Erat hubungan antara iklim dan tanaman kopi membutuhkan langkah yang tepat dalam perencanaan dan pengembangan tanaman kopi. Sulawesi Selatan merupakan salah satu wilayah penghasil tanaman kopi arabika dan sedang direncanakan pengembangannya. Penelitian ini bertujuan mengetahui sebaran wilayah kesesuaian tanaman kopi Arabika di masa depan berdasarkan hasil proyeksi skenario RCP8.5 periode tahun 2021- 2050 dan 2051-2080 di Sulawesi Selatan, yang digunakan sebagai rekomendasi dalam investasi pengembangan tanaman kopi Arabika di Provinsi Sulawesi Selatan. Data yang digunakan adalah data observasi rata-rata bulanan curah hujan dan suhu udara periode 1989-2018. Data proyeksi yang digunakan merupakan data dari ensemble CORDEX-SEA yaitu model CSIRO dengan resolusi 25x25 km skenario RCP8.5 periode 2021-2080. Periode proyeksi dibagi menjadi dua periode untuk setiap scenario. Kesesuaian agroklimat untuk tanaman kopi Arabika dibuat berdasarkan dari jumlah bobot parameter yang digunakan. Hasil penelitian menunjukkan penurunan kualitas kesesuaian agroklimat pada periode proyeksi untuk tanaman kopi Arabika di Sulawesi Selatan. Hal ini, terlihat dari menyusutnya luas lahan klasifikasi sangat sesuai (S1) pada periode proyeksi dibandingkan dengan periode baseline. Persentase luas lahan untuk klasifikasi S1 untuk periode baseline sebesar 44% lalu mengalami penyusutan pada proyeksi skenario RCP8.5 periode 2021-2050 menjadi 27%. Hasil proyeksi skenario RCP8.5 periode 2051-2080 mengalami penyusutan persentase luas lahan klasifikasi yang signifikan dibandingkan dengan periode baseline yaitu menjadi 5%.
{"title":"Proyeksi Kesesuaian Agroklimat Tanaman Kopi Arabika Berdasarkan Skenario Iklim di Sulawesi Selatan, Indonesia","authors":"Fendy Arifianto, Hardiyanti Ismail","doi":"10.37637/ab.v6i1.1108","DOIUrl":"https://doi.org/10.37637/ab.v6i1.1108","url":null,"abstract":"Erat hubungan antara iklim dan tanaman kopi membutuhkan langkah yang tepat dalam perencanaan dan pengembangan tanaman kopi. Sulawesi Selatan merupakan salah satu wilayah penghasil tanaman kopi arabika dan sedang direncanakan pengembangannya. Penelitian ini bertujuan mengetahui sebaran wilayah kesesuaian tanaman kopi Arabika di masa depan berdasarkan hasil proyeksi skenario RCP8.5 periode tahun 2021- 2050 dan 2051-2080 di Sulawesi Selatan, yang digunakan sebagai rekomendasi dalam investasi pengembangan tanaman kopi Arabika di Provinsi Sulawesi Selatan. Data yang digunakan adalah data observasi rata-rata bulanan curah hujan dan suhu udara periode 1989-2018. Data proyeksi yang digunakan merupakan data dari ensemble CORDEX-SEA yaitu model CSIRO dengan resolusi 25x25 km skenario RCP8.5 periode 2021-2080. Periode proyeksi dibagi menjadi dua periode untuk setiap scenario. Kesesuaian agroklimat untuk tanaman kopi Arabika dibuat berdasarkan dari jumlah bobot parameter yang digunakan. Hasil penelitian menunjukkan penurunan kualitas kesesuaian agroklimat pada periode proyeksi untuk tanaman kopi Arabika di Sulawesi Selatan. Hal ini, terlihat dari menyusutnya luas lahan klasifikasi sangat sesuai (S1) pada periode proyeksi dibandingkan dengan periode baseline. Persentase luas lahan untuk klasifikasi S1 untuk periode baseline sebesar 44% lalu mengalami penyusutan pada proyeksi skenario RCP8.5 periode 2021-2050 menjadi 27%. Hasil proyeksi skenario RCP8.5 periode 2051-2080 mengalami penyusutan persentase luas lahan klasifikasi yang signifikan dibandingkan dengan periode baseline yaitu menjadi 5%. ","PeriodicalId":443368,"journal":{"name":"Agro Bali : Agricultural Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129410734","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}
Hildegardis Missa, Olegario De Fatima Lelo Carion, Yolenta Sisilia Enggong, A. Djalo, Sardina Ndukang
Research in the field of microbiology regarding the identification of endophytic bacteria in aloe vera is still rarely carried out while many people in East Nusa Tenggara often use aloe vera to cure diseases. The purpose of this study was to identify the endophytic bacteria Aloe barbadensis miller and to determine its antibacterial ability against the growth of Staphylococcus aureus and Escsherichia coli bacteria. The research procedures included taking samples using purposive sampling method, isolating endophytic bacteria using streak plate method, testing the antibacterial potential against Staphylococcus aureus and Eschericia coli using the paper disc diffusion method. The results showed that endophytic bacteria found on aloe vera leaves were marked by the growth of several bacterial colonies on Murashige-Skoog media with different shapes and colors, then the colonies were separated and 8 isolates were obtained with isolate codes C1B, C2B, C3B, C4B, C5B, C6B, C7B and C8B. The results of the antibacterial potency test showed that isolates C1B, C3B, C5B and C8B had the potential to inhibit the growth of Staphylococcus aureus characterized by the presence of a clear zone on the surface of the media with the largest size being 20 mm in isolate C1B and the smallest clear zone being 7 mm in isolate C8B, while isolate C1B, C3B, C5B and C8B have the potential to inhibit the growth of Eschericia coli bacteria characterized by the presence of a clear zone on the surface of the media with the largest size of 10 mm in isolate C1B and the smallest clear zone of 7 mm in isolate C8B. The conclusion of this study is that endophytic bacteria have been identified in aloe vera and some of these bacteria have antibacterial abilities against the growth of Staphylococcus aureus and Escherichia coli bacteria.
在微生物学领域，关于芦荟内生细菌鉴定的研究仍然很少进行，而东努沙登加拉的许多人经常使用芦荟来治疗疾病。本研究的目的是鉴定芦荟内生细菌，并测定其对金黄色葡萄球菌和大肠杆菌的抑菌能力。采用目的取样法取样，采用条纹板法分离内生细菌，采用纸片扩散法检测其对金黄色葡萄球菌和大肠杆菌的抑菌潜力。结果表明，芦荟叶片上的内生细菌在Murashige-Skoog培养基上以不同形状和颜色的菌落为标志生长，对菌落进行分离，得到8株分离菌株，分离菌株编码为C1B、C2B、C3B、C4B、C5B、C6B、C7B和C8B。抑菌效能试验结果表明，分离物C1B、C3B、C5B和C8B具有抑制金黄色葡萄球菌生长的潜力，其特征是在培养基表面存在一个透明区，C1B分离物C1B的最大透明区为20 mm, C8B分离物C3B的最小透明区为7 mm;C5B和C8B具有抑制大肠杆菌生长的潜力，其特征是在培养基表面存在一个透明区，分离物C1B的最大透明区为10 mm，分离物C8B的最小透明区为7 mm。本研究的结论是在芦荟中发现了内生细菌，其中一些细菌对金黄色葡萄球菌和大肠杆菌的生长具有抗菌能力。
{"title":"Isolations andAntibacterial Tests of Aloe Vera Endophytic Bacteria (Aloe barbadensis miller) towards Staphylococcus aureus and Eschericia coli","authors":"Hildegardis Missa, Olegario De Fatima Lelo Carion, Yolenta Sisilia Enggong, A. Djalo, Sardina Ndukang","doi":"10.37637/ab.v6i1.964","DOIUrl":"https://doi.org/10.37637/ab.v6i1.964","url":null,"abstract":"Research in the field of microbiology regarding the identification of endophytic bacteria in aloe vera is still rarely carried out while many people in East Nusa Tenggara often use aloe vera to cure diseases. The purpose of this study was to identify the endophytic bacteria Aloe barbadensis miller and to determine its antibacterial ability against the growth of Staphylococcus aureus and Escsherichia coli bacteria. The research procedures included taking samples using purposive sampling method, isolating endophytic bacteria using streak plate method, testing the antibacterial potential against Staphylococcus aureus and Eschericia coli using the paper disc diffusion method. The results showed that endophytic bacteria found on aloe vera leaves were marked by the growth of several bacterial colonies on Murashige-Skoog media with different shapes and colors, then the colonies were separated and 8 isolates were obtained with isolate codes C1B, C2B, C3B, C4B, C5B, C6B, C7B and C8B. The results of the antibacterial potency test showed that isolates C1B, C3B, C5B and C8B had the potential to inhibit the growth of Staphylococcus aureus characterized by the presence of a clear zone on the surface of the media with the largest size being 20 mm in isolate C1B and the smallest clear zone being 7 mm in isolate C8B, while isolate C1B, C3B, C5B and C8B have the potential to inhibit the growth of Eschericia coli bacteria characterized by the presence of a clear zone on the surface of the media with the largest size of 10 mm in isolate C1B and the smallest clear zone of 7 mm in isolate C8B. The conclusion of this study is that endophytic bacteria have been identified in aloe vera and some of these bacteria have antibacterial abilities against the growth of Staphylococcus aureus and Escherichia coli bacteria.","PeriodicalId":443368,"journal":{"name":"Agro Bali : Agricultural Journal","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129781673","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}
Assa Najah Assadiyah, F. D. Dewanti, Agus Sulistyono
Tomat (Solanum lycopersicum L.) merupakan komoditas hortikultura yang kebutuhannya meningkat setiap tahunnya. Salah satu upaya untuk meningkatkan produksi tomat yang optimal dapat dilakukan dengan cara menggunakan media tanam organik dan pupuk organik cair limbah buah. Penelitian ini bertujuan untuk mengetahui komposisi media tanam organik dan konsentrasi pupuk organik cair limbah buah yang tepat terhadap pertumbuhan dan hasil tanaman tomat. Rancangan penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan 2 faktor perlakuan. Faktor pertama adalah komposisi media tanam (M) yang terdiri dari 4 taraf yaitu M0 : Tanah, M1 : Tanah : arang sekam dengan perbandingan 1:1/polybag, M2 : Tanah : pupuk kandang sapi dengan perbandingan 1:1/polybag, M3 : Tanah : arang sekam : pupuk kandang sapi dengan perbandingan 1:1:1/polybag dan konsentrasi pupuk organik cair limbah buah (P) sebagai faktor kedua yang terdiri dari 4 taraf yaitu P0 : 200 ml/l, P1 : 250 ml/l, P2 : 300 ml/l, P3 : 350 ml/l, sehingga didapatkan 16 kombinasi yang masing-masing diulang 3 kali. Hasil penelitian menunjukkan bahwa kombinasi macam media tanam dan konsentrasi pupuk organik cair limbah buah memberikan pengaruh nyata terhadap jumlah buah per tanaman, jumlah buah total per tanaman, bobot buah per periode panen, bobot buah total per tanaman, dan persentase fruit set. Hasil terbaik diperoleh pada perlakuan media tanam tanah : sekam : pupuk kandang sapi 1:1:1 dan konsentrasi pupuk organik cair limbah buah 300 ml/l.
番茄(Solanum lycopersicum L)是一种园艺商品，其需求每年都在增加。利用有机种植媒介和水果废水有机肥料来提高最佳番茄产量的一项努力。本研究旨在确定有机种植媒介的成分和番茄作物生长和结果的适当水果废弃物有机肥料的浓度。研究设计采用了群体随机设计的治疗方法。第一个因素是媒体(M)组成的4种成分即M0程度:土壤,M1:木炭谷壳与比例1:1 -塑料袋覆盖,M2:土壤肥料与比例1:1牛棚/ M3塑料袋覆盖,土地:木炭糠:粪肥牛1:1:1 -塑料袋覆盖比例和液体有机肥污水浓度(P)作为水果4组成的第二个因素就是P0程度:200 ml / l, P1: 250 ml / l, P2: 300 ml / l, P3:350毫升/l，得到16种组合，每个组合重复3次。研究结果表明，各种作物种植媒介和废弃物有机肥料浓度的结合对每株水果的数量、每株水果的总数量、每收获水果的质量、每株水果的总重量、每株水果的总重量和果实的百分比产生了明显的影响。种土壤的方法最好:谷壳:牛粪:300毫升/l的有机肥料浓度。
{"title":"Respon Hasil Tanaman Tomat (Solanum lycopersicum L.) terhadap Macam Media Tanam dan Konsentrasi Pupuk Organik Cair Limbah Kulit Buah","authors":"Assa Najah Assadiyah, F. D. Dewanti, Agus Sulistyono","doi":"10.37637/ab.v6i1.1079","DOIUrl":"https://doi.org/10.37637/ab.v6i1.1079","url":null,"abstract":"Tomat (Solanum lycopersicum L.) merupakan komoditas hortikultura yang kebutuhannya meningkat setiap tahunnya. Salah satu upaya untuk meningkatkan produksi tomat yang optimal dapat dilakukan dengan cara menggunakan media tanam organik dan pupuk organik cair limbah buah. Penelitian ini bertujuan untuk mengetahui komposisi media tanam organik dan konsentrasi pupuk organik cair limbah buah yang tepat terhadap pertumbuhan dan hasil tanaman tomat. Rancangan penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan 2 faktor perlakuan. Faktor pertama adalah komposisi media tanam (M) yang terdiri dari 4 taraf yaitu M0 : Tanah, M1 : Tanah : arang sekam dengan perbandingan 1:1/polybag, M2 : Tanah : pupuk kandang sapi dengan perbandingan 1:1/polybag, M3 : Tanah : arang sekam : pupuk kandang sapi dengan perbandingan 1:1:1/polybag dan konsentrasi pupuk organik cair limbah buah (P) sebagai faktor kedua yang terdiri dari 4 taraf yaitu P0 : 200 ml/l, P1 : 250 ml/l, P2 : 300 ml/l, P3 : 350 ml/l, sehingga didapatkan 16 kombinasi yang masing-masing diulang 3 kali. Hasil penelitian menunjukkan bahwa kombinasi macam media tanam dan konsentrasi pupuk organik cair limbah buah memberikan pengaruh nyata terhadap jumlah buah per tanaman, jumlah buah total per tanaman, bobot buah per periode panen, bobot buah total per tanaman, dan persentase fruit set. Hasil terbaik diperoleh pada perlakuan media tanam tanah : sekam : pupuk kandang sapi 1:1:1 dan konsentrasi pupuk organik cair limbah buah 300 ml/l.","PeriodicalId":443368,"journal":{"name":"Agro Bali : Agricultural Journal","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127538432","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}
‘Kediri Kuning’ is one of the superior varietiy in Indonesia. Fruit quality is an important thing that must be considered. This research reports the effects of GA3 on the quality of ‘Kediri Kuning’ variety of grape. This experiment employed a randomized block design, five treatments, and seven replications. Meanwhile, the treatments employed GA3 concentrations of 0, 25, 50, 75, and 100 ppm. The GA3 was applied by spraying GA3 in inflorescence twice before anthesis, namely on days 14 and 28 after production pruning. Data was analyzed using analysis of variance and the differences between treatment means were analyzed using Least Significant Difference (LSD). This study revealed that GA3 25-100 ppm could more significantly increase fruit sugar content at harvest, fruit length, and fruit diameter than the control group. Seed weight at a concentration of 100 ppm is lower and more statistically significant than that at other treatments. However, all treatments could not induce seedless because the seed remains in the fruit.
{"title":"The Effects of GA3 Application on the Quality of ‘Kediri Kuning’ Variety of Grape (Vitis vinifera L.)","authors":"N. N. A. Mayadewi","doi":"10.37637/ab.v6i1.1217","DOIUrl":"https://doi.org/10.37637/ab.v6i1.1217","url":null,"abstract":"‘Kediri Kuning’ is one of the superior varietiy in Indonesia. Fruit quality is an important thing that must be considered. This research reports the effects of GA3 on the quality of ‘Kediri Kuning’ variety of grape. This experiment employed a randomized block design, five treatments, and seven replications. Meanwhile, the treatments employed GA3 concentrations of 0, 25, 50, 75, and 100 ppm. The GA3 was applied by spraying GA3 in inflorescence twice before anthesis, namely on days 14 and 28 after production pruning. Data was analyzed using analysis of variance and the differences between treatment means were analyzed using Least Significant Difference (LSD). This study revealed that GA3 25-100 ppm could more significantly increase fruit sugar content at harvest, fruit length, and fruit diameter than the control group. Seed weight at a concentration of 100 ppm is lower and more statistically significant than that at other treatments. However, all treatments could not induce seedless because the seed remains in the fruit. ","PeriodicalId":443368,"journal":{"name":"Agro Bali : Agricultural Journal","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130031660","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}
Tujuan penelitian ini adalah mengetahui komposisi media tanam dan konsentrasi POC kulit pisang kepok terbaik, serta mengetahui interaksi diantara keduanya. Penelitian dilakukan di Lahan Percobaan Fakultas Pertanian Universitas Pembangunan Nasional “Veteran” Jawa Timur dengan Rancangan Acak Kelompok (RAK) Faktorial. Faktor pertama adalah komposisi media tanam, yang terdiri dari 4 taraf, yaitu M0 : tanah, M1 : tanah : arang sekam dengan perbandingan 1:1/polybag, M2 : tanah : kompos dengan perbandingan 1:1/polybag, M3 : tanah : arang sekam : kompos dengan perbandingan 1:1:1/polybag. Faktor kedua adalah konsentrasi POC kulit pisang kepok, yang terdiri dari 4 taraf, yaitu K0 : 200 ml.l-1, K1 : 300 ml.l-1, K2 : 400 ml.l-1, K3 : 500 ml.l-1. Komposisi media tanam tanah : sekam : kompos 1:1:1 dan POC kulit pisang kepok konsentrasi 500 ml.l-1 memberikan pengaruh nyata pada umur muncul bunga (44,58 hari), jumlah buah per tanaman periode 3 (36,33 buah), bobot buah per tanaman periode 3 (64,66 gr), dan bobot buah total panen per tanaman (150,87 gr). Kombinasi perlakuan terbaik diperoleh pada perlakuan tanah-sekam-kompos 1:1:1/polybag dan konsentrasi POC 500 ml.l-1.
本研究的目的是确定最优质香蕉皮的种植成分和浓度，以及两者之间的相互作用。这项研究是在东爪哇省“退伍军人”国家发展系(national development university of east爪哇省“退伍军人”)农业学院的一个试验场进行的，该学院有一个随机的群体设计。第一个因素是花园媒体的成分，由M0:土壤、M1:土壤:炭质与1:1/polybag、M2:土壤:土壤:堆肥与1:1/ polybags比较，M3:土壤:木炭层:堆肥与1:1/ polybags比较。第二个因素是波克香蕉皮的浓度，由K0: 200毫升，l-1, K1: 300毫升，l-1, K2: 400毫升，l-1, K3: 500毫升，l-1。媒体种植土壤成分:香蕉皮糠:1:1:1堆肥和POC kepok 500毫升浓度。l-1提供真实影响年龄出现在花(44.58天),每三个时期(36.33植物水果的数量每三个时期(植物),水果的重量完全64,66 gr),水果的重量每庄稼(150.87 gr)。结合最好的治疗方法是通过分解堆肥1/polybag和POC 500毫升的浓度。l-1。
{"title":"Pengaruh Komposisi Media Tanam dan Konsentrasi Pupuk Organik Cair Kulit Pisang Kepok terhadap Produksi Cabai Rawit (Capsicum frutescens L.)","authors":"Alifia Azzahra, G. Guniarti, F. D. Dewanti","doi":"10.37637/ab.v6i1.1076","DOIUrl":"https://doi.org/10.37637/ab.v6i1.1076","url":null,"abstract":"Tujuan penelitian ini adalah mengetahui komposisi media tanam dan konsentrasi POC kulit pisang kepok terbaik, serta mengetahui interaksi diantara keduanya. Penelitian dilakukan di Lahan Percobaan Fakultas Pertanian Universitas Pembangunan Nasional “Veteran” Jawa Timur dengan Rancangan Acak Kelompok (RAK) Faktorial. Faktor pertama adalah komposisi media tanam, yang terdiri dari 4 taraf, yaitu M0 : tanah, M1 : tanah : arang sekam dengan perbandingan 1:1/polybag, M2 : tanah : kompos dengan perbandingan 1:1/polybag, M3 : tanah : arang sekam : kompos dengan perbandingan 1:1:1/polybag. Faktor kedua adalah konsentrasi POC kulit pisang kepok, yang terdiri dari 4 taraf, yaitu K0 : 200 ml.l-1, K1 : 300 ml.l-1, K2 : 400 ml.l-1, K3 : 500 ml.l-1. Komposisi media tanam tanah : sekam : kompos 1:1:1 dan POC kulit pisang kepok konsentrasi 500 ml.l-1 memberikan pengaruh nyata pada umur muncul bunga (44,58 hari), jumlah buah per tanaman periode 3 (36,33 buah), bobot buah per tanaman periode 3 (64,66 gr), dan bobot buah total panen per tanaman (150,87 gr). Kombinasi perlakuan terbaik diperoleh pada perlakuan tanah-sekam-kompos 1:1:1/polybag dan konsentrasi POC 500 ml.l-1.","PeriodicalId":443368,"journal":{"name":"Agro Bali : Agricultural Journal","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121269117","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}
Participatory on-farm evaluation of improved tomato varieties namely;‘Melka salsa, 'Roma VF' and 'Kochero’ against the local variety was carried out in the 2019/20 irrigation season. The trial was laid on unreplicated simple plots using six farmers as replication at irrigation scheme of Saka kebele in Abergelle woreda. The experiment was intended to evaluate and demonstrate the performances of different tomato varieties for farmers, then to collect and assess their feedback. Based on the actual biological and farmers’ preference data, the analysis result underscores the better performance of improved tomato varieties over the local variety by the most yield-related attributes. The average marketable fruit yields of ‘Melka salsa, 'Roma VF', 'Kochero’, and the local variety were 4.62, 3.88, 3.64, and 3.10 ton.ha-1, respectively. The improved varieties had thus yielded an advantage of 72.38%, 37.14%, and 25.72% over the local variety in the given order. Among the improved tomato varieties, ‘Melka salsa' provided the highest fruit yield, and owing the highest score of overall preference attributes rank. The medium-sized, oval-shaped, and tasty flashed ‘Melka salsa’ tomato fruit is most liked by farmers for its less perishability, better market demand and good taste. The ‘Melka salsa’ tomato variety is therefore suggested for up-scaling for similar agro-ecologies that have irrigation schemes and production potential. The biological scientists were also advised to consider the farmers’ preference attributes and feedback as a backup for future tomato breeding studies.
{"title":"Participatory Evaluation of Tomato (Lycopersicon esculentum Mill.) Varieties Under Irrigation Condition at Abergelle Woreda, Ethiopia","authors":"Ademe Mihiretu, M. Asresu","doi":"10.37637/ab.v6i1.1041","DOIUrl":"https://doi.org/10.37637/ab.v6i1.1041","url":null,"abstract":"Participatory on-farm evaluation of improved tomato varieties namely;‘Melka salsa, 'Roma VF' and 'Kochero’ against the local variety was carried out in the 2019/20 irrigation season. The trial was laid on unreplicated simple plots using six farmers as replication at irrigation scheme of Saka kebele in Abergelle woreda. The experiment was intended to evaluate and demonstrate the performances of different tomato varieties for farmers, then to collect and assess their feedback. Based on the actual biological and farmers’ preference data, the analysis result underscores the better performance of improved tomato varieties over the local variety by the most yield-related attributes. The average marketable fruit yields of ‘Melka salsa, 'Roma VF', 'Kochero’, and the local variety were 4.62, 3.88, 3.64, and 3.10 ton.ha-1, respectively. The improved varieties had thus yielded an advantage of 72.38%, 37.14%, and 25.72% over the local variety in the given order. Among the improved tomato varieties, ‘Melka salsa' provided the highest fruit yield, and owing the highest score of overall preference attributes rank. The medium-sized, oval-shaped, and tasty flashed ‘Melka salsa’ tomato fruit is most liked by farmers for its less perishability, better market demand and good taste. The ‘Melka salsa’ tomato variety is therefore suggested for up-scaling for similar agro-ecologies that have irrigation schemes and production potential. The biological scientists were also advised to consider the farmers’ preference attributes and feedback as a backup for future tomato breeding studies.","PeriodicalId":443368,"journal":{"name":"Agro Bali : Agricultural Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128295658","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. A. Malabuyoc, V. Alcantara, Rhebner E. Arocena, F. Elegado
Biosurfactants are microbially derived amphiphilic molecules that can be used as biodegradable emulsifiers in various applications. For biosurfactant production to be economically viable, inexpensive raw materials should be used. In this study, substrate optimization of biosurfactant production from Saccharomyces cerevisiae 2031 was done using molasses as an additional carbon source to glucose, and coco paring meal extract as a nitrogen source. Optimum conditions were determined as pH 5.69, 10.60% (w.v-1) molasses and 7.27% (v.v-1) coco paring meal extract using Box-Behnken design. At these conditions, the obtained responses: namely biomass concentration and % emulsification index determined with kerosene, were 6.43 g.L-1 and 82.81%, respectively. The highest emulsification activity (84.60%) was attained after 4 days of shake-flask fermentation. On the other hand, a bioreactor system observed the maximum yield for emulsification activity (93.33) after 4 days. The biosurfactant extracted was characterized by its total sugar, protein content and surface tension reduction.
生物表面活性剂是微生物衍生的两亲分子，可作为生物可降解乳化剂在各种应用中使用。为了使生物表面活性剂的生产在经济上可行，应该使用廉价的原料。本研究以糖蜜作为葡萄糖的碳源，椰粕提取物作为氮源，对酿酒酵母2031生产生物表面活性剂的底物进行了优化。采用Box-Behnken设计，确定最佳条件为pH 5.69，糖蜜浓度为10.60% (v -1)，可可去皮粕提取物浓度为7.27% (v -1)。在这些条件下，得到的响应:即生物质浓度和煤油乳化指数为6.43 g。L-1和82.81%。摇瓶发酵4天后，乳化率最高，为84.60%。另一方面，生物反应器系统在4天后观察到乳化活性的最大产率(93.33)。对提取的生物表面活性剂进行了总糖、蛋白质含量和表面张力降低的表征。
{"title":"Substrate Optimization for Bioemulsification Using Saccharomyces cerevisiae 2031 by Response Surface Methodology","authors":"J. A. Malabuyoc, V. Alcantara, Rhebner E. Arocena, F. Elegado","doi":"10.37637/ab.v6i1.1044","DOIUrl":"https://doi.org/10.37637/ab.v6i1.1044","url":null,"abstract":"Biosurfactants are microbially derived amphiphilic molecules that can be used as biodegradable emulsifiers in various applications. For biosurfactant production to be economically viable, inexpensive raw materials should be used. In this study, substrate optimization of biosurfactant production from Saccharomyces cerevisiae 2031 was done using molasses as an additional carbon source to glucose, and coco paring meal extract as a nitrogen source. Optimum conditions were determined as pH 5.69, 10.60% (w.v-1) molasses and 7.27% (v.v-1) coco paring meal extract using Box-Behnken design. At these conditions, the obtained responses: namely biomass concentration and % emulsification index determined with kerosene, were 6.43 g.L-1 and 82.81%, respectively. The highest emulsification activity (84.60%) was attained after 4 days of shake-flask fermentation. On the other hand, a bioreactor system observed the maximum yield for emulsification activity (93.33) after 4 days. The biosurfactant extracted was characterized by its total sugar, protein content and surface tension reduction.","PeriodicalId":443368,"journal":{"name":"Agro Bali : Agricultural Journal","volume":"202 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131477989","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}
Production and productivity of upland rice is still very low due to limited water in the upland rice ecosystem. The objective of this study was to evaluate the yields of upland rice varieties at several levels of soil water content. The experiment was conducted at the Growth Centre LLDIKTI Wilayah I Medan from March to July 2013. This research used a factorial randomized block design with two factors and replicated three times. Five upland rice varieties as the first factor, namely Batutegi, Inpago 4, Limboto, Situbagendit, and Situpatenggang. Second factor was four levels of soil water content, namely: 80% of field capacity (FC), 60% of FC, 40% of FC, 20% of FC. The main effect of upland rice varieties and soil water content significantly affected (p<0.05) the productive tiller number, percentage of empty and filled grain, the panicle length, 1000 grain weight, and weight grain per clumps. The interaction effect between upland rice varieties and soil water content showed significant interaction on the panicle length, 1000 grain weight, and weight grain per clumps. Situpatenggang variety showed the best yield characters like productive tiller number, percentage of empty and filled grain than the other four varieties. Combination treatment of Situpatenggang variety with 80% FC showed the highest panicle, 1000 grain weight, and weight grain per clumps. The smallest percentage decreased in grain yield per clumps due to decreased the level of soil water content was found in the Inpago 4 variety, so it can be recommended to plant Inpago 4 on soil which had low level of soil water content.
{"title":"Yield Evaluation of Upland Rice Varieties (Oryza sativa L.) in Several Levels of Soil Water Content","authors":"S. Mayly, A. Rauf, C. Hanum, H. Hanum","doi":"10.37637/ab.v6i1.1093","DOIUrl":"https://doi.org/10.37637/ab.v6i1.1093","url":null,"abstract":"Production and productivity of upland rice is still very low due to limited water in the upland rice ecosystem. The objective of this study was to evaluate the yields of upland rice varieties at several levels of soil water content. The experiment was conducted at the Growth Centre LLDIKTI Wilayah I Medan from March to July 2013. This research used a factorial randomized block design with two factors and replicated three times. Five upland rice varieties as the first factor, namely Batutegi, Inpago 4, Limboto, Situbagendit, and Situpatenggang. Second factor was four levels of soil water content, namely: 80% of field capacity (FC), 60% of FC, 40% of FC, 20% of FC. The main effect of upland rice varieties and soil water content significantly affected (p<0.05) the productive tiller number, percentage of empty and filled grain, the panicle length, 1000 grain weight, and weight grain per clumps. The interaction effect between upland rice varieties and soil water content showed significant interaction on the panicle length, 1000 grain weight, and weight grain per clumps. Situpatenggang variety showed the best yield characters like productive tiller number, percentage of empty and filled grain than the other four varieties. Combination treatment of Situpatenggang variety with 80% FC showed the highest panicle, 1000 grain weight, and weight grain per clumps. The smallest percentage decreased in grain yield per clumps due to decreased the level of soil water content was found in the Inpago 4 variety, so it can be recommended to plant Inpago 4 on soil which had low level of soil water content.","PeriodicalId":443368,"journal":{"name":"Agro Bali : Agricultural Journal","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128614368","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}
Nurkholida Lisa Wulansari, Ratna Dwi Hirma Windriyati, A. Kurniawati, Lafi Na’imatulbayinah
Tomat ceri merupakan jenis sayur yang dapat dibudidayakan dengan metode konvensional di dataran tinggi. Seiring bertambahnya permintaan, pola budidaya tomat ceri hidroponik mulai dikembangkan budidaya dengan teknik hidroponik di dataran rendah. Pertumbuhan tomat ceri dengan teknik hidroponik tidak lepas dari serangan patogen. Salah satu patogen Phytopthora infestans yang menyerang tomat ceri yaitu atau dikenal sebagai penyakit hawar daun bakteri. Penyakit ini dapat menyebabkan kematian pada tanaman. Penelitian ini bertujuan untuk mendapatkan formulasi dosis pengurangan AB-Mix dengan substitusi menggunakan pupuk organik cair dan pupuk hayati dalam menghambat patogen P. infestans. Metode pelaksanaan penelitian menggunakan rancangan lingkungan Rancangan Acak Kelompok terdiri dari 5 perlakuan yaitu P1(100% dosis AB-Mix), P2 (75% dosis AB-Mix+POC+pupuk hayati), P3 (50% dosis AB-Mix+POC+pupuk hayati), P4 (25% dosis AB-Mix+POC+pupuk hayati), P5(0% dosis AB-Mix+POC+pupuk hayati). dengan 6 ulangan. Variabel yang diamati yaitu gejala serangan, masa inkubasi, intensitas penyakit, dan efektivitas penghambatan. Penyakit hawar daun bakteri pada tanaman tomat ceri yang disebabkan oleh patogen P. infestans memiliki ciri-ciri bercak coklat kehitaman pada daun, kemudian menyebar pada ranting dan batang. Gejala lanjut akan menyebabkan daun busuk dan akhirnya mengering. Penggunaan perlakuan mampu menunda masa inkubasi. Perlakuan P5 memiliki intensitas penyakit terendah yaitu 8,51% dan efektivitas penghambatan 81,21%. Hal ini berarti dengan pengurangan pupuk AB-Mix dan penambahan POC serta pupuk hayati pada sistem hidroponik efektif dalam menurunkan gejala penyakit hawar daun bakteri.
{"title":"Efektifitas Formulasi Pupuk Organik Cair dan Pupuk Hayati-P60 Mengendalikan Penyakit Hawar Daun Bakteri pada Tanaman Tomat Ceri (Solanum lycopersicum) Sistem Hidroponik","authors":"Nurkholida Lisa Wulansari, Ratna Dwi Hirma Windriyati, A. Kurniawati, Lafi Na’imatulbayinah","doi":"10.37637/ab.v6i1.1059","DOIUrl":"https://doi.org/10.37637/ab.v6i1.1059","url":null,"abstract":"Tomat ceri merupakan jenis sayur yang dapat dibudidayakan dengan metode konvensional di dataran tinggi. Seiring bertambahnya permintaan, pola budidaya tomat ceri hidroponik mulai dikembangkan budidaya dengan teknik hidroponik di dataran rendah. Pertumbuhan tomat ceri dengan teknik hidroponik tidak lepas dari serangan patogen. Salah satu patogen Phytopthora infestans yang menyerang tomat ceri yaitu atau dikenal sebagai penyakit hawar daun bakteri. Penyakit ini dapat menyebabkan kematian pada tanaman. Penelitian ini bertujuan untuk mendapatkan formulasi dosis pengurangan AB-Mix dengan substitusi menggunakan pupuk organik cair dan pupuk hayati dalam menghambat patogen P. infestans. Metode pelaksanaan penelitian menggunakan rancangan lingkungan Rancangan Acak Kelompok terdiri dari 5 perlakuan yaitu P1(100% dosis AB-Mix), P2 (75% dosis AB-Mix+POC+pupuk hayati), P3 (50% dosis AB-Mix+POC+pupuk hayati), P4 (25% dosis AB-Mix+POC+pupuk hayati), P5(0% dosis AB-Mix+POC+pupuk hayati). dengan 6 ulangan. Variabel yang diamati yaitu gejala serangan, masa inkubasi, intensitas penyakit, dan efektivitas penghambatan. Penyakit hawar daun bakteri pada tanaman tomat ceri yang disebabkan oleh patogen P. infestans memiliki ciri-ciri bercak coklat kehitaman pada daun, kemudian menyebar pada ranting dan batang. Gejala lanjut akan menyebabkan daun busuk dan akhirnya mengering. Penggunaan perlakuan mampu menunda masa inkubasi. Perlakuan P5 memiliki intensitas penyakit terendah yaitu 8,51% dan efektivitas penghambatan 81,21%. Hal ini berarti dengan pengurangan pupuk AB-Mix dan penambahan POC serta pupuk hayati pada sistem hidroponik efektif dalam menurunkan gejala penyakit hawar daun bakteri.","PeriodicalId":443368,"journal":{"name":"Agro Bali : Agricultural Journal","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128780591","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}
Media tanam dan konsentrasi zat pengatur tumbuh IAA merupakan beberapa faktor penunjang keberhasilan stek pucuk tanaman kayu putih. Tujuan penelitian ini adalah untuk mengetahui pengaruh media tanam dan konsentrasi zat pengatur tumbuh IAA terhadap pertumbuhan stek pucuk tanaman kayu putih (Melaleuca cajuputi). Penelitian ini dilaksanakan di BKPH Perhutani Tuban, Kecamatan Semanding, Kabupaten Tuban. Rancangan penelitian menggunakan Rancangan Acak Lengkap (RAL) Faktorial dengan dua faktor perlakuan yang diulang tiga kali. Faktor pertama adalah media tanam (M), yang terdiri dari 4 taraf yaitu tanah (M0), tanah + pupuk kandang (M1), tanah + pasir (M2), dan tanah + pasir + pupuk kandang (M3), dan konsentrasi zat pengatur tumbuh IAA sebagai faktor kedua, yang terdiri dari 4 taraf yaitu 0 ppm (R0), 50 ppm (R1), 100 ppm (R2), dan 150 ppm (R3), sehingga didapatkan 16 interaksi perlakuan. Hasil penelitian menunjukkan bahwa interaksi media tanam dan konsentrasi zat pengatur tumbuh IAA memberikan pengaruh nyata terhadap parameter jumlah cabang, jumlah daun, dan panjang akar. Perlakuan media tanam berpengaruh nyata terhadap parameter jumlah akar primer dan berat segar akar, sedangkan konsentrasi ZPT IAA berpengaruh nyata terhadap perlakuan waktu muncul tunas.
{"title":"Pengaruh Media Tanam dan Konsentrasi Zat Pengatur Tumbuh IAA terhadap Pertumbuhan Stek Pucuk Tanaman Kayu Putih (Melaleuca cajuputi)","authors":"Risma Handayani Darise, G. Guniarti, Nova Triani","doi":"10.37637/ab.v6i1.1120","DOIUrl":"https://doi.org/10.37637/ab.v6i1.1120","url":null,"abstract":"Media tanam dan konsentrasi zat pengatur tumbuh IAA merupakan beberapa faktor penunjang keberhasilan stek pucuk tanaman kayu putih. Tujuan penelitian ini adalah untuk mengetahui pengaruh media tanam dan konsentrasi zat pengatur tumbuh IAA terhadap pertumbuhan stek pucuk tanaman kayu putih (Melaleuca cajuputi). Penelitian ini dilaksanakan di BKPH Perhutani Tuban, Kecamatan Semanding, Kabupaten Tuban. Rancangan penelitian menggunakan Rancangan Acak Lengkap (RAL) Faktorial dengan dua faktor perlakuan yang diulang tiga kali. Faktor pertama adalah media tanam (M), yang terdiri dari 4 taraf yaitu tanah (M0), tanah + pupuk kandang (M1), tanah + pasir (M2), dan tanah + pasir + pupuk kandang (M3), dan konsentrasi zat pengatur tumbuh IAA sebagai faktor kedua, yang terdiri dari 4 taraf yaitu 0 ppm (R0), 50 ppm (R1), 100 ppm (R2), dan 150 ppm (R3), sehingga didapatkan 16 interaksi perlakuan. Hasil penelitian menunjukkan bahwa interaksi media tanam dan konsentrasi zat pengatur tumbuh IAA memberikan pengaruh nyata terhadap parameter jumlah cabang, jumlah daun, dan panjang akar. Perlakuan media tanam berpengaruh nyata terhadap parameter jumlah akar primer dan berat segar akar, sedangkan konsentrasi ZPT IAA berpengaruh nyata terhadap perlakuan waktu muncul tunas.","PeriodicalId":443368,"journal":{"name":"Agro Bali : Agricultural Journal","volume":"5 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132242296","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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