JURNAL BUDIDAYA PERTANIAN最新文献

{"title":"Analisis Faktor-Faktor Erosi Tanah, Dan Tingkat Bahaya Erosi Dengan Metode Rusle Di DAS Wai Batu Merah Kota Ambon Provinsi Maluku","authors":"R. Osok, Silwanus M. Talakua, Ellisa J Gaspersz","doi":"10.30598/JBDP.2018.14.2.89","DOIUrl":"https://doi.org/10.30598/JBDP.2018.14.2.89","url":null,"abstract":"The study was conducted in July-October 2016 in the Wai Batu Merah Watershed, Ambon City, Maluku Province with an area of ​​685.14 ha covering the Village of Batu Merah and parts of Soya Village. This research was carried out with the aim of 1) determining the factors that affect erosion, 2) determining the amount and level of soil erosion hazard, 3) determining the direction of land rehabilitation that is suitable for controlling erosion. The research method is a survey method with a synthetic and analytic approach with flexible observation distance based on land units. The method of determining the amount of erosion is based on the RUSLE method (Renard et al., 1997) and the erosion hazard level based on FAO criteria (FAO, 1979) in Ponce-Hernandez (2004). The results found are 1) Factors affecting erosion in the Wai Batu Merah watershed are rainfall erosivity (R), soil erodibility (K), topography (LS), vegetation (C), soil conservation practice (P). Annual rainfall erosivity factor = 2419.03 ton.m/ha/cm-rain. For monthly erosivity, the highest erosivity in July is 537.34 ton.m/ha/cm-rain, followed by June at 526.03 tons.m/ha/ cm-rain. The soil erodibility factor is classified as very low, medium and rather high. Soils with a rather high erodibility level are Thapto-Histic Hydraquents with a K value of 0.380 classified as a rather high class. This means that if other erosion factors are in identical conditions, the potential for land degradation due to erosion in this soil is higher than other soils in the study area. While the low erodibility level is Lithic Udorthents and Typic Fluvaquents with K values ​​of 0.175 and 0.178, respectively. This indicates that these lands are more resistant to land degradation due to erosion compared to other lands in the Wae Batu Merah watershed. The lowest LS factor value is in land units that have a slope of 0-3% and 3-8% with an LS value of 0.25. In land units that have a slope of 8-15%, the LS value is 1.2, in land units with a slope of 15-30%, the LS value is 4.25, and the land unit with a slope of 30-45%, has an LS value of 9.50; while land units that have a slope of 45-65% and> 65%, the LS value is 12.0, as well as the highest LS value in all land units. Vegetation factor or soil management factor with certain plants is settlement value C = 1; scrub with a value of C = 0.3; and secondary dryland forest with a value of C = 0.005. While the P value for all land units is 1.00 because there is no found soil conservation action practiced in the Wae Batu Merah watershed. 2). The amount and level of erosion that occurred at the study site was erosion in the classification of slight, moderate, high and very high. The level of severe erosion has an average erosion of 2326.56 tons/ha/year covering an area of ​​297.06 ha or 43.36% and is the largest erosion. High erosion rates have an average erosion of 142.1 tons/ha/year covering 249.05 ha or 36.35%. Moderate erosion rates have an average erosion of 30.58 tons/ha/y","PeriodicalId":253388,"journal":{"name":"JURNAL BUDIDAYA PERTANIAN","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114168516","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":"Dampak Fenomena El Nino dan La Nina Terhadap Keseimbangan Air Lahan Pertanian dan Periode Tumbuh Tersedia di Daerah Waeapo Pulau Buru","authors":"Siti Lailatul Nangimah, Samuel Laimeheriwa, R. Tomasoa","doi":"10.30598/JBDP.2018.14.2.66","DOIUrl":"https://doi.org/10.30598/JBDP.2018.14.2.66","url":null,"abstract":"The study aimed to determine the years of events El Nino and La Nina, analyze the effects of El Nino and La Nina events on water balance, and determine the available growing periods in Waeapo areas under various rainfall conditions. Climate data analysis was carried out with the following stages: a) generation of rainfall data; b) analysis of extreme rainfall of El Nino and La Nina; c) calculation of land water balance using the Thornthwaite-Mather method; and d) determination of available growing period under various rainfall conditions. The results showed that in the last 30 years in the Waeapo area, there were eight times of a phenomenon of extreme dry rainfall (El-Nino), with an average intensity of once every three years. The phenomenon of extreme wet rainfall (La-Nina) occurred six times with an average intensity of once every five years. Based on the calculation of land water balance, during El-Nino rainfall conditions, there was an annual groundwater deficit of 403 mm or 172% of normal conditions, whereas during La-Nina rainfall conditions there was a surplus of annual groundwater of 775 mm or 222% of normal conditions. When an El-Nino phenomenon occurred, the available growing period was only five months (January to May), and when the La-Nina phenomenon occurred, the growing period was available throughout the year (12 months). \u0000Keywords: El Nino, La Nina, land water balance, available growing period, Buru Island \u0000  \u0000ABSTRAK \u0000Penelitian bertujuan untuk menentukan tahun-tahun kejadian El Nino dan La Nina, menganalisis dampak kejadian El Nino dan La Nina terhadap neraca air lahan, dan menetapkan periode tumbuh tersedia di daerah Waeapo pada berbagai kondisi curah hujan. Analisis data iklim dilakukan dengan tahapan sebagai berikut: a) pembangkitan data curah hujan; b) analisis curah hujan ekstrim El Nino dan La Nina; c) perhitungan neraca air lahan menggunakan metode Thornthwaite-Mather; dan d) penentuan periode tumbuh tersedia pada berbagai kondisi curah hujan. Hasil penelitian menunjukkan bahwa dalam periode 30 tahun terakhir di Daerah Waeapo sudah terjadi fenomena curah hujan ekstrem kering (El Nino) sebanyak delapan kali, dengan intensitas rata-rata tiga tahun sekali. Dan fenomena curah hujan ekstrem basah (La Nina) terjadi sebanyak enam kali dengan intensitas rata-rata lima tahun sekali. Berdasarkan perhitungan neraca air lahan, pada kondisi curah hujan El Nino terjadi defisit air tanah tahunan sebesar 403 mm atau 172% dari kondisi normalnya, sebaliknya pada kondisi curah hujan La Nina terjadi surplus air tanah tahunan sebesar 775 mm atau 222% dari kondisi normalnya. Ketika terjadi fenomena El Nino periode tumbuh yang tersedia hanya lima bulan (Januari s.d Mei), dan ketika terjadi fenomena La-Nina periode tumbuh berlangsung sepanjang tahun (12 bulan). \u0000Kata kunci: El Nino, La Nina, neraca air lahan, periode tumbuh tersedia, Pulau Buru","PeriodicalId":253388,"journal":{"name":"JURNAL BUDIDAYA PERTANIAN","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126084785","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":"Hubungan Pertumbuhan Varietas Sagu (Metroxylon sago Rottb) dengan Faktor Lingkungan di Desa Seget Papua Barat","authors":"B. A. Suripatty","doi":"10.30598/JBDP.2018.14.1.8","DOIUrl":"https://doi.org/10.30598/JBDP.2018.14.1.8","url":null,"abstract":"A good environment for sago plants is muddy, mineral-rich and organic material, brown groundwater and slightly acidic. Sago lives in the form of clumps, where in one clump there are various growth rates ranging from young plants to fruiting. The optimal amount of rainfall for growth between 2000-4000 mm/year, which is spread evenly throughout the year. This study aims to have inventory and to know the relationship between sago growth factors. Sago inventory results obtained 4 varieties namely Metroxylon sago Rottb var. wahna, M. sago Rottb var. wamda, M. sago Rottb var. wirere and M. sago Rottb var. wafok. The relationships between growth and environmental factors such as soil porosity, water pH, moisture, light, and vegetation produced that in general water has an influence on growth while the humidity factor for all types of places of growth i.e in the flooded areas, temporary areas and dry areas does not affect growth. \u0000Keywords: environmental factor, inventory, sago variety, Seget \u0000  \u0000ABSTRAK \u0000Lingkungan yang baik untuk tumbuhan sagu adalah daerah yang berlumpur, kaya mineral dan bahan organik, air tanah berwarna coklat dan bersifat agak asam. Sagu hidup dalam bentuk rumpun, dimana dalam satu rumpun terdapat berbagai tingkat pertumbuhan mulai dari tumbuhan muda sampai berbuah. Jumlah curah hujan yang optimal bagi pertumbuhan antara 2.000-4.000 mm/tahun, yang tersebar merata sepanjang tahun. Penelitian ini bertujuan untuk menginventarisasi dan mengetahui hubungan faktor-faktor pertumbuhan sagu. Hasil inventarisasi sagu diperoleh 4 varietas yaitu Metroxylon sago Rottb varietas wahna, M. sago Rottb varietas wamda, M. sago Rottb varietas wirere dan M. sago Rottb varietas wafok. Hubungan pertumbuhan dengan faktor lingkungan porositas tanah, pH air, kelembapan, cahaya, dan vegetasi dihasilkan bahwa secara umum air mempunyai pengaruh terhadap pertumbuhan sedangkan faktor kelembaban untuk semua tipe tempat tumbuh yakni pada daerah tergenang, daerah temporer dan daerah kering tidak mempengaruhi pertumbuhan. \u0000Kata kunci: faktor lingkungan, inventory, Seget, varietas sagu","PeriodicalId":253388,"journal":{"name":"JURNAL BUDIDAYA PERTANIAN","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116080974","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":"Keragaman dan Potensi GenKeragaman dan Potensi Genetik Ubi Jalar Lokal Pada Kondisi Partial Submergenceetik Ubi Jalar Lokal Pada Kondisi Partial Submergence","authors":"H. Hetharie, Simon H T Raharjo, A. Wattimena, R. Tomasoa, La Dahamarudin","doi":"10.30598/jbdp.2018.14.1.1","DOIUrl":"https://doi.org/10.30598/jbdp.2018.14.1.1","url":null,"abstract":"Excess ground water above normal due to high rainfall affect the growth and yields of crops. The objectives of the study were to measure the genetic diversity of local sweet potato clones, to obtain characters of vegetative and yield characters that were  responsive against of partial submergence and sweet potato clones that had highest yield components. The method of research was a one-factor experiment involving 21 sweet potato clones using a Completely Randomized Block design with 3 replication. The partial submergence in this study mean that was the lower parts of the plants submerged when the plant were 2 and 3 months old. Data were analyzed with F test, genotype and phenotype variance, and DMRT test. The results show the sweet potato clones have a wide diversities of vegetative and yield characters. Vegetative characters that were positively responsive to partial submergence were the number of green leaves, leaf area per plant, leaf area index, and stem length. Yield characters that were positively responsive to partial submergence were tuber number and tuber length. Some of the clones with the highest production potential were shown through two of the three yields indicators (tubers number, individual tuber weight and tuber weight per plant), i.e. A13, AR15, B9, BSepa-U, BR5, H1 clones and Antin 2 variety.. \u0000Keywords: excess water, genotype variance, Ipomoea batatas, Maluku, yield character \u0000  \u0000ABSTRAK \u0000Kelebihan air tanah di atas normal akibat curah hujan yang tinggi mempengaruhi pertumbuhan dan produksi tanaman. Tujuan penelitian untuk mengukur keragaman genetik klon-klon ubi jalar lokal,  serta mendapatkan karakter vegetatif dan karakter hasil yang responsif positif terhadap partial submergence dan klon ubi jalar yang mempunyai komponen hasil tertinggi. Metode penelitian berupa percobaan satu faktor yaitu 21 klon ubi jalar menggunakan rancangan acak lengkap berblok dengan pengulangan tiga kali. Partial submergence  dalam penelitian ini yaitu  bagian bawah dari tanaman terendam air pada umur tanaman 2 dan 3 bulan. Analisis data dengan uji F, ragam genotip dan fenotip, dan uji DMRT. Hasil menunjukkan bahwa klon-klon ubi jalar mempunyai  keragaman luas pada semua karakter vegetatif dan produksi. Karakter vegetatif  yang responsif positif terhadap  partial submergence yaitu jumlah daun hijau, luas daun per tanaman, indeks luas daun dan panjang batang. Karakter produksi yang responsif positif terhadap  partial submergence yaitu jumlah umbi dan panjang umbi. Beberapa klon dengan potensi produksi melalui dua dari tiga indikator produksi (jumlah umbi, bobot per umbi dan bobot umbi segar per tanaman) tertinggi yaitu  A13, A15, B9,  BSepa-U, BR5, H1, dan varietas Antin 2. \u0000Kata kunci: Ipomoea batatas, karakter hasil, Maluku, ragam genotip, terendam","PeriodicalId":253388,"journal":{"name":"JURNAL BUDIDAYA PERTANIAN","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115330114","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 Aplikasi Biostimulan Terhadap Pertumbuhan dan Produksi Tanaman Sawi (Brassica juncea L.)","authors":"Rismawaty Saban, Henry Kesaulya, J. I. Nendissa","doi":"10.30598/JBDP.2018.14.1.41","DOIUrl":"https://doi.org/10.30598/JBDP.2018.14.1.41","url":null,"abstract":"This study aimed to determine the effect of different biostimulant applications (solid and liquid) on the growth and yield of mustard plants. This study used a single factor Randomized Block Design (RBD), consisting of solid or liquid biostimulant treatment, each has twelve levels, i.e. K0 = without biostimulant, K1 = NPK 1 g per plant, solid and liquid biostimulant each consisting of 10 treatments = B1, B2, B3, B4, B5, B6, B7, B8, B9, B10. Solid biostimulant was given at 2.5 g per plant and liquid biostimulant at 10 ml per plant. The results showed that liquid biostimulant gave a significant effect on plant height, crop fresh weight, and crop dry weight; whereas solid biostimulant gave a very significant effect on entire weight, i.e. fresh weight of mustard plant, fresh root weight, and crop dry weight. The best treatment for liquid biostimulant was B1 treatment; whereas for the solid biostimulant was B7 treatment. \u0000Keywords: biostimulant, mustard, growth, yield \u0000  \u0000ABSTRAK \u0000Penelitian ini bertujuan untuk mengetahui pengaruh aplikasi biostimulan yang berbeda (biostimulan padat dan cair) terhadap pertumbuhan dan produksi tanaman sawi. Penelitian ini menggunakan rancangan acak kelompok faktor tunggal yang terdiri dari perlakuan Biostimulan (padat dan cair) yang masing-masing perlakuan terdapat dua belas taraf (P): K0 = tanpa biostimulan, K1 = NPK 1 g/tan, Biostimulan padat dan cair masing-masing terdiri dari 10 perlakuan = B1, B2, B3, B4, B5, B6, B7, B8, B9, B10. Biostimulan padat 2.5 g/tan dan biostimulan cair 10 ml/tan. Hasil penelitian menunjukkan bahwa biostimulan cair memberikan pengaruh yang nyata terhadap tinggi tanaman sawi, berat segar tanaman, dan berat kering tanaman, sedangkan biostimulan padat memberikan pengaruh yang sangat nyata terhadap semua bobot berat tanaman sawi yaitu berat segar tanaman, berat segar akar, dan berat kering tanaman. Perlakuan terbaik untuk biostimulan cair adalah perlakuan B1, sedangkan untuk biostimulan padat perlakuan yang terbaik adalah perlakuan B7. \u0000Kata kunci: biostimulan, sawi, pertumbuhan, produksi","PeriodicalId":253388,"journal":{"name":"JURNAL BUDIDAYA PERTANIAN","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128792611","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":"Aplikasi Integrasi Pupuk NPK Dengan Waktu Pemberian Pupuk Organik Cair Pada Tanaman Pakcoy (Brassica rapa L.)","authors":"Yance N Ayal, Henry Kesaulya, Francina Matulessy","doi":"10.30598/JBDP.2018.14.1.14","DOIUrl":"https://doi.org/10.30598/JBDP.2018.14.1.14","url":null,"abstract":"This research was aimed to get the optimum NPK fertilizer dosage with the time of liquid organic fertilizer application to support the growth and yield of pakcoy (Brassica rappa L.). The study used a Randomized Block Design with three replications. Observation variables included plant height, leaf number, leaf area, total plant weight, root length, root weight and total plant weight percentage. The results showed that N0 (without NPK fertilizer) was the best based on the plant height and leaf number. Liquid organic fertilizer given at 3-time applications per plant (W3) contributed significantly to leaf number at 35 days after planting and gave the highest yield of leaves, with 17,45 leaves. The treatment of NPK compound fertilizer dosage with the time of liquid organic fertilizer gave significant effects on the leaf area, total plant weight, root length, and root weight. \u0000Keywords: liquid organic fertilizer, NPK, pakcoy \u0000  \u0000ABSTRAK \u0000Penelitian ini bertujuan untuk mendapatkan dosis pupuk NPK dengan waktu plikasi pupuk organik cair yang tepat untuk menunjang pertumbuhan danp roduksi tanaman pakcoy (Brassica rappa L.). Penelitian mengunakan Rancangan Acak Kelompok dengan tiga ulangan. Peubah-peubah pengamatan meliputi tinggi tanaman, jumlah daun, luas daun, berat total tanaman, panjang akar, berat akar dan persentase berat total tanaman. Hasil penelitian menunjukkan bahwa perlakuan N0 (tanpa pupuk NPK) merupakan yang terbaik dari penelitian ini terhadap parameter tinggi tanaman dan jumlah daun. Waktu pemberian pupuk organik cair 3 kali/tanaman (perlakuan W3) memberikan kontribusi yang signifikan terhadap jumlah daun 35 hari setelah tanam dan menghasilkan daun terbanyak dengan jumlah 17,45 helai. Perlakuan dosis pupuk majemuk NPK dengan waktu pemberian pupuk organik cair memberikan pengaruh yang nyata sampai sangat nyata terhadap luas daun, berat total tanaman, panjang akar serta berat akar. \u0000Kata kunci: NPK, pakcoy, pupuk organik cair","PeriodicalId":253388,"journal":{"name":"JURNAL BUDIDAYA PERTANIAN","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133721464","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":"Prediksi Daerah Rawan Longsor Pada Kawasan Pengembangan Jalan Nasional Pulau Sanana di Maluku Utara","authors":"Pieter J Kunu, Marcus Luhukay","doi":"10.30598/jbdp.2018.14.1.47","DOIUrl":"https://doi.org/10.30598/jbdp.2018.14.1.47","url":null,"abstract":"Research has been conducted with the aim of mapping a potential landslide of soil that is alleged to be happening on a national road development area on the island of North Maluku Sanana island because in some locations excavations or cutting slope were conducted for build trails. Research was done by survey method, by analysis of land as well as the analysis of soil samples in the laboratory against some physical-chemical soil parameters to predict the potential for landslide of soil. The results showed that in the developed area of national roads, there were some points or locations with the potential landslide. However, by cutting slope of landslide the potential became greater, things which would be very threatening road users on the sections of the road that passes through the hilly and mountainous regions. The cutting slopes have been disturbing the equilibrium slope stability or lower slopes so the landslide is easy to happen. Mitigation efforts can be done by building a retaining structure at the foot of the slopes, the angle of the cutting slope made slightly sloping and in the upper part land use should be preserved and enriched with plant conservation to improve the stability of slopes. \u0000Keywords: a potential avalanche of soil, national road, slope stability \u0000  \u0000ABSTRAK \u0000Penelitian telah dilakukan dengan tujuan untuk memetakan potensi longsoran tanah yang diduga akan terjadi pada kawasan pengembangan jalan nasional di Pulau Sanana Maluku Utara karena di beberapa lokasi dilakukan penggalian atau pemotongan lereng untuk membangun jalur jalan. Penelitian dilakukan dengan metode survey dengan analisis lahan serta analisis sampel tanah di laboratorium terhadap beberapa parameter fisik-kimia tanah untuk memprediksi potensi longsoran tanah. Hasil penelitian menunjukkan bahwa pada kawasan ruas jalan nasional yang dikembangkan terdapat beberapa titik atau lokasi dengan potensi longsoran tergolong sedang. Namun dengan adanya pemotongan lereng maka potensi longsoran menjadi semakin besar, hal mana akan sangat mengancam pengguna jalan di ruas-ruas jalan yang melewati kawasan berbukit dan bergunung. Pemotongan lereng telah mengganggu keseimbangan lereng atau menurunkan stabilitas lereng sehingga longsoran mudah terjadi. Upaya mitigasi dapat dilakukan dengan membangun struktur penahan di kaki lereng, sudut pemotongan lereng dibuat landai dan penggunaan lahan di bagian atas lereng harus dipertahankan dan diperkayadengan tanaman konservasi untuk meningkatkan stabilitas lereng yang sudah terganggu. \u0000Kata kunci: jalan nasional, potensi longsoran tanah, stabilitas lereng","PeriodicalId":253388,"journal":{"name":"JURNAL BUDIDAYA PERTANIAN","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114097002","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":"Perbanyakan Mikro Colocasia esculenta (L.) Schott var. Antiquorum Melalui Penggunaan IAA","authors":"Asnad E Louw, H. Kesaulya, I. J. Lawalata","doi":"10.30598/JBDP.2018.14.1.28","DOIUrl":"https://doi.org/10.30598/JBDP.2018.14.1.28","url":null,"abstract":"An appropriate in vitro propagation medium is necessary to improve the shoot multiplication ability and seed quality in micro propagation. In the Murashige Shoog in vitro culture medium, plant growth regulator can be added as growth promoter. This study aimed to determine the best IAA concentration for in vitro culture growth of Japanese taro (satoimo). The treatment consisted of 4 IAA concentrations, i.e. I0 (0 mg / l), I1 (0.5 mg/L), I2 (1 mg/L), I3 (1.5 mg/L) in randomized block design, with 5 replicates. The results of this study showed that IAA treatment gave an effect on the time of shoot emergence, shoot number, leaf number and root number of satoimo plantlet. IAA concentration of 0.5 mg/L was the best for satoimo shoot number, whereas 1 mg/L IAA was the best concentration for shoot number, shoot height and leaf number in micropropagation of satoimo. \u0000Keywords: IAA, in vitro culture, Japanese taro, micro propagation \u0000  \u0000ABSTRAK \u0000Media perbanyakan in vitrosangat diperlukan untuk meningkatkan kemampuan multipikasi tunas maupun kualitas bibit. Media Murashige Shoog (MS)dapatditambahkanzat pengatur tumbuh sebagai pemacu pertumbuhan dalam kultur in vitro.Penelitian ini bertujuan untuk mendapatkan konsentrasi IAA terbaik bagi pertumbuhan talas jepang dalam kulturin vitro. Perlakuan terdiri dari 4 taraf konsentrasi IAA yaitu I0 (0 mg/L), I1 (0,5 mg/L), I2 (1 mg/L), I3 (1,5 mg/L) yang diulang sebanyak 5 kali dalam rancangan acak kelompok. Hasil penelitian ini menunjukan bahwa pemberian IAA berpengaruh nyata terhadap saat muncul tunas, jumlah tunas, tinggi tunas, jumlah daun dan jumlah akar satoimo. Konsentrasi IAA 0,5 mg/L merupakan konsentrasi terbaik untuk pertumbuhan akar dan saat muncul tunas talas satoimo, sedangkan konsentrasi IAA 1 mg/L merupakan konsentrasi terbaik untuk jumlah tunas, tinggi tunas dan jumlah daun satoimo. \u0000Kata kunci: kultur in vitro, talas jepang, IAA, perbanyakan","PeriodicalId":253388,"journal":{"name":"JURNAL BUDIDAYA PERTANIAN","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125622295","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 Degradasi Tanah dan Pengaruh Faktor Penggunaan Lahan Terhadap Degradasi Tanah Pada Kebun Campuran Dan Semak Belukar Di Kecamatan Kairatu Kabupaten Seram Bagian Barat Propinsi Maluku","authors":"Silwanus M. Talakua","doi":"10.30598/jbdp.2019.15.1.13","DOIUrl":"https://doi.org/10.30598/jbdp.2019.15.1.13","url":null,"abstract":"Soil degradation on scrub is higer than the mixed planting with indicators of soil degradation are pedestal, root plant exposure, rill and gully. Individually, the extent of land use, the density of upper vegetation and the density of lower vegetation have significant effect on the soil degradation at mixed plantation and scrub. Simultaneously, the extent of land use, the density of upper vegetation and the density of lower vegetation have significant effect on the soil degradation at mixed plantation and scrub. The factors that has the greatest effect on the soil degradation at mixed plantation are the extent of land use and density of lower vegetation, att the scrub, those factors are the density of upper and lower vegetation. \u0000Key words:  Soil degradation, the extent of landuse, density of upper vegetation, density of lower vegetation, mixed plantation and scrub. \u0000  \u0000ABSTRAK \u0000Besar degradasi tanah pada semak belukar lebih tinggi dibandingkan kebun campuran dengan indikator degradasi tanah adalah pedestal, akar terekspos, alur dan parit. Secara tunggal, luas penggunaan lahan, kerapatan vegetasi atas dan kerapatan vegetasi bawah berpengaruh nyata terhadap degradasi tanah pada penggunaan lahan kebun campuran dan semak belukar. Secara serempak, luas penggunaan lahan, kerapatan vegetasi atas dan kerapatan vegetasi bawah berpengaruh nyata terhadap degradasi tanah pada penggunaan lahan kebun campuran dan semak belukar. Faktor yang paling berpengaruh terhadap degradasi tanah pada kebun campuran adalah luas penggunaan lahan dan kerapatan vegetasi bawah, sedangkan pada semak belukar adalah kerapatan vegetasi atas dan kerapatan vegetasi bawah. \u0000Kata Kunci: degradasi tanah, luas penggunaan lahan, kerapatan vegetasi atas, kerapatan vegetasi bawah, kebun campuran dan semak belukar.","PeriodicalId":253388,"journal":{"name":"JURNAL BUDIDAYA PERTANIAN","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124303342","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}