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
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.
香蕉(M. acuminata x balbisiana)是菲律宾各地，特别是棉兰老岛大型种植园中丰富的木质纤维素废弃物，可作为底物用于生产乙醇等高价值产品。为了弥补由于香蕉假茎水分含量高而导致的基于底物总重量的低产量，主要的挑战是将这种木质纤维素生物质更有效地转化为单体糖，然后转化为乙醇，以实现具有成本竞争力的产量。因此，本研究评估了固体负载、孵育时间和酶用量对酶解过程中还原糖产率的影响，并试图通过响应面法(Response Surface Methodology, RSM)，特别是采用Box-Behnken设计，对影响因素进行优化。经预处理的香蕉假茎在培养时间为20 h，固载量为15 g，酶浓度为0.55%的条件下，还原糖产量显著提高。乙醇产量在解毒底物中观察到较高，尽管生物质在未解毒底物中较高。据我们所知，本研究是菲律宾首次尝试以香蕉假茎废料为原料生产第二代乙醇。
{"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}
J. P. Madigal, B. G. S. Calixto, Michael Duldulao, T. Ubiña, S. Agrupis
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.
{"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}
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.
热带地区冰核活性菌引起冻害的研究尚未得到广泛报道。本研究的目的是确定索柑叶片上冰成核活性细菌的数量和基于冰形成温度的冰成核活性细菌的类别。索柑叶的采集采用目的取样法。在海拔1500米、1800米和2000米的三个阶段采集有霜斑的叶片。在Nutrien Agar 2,5%甘油(NAG)培养基上采用涂布平板法进行细菌分离。冰成核活度采用管形成核试验法测定。采用Thomas系列.3.3.3的多管成核试验对INA菌群进行估计。结果表明，在海拔1800和2000 m站点采集的叶片样品中，INA细菌种群数最高，为6.9 × 104;在海拔1500 m站点采集的叶片样品中，INA细菌种群数最低，为5 × 103。根据成冰温度可知，侵染索柑高原叶片的INA细菌为B类和C类INA细菌。
{"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}
Sakral Hasby Puarada, Riris Nadia Syafrilia Gurning, W. Harahap
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.
{"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}
F. Fitria, Juita Damanik, Koko Tampubolon, Aisar Novita, Rini Susanti
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.
{"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}
Oktavia Nurmawaty Sigiro, Sukmayani Sukmayani, Nur Habibah, Kiki Kristiandi
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.
{"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}
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.
{"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}
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.
{"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}
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)
需要对甘薯植株的叶子进行落叶处理，以降低营养生长的速度，因为营养生长的速度与生殖生长不平衡。甘薯植株的部分主要由茎和叶组成。本研究的目的是通过不同落叶和品种的农艺试验，获得具有块茎和秸秆产量标准的甘薯品种。将栽培品种作为第一因素的因子随机设计，(C)包括:C₁(β -2)， C₂(Kuningan Merah)， C₃(BIS OP-61-OP-22)。Defoliated (D)的第二个因子，即:D₁(Defoliation 16 wap)， D₂(Defoliation 12 wap)， D₃(Defoliation 8 wap)，有3个重复。结果表明:RGR值越高，URL值越高，说明植物新物质的平衡与植物进行光合作用的能力有关。品种价值β -2 RGR (8-4) = 71 mg。g (1) d (1) d (1) d (1) d (1) d (1) d (1) d (1) d (1) d (1) d (1) d (1) d (1) d(2)。BIS OP-61-OP-22品种的大标准(51.22块茎/田)和中标准(44.33块茎/田)。β -2品种的标准小(45.56块茎/块)。BIS OP-61-OP-22(高双用途)、Beta-2和Kuningan Merah(高产根)的比值F/R
{"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}
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
{"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}
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