properties of the nipa sap and could prevent acceleration of fermentation and the deterioration of its potential to yield more ethanol.","PeriodicalId":132966,"journal":{"name":"Agro Bali: Agricultural Journal","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134024037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"JENIS DAN POPULASI BAKTERI ICE NUCLEATION ACTIVE PENYEBAB LUKA BEKU PADA DAUN JERUK KEPROK SOE DI DATARAN TINGGI MUTIS","authors":"Hildegardis Missa, A. B. Baunsele","doi":"10.37637/AB.V3I2.585","DOIUrl":"https://doi.org/10.37637/AB.V3I2.585","url":null,"abstract":"Research on ice nucleation-active bacteria causes frost injury from tropic areas has not been widely publicized. The purpose of this study was to determine the population of Ice Nucleation-Active Bacteria on Soe tangerines leaves and the class of Ice Nucleation-Active bacteria based on Ice formation temperatures. The collecting of Soe tangerine leaves used the purpose sampling method. Leaves with frost blotches were collected from three stages at altitudes of 1500, 1800, and 2000 meters above sea level (m asl). Bacterial isolation was carried out by the spread plate method on Nutrien Agar 2,5 % glycerol (NAG)  media. Ice Nucleation activity was determined by the tube nucleation test method. Estimation of INA bacterial population was conducted by the multiple-tube nucleation test with Thomas series .3.3.3. The result showed that the highest INA bacterial population was 6.9x104 which was found in leaves samples collected from stations 1800 and 2000 m asl, and the lowest population i.e. 5,4x103 on leaf samples from station 1500 m asl. Based on the temperature of ice formation, it was known that INA bacteria that attack the Soe tangerines leaves Mutis plateau are the INA bacteria class B and C.","PeriodicalId":132966,"journal":{"name":"Agro Bali: Agricultural Journal","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116718562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"EFISIENSI TEKNIS RANTAI PASOK JAGUNG TINGKAT PETANI DAN PENGUMPUL DENGAN METODE DATA ENVELOPMENT ANALYSIS (DEA) KECAMATAN BATANG KUIS, DELI SERDANG, SUMATERA UTARA","authors":"Sakral Hasby Puarada, Riris Nadia Syafrilia Gurning, W. Harahap","doi":"10.37637/AB.V3I2.629","DOIUrl":"https://doi.org/10.37637/AB.V3I2.629","url":null,"abstract":"Indonesia merupakan negara agraris yang memiliki sektor pertanian yang besar. dimana sektor pertanian tersebut terus berkembang pesat. Selain sektor pertanian yang besar, hasil pertanian yang sangat dikenal adalah tanaman pangan. Tanaman pangan merupakan salah satu sektor yang berkembang pesat dalam pertanian Indonesia. Jenis tanaman yang dibudidayakan dalam tanaman pangan meliputi tanaman padi, jagung dan kedelai serta ubi kayu. Tanaman pangan jagung merupakan salah satu komoditas yang memiliki sumber vitamin dan mineral. Pengukuran efisiensi kinerja manajemen rantai pasok menjadi menjadi alternatif penyelesaian masalah yang sedang berjalan dalam Tanaman Jagung melalui pengukuran kinerja dan efisiensi Kinerja rantai pasok. Lokasi penelitian berada di Kecamatan Batang Kuis Kabupaten Deli Serdang Sumatera Utara dengan pertimbangan bahwa Kecamatan Batang Kuis merupakan salah satu Kecamatan yang menjalankan rantai pasok jagung. Penelitian ini bertujuan untuk melihat bagaimana kinerja rantai pasok dan tingkat efisiensi kinerja rantai pasok jagung dari petani dan pengumpul. Metode pengukuran kinerja menggunakan Supply Chain Operation Reference (SCOR) yang akan melihat hasil pengukuran berdasarkan indikator-indikator pengukuran. Kemudian untuk melihat dan membandingkan nilai efisiensi menggunakan metode Data Envelopment Analysis (DEA) dengan membandingkan Desicions Making Unit (DMU) 1 dengan DMU lain yaitu pengumpul lain yang ada didalam objek penelitian. Dari hasil penelitian didapatkan bahwa dalam pengukuran kinerja petani mitra, didapatkan hasil bahwa ada tiga indikator dari pengukuran yang masih dikategorikan tidak baik (parity). Kemudian, dari hasil perbandingan efisiensi didapatkan bahwa ada 23 petani mitra yang  inefisien dikarenakan input yang dijalankan tidak maksimal sehingga output yang didapatkan belum efisien. Sementara itu, dalam perbandingan dan pengukuran efisiensi teknis kinerja antara pengumpul  rukun sena dan karya jagung didapatkan bahwa rukun sena lebih efisien dibandingkan dengan karya jagung. Artinya, input yang telah dijalankan sudah maksimal sehingga ouput yang didapatkan dikategorikan efisien.","PeriodicalId":132966,"journal":{"name":"Agro Bali: Agricultural Journal","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116001233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MODEL PENGEMBANGAN PETANI DALAM MENGENDALIKAN GULMA SECARA BIOHERBISIDA DAN HERBISIDA KIMIA PADA AREAL TANAMAN JAGUNG","authors":"F. Fitria, Juita Damanik, Koko Tampubolon, Aisar Novita, Rini Susanti","doi":"10.37637/AB.V3I2.618","DOIUrl":"https://doi.org/10.37637/AB.V3I2.618","url":null,"abstract":"Penelitian ini bertujuan untuk mengetahui model pengembangan petani dalam pengendalian gulma terhadap bioherbisida dan herbisida kimia pada tanaman jagung di Kabupaten Langkat. Penelitian dilakukan pada daerah penanaman jagung di Kecamatan Stabat, Kabupaten Langkat dari April sampai Juni 2020. Metode penelitian ini menerapkan  metode kualitatif  dan kuantitatif pada 34 sampel petani. Metode pengumpulan data dengan observasi dan kuisioner. Teknik analisis data menggunakan pengujian asumsi klasik dan statistik menggunakan software SPSS v.25. Hasil penelitian menunjukkan bahwa penggunaan bioherbisida dan herbisida kimia berpengaruh nyata terhadap model pengembangan petani dalam mengendalikan gulma pada pertanaman jagung di Kabupaten Langkat. Pengaruh bioherbisida dapat menurunkan sedangkan herbisida kimia dapat meningkatkan respon petani dalam mengendalikan gulma pada pertanaman jagung di Kabupaten Langkat. Model pengembangan petani terhadap herbisida kimia lebih dominan dibandingkan bioherbisida.","PeriodicalId":132966,"journal":{"name":"Agro Bali: Agricultural Journal","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134287551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"POTENSI BAHAN PANGAN TEPUNG BIJI DURIAN SETELAH MELALUI MASA PENYIMPANAN","authors":"Oktavia Nurmawaty Sigiro, Sukmayani Sukmayani, Nur Habibah, Kiki Kristiandi","doi":"10.37637/AB.V3I2.623","DOIUrl":"https://doi.org/10.37637/AB.V3I2.623","url":null,"abstract":"Biji durian merupakan limbah selain kulit dari buah durian. Pemanfaatan biji durian sudah mulai banyak dilakukan baik berupa tepung ataupun hingga olahan makanan namun penelitian terhadap daya simpan dan kandungan dari tepung biji tersebut belum dilakukan. Penelitian ini dilakukan dengan melakukan penepungan, penyimpanan, dan kemudian pegujian terhadap tepung biji durian tersebut. Dari hasil pengujian diketahui bahwa kandungan tepung biji durian setelah dilakukan penyimpanan selama delapan bulan yaitu alkaloid yang tinggi, rendah kandungan terpenoid, kadar serat yang lebih tinggi dari tepung gandum, kadar air dan karbohidrat yang tinggi.","PeriodicalId":132966,"journal":{"name":"Agro Bali: Agricultural Journal","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130284173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PENGARUH BERBAGAI DOSIS POC HASIL FERMENTASI BIOGAS TERHADAP PERTUMBUHAN BIBIT TANAMAN KOPI ARABIKA (Coffea arabica (L.) Lini S 795)","authors":"Makmur Makmur, Harli A. Karim","doi":"10.37637/AB.V3I2.565","DOIUrl":"https://doi.org/10.37637/AB.V3I2.565","url":null,"abstract":"Masalah yang dihadapi dalam pengembangan tanaman kopi adalah masalah pembibitan yang berkwalitas dan pemupukan di tingkat petani. Hal ini mendorong dilakukan penelitian pupuk organik cair. Penelitian ini bertujuan untuk menganalisis pengaruh aplikasi berbagai dosis pupuk organi cair terhadap Pertumbuhan bibit tanaman kopi.  Penelitian ini menggunakan Rancangan Acak Kelompok (RAK), yang terdiri dari enam perlakuan pemberian pupuk organik cair (POC), yaitu 50 ml pupuk organik cair per liter air, 100 ml pupuk organik cair per liter air,150 ml pupuk organik cair  per liter air, 200 ml pupuk organik cair per liter air, 250 ml pupuk organic cair per liter air dan 300 ml pupuk organik cair per liter air. Setiap perlakuan diulang 5 kali sehingga terdapat 30 unit percobaan. Hasil penelitian menunjukkan bahwa parameter tinggi tanaman dan jumlah daun berpengaruh sangat nyata pada taraf uji Duncan 0,05 dan 0,01 dan memberikan rata-rata hasil tertinggi pada perlakun 200 ml per liter air dengan nilai 39,6 cm terhadap tinggi tanaman, dan perlakuan 50 ml perliter air dengan nilai 39,8 helai terhadap jumlah daun pada pertumbuhan bibit tanaman kopi. Parameter diameter batang pada perlakuan  50 ml per liter air memberikan hasi tertinggi dengan nilai 3,96 mm bibit tanaman kopi.","PeriodicalId":132966,"journal":{"name":"Agro Bali: Agricultural Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129251542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PENGARUH JENIS PUPUK CAIR DAN CARA PERLAKUAN TERHADAP PERTUMBUHAN STEK DAUN Begonia glabra Aubl.","authors":"I. Wibawa, I. N. Lugrayasa","doi":"10.37637/AB.V3I2.578","DOIUrl":"https://doi.org/10.37637/AB.V3I2.578","url":null,"abstract":"Begonia adalah salah satu marga besar dalam kelompok Angiospermae yang memiliki kekhasan karakter daun asimetris. Keistimewaan Begonia terutama terletak pada daunnya yang indah, menjadikannya sangat cocok dijadikan tanaman hias. Perbanyakan Begonia dapat dilakukan dengan cara generatif dan vegetatif. Perbanyakan secara vegetatif adalah cara perbanyakan tanaman dengan menggunakan bagian dari tanaman seperti daun, batang, cabang dan akar. Keberhasilan kegiatan penyetekan pada tumbuhan dipengaruhi oleh berbagai faktor, yaitu jenis setek dan faktor lingkungan termasuk kelembaban temperatur dan cahaya serta nutrisi dari media tanam. Kualitas media tanam dapat ditingkatkan dengan penambahan pupuk. Penelitian ini bertujuan untuk mengetahui pengaruh beberapa jenis pupuk cair, serta cara perlakuannya terhadap pertumbuhan stek daun B. glabra. Hasil penelitian menunjukkan bahwa perlakuan POC/R berpengaruh nyata terhadap kecepatan tumbuhnya tunas dan tinggi tanaman. Perlakuan POC/R menunjukkan pertumbuhan yang lebih baik, yang berbeda nyata dengan perlakuan lainnya. Semua perlakuan pupuk berpengaruh terhadap kecepatan tumbuhnya tunas, namun tidak berpengaruh nyata terhadap parameter panjang akar. Perbedaan jenis pupuk cair dan cara perlakuannya memberikan hasil yang berbeda pula.","PeriodicalId":132966,"journal":{"name":"Agro Bali: Agricultural Journal","volume":"156 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133685424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"EFEK DEFOLIASI TERHADAP LAJU PERIMBANGAN TANAMAN UBI JALAR","authors":"Edyson Indawan, R. Julianto, Poppy Indri Hastuti","doi":"10.37637/AB.V3I2.609","DOIUrl":"https://doi.org/10.37637/AB.V3I2.609","url":null,"abstract":"Defoliation of the leaves of sweet potato plants needs to be done to reduce the rate of vegetative growth, because the rate of vegetative growth that is not balanced with generative growth. The section of the sweet potato plant consists mainly of stems and leaves. The purpose of this study is to obtain sweet potato cultivars with criteria of tubers and stover yields through agronomic experiments with different defoliation and cultivars. Factorial Randomized Design by placing Cultivars as the first factor, (C) included: C₁ (Beta-2), C₂ (Kuningan Merah), C₃ (BIS OP-61-OP-22). The second factor of Defoliated (D), namely : D₁ (Defoliation 16 wap), D₂ (Defoliation 12 wap), D₃ (Defoliation 8 wap), with 3 replications. The results showed that: A high RGR value is followed by a large price URLˊ, meaning that the balance of new plant material is related to the ability of plants to carry out photosynthesis. Cultivar value Beta-2 RGR (8-4) = 71 mg.gˉ¹ dayˉ¹, Kuningan Merah URLˊ(8-12) = 65 mg.cmˉ². BIS OP-61-OP-22 cultivars produce large criteria (51.22 tubers/plot) and medium criteria (44.33 tubers/plot). Beta-2 cultivars produce small criteria (45.56 tubers/plot). Ratio F/R from BIS OP-61-OP-22 cultivars (high dual-purpose), cultivars Beta-2 and Kuningan Merah (high root production)","PeriodicalId":132966,"journal":{"name":"Agro Bali: Agricultural Journal","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125122354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"IDENTIFIKASI ANGGREK ALAM PADA KAWASAN RAWAN GANGGUAN DI SUAKA MARGA SATWA BUKIT RIMBANG DAN BUKIT BALING RESORT KUANTAN SINGINGI","authors":"Pebra Heriansyah, Seprido Seprido, Desta Andriani","doi":"10.37637/AB.V3I2.583","DOIUrl":"https://doi.org/10.37637/AB.V3I2.583","url":null,"abstract":"Anggrek alam merupakan kekayaan yang dimiliki oleh suatu Kawasan, sehingga keberadaannya perlu diidentifikasi agar tidak terjadi kepunahan. Tujuan penelitian ini adalah untuk mengidentifikasi anggrek alam di Kawasan Rawan Gangguan di Suaka Marga Satwa Bukit Rimbang dan Bukit Baling Resort Kuantan Singingi. Metode pengumpulan data dalam penelitian ini menggunakan metode purposive sampling melalui tahapan identifikasi baik dengan cara pengambilan hasil foto atau gambar dan spesimen hasilnya akan diidentifikasi dengan bantuan buku identifikasi. Kesimpulan penelitian ini adalah ditemukan 12 jenis anggrek dan 10 genera di Kawasan Rawan Gangguan Suaka Marga Satwa Bukit Rimbang dan Bukit Baling, dari ketinggian 90 – 200 mdpl. Dari 12 jenis ini ada beberapa jenis yang terancam punah yaitu Grammatophyllum speciosum Blume hanya ditemukan di satu titik saja, Dendrobium aloifolium (Blume) Reichb.f, Robiquetia spathulata (Blume) J.J.Smith, Epigeneium sp, Cimbidium spp, ditemukan di 2 titik","PeriodicalId":132966,"journal":{"name":"Agro Bali: Agricultural Journal","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115376332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}