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Journal of Agro Complex
Published by Universitas Diponegoro
ISSN : -     EISSN : 25974386     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Journal of Agro Complex (JOAC) is an open access, peer-reviewed journal that considers articles on all areas of agricultural sciences (Agro complex). Research areas include : plant growth and development, plant production, plant improvement, plant protection, plant ecology, plant physiology, seed production and certification, integrated farming, sustainable agriculture, agribusiness and agro industry.
Arjuna Subject : -
Articles 96 Documents
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Pengaruh sistem tanam dan pupuk organik terhadap karakter agronomi turi dan rumput benggala pada tanah salin Rokhimun Tolib; Florentina Kusmiyati; Dwi Retno Lukiwati
Journal of Agro Complex Vol 1, No 2 (2017)
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (224.181 KB) | DOI: 10.14710/joac.1.2.57-64

Abstract

Penelitian bertujuan untuk mengkaji pengaruh sistem tanam serta dosis pupuk kandang terhadap karakter agronomi turi dan rumput benggala pada tanah salin. Salinitas tanah yang digunakan termasuk sedang, dengan daya hantar listrik 4,10 dS/m. Pupuk kandang (pukan) yang digunakan berasal dari ternak sapi. Rancangan percobaan yang digunakan, rancangan acak kelompok monofaktor terdiri dari 9 perlakuan dengan 3 kali ulangan, yaitu monokultur turi tanpa pukan (M1); monokultur turi + 10 ton pukan/ha (M2); monokultur turi + 20 ton pukan/ha (M3); tumpangsari turi dan rumput benggala + 0 ton pukan/ha (M4); tumpangsari turi dan rumput benggala + 10 ton pukan/ha (M5); tumpangsari turi dan rumput benggala + 20 ton pukan/ha (M6); monokultur rumput benggala tanpa pukan (M7); monokultur rumput benggala + 10 ton pukan/ha (M8); monokultur rumput benggala + 20 ton pukan/ha (M9). Hasil penelitian menunjukkan bahwa aplikasi pupuk kandang dengan dosis 10 ton/ha mampu meningkatkan jumlah daun, kadar klorofil a, kadar klorofil total, serta produksi bahan kering turi dan rumput benggala pada tanah salin. Sistem tanam tumpangsari mampu meningkatkan efisiensi penggunaan lahan. Kata kunci : Agronomi, sistem tanam, organik, turi, rumput benggala.
Pertumbuhan dan produksi tanaman pakchoy (Brassica chinensis l.) pada dosis pupuk bioslurry dan jarak tanam yang berbeda Arini Fitri Hadiyati; Widyati Slamet; Endang Dwi Purbajanti
Journal of Agro Complex Vol 4, No 1 (2020): JOAC Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/joac.4.1.32-39

Abstract

ABSTRACT The aim of this research was to observe of bioslurry fertilizer dosage and plant spacing on growth and production of pakchoy plant. The research used Factorial Completely Randomized Design 4x2 and 3 time replication. The first factor was bioslurry fertilizer dosage (0, 3, 6, 9 ton/ha). The second factor was plant spacing (20x20 cm; 25x25 cm). Parameters observed were plant height, number of leaves, leaf area, production of fresh and dried leaves.Data were analysis of variabel and further test with Duncan’s Multiple Range Test (DMRT). The result showed that combination of bioslurry fertilizer dosage and plant spacing were significantly affect of leaf area, production of fresh and dried leaves. The bioslurry fertilizer dosage showed significant result of all parameters. Plant spacing showed significant result of leaf area, production of fresh and dried leaves. Bioslurry fertilizer dosage 9 ton/ha with plant spacing 20x20 cm and 25x25 cm increase leaf area, production of fresh and dried leaves. Bioslurry fertilizer dosage 9 ton/ha increase all parameters. Raw plant spacing increse leaf area but decrease production of fresh and dried leaves.Keywords: Pakchoy, dosage, bioslurry fertilizer, plant spacing. ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh dosis pupuk bioslurry dan jarak tanam terhadap pertumbuhan dan produksi tanaman pakchoy. Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) pola faktorial 4x2 dengan tiga kali ulangan. Faktor pertama adalah dosis pupuk bioslurry (0, 3, 6 dan 9 ton/ha). Faktor kedua adalah jarak tanam (20x20 cm, 25x25 cm). Parameter yang diamati meliputi tinggi tanaman, jumlah daun, luas daun, produksi segar dan kering tajuk. Data dianalisis ragam, kemudian apabila terdapat pengaruh nyata dilanjutkan dengan uji DMRT (Duncan Multiple Range Test). Hasil penelitian menunjukkan bahwa terdapat pengaruh interaksi yang nyata terhadap luas daun, produksi segar dan kering tajuk. Dosis pupuk berpengaruh nyata terhadap semua parameter penelitian. Jarak tanam berpengaruh nyata terhadap parameter luas daun, produksi segar dan kering tajuk. Dosis pupuk bioslurry 9 ton/ha dengan jarak tanam 20x20 cm dan 25x25cm mampu meningkatkan luas daun, produksi segar dan kering tajuk. Dosis pupuk bioslurry 9 ton/ha meningkatkan semua parameter penelitian. Jarak tanam yang semakin lebar mampu meningkatkan luas daun tetapi menurunkan produksi segar dan kering tajuk.Kata kunci: Pakchoy, dosis, pupuk bioslurry, jarak tanam
Heterosis, heterobeltiosis, dan aksi gen generasi F1 hasil persilangan kedelai (Glycine max (l.) Merrill) varietas Devon dan Dering Dwi Sulastri; Florentina Kusmiyati; Karno Karno
Journal of Agro Complex Vol 4, No 1 (2020): JOAC Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/joac.4.1.1-6

Abstract

ABSTRACT The objective of this research was to examine the value of heterosis, heterobeltiosis, and the degree of dominance of F1 generation as a result of crossing soybeans between Devon and Dering varieties. This research was conducted on January 2018 - April 2018 at the Plastic House of Randublatung District, Blora Regency and the Laboratory of Plant Breeding Physiology, Faculty of Animal Husbandry and Agriculture, Diponegoro University, Semarang. This study uses a experimental design single plant  without replication with the randomization method Augmented design. As many as 16 seeds were planted from the Devon x Dering variety, 20 seeds from the Dering x Devon variety, 12 seeds from the Dering variety and 12 seeds from Devon varieties. The results showed that the heterosis and heterobeltiosis values were positive for Devon x Dering crossing occurred in all characters, while Devon x Dering crossing only occurred in the character of the number of seeds and the age of harvest. Positive dominant gene over action occurs in all the characters from Devon x Dering and the character of harvest age at the Dering x Devon crossing.Keywords: dominant, heterosis, heterobeltiosis, soybeans ABSTRAK Penelitian bertujuan untuk mengkaji nilai heterosis, heterobeltiosis, dan derajat dominansi generasi F1 hasil persilangan kedelai antara varietas Devon dengan Dering. Penelitian ini dilakukan pada tanggal Januari 2018 – April 2018 di Rumah Plastik Kecamatan Randublatung, Kabupaten Blora dan Laboratorium Fisiologi dan Pemuliaan Tanaman, Fakultas Peternakan dan Pertanian, Universitas Diponegoro, Semarang.Penelitianinimenggunakan rancangan percobaan single plant tanpa ulangan dengan metode pengacakan Augmented design. Kedelai yang ditanam sebanyak 16 benih hasil persilangan varietas Devon x Dering, 20 benih hasil persilangan varietas Dering x Devon, 12 benih varietas Dering dan 12 benih varietas Devon. Hasil penelitian menunjukkan bahwa nilai heterosis dan heterobeltiosis positif persilangan Devon x Dering terjadi pada semua karakter, sedangkan persilangan Dering x Devon hanya terjadi pada karakter jumlah biji dan umur panen. Aksi gen over dominan positif terjadi pada semua karakter hasil persilangan Devon x Dering dan karakter umur panen pada hasil persilangan Dering x Devon.Kata kunci: dominan, heterosis, heterobeltiosis, kedelai 
Pengaruh solarisasi tanah dan pemberian dosis Trichoderma harzianum dalam pengendalian penyakit layu fusarium pada cabai (Capsicum annum L.) Varida Risma Wati; Yafizham Yafizham; Eny Fuskhah
Journal of Agro Complex Vol 4, No 1 (2020): JOAC Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/joac.4.1.40-49

Abstract

ABSTRACT This research was conducted to determine the effectiveness of the application of soil solarization and the dosage of Trichoderma harzianum in controlling fusarium wilt. This research was arranged using factorial CRD 2 x 4 treatments and 4 replications. The first factor is soil solarization treatment consisting of S0 = without solarization and S1 = solarization for 4 weeks, the second factor is dose of Trichoderma harzianum which consists of A0 = 0 g / l, A1 = 25 g / l, A2 = 50 g / l and A3 = 75 g / l. Data were analysed using descriptive statistic and analysis of variance (ANOVA) and if there was significant it was followed by DMRT (α = 5%). The results showed that solarization can increase soil temperature by 20.98% or 8.5oC, and there was an interaction between solarization and the dose of Trichoderma harzianum to reduce the percentage of disease incidence and disease intensity of fusarium wilt. Addition of doses Trichoderma harzianum 50 g / l can increase chili production by 63.56%. Soil solarization and dose of T. harzianum 50 g / l are effective in controlling fusarium wilt and able to increase chili production.Keywords : Fusarium oxysporum, soil solarization, Trichoderma harzianum, chili. ABSTRAK Tujuan dari penelitian ini adalah untuk mengetahui keefektifan penerapan solarisasi tanah dan dosis Trichoderma harzianum dalam mengendalikan penyakit layu fusarium. Penelitian ini disusun menggunakan RAL faktorial 2 x 4 perlakuan dan 4 ulangan. Faktor pertama adalah perlakuan solarisasi tanah yang terdiri dari S0 = Tanpa solarisasi dan S1 = Solarisasi selama 4 minggu, faktor kedua adalah dosis Trichoderma harzianum yang terdiri dari A0 = 0 g/l, A2 = 25 g/l, A3 = 50 g/l dan A4 = 75 g/l. Analisis data penelitian dilakukan secara deskriptif dan analisis ragam (ANOVA), apabila berpengaruh nyata dilanjutkan dengan uji DMRT taraf α =5%. Hasil penelitian menunjukkan bahwa solarisasi dapat meningkatkan suhu tanah sebesar 20,98% atau 8,5oC, dan terdapat interaksi antara solarisasi dengan dosis T. harzianum terhadap penurunan persentase kejadian penyakit dan intensitas serangan penyakit layu fusarium. Penambahan dosis Trichoderma harzianum 50 g/l sudah dapat meningkatkan produksi cabai sebesar 63,56%. Solarisasi tanah dan dosis T. harzianum 50 g/l efektif dalam mengendalikan penyakit layu fusarium dan meningkatkan produksi cabai.Kata kunci : Fusarium oxysporum, solarisasi tanah, Trichoderma harzianum, cabai.
Pertumbuhan dan produksi bawang merah (Allium ascolonicum L) akibat pemberian pupuk kandang sapi dan pupuk hayati Anisa Indriyana; Yafizham Yafizham; Sumarsono Sumarsono
Journal of Agro Complex Vol 4, No 1 (2020): JOAC Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/joac.4.1.7-15

Abstract

ABSTRACT The objective of this research was to evaluate the effect of cow manure and biological fertilizer on the growth and production of onion. This research was conducted on February 7 to April 18 2018 in Crop House, Bekutuk, Blora, and Laboratory of Ecology and Production, Faculty of Animal Science and Agriculture, Diponegoro University. The reasech design used was factorial design with Randomized Complete Design. The first factor was cow manure 0 tons/ha, 10 tons/ha and 20 tons/ha. The second factor was biological fertilizer 0 ml/l, 10 ml/l and 20 ml/l. Each treatment was repeated three times. Parameters observed were plant height, number of leaves, number of tubers, fresh weight of plant, dry weight of drying. The data were processed by Analysis of Variance (ANOVA), and continued by test of Honestly Significant Different (HSD).The results showed that the treatment of cow manure significantly (p <0.05) increased every dose of 10 tons/ha on plant height and number of leaves. Treatment of biological fertilizers were significant (p <0.05) to the number of tubers increased each dose of 10 ml/l at each dose of manure.Keywords: Onion, cow manure, biological fertilizer. ABSTRAK Penelitian bertujuan untuk mengkaji pengaruh pupuk kandang sapi dan pupuk hayati terhadap pertumbuhan dan produksi bawang merah. Penelitian ini dilakukan pada tanggal 7 Februari- 18 April 2018 di Rumah Plastik, Bekutuk, Blora, serta Laboratorium Ekologi dan Produksi Tanaman Universitas Diponegoro.Penelitian menggunakan percobaan faktorial dengan Rancangan Acak Lengkap. Faktor pertama adalah pupuk kandang sapi 0 ton/ha, 10 ton/ha dan 20 ton/ha. Faktor kedua adalah pupuk hayati 0 ml/l, 10 ml/l dan 20 ml/l. Masing- masing kombinasi perlakuan di ulang tiga kali. Parameter yang diamati adalah tinggi tanaman, jumlah daun, jumlah umbi, berat segar tanaman, berat kering jemur. Data diolah dengan analisis ragam (uji F), dan dilanjutkan dengan uji Beda Nyata Jujur (BNJ). Hasil penelitian menunjukkan bahwa perlakuan pupuk kandang sapi berpengaruh nyata (p<0,05) meningkat setiap dosis 10 ton/ha terhadap tinggi tanaman dan jumlah daun. Perlakuan pupuk hayati berpengaruh nyata (p<0,05) terhadap jumlah umbi meningkat setiap dosis 10 ml/l pada setiap dosis pupuk kandang.Kata Kunci : Bawang merah, pupuk kandang sapi, pupuk hayati.  
Respon pertumbuhan dan hasil cabai rawit (Capsicum frustescens l.) akibat inokulasi cendawan mikoriza arbuskular dan pemupukan fosfat Amalia Ramadhina Ghaisani; Dwi Retno Lukiwati; I Mansur
Journal of Agro Complex Vol 4, No 1 (2020): JOAC Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/joac.4.1.50-59

Abstract

ABSTRACT This research aimed to identify the impact of various species of arbuscular mycorrhiza inoculation and various phosphate fertilizer and their interaction on growth and yield of chili (Capsicum frustescens L.). The research used factorial experiment 4x4 with complete randomized design and consisted of 3 replication. Mycorrhiza factor consisted of M0: without mycorrhiza, M1: Glomus agregatum 20 g/pot, M2: Acaulospora sp 20 g/pot dan M3: Glomus agregatum 10 g/pot ­+ Acaulosporasp 10 g/pot. Phosphate fertilizer factor consisted of P0: without phosphate fertilizer, P1: TSP 125 kg P2O5 /ha, P2: rock phosphate (RP) 125 kg P2O5/ha dan P3: guano 125 kg P2O5/ha. The research variables measured were plant height, number of leaves, number of branches, yield of chili and dry shoot weight. Data are processed by Analysis of Variance and continued by Duncan’s Multiple Range Test (DMRT). The result showed that G.agregatum + Acaulospora sp inoculation can increase number of leaves, meanwhile G.agregatum + Acaulospora sp, G.agregatum and Acaulospora sp inoculation can increase number of branches and yield of chili. TSP fertilizer can increase number of branches, meanwhile TSP, RP and guano fertilizer can increase plant height, number of leaves, yield of chili, dry shoot weight.Keywords : Capsicum frustescens, arbuscular mycorrhiza, TSP, rock phosphate, guano ABSTRAK Penelitian bertujuan untuk mengetahui pengaruh spesies CMA dan jenis pupuk fosfat yang berbeda, serta interaksinya terhadap pertumbuhan dan produksi cabai rawit. Penelitian menggunakan percobaan faktorial 4x4 dengan Rancangan Acak Lengkap (RAL) yang terdiri dari 3 ulangan. Faktor pertama adalah spesies inokulum CMA, yaitu M0: tanpa mikoriza, M1: Glomus agregatum 20 g/pot, M2: Acaulospora sp 20 g/pot dan M3: Glomus agregatum 10 g/pot ­+ Acaulosporasp 10 g/pot. Faktor kedua adalah jenis pupuk fosfat, yaitu P0: tanpa pupuk fosfat, P1: TSP 125 kg P2O5 /ha, P2: batuan fosfat (BP) 125 kg P2O5/ha dan P3: guano 125 kg P2O5/ha. Parameter penelitian adalah tinggi tanaman, jumlah daun, jumlah cabang, jumlah cabai dan berat kering tajuk. Data diolah dengan analisis ragam (uji F) dan dilanjutkan dengan uji DMRT. Hasil penelitian menunjukkan bahwa inokulasi G.agregatum + Acaulospora sp dapat meningkatkan jumlah daun. Inokulasi G.agregatum + Acaulospora sp, G.agregatum maupun Acaulospora sp dapat meningkatkan jumlah cabang dan jumlah cabai. Pemupukan TSP dapat meningkatkan jumlah cabang. Pemupukan TSP, BP maupun guano dapat meningkatkan tinggi tanaman, jumlah daun, jumlah cabai dan berat kering tajuk.Kata kunci : Capsicum frustescens, cendawan mikoriza arbuskular, TSP, batuan fosfat, guano 
Produksi dan nutrisi kedelai dengan inokulasi ganda (cendawan mikoriza arbuskular + Bradyrhizobium japonicum) dan pemupukan fosfat Artha Rizki Anggarani; Dwi Retno Lukiwati; D Wulandari
Journal of Agro Complex Vol 4, No 1 (2020): JOAC Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/joac.4.1.16-22

Abstract

ABSTRACT The use of rock phosphate with mycorrhizal arbuscular fungi and rhizobium inoculation can be an alternative source to replace SP-36 role to increase soybean production. The objective of the research was to evaluate the effect of dual inoculation (Mycorrhizal Arbuscular Fungi+ Bradyrhizobium japonicum) and phosphate fertilization on dry weight, N and P straw concentration of soybean. The study used monofactor completely randomized design with five repliactions of treatments T0 (control), T1 (RP fertilizer), T2 (SP-36 fertilizer), T3 (mycorrhizalinoculation), T4 (B. japonicuminoculation), T5 (mycorrhizal+ RP), T6 (mycorrhizal + SP-36), T7 (B. japonicum + RP), T8 (B. japonicum + SP-36), T9 (dual inoculation), T10 (dual inoculation + RP), T11 (dual inoculation + SP-36). Parameters measured were seed weight, dry weight, N and P concentration of soybean straw. Data were analyzed by anova and DMRT at α = 5%. The results showed that T10 was non significant different on seed weight with T2. The T10 was higher in N and P straw concentration compared to T2 respectively. The use of RP with single mycorrhizal or double inculation could be recommended source of P to replace SP-36.Keywords: Dry weight, mycorrhiza, rhizobium, rock phosphate, soybean ABSTRAK Penggunaan batuan fosfat (BP) dengan inokulasi cendawan mikoriza arbuskular (CMA) dan rhizobium diharapkan mampu menggantikan peran SP-36 untuk meningkatkan produksi kedelai. Penelitian bertujuan untuk mengkaji pengaruh inokulasi ganda (Cendawan Mikoriza Arbuskular+ Bradyrhizobium japonicum) dan pemupukan fosfat terhadap produksi dan nutrisi kedelai. Penelitian menggunakan Rancangan Acak Lengkap (RAL) monofaktor lima ulangan dengan perlakuan T0 (kontrol), T1 (pupuk BP), T2 (pupuk SP-36), T3 (inokulasi CMA), T4 (inokulasi B. japonicum), T5 (CMA + BP), T6 (CMA + SP-36), T7 (B. japonicum + BP), T8 (B. japonicum + SP-36), T9 (inokulasi ganda), T10 (inokulasi ganda + BP), T11 (inokulasi ganda + SP-36). Parameter yang diamati adalah berat biji, berat kering jerami, kadar N dan P jerami kedelai. Data dianalisis ragam dan uji lanjut Duncan’s Multiple Range Test (DMRT) pada taraf α = 5%. Hasil biji dan berat kering jerami T10 tidak berbeda nyata terhadapT2. Perlakuan T10 menghasilkan kadar N dan P jerami nyata lebih tinggi dibanding perlakuan T2. Penggunaan BP dengan inokulasi CMA tunggal maupun ganda dapat menjadi alternatif sumber P yang lebih ramah lingkungan dibanding SP-36.Kata Kunci: Berat kering, batuan fosfat, kedelai, mikoriza, rhizobium 
Inokulasi berbagai spesies cendawan mikoriza arbuskular (CMA) terhadap pertumbuhan dan kemampuan akumulasi logam Pb pada tanaman marigold (Tagetes erecta L.) Fageta Dwi Safitri; Dwi Retno Lukiwati; I Mansur
Journal of Agro Complex Vol 4, No 1 (2020): JOAC Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/joac.4.1.60-68

Abstract

ABSTRACTThis research aimed to indentify the impact of single species (G. fasciculatum, Acaulospora sp., G. etunicatum), double species, and multi-species AMF inoculation for plant growth and Pb accumulation ability of marigold plant. The research used monofactor randomized complete design with eight treatments and three replications.The treatments were M0. Control, M1. G. fasciculatum, M2. Acaulospora sp., M3. G. etunicatum, M4. G. fasciculatum + Acaulospora sp., M5. G. fasciculatum + G. etunicatum, M6. Acaulospora sp. + G. etunicatum, dan M7. G. fasciculatum + Acaulospora sp. + G. etunicatum. The parameters observed were plant height, number of branches, BCF, TF, and final concentration of Pb. Data analyzed using anova and followed by DMRT at α = 5%. The result indicated that AMF inoculation had significantly impact to the plant growth of marigold, BCF value, and Pb final concentration, but had no impact to the TF value. Inoculation of G. fasciculatum(M1) showed the highest plant growth of marigold. Inoculation of G. fasciculatum + Acaulospora sp. + G. Etunicatum(M7)showed the highest ability of Pb accumulation (BCF) and the lowest Pb final concentration in growing media. Based on BCF and TF values, the mechanism of Pb accumulation by marigold is phytoextraction.Keywords: Marigold, Pb, G. fasciculatum, Acaulospora sp., G. etunicatum. ABSTRAK Penelitian ini bertujuan untuk mengkaji pengaruh inokulasi CMA tunggal (G. fasciculatum, Acaulospora sp., G. etunicatum), ganda, dan multi-spesies terhadap pertumbuhan tanaman dan kemampuan akumulasi Pb pada marigold. Penelitian dilaksanakan menggunakan Rancangan Acak Lengkap (RAL) monofaktor dengan delapan perlakuan dan tiga ulangan. Perlakuan yang diberikan adalah M0. Kontrol, M1. G. fasciculatum, M2. Acaulospora sp., M3. G. etunicatum, M4. G. fasciculatum + Acaulospora sp., M5. G. fasciculatum + G. etunicatum, M6. Acaulospora sp. + G. etunicatum, dan M7. G. fasciculatum + Acaulospora sp. + G. etunicatum. Parameter penelitian meliputi tinggi tanaman, jumlah cabang, TF, BCF, dan konsentrasi Pb akhir media tanam. Data dianalisis ragam dan dilanjutkan uji jarak berganda Duncan pada taraf α = 5%. Hasil penelitian menunjukkan inokulasi berbagai spesies CMA berpengaruh terhadap pertumbuhan tanaman, nilai BCF, dan kadar Pb akhir media tanam, tetapi tidak berpengaruh terhadap nilai TF. Inokulasi G. fasciculatum(M1)memberikan pertumbuhan tanaman marigold tertinggi. InokulasiG. fasciculatum + Acaulospora sp, dan G. etunicatum(M7) menunjukkan kemampuan akumulasi Pb (BCF) tertinggi dan kadar Pb akhir media tanam terendah. Berdasarkan nilai BCF dan TF, mekanisme tanaman marigold dalam mengakumulasi logam Pb adalah fitoekstraksi.Kata kunci : Marigold, Pb, G. fasciculatum, Acaulospora sp., G. etunicatum. 
Pertumbuhan dan hasil tanaman cabai keriting (Capsicum annum l.) pada konsentrasi dan lama perendaman giberelin yang berbeda Pasuryan Dewi Ulya; Widyati Slamet; Karno Karno
Journal of Agro Complex Vol 4, No 1 (2020): JOAC Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/joac.4.1.23-31

Abstract

ABSTRACTThe object of this research was to study the effects of different concentrations and lengths of gibberellin immersion on growth and yield of pepper plants. The study was conducted in January-July 2018 at the Biology Laboratory of FMIPA UNNES, the Laboratory of Plants Ecology and Production, FPP UNDIP, and the plastic house on Jalan Tlogomulyo Semarang. The study was arranged with factorial completely randomized design with the first factor was the concentration of giberelin and the second factor was the duration of soaking. The results showed that the treatment of giberelin concentrations had a significant effect on the vigor index, plant height, number of leaves, age of flowering, fruit length, and fruit weight per plant. The treatment of soaking time significantly affected plant height, number of leaves, fruit length, and fruit weight per plant. The optimum Giberelin to increase germination, growth, and yield of chili plants was seed immersion using 300 ppm giberelin with 30 minutes soaking time.Keywords: chili, gibberellins, concentration,soaking time. ABSTRAK Penelitian bertujuan untuk mengkaji pengaruh berbagai konsentrasi dan lama perendaman giberelin yang berbeda terhadap pertumbuhan dan hasil tanaman cabai. Penelitian dilakukan pada bulan Januari-Juli 2018 di Laboratorium Biologi FMIPA UNNES, Laboratorium Ekologi dan Produksi Tanaman FPP UNDIP, dan rumah plastik Jalan Tlogomulyo Semarang. Penelitian disusun dengan rancangan acak lengkap faktorial dengan faktor pertama adalah konsentrasi giberelin dan faktor kedua adalah lama perendaman. Hasil penelitian menunjukkan bahwa perlakuan konsentrasi giberelin berpengaruh nyata terhadap vigor indeks, tinggi tanaman, jumlah daun, umur berbunga, panjang buah, dan bobot buah per tanaman. Perlakuan lama perendaman berpengaruh nyata terhadap tinggi tanaman, jumlah daun, panjang buah, dan bobot buah per tanaman.Giberelin yang optimum untuk meningkatkan perkecambahan, pertumbuhan, dan hasil tanaman cabai adalah perendaman benih menggunakan giberelin 300 ppm dengan lama perendaman 30 menit.Kata kunci: cabai, giberelin, konsentrasi, lama perendaman 
Aplikasi silika dan penerapan cekaman kekeringan terkendali dalam upaya peningkatan produksi dan mutu simplisia binahong (Anredera cordifolia) Jeni Laras Utami; Budi Adi Kristanto; Karno Karno
Journal of Agro Complex Vol 4, No 1 (2020): JOAC Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/joac.4.1.69-78

Abstract

ABSTRACT The purpose of this research was to examine the application of silica in the cultivation of controlled drought stress to obtion simplicia with high flavonoid content. The research was arranged in a completely randomized design with 4x2 factorial with 4 replications. The first factor was drought stress duration consisted of watering every 2 days (controls), 6, 10, and 14 days before harvest. The second factor was the application of silica consisted of without silica (control) and the application of silica with a dose of 150 kg SiO2/Ha. The data were analyzed by variance analysis and continued by Duncan’s Multiple Range Test. The result of the study showed that the aplication of silica increased plant height, number of leaves, fresh weight and dry weight production of simplicia, and flavonoid content. Application of drought stress with a duration of up to 8 days before the simplicia harvested was not reduced plant height, number of leaves, production of fresh weight and dry weight of simplicia, but increased flavonoid content. Application of silica increased the number of leaves and the dry weight of simplicia in the application of drought stress to a duration of zero, 4, and 8 days. The application of drought stress with a duration of 8 days before harvested and silica application increased flavonoid content without reducting the production of dry weight of simplicia.Keywords : binahong, drought stress, flavonoids, silica ABSTRAK Penelitian ini bertujuan untuk mengkaji aplikasi silika pada budidaya tanaman binahong dengan penerapan cekaman kekeringan terkendali untuk memperoleh simplisia dengan kandungan flavonoid tinggi. Penelitian menggunakan rancangan percobaan acak lengkap faktorial 4x2 dengan 4 ulangan. Faktor pertama durasi cekaman kekeringan terdiri dari penyiraman 2 hari sekali (kontrol), 6, 10, dan 14 hari sebelum simplisia dipanen. Faktor kedua aplikasi silika terdiri dari tanpa aplikasi silika (kontrol) dan aplikasi silika dosis 1500 kg SiO2/Ha. Analisis ragam dilakukan dengan uji F dan uji lanjut Duncan Multiple Range Test (DMRT) pada taraf 5%. Hasil penelitian dapat menunjukkan bahwa aplikasi silika meningkatkan tinggi tanaman, jumlah daun, produksi berat segar dan berat kering simplisiaserta kandungan flavonoid simplisia binahong.Penerapan cekaman kekeringan dengan durasi sampai 8 hari sebelum simplisia dipanen tidak menurunkan tinggi tanaman, jumlah daun, produksi berat segar dan berat kering simplisia, tetapi meningkatkan kandungan flavonoid simplisia. Aplikasi silika meningkatkan jumlah daun dan berat kering simplisia pada penerapan cekaman kekeringan sampai durasi nol, 4 dan 8 hari. Penerapan cekaman kekeringan dengan durasi 8 hari sebelum simplisia dipanen dan aplikasi silika meningkatkan kandungan flavonoid simplisia binahong tanpa menurunkan produksi berat kering simplisia.Kata kunci : binahong, cekaman kekeringan, flavonoid, silika 

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