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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 11 Documents
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Search results for , issue "Vol 3, No 1 (2019): Online" : 11 Documents clear
Respon tanaman anggrek (Dendrobium sp.) terhadap pemberian paklobutrazol dan jenis naungan yang berbeda Sari Noor Hidayah; Karno Karno; Florentina Kusmiyati
Journal of Agro Complex Vol 3, No 1 (2019): Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.503 KB) | DOI: 10.14710/joac.3.1.24-31

Abstract

ABSTRAK  Penelitian bertujuan untuk mengkaji jenis naungan yang sesuai dan sasaran pemberian paklobutrazol yang tepat untuk pertumbuhan serta pembungaan anggrek Dendrobium sp. Penelitian menggunakan Pooled Design dengan perlakuan naungan : N1 (naungan 30%), N2 (naungan 50%), N3 (naungan 70%), serta cara pengaplikasian paklobutrazol : P0 (kontrol), P1 (disemprotkan pada akar), P2 (disemprotkan pada daun), P3 (disemprotkan pada akar dan daun), diulang sebanyak 3 kali. Parameter yang diamati meliputi tinggi tanaman, diameter batang, klorofil total, dan waktu inisiasi bunga anggrek. Data dianalisis ragam dan uji lanjut dengan BNT pada taraf α = 5%. Hasil penelitian menunjukkan bahwa naungan 50% berpengaruh pada tinggi tanaman (26,97 cm) dan diameter batang (1,57 cm), naungan 70% juga berpengaruh terhadap tinggi tanaman anggrek (29,30 cm) dan klorofil total (0,55 mg/g). Paklobutrazol tidak memiliki pengaruh terhadap tinggi tanaman dan diameter batang. Paklobutrazol hanya berpengaruh terhadap kandungan klorofil total. Interaksi antara perlakuan naungan 70% dan pemberian paklobutrazol pada daun, menunjukkan kadar klorofil tertingi sebesar 0,71 mg/g. Faktor pemberian naungan dan paklobutrazol tidak mempengaruhi pembungaan anggrek, tapi inisiasi bunga mulai terlihat di beberapa tanaman. Waktu inisiasi bunga terjadi saat hari ke 71 – 126 setelah perlakuan. Semua inisiasi bunga tidak dapat berkembang menjadi rangkaian bunga. Kata kunci: anggrek, paklobutrazol, naungan, pertumbuhan, pembungaan. ABSTRACT  The research aimed to examine the appropriate shade types and target of paclobutrazol giving for growth and flowering of Dendrobium sp. The research used Pooled Design with shade treatment: N1 (30% shade), N2 (50% shade), N3 (70% shade), treatment of paclobutrazol application: P0 (control), P1 (sprayed on roots), P2 (sprayed on leaf), P3 (sprayed on roots and leaf), replicated three times. Parameters measured were plant height, stem diameter, total chlorophyll, and the initiation time of orchid flowers. Data analyzed with anova and followed by LSD at α = 5%. The results showed that 50% shade affect plant height (26.97 cm) and stem diameter (1.57 cm), the 70% shade also affect plant height (29.30 cm) and total chlorophyll (0.55 mg/g). Paclobutrazol has no effect on plant height and stem diameter. Paclobutrazol only affect the total chlorophyll content. The interaction between the shade treatment of 70% and the application of paclobutrazol in leaves, showed the highest total chlorophyll content of 0.71 mg/g. Shading and paclobutrazol factors do not affect the flowering of orchids, but the flower initiation begins to be seen in some plants. The initiation time of flower occurs at days 71 to 126 after treatment. All flowers initiation didn’t develop into a flower arrangement. Keyword: orchid, shade, paclobutrazol, growth, flowering  
Pertumbuhan vegetatif hasil split Dendrobium (Dendrobium sp.) pada dua jenis pupuk nitrogen dan tempat tanam Indah Suci Pratiwi; Endang Dwi Purbajanti; Eny Fuskhah
Journal of Agro Complex Vol 3, No 1 (2019): Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (159.734 KB) | DOI: 10.14710/joac.3.1.65-74

Abstract

ABSTRACT Orchids are ornamental plants that lived in the wild as epiphytes, utilized the visual side of the flower. Problems arise is a relatively long time to be able to enjoy the flowers. Split technique is an alternative that produces special orchids especially of Dendrobium type with the same properties as its mother in a relatively short time. The research was conducted in July-September 2017 in screenhouse, Faculty of Animal and Agricultural Sciences, Diponegoro University. This study aimed to know the interaction between type of nitrogen fertilizer and place of planting to vegetative growth of split Dendrobium sp. This study used Split Plot Design of Complete Randomized Design scheme with ten replications. The main plot was place of planting : T1 = attached to the coconut fiber then hung and T2 = grown in pot (coconut fiber) and subplot was the type of fertilizer: P1 = POC goat + Azolla microphylla, and P2 = Synthetic fertilizer. The variables observed were plant height, number of leaves, stem diameter, number of roots, and number of buds per plant. Data were analyzed by analysis of variance followed by LSD test at 5% level. The results showed that hook planting places significantly increased plant height and stem diameter. Synthetic fertilizer significantly increased plant height and number of leaves.There was interaction between nitrogen fertilizer and place of planting to stem diameter on vegetative growth results of split Dendrobium (Dendrobium sp.). Keywords: Dendrobium sp., nitrogen fertilizer, place of planting ABSTRAK  Anggrek merupakan tanaman hias yang hidup di alam bebas secara epifit, dimanfaatkan sisi visualnya terutama dari bentuk dan warna bunga. Masalah yang timbul adalah waktunya yang relatif lama untuk berbunga. Teknik split merupakan alternatif yang menghasilkan anggrek khususnya jenis Dendrobium dengan sifat sama seperti induknya dalam waktu yang relatif singkat. Penelitian dilaksanakan pada Juli-September 2017 di screen house, Departemen Pertanian, Fakultas Peternakan dan Pertanian, Universitas Diponegoro. Tujuan penelitian adalah untuk mengetahui pengaruh interaksi jenis pupuk dan tempat tanam terhadap pertumbuhan vegetatif hasil split Dendrobium sp. Penelitian ini menggunakan Rancangan Petak Terbagi (Split Plot) skema RAL dengan 10 kali ulangan. Petak utama (main plot) adalah tempat tanam: T1 = dilekatkan pada serabut kelapa kemudian digantung dan T2 = ditanam dalam pot (serabut kelapa) dan anak petak (sub plot) adalah jenis pupuk: P1 = POC kotoran kambing+Azolla microphylla, dan P2 = pupuk sintetis. Variabel yang diamati antara lain adalah tinggi tanaman, jumlah daun, diameter batang, jumlah akar, dan jumlah tunas per tanaman. Data yang diperoleh dianalisis dengan ANOVA dan dilanjutkan dengan uji BNT (Beda Nyata Terkecil) pada taraf 5%. Hasil penelitian menunjukkan bahwa tempat tanam gantungan meningkatkan tinggi tanaman dan diameter batang secara signifikan. Pupuk sintetis meningkatkan tinggi tanaman dan jumlah daun secara signifikan. Terjadi interaksi antara pemberian pupuk nitrogen dan tempat tanam terhadap diameter batang pada pertumbuhan vegetatif hasil split Dendrobium (Dendrobium sp.).
Aplikasi beberapa jenis pupuk organik cair terhadap pertumbuhan dan produksi tanaman cabai rawit (Capsicum frutescens l.) Asri Nur Fitriningtyas; Sutarno Sutarno; Eny Fuskhah
Journal of Agro Complex Vol 3, No 1 (2019): Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (151.45 KB) | DOI: 10.14710/joac.3.1.32-39

Abstract

ABSTRAK  Penelitian ini bertujuan untuk mengetahui jenis pupuk organik cair dan interval waktu pemberian yang tepat guna mendapatkan hasil pertumbuhan dan produksi tanaman cabai rawit yang baik. Penelitian menggunakan rancangan acak lengkap pola faktorial 4x3 dengan faktor pertama jenis pupuk P1: Urin kelinci, P2: Urin sapi, P3: Bio extrim, P4: Biofarm dan faktor kedua interval waktu pemberian pupuk T1: 5 hari sekali, T2: 10 hari sekali, T3: 15 hari sekali. Masing-masing perlakuan diulang sebanyak 3 kali. Analisis data yang digunakan yaitu analisis ragam (ANOVA) dan dilanjut dengan uji Duncan’s Multiple Range Test (DMRT)taraf 5%. Parameter yang diamati adalah tinggi tanaman, jumlah daun, jumlah buah per tanaman, dan berat buah per tanaman. Hasil penelitian menunjukkan bahwa pupuk Bio extrim memberikan hasil tertinggi pada semua parameter dan diikuti oleh pupuk urin kelinci. Interval waktu pemberian pupuk 5 hari sekali dapat meningkatkan tinggi tanaman cabai rawit. Kata kunci: cabai rawit, pupuk organik cair, interval waktu pemberian ABSTRACT  This research aims to determine the suitable type of liquidorganic fertilizers and the corrected application to maximize the growth and productions of cayenne pepper.This experiment used a completely randomized factorial design 4x3 with 3 replications. The first factor was the types of fertilizers P1: Rabbit urine, P2: Cow urine, P3: Bio extrim, P4: Biofarm and the second factor was the interval of fertilizer application T1: 5 days, T2: 10 days, T3: 15 days. The data analysis used analysis of variance (ANOVA) and continued with Duncan’s Multiple Range Test (DMRT) of 5%. The parameters of the observation were the height of plants, number of leaves, number of fruits, and weight of fruit per plant. The result shows that Bio extrim gave the highest result in all parameters and than followed by rabbit urine. The interval of 5 days fertilizer gave the best result on the parameters of plant’s height. Keywords: cayenne pepper, organic liquid fertilizer, interval of fertilizeraplication 
Pertumbuhan dan produksi tanaman kailan (Brassica oleracea) akibat pemberian mulsa jerami padi dengan takaran yang berbeda Alvianisa Anjanuari Setiyaningrum; Adriani Darmawati; Susilo Budiyanto
Journal of Agro Complex Vol 3, No 1 (2019): Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (153.568 KB) | DOI: 10.14710/joac.3.1.75-83

Abstract

ABSTRACT  The objective of this research was to examine the effect and quantity of rice straw mulch on the growth and production of kailan. This research was conducted inAspakusa Makmur Farms Association, Teras, Boyolali and Laboratory of Ecology and Plant Production, Faculty of Animal and Agricultural Sciences, Diponegoro University, Semarangfrom January 24th to March24th 2018. The research was assigned in completely randomized monofactor design with the factor was M0: control, M1: 2 ton/ha, M2: 4 ton/ha, M3: 6 ton/ha and M4: 8 ton/ha. Parameters observed were plant height, number of leaves, soil and temperature, plant and root wet weight, plant and root dry weight and total chlorophyll content.The results showed thatmulch treatment with a dose of 6 tons/ha was able to increase the yield of leaves, root dry weight and total chlorophyll content but did not increase crop yields, soil and temperature, plant and root wet weight, plant dry weight Keyword: Kailan, Mulch, Rice straw ABSTRAK  Penelitian bertujuan untuk mengkaji pengaruh dan takaran mulsa jerami padi terhadap pertumbuhan dan produksi tanaman kailan. Penelitian dilakukan pada tanggal24 Januari 2018 – 24 Maret 2018 di Lahan pertanian Asosiasi Aspakusa Makmur Kecamatan Teras Kabupaten Boyolali dan Laboratorium Ekologi dan Produksi Tanaman, Fakultas Peternakan dan Pertanian, Universitas Diponegoro, Semarang. Penelitian disusun dengan rancangan acak lengkap monofaktor dengan perlakuan M0: kontrol, M1: jerami padi 2 ton/ha, M2: jerami padi 4 ton/ha, M3: jerami padi 6 ton/ha dan M4: jerami padi 8 ton/ha. Parameter yang diamati adalah tinggi tanaman, jumlah daun, kelembaban dan suhu tanah, berat basah tanaman dan akar, berat kering tanaman dan akar dan kandungan klorofil total. Hasil penelitian menunjukkan bahwa Perlakuan mulsa dengan takaran 6 ton/ha mampu meningkatkan hasil jumlah daun, berat kering akar dan kandungan klorofil total tetapi tidak meningkatkan hasil tinggi tanaman, kelembaban dan suhu tanah, berat basah tanaman dan akar, berat kering tanaman Kata kunci: kailan, mulsa, jerami padi 
Pengaruh substitusi pupuk anorganik dengan pupuk herbal organik terhadap pertumbuhan dan produksi tanaman tomat (Lycopersicum esculentum mill) varietas permata Rifaya Dania Sari; Susilo Budiyanto; Sumarsono Sumarsono
Journal of Agro Complex Vol 3, No 1 (2019): Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (145.808 KB) | DOI: 10.14710/joac.3.1.40-47

Abstract

ABSTRACT  The aim of this research was to observe of subtitution of inorganic fertilizer with organic herbs fertilizer on growth and production of tomato plants. The research used Monofactor Completely Randomized Design with 3 replications. The treatment that substitution of inorganic fertilizer with organic herbal fertilizer were 100%+0% (T0); 80%+20% (T1); 60%+40% (T2); (T3) 40%+60% (T3);20%+80% (T4); 0%+100% (T5). Parameters observed were plant height, number of leaves, number of flowers, number of fruit and weight of fresh fruit. Data were analysis of variabel (F Test) and further test with Tukey Multiple Range Test (BNT). The results showed that the substitution of fertilizer on treatment T3 (40% of inorganic fertilizers + 60% organic herbal fertilizer) can give number of leaves, number of flowers, number of fruit and weight of fresh fruit higher than compared with the other treatment. However, no significant effect on plant height. Keywords: Tomato varieties of permata, organic herbal fertilizer, dosage ABSTRAK  Penelitian bertujuan untuk mengetahui pengaruh substitusi pupuk anorganik dengan pupuk herbal organik terhadap pertumbuhan dan produksi tanaman tomat. Penelitian menggunakan percobaan Monofaktor Rancangan Acak Lengkap dengan 3 ulangan. Perlakuan yang diberikanadalah substitusi pupuk anorganik dengan pupuk herbal organik yaitu 100%+0% (T0); 80%+20% (T1); 60%+40% (T2); (T3) 40%+60% (T3);20%+80% (T4); 0%+100% (T5). Parameter yang diamati yaitu tinggi tanaman, jumlah daun, jumlah bunga, jumlah buah dan berat buah segar. Data diolah dengan analisis ragam (Uji F) dan uji lanjut denganBeda Nyata Terkecil (BNT).Hasil penelitian menunjukkan bahwa substitusi pupuk pada perlakuan T3(40% pupuk anorganik + 60% pupuk herbal organik) dapat menghasilkan jumlah daun, jumlah bunga, jumlah buah dan berat segar buah tomat lebih tinggi dibandingkan dengan perlakuan lainnya. Namun tidak berpengaruh nyata terhadap tinggi tanaman. Kata kunci: tomat varietas permata, pupuk herbal organik, dosis 
Pengaruh konsentrasi zpt giberalin dan lama penyinaran terhadap pertumbuhan dan hasil tanaman krisan (Chrysanthemum morifolium) Dian Rifalasna; Sumarsono Sumarsono; Budi Adi Kristanto
Journal of Agro Complex Vol 3, No 1 (2019): Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (175.495 KB) | DOI: 10.14710/joac.3.1.84-95

Abstract

ABSTRACT               This study aims to examine the effect of giberalin ZPT concentration and duration of irradiation on the growth and yield of chrysanthemum (Chrysanthemum morifolium) cut flowers. The study took place in February - June 2018. The study was conducted in Mendongan Village, Sumowono District, Semarang Regency, Central Java.  ABSTRACT  This study aimed to examine the effect of giberalin concentration and duration of irradiation on the growth and yield of chrysanthemum (Chrysanthemum morifolium) cut flowers. The study took place in February - June 2018. The study was conducted in Mendongan Village, Sumowono District, Semarang Regency, Central Java. The design used in the study was a Completely Randomized Factorial 4x4 Design. The first factor was gibberallin treatment consisted of G1: GA 0 ppm, G2: GA 10 ppm, G3: GA 20 ppm, G4: GA 30 ppm. The second factor was the irradiation time consisted of R1: 1 hour irradiation time, R2: 2 hours irradiation time, R3: 3 hours irradiation time, and R4: 4 hours irradiation time. Parameters observed were plant height, stem diameter, number of leaves, leaf area, number of flowers, flower diameter, flowering age and flower harvesting age.The results showed that the treatment of giberalin concentration significantly affected the parameters of the amount of interest. While the irradiation treatment time significantly affected the parameters of plant height, number of leaves, flower diameter, stem diameter, age of flowering, and leaf area. Keywords: Giberalin, Chrysanthemum, Irradiation Period ABSTRAK  Penelitian ini bertujuan untuk mengkaji pengaruh konsentrasi ZPT giberalin dan lama penyinaran terhadap pertumbuhan dan hasil bunga potong tanaman krisan (Chrysanthemum morifolium). Penelitian berlangsung pada bulan Februari - Juni 2018. Penelitian dilakukan di Desa Mendongan, Kecamatan Sumowono, Kabupaten Semarang, Jawa Tengah. Rancangan yang digunakan dalam penelitian adalah Percobaan Faktorial 4x4 Rancangan Acak Lengkap (RAL). Faktor pertama yaitu perlakuan giberalin sebanyak 4 taraf yaitu G1 : GA 0 ppm, G2 : GA 10 ppm, G3 : GA 20 ppm, G4 : GA 30 ppm. Faktor kedua adalah lama penyinaran dengan 4 taraf yaitu R1 : lama penyinaran 1 jam, R2 : lama penyinaran 2 jam, R3 : lama penyinaran 3 jam, dan R4 : lama penyinaran 4 jam. Parameter yang diamati adalah tinggi tanaman, diameter batang, jumlah daun, luas daun, jumlah bunga, diameter bunga, umur berbunga dan umur panen bunga. Hasil penelitian menunjukkan bahwa konsentrasi giberalin berpengaruh nyata terhadap peningkatan jumlah bunga yang bertambah banyak. Sedangkan lama penyinaran berpengaruh nyata terhadap peningkatan tinggi tanaman, jumlah daun, diameter bunga, diameter batang, umur berbunga, dan luas daun. Kata Kunci :Giberalin, Krisan, Lama Penyinaran
Respon pertumbuhan dan produksi tanaman kedelai (Glycine max L.) pada berbagai dosis dan jenis pupuk organik Nur Zahrotun; Yafizham Yafizham; Eny Fuskhah
Journal of Agro Complex Vol 3, No 1 (2019): Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (49.499 KB) | DOI: 10.14710/joac.3.1.9-14

Abstract

ABSTRAK  Penelitian bertujuan untuk mengkaji pengaruh interaksi antara dosis dan berbagai jenis pupuk organik terhadap pertumbuhan dan produksi tanaman kedelai. Penelitian telah dilaksanakan pada bulan Mei – Agustus 2017 di Lahan Percobaan dan Laboratorium Ekologi dan Produksi Tanaman, Fakultas Peternakan dan Pertanian, Universitas Diponegoro, Semarang. Penelitianmenggunakan Rancangan Acak Lengkap (RAL) Faktorial 2 x 5 dengan 3 ulangan. Faktor pertama adalah dosis pupuk yaitu D1 : 50 kg P/ha dan D2 : 100 kg P/ha. Faktor kedua adalah jenis pupuk yaitu J0 : SP-36, J1 : bioslurry, J2 : kotoran sapi, J3 : kotoran kambing dan J4 : kotoran ayam. Parameter yang diamati adalah tinggi tanaman, jumlah daun, jumlah polong total dan bobot 100 biji. Data dianalisis menggunakan analisis ragam dan apabila terdapat pengaruh nyata dilanjutkan dengan Uji Duncan Multiple Range Test (DMRT) taraf 5%. Hasil penelitian menunjukkan bahwa jenis pupuk kotoran kambing mampu meningkatkan pertumbuhan dan produksi tanaman kedelai paling tinggi dibandingkan dengan pupuk kotoran ayam, kotoran sapi, bioslurry dan SP-36 dengan dosis pupuk 50 kg P/ha. Kata kunci : kedelai, pupuk organik, pupuk SP-36.ABSTRACT The research aimed was to study the interaction between dosages and kinds of organic fertilizer on growth and yield of soybean. The research was conducted in May - August 2017 at Experimental Field and Ecology and Plant Production Laboratory, Faculty of Animal and Agriculture, Diponegoro University, Semarang. The research design used completely randomized design with factorial design 2 x 5 with 3 replications. The first factor were organic fertilizer dosages D1 : 50 kg P/ha and D2 : 100 kg P/ha. The second factors were kind of organic fertilizers J0 : SP-36, J1 : bioslurry, J2 : cow manure, J3 : goat manure, and J4 : chicken manure. The parameters observed were plant height, number of leaves, total number of pod, and 100 seeds weight. Data analyzed using analysis of variance and using Duncan Multiple Ranged Test on alpha 5%. The result showed that the goat manure fertilizer can increase the growth and production of soybean plant is highest compared with chicken manure, cow manure, bioslurry and SP-36 with dosage of 50 kg P/ha. Keywords : soybean, organic fertilizer, fertilizer SP-36.
Pertumbuhan dan produksi tanaman kacang tanah (Arachis hypogaea l.) dengan inokulasi cendawan mikoriza vesikular-arbuskular dan pemupukan fosfat Disna Afina Faza; Dwi Retno Lukiwati; Karno Karno
Journal of Agro Complex Vol 3, No 1 (2019): Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (39.503 KB) | DOI: 10.14710/joac.3.1.48-54

Abstract

ABSTRACT  The objective of this research was to study the growth and production of peanut at phosphate fertilization and vesicular-arbuscular mycorrhizal fungi (MVA) inoculation. This research was conducted in green house and Laboratory of Plant Physiology and Breeding UNDIP, and Laboratory of Micology UGM from April 16th to August 15th 2017. The research was assigned in completely randomized factorial design with the first factor was the phosphate fertilization control, Triple Super Phosphate (TSP) and rock phosphate (BP) and second factor was without vesicular-arbuscular mycorrhizal fungi (MVA) inoculation and with vesicular-arbuscular mycorrhizal fungi (MVA) inoculation. The results showed that TSP fertilizationhad significant effect onplant height, number of pods, weight of pods, weight of seed and total P content of soil. Fertilization of BP had significant effect onnumber of pods, weight of pods, weight of seed, total P content of soil and total P of peanut hay. Inoculation of MVA had significant effect onplant height, number of pods, weight of pods, weight of seed, total P content of soil, percentage of colonization on plant roots and number of MVA spores.Keyword: peanut, vesicular-arbuscular mycorrhizal fungi, phosphorus fertilization ABSTRAK Penelitian bertujuan untuk mengkaji pertumbuhan dan produksi tanaman kacang tanah (Arachis hypogaea L.) pada berbagai jenis pemupukan fosfat dan inokulasi cendawan mikoriza vesikular-arbuskular (MVA). Penelitian dilakukan pada tanggal 16 April – 15 Agustus 2017 di green house dan Laboratorium Fisiologi dan Pemuliaan Tanaman UNDIP, serta Laboratorium Mikologi UGM. Penelitian disusun dengan rancangan acak lengkap faktorial dengan faktor pertama adalah kontrol, pemupukan Triple Super Phosphate (TSP), Batuan Fosfat (BP) dan faktor kedua adalah tanpa inokulasi cendawan MVA dan dengan inokulasi cendawan MVA. Hasil penelitian menunjukkan bahwa perlakuan pemupukan TSP berpengaruh nyata terhadap tinggi tanaman, jumlah polong, bobot polong, bobot biji dan kadar P total tanah. Pemupukan BP berpengaruh nyata terhadap jumlah polong, bobot polong, bobot biji, kadar P total tanah dan kandungan P jerami tanaman kacang tanah. Inokulasi cendawan MVA berpengaruh nyata terhadap tinggi tanaman, jumlah polong, bobot polong, bobot biji, kadar P total tanah, persentase kolonisasi pada akar tanaman dan jumlah spora cendawan MVA.Kata kunci: kacang tanah, cendawan mikoriza vesikular-aruskular, pemupukan fosfat 
Pertumbuhan dan produksi dua varietas selada (Lactuca sativa l.) pada berbagai tingkat naungan dengan metode hidroponik M Arif Rohman Hakim; Sumarsono Sumarsono; Sutarno Sutarno
Journal of Agro Complex Vol 3, No 1 (2019): Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (152.773 KB) | DOI: 10.14710/joac.3.1.15-23

Abstract

ABSTRACT  The study aims to determine the growth and production of two varieties of lettuce at various levels of shade by hydroponic methods. This research was done by using serie experiment by Randomized Block Design with 3 bloks. Treatment of varieties with 3 series groups on each shade treatment. The shade treatment consisted of four shaded treatment levels (N0), 50% Shade (N1), 60% Shade (N2), and 70% Shade (N3). every shade was tested 2 varieties of lettuce Romain Romain green varieties (V1) and Romain lettuce varieties Tiberius (V2). Parameters observed for plant height, number of leaves, leaf area, fresh weight of plant, and dry weight of plant. The results showed that shade levels increased plant height in 50% and 60% shade, but decreased leaf number, leaf area, wet weight, and dry weight as shade level increased. Tiberius varieties produce higher plant height, leaf number, and wet weight significantly higher than Green Romain varieties. Keywords :Lettuce, shades, varieties, hydroponic ABSTRAK  Penelitian bertujuan untuk mengkaji pertumbuhan dan produksi dua varietas selada pada berbagai tingkat naungan dengan metode hidroponik. Penelitian ini dilakukan percobaan seri dengan Rancangan Acak Kelompok (RAK) dengan 3 kelompok. Perlakuan varietas dengan 3 kelompok seri pada setiap perlakuan naungan. Perlakuan naungan terdiri dari empat taraf perlakuan yaitu tanpa naungan (N0), Naungan 50% (N1), Naungan 60% (N2), dan Naungan 70% (N3). Pada setiap naungan dicobakan 2 varietas selada yaitu selada Romain varietas Green Romain (V1) dan selada Romain varietas Tiberius (V2). Parameter yang diamati tinggi tanaman, jumlah daun, luas daun, berat segar tanaman, dan berat kering tanaman. Hasil penelitian menunjukkan bahwa tingkat naungan menaikkan tinggi tanaman pada naungan 50% dan 60%, tetapi menurunkan jumlah daun, luas daun, berat basah, dan berat kering seiring dengan meningkatnya tingkat naungan. Varietas Tiberius menghasilkan tinggi tanaman, jumlah daun, dan berat basah lebih tinggi secara signifikan dibandingkan varietas Green Romain. Kata kunci : Selada, naungan, varietas, hidroponik 
Pengaruh waktu pemangkasan pucuk dan sisa buah setelah penjarangan terhadap hasil produksi tanaman semangka (Citrullus vulgaris schard) Anita Dwi Yuriani; Eny Fuskhah; Yafizham yafizham
Journal of Agro Complex Vol 3, No 1 (2019): Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (157.003 KB) | DOI: 10.14710/joac.3.1.55-64

Abstract

ABSTRACT  The objective of this research was to know growth and the production of watermelon plants through the treatment of pruning time on shoots and the amount of residual fruit after thinning. The research was carried out on Klaten Watermelon Clay, located in Genukan Village, Wedi Sub-district, Klaten District, and at the Laboratory Chemistry and Food Nutrition Faculty of Animal and Agricultural Sciences, Diponegoro University from February to May 2017. The research was arranged using completely randomized factorial design with the first factor being shoot pruning time (P1 = no trimming, P2 = 3rd week, P3 = 6th week, P4 = 3rd and 6th week) and the second factor was the rest of the fruit after thinning (Q1 = without thinning, Q2 = thinning leaves 1 piece, Q3 = thinning leaves 2 pieces). The results showed the treatment of pruning of shoots and the remaining fruit after spacing did not affect the growth plant height and number of leaves watermelon until 8th week. However pruning of shoots 3rd week and 6th week can affect fruit diameter, fresh fruit weight, and fruit sugar levels. Treatment of the remaining fruit after the spacing is pruned 2 pieces affect the diameter of fruit and fresh weight of fruit while the rest of the fruit after spacing is purned 1 pieces fruit affect the fruit sugar levels. Keywords: watermelon, pruning, thinning, production ABSTRAK  Penelitian bertujuan untuk mengetahui pertumbuhan dan hasil produksi tanaman buah semangka melalui perlakuan waktupemangkasan pada pucuk dan jumlah sisa buah setelah penjarangan. Penelitian ini dilaksanakan pada di lahan Sahabat Semangka Klaten, yang terletak di Desa Genukan, Kecamatan Wedi, Kabupaten Klaten, dan di Laboratorium Kimia dan Gizi Pangan Fakultas Peternakan dan Pertanian Universitas Diponegorodari bulan Juli - September2017. Penelitian disusun menggunakan rancangan acak lengkap factorial dengan faktor pertama adalah waktu pemangkasan pucuk (P1 = tanpa pemangkasan, P2 = minggu ke 3, P3 = minggu ke 6, P4 = minggu ke 3 dan 6) danfaktor kedua adalah sisa buah setelah penjarangan (Q1 = tanpa penjarangan, Q2 = penjarangan disisakan 1 buah, Q3 = penjarangan disisakan 2 buah). Hasil penelitian menunjukan perlakuan pemangkasan pucuk dan sisa buah setelah penjarangan tidak mempengaruhi pertumbuhan tinggi tanaman dan jumlah daun semangka sampai minggu ke 8. Namun pemangkasan pemangkasan pucuk minggu ke 3 dan 6 mempengaruhi diameter buah, bobot segar buah, dan kadar gula buah. Perlakuan sisa buah setelah penjarangan yang dijarangkan 2 buah mempengaruhi diameter buah dan bobot segar buah sedangkan sisa buah setelah penjarangan yang dijarangkan 1 buah mempengaruhi kadar gula buah.Kata Kunci: semangka, pemangkasan, penjarangan, produksi 

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