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Journal of Agro Complex
Published by Universitas Diponegoro
ISSN : -     EISSN : 25974386     DOI : -
Core Subject : Agriculture,
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
Pengendalian penyakit hawar (lateblight) pada Kentang (Solanum tuberosum L.) melalui penerapan solarisasi tanah dan aplikasi agen hayati Trichoderma harzianum Eirene Brugman; Endang Dwi Purbajanti; Eny Fuskhah
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 (193.775 KB) | DOI: 10.14710/joac.1.2.31-38

Abstract

The purpose of the research was to assess the effectiveness of soil solarization and biological agent Trichoderma harzianum application in controlling lateblight disease caused by Phytophthora infestans on potato. The experiment was assigned in a split plot design with soil solarization as main plot and the density of Trichoderma harzianum as sub-plot. Soil solarization treatment consisted of solarization (A1) and non-solarization (B1). Density of Trichoderma harzianum used is B1(control)= 0g, B2 = 10g (107 cfu/l), B3 = 20g (2 x 108 cfu/l), B4 = 30g (3 x 108 cfu/l) and B5 = 40 g (4 x 108 cfu/l). Soil solarization treatment is carried out by using transparent polyethylene sheets with a thickness of 45 µm. Parameters measured were soil temperature, intensity level of pathogen attack, the rate of infection and total yield. Data were subjected to ANOVA and followed by LSD test. Soil solarization for 4 weeks increase the soil temperature by 7,6oC and significantly increase the production of potato by 14.28%. Application of biological agent Trichoderma harzianum on level B4 30g (3 x 108 cfu /L) gives the best results in reducing the the intensity level of pathogen attack by 69.13% and the rate of disease infection into 1,012 unit/day. The results of this research may provide benefical information in the future for plant protection activities.   Keywords : P.infestans, Trichoderma harzianum, soil solarization, potato
Karakteristik morfologi dan sitologi tanaman Sutra Bombay (Portulaca grandiflora Hook) hasil poliploidisasi dengan kolkisin pada berbagai konsentrasi dan frekuensi aplikasi Betty Perdana Sari; Karno Karno; Syaiful Anwar
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 (2154.457 KB) | DOI: 10.14710/joac.1.2.39-48

Abstract

Moss Rose (Portulaca grandiflora Hook) is one of the ornamental plants and medicinal plants. The purpose of this research was to evaluate cytological and morphological responses of Moss Rose (Portulaca grandiflora) with colcichine treatment. Colcichine treatment was done with drop method technique in different concentrations and different frequency of application. This research used Completely Randomized Design in 4x3 factorial arrangement and used descriptive analysis to compare diploid plant and tetraploid plant characters. The first factor was variation of cholcichine concentration which were K0 (0%), K1 (0.1%), K2 (0.3%), and K3 (0.6%). The second factor was variation of application frequency which were A1 (2 drop per day for a day), A2 (2 drop per day for 2 days), and A3 (2 drop per day for 3 days). The observed parameters were shoot response by colcichine treatment, number of chromosomes, length and width of stomata, stomata density, stem diameter, flower diameter, plant high, fresh weight, number of branches, and number of leaves. The result showed that Moss Rose’s shoot was intolerant with colcichine treatment in high concentration and long time application. The tetraploid plants was randomly produced by a number of treatment which were 0.1% colcichine 2 drops for 3 days, 0.3% colcichine 2 drops for 2 days, 0.6% colcichine 2 drops for 2 days, and 0.6% colcichine 2 drops for 3 days. The shoot’s growth was inhibited. The induced of tetraploid plant in Moss Rose was accompanied by double chromosome number as 2n=4x=36, larger stomata (length and width), lower stomata density, and higher morphological characters. Moss Rose (Portulaca grandiflora Hook) is one of the ornamental plants and medicinal plants. The purpose of this research was to evaluate cytological and morphological responses of Moss Rose (Portulaca grandiflora) with colcichine treatment. Colcichine treatment was done with drop method technique in different concentrations and different frequency of application. This research used Completely Randomized Design in 4x3 factorial arrangement and used descriptive analysis to compare diploid plant and tetraploid plant characters. The first factor was variation of cholcichine concentration which were K0 (0%), K1 (0.1%), K2 (0.3%), and K3 (0.6%). The second factor was variation of application frequency which were A1 (2 drop per day for a day), A2 (2 drop per day for 2 days), and A3 (2 drop per day for 3 days). The observed parameters were shoot response by colcichine treatment, number of chromosomes, length and width of stomata, stomata density, stem diameter, flower diameter, plant high, fresh weight, number of branches, and number of leaves. The result showed that Moss Rose’s shoot was intolerant with colcichine treatment in high concentration and long time application. The tetraploid plants was randomly produced by a number of treatment which were 0.1% colcichine 2 drops for 3 days, 0.3% colcichine 2 drops for 2 days, 0.6% colcichine 2 drops for 2 days, and 0.6% colcichine 2 drops for 3 days. The shoot’s growth was inhibited. The induced of tetraploid plant in Moss Rose was accompanied by double chromosome number as 2n=4x=36, larger stomata (length and width), lower stomata density, and higher morphological characters. 
Pertumbuhan dan Produksi Okra (Abelmoschus esculentus L.) pada Level Pemupukan dan Jarak Tanam yang Berbeda Jessica Raditya; Endang Dwi Purbajanti; Widyati Slamet
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 (162.812 KB) | DOI: 10.14710/joac.1.2.49-56

Abstract

This research aimed to study the growth and yield of Okra at different nitrogen fertilizer levels and plant spacing. The experiment was assigned in a completely randomized factorial design with plant spacing (50x50 and 50x75 cm) as the first factor and nitrogen fertilizer level (0, 50, 100, 150 kg N/ha) as the second factor. Each treatments was repeated three times. Parameters measured were stem diameter, number of leaves, number of fruits per plot, and weight of fruits per plot. Data were subjected to ANOVA and followed by Duncan’s Multiple Range Test (DMRT). The result showed that adding 50 kg N/ha increased stem diameter and number of leaves. The treatment of 50x50 cm spacing and 150 kg N/ha dose had the highest number of fruits per plot and weight of fruits per plot, and significantly different with 0 kg N/ha dose treatment in all parameters.
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 Okra (Abelmoschus esculentus) dengan berbagai pemupukan organik diperkaya batuan fosfat Imam Pranata; Dwi Retno Lukiwati; Widyati Slamet
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 (166.095 KB) | DOI: 10.14710/joac.1.2.65-71

Abstract

Penelitian bertujuan untuk mengetahui pengaruh pemupukan organik diperkaya batuan fosfat terhadap pertumbuhan dan produksi okra. Penelitian menggunakan rancangan acak kelompok monofaktor dengan perlakuan pupuk T1. Batuan fosfat (BP), T2. Kompos azolla pinnata, T3. Pupuk kandang (pukan) sapi, T4. Pukan kambing, T5. Pukan ayam, T6. Kompos Azolla pinnata+BP, T7. Pukan sapi+BP, T8. Pukan kambing+BP, T9. Pukan ayam+BP, diulang sebanyak 3 kali. Parameter yang diamati tinggi tanaman, jumlah daun, jumlah buah, berat segar buah dan produksi bahan kering. Data dianalisis ragam dan uji lanjut dengan Duncan’s Multiple Range Test (DMRT). Hasil penelitian menunjukkan bahwa perlakuan pukan ayam diperkaya BP menghasilkan tinggi tanaman 154,00 cm dan jumlah daun 22,56 helai lebih tinggi dibanding perlakuan lainnya. Perlakuan kompos azolla, pukan sapi, kambing, dan ayam diperkaya BP menghasilkan berat buah segar lebih tinggi dibanding kompos dan pukan tanpa diperkaya BP. Perlakuan kompos dan pukan diperkaya BP maupun tidak, menghasilkan jumlah buah yang tidak berbeda nyata. Pukan kambing+BP dan pukan ayam+BP menghasilkan bahan kering masing-masing 107,79 dan 105,53 g nyata lebih tinggi dibanding perlakuan lainnya. Perlakuan batuan fosfat tunggal nyata lebih rendah untuk semua parameter dibanding perlakuan lainnya.
Pengaruh pemberian pupuk anorganik dan organik diperkaya N, P organik terhadap serapan hara tanaman Selada (Lactuca sativa. L) Reyzhadi Neoriky; Dwi Retno Lukiwati; Florentina Kusmiyati
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 (145.624 KB) | DOI: 10.14710/joac.1.2.72-77

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pupuk anorganik dan pupuk organik diperkaya N, P organik terhadap penyerapan unsur hara tanaman selada. Penelitian ini menggunakan RAL monofaktor yang terdiri dari 9 perlakuan dengan 3 ulangan. Perlakuan pupuk yaitu urea (T1), TSP (T2), urea + TSP (T4), Pupuk kandang (pukan) (T4), Pukan + gamal (T5), Pupuk kandang + BP (T6), pukan + guano(T7), Pukan + BP + gamal (T8), dan pukan + guano + gamal (T9). Perlakuan diulang sebanyak 3 kali. Parameter yang diamati adalah berat kering, rasio tajuk akar, serapan nitrogen, dan serapan fosfor. Data analisis ragam dilanjutkan uji duncan menunjukan pupuk organik mampu meningkatkan separan hara tanaman setara pupuk anorganik. Perlakuan yang diberikan pada parameter rasio tajuk akar tertinggi didapat pada perlakuan T5. Sedangkan, parameter berat kering, serapan hara N dan P tertinggi didapat pada perlakuan T8. Pemberian perlakuan pukan, BP, dan gamal memberikan hasil terbaik terhadap penyerapan unsur haraKata kunci : selada, anorganik, organik, nitrogen, fosfor
Aplikasi silika dan NAA terhadap pertumbuhan Anggrek Bulan (Phalaenopsis amabilis l.) pada tahap aklimatisasi Ziadatul Choirum Nikmah; Widyati Slamet; Budi Adi Kristanto
Journal of Agro Complex Vol 1, No 3 (2017)
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (48.461 KB) | DOI: 10.14710/joac.1.3.101-110

Abstract

The purpose of the research was to study the influence silica and concentration of NAA for moon orchid (Phalaenopsis amabilis L.) growth in acclimatization. The experiment was assigned in completely randomized factorial design with the first factor was silica (non silika and with silica) and the second factor was NAA concentrations (0, 50, 100, and 150 ppm). Each treatments was repeated three times. Parameters measured were the percentage of plant life, number of leaves,  length of leaf,  width of leaf, number of roots, length of root and fresh weight of plants. Data were subjected to ANOVA and followed by Duncan Multiple Range Test. The result showed that aplication silica increased fresh weight of plants. Application of NAA concentrations (50, 100, and 150 ppm) decreased percentage of plant life, leaght of leaf, and fresh weight of plants. Interaction of silica and NAA concentrations showed did not significantly effect. Keyword : Moon orchid, silica, NAA, aclimatization
Pelapisan benih melon (Cucumis melo L.) dengan ekstrak kulit jeruk untuk mempertahankan mutu fisiologis benih selama penyimpanan Nurul Anisa; Florentina Kusmiyati; Karno Karno
Journal of Agro Complex Vol 1, No 3 (2017)
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (85.073 KB) | DOI: 10.14710/joac.1.3.111-119

Abstract

The objective of this research was to study the effectiveness of orange peel extract as seed coating to mantain physiological quality of melon seed during 12 weeks storage. This research was conducted in Laboratory of plant physiology and breeding UNDIP, from December 2016 to April 2017. The research was assigned in completely randomized factorial design with the first factor was the storage periode (0, 4, 8 and 12 weeks) and second factor was the seed coating (control, CMC 1,5 %, orange peel extract (0,5 %, 1,0 %, 1,5 %, 2,0 %)). Interaction of storage period and seed coating showed significant affect to seed moisture content, seed germination and dry weight of normal seedling. Seed coating with orange peel extract 1,5 % was able to keep moisture content for 4 weeks, seed germination for 12 weeks and dry weight of normal seedling for 8 weeks. Keyword: melon, orange peel extract, physiological quality, seed storage
Respon pertumbuhan dan produksi tanaman sawi Pakcoy (Brassica chinensis L.) akibat pemberian berbagai jenis pupuk kandang Rahmadun Barokah; Sumarsono Sumarsono; Adriani Darmawati
Journal of Agro Complex Vol 1, No 3 (2017)
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (42.82 KB) | DOI: 10.14710/joac.1.3.120-125

Abstract

The purpose of this research was to determine growth and production responses of Spoon Mustard (Brassica chinensis L.) due to the treatment of various type of manure and to determine types of manure which effective for the growth and production of Spoon Mustard. This Research has been conducted at  Experimental field and Laboratory of Plants’s Ecology and Production, Faculty of Animal and Agricultural Science, Diponegoro University from January to March 2017. This research used monofactorexperiment in Completely Randomized design arrangement. The treatment was variation of manure which were cow manure, goat manure, sheep manure, horse manure, and chicken manure, they would be compared with nontreatment (0 fertilizer) and  300 kg/ha urea in four times replication. The obtained data were processed statistically with analysis of variance (F test) and Duncan Multiple Range Test at 5% level. The result’s showed that manure treatment with different types gave effect to the plant heigh, number of leaves, leaf area, and plant production. The best treatment was chicken manure treatment which produced average of plant height as 26,33 cm, average of number of  leaves as 11sheet,  average of leaf area as 1033,30 cm, and Spoon Mustard production as 2319,90 g/m2.Keywords: Organic Fertilizer, Manure, Pakcoy.
Pertumbuhan dan hasil panen Bawang Merah (Allium ascalonicum l.) akibat penambahan pupuk KCl berbasis pupuk organik berbeda Neli Afrilliana; Adriani Darmawati; Sumarsono Sumarsono
Journal of Agro Complex Vol 1, No 3 (2017)
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (972.39 KB) | DOI: 10.14710/joac.1.3.126-134

Abstract

The research aims to determine the effect of KCl addition on the growth and yield of shallot (Allium ascalonicum L.) on various organic fertilizer bases. The research was conducted using a monofactor experiment with Randomized Completely Block Design (RCBD) consisting of 8 treatments with four replications. The treatment is without fertilization (K0), chicken manure (K1), goat manure (K2), cattle manure (K3), chicken manure + KCl (K4), goat manure + KCl (K5), cattle manure + KCl (K6), Urea, SP-36, KCl (K7). The observed parameters are plant height, leaf number, bulb number, bulb diameter, wet weight of plant and the potassium (K) uptake of plant. Data were subjected to Analysis of Variance (ANOVA) and followed by Duncan Multiple Range Test (DMRT). The results of the research showed organic fertilizer with or without KCl addition or NPK fertilizer gave higher plant height, leaf number, bulb diameter and wet weight of plant and potasium (K) uptake compared to without fertilization. The KCl addition on organic fertilizer did not increase wet weight of plant. The treatment chicken manure gave the higher indication on yield of plant compare to goat and cow manure.Keywords: shallot, organic fertilizer, KCl

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