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Journal : Journal of Agro Complex

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  
Keberhasilan sambung samping tanaman durian (Durio zibenthinus M.) akibat konsentrasi IAA (Indole Acetic Acid) dan umur batang bawah yang berbeda Irvan Adi Fitriyanto; Karno Karno; Budi Adi Kristanto
Journal of Agro Complex Vol 3, No 3 (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 (143.554 KB) | DOI: 10.14710/joac.3.3.166-173

Abstract

Penelitian ini bertujuan untukmengkaji keberhasilan sambung samping tanaman durian pada berbagai taraf konsentrasi IAA dan umur batang bawah yang berbeda. Penelitian disusun dengan rancangan acak lengkap faktorial dengan faktor pertama adalah konsentrasi auksin IAA (0, 75 da 150 ppm) dan faktor kedua adalah umur batang bawah (6, 9, dan 12 bulan). Masing-masing perlakuan diulang 5 kali. Parameter yang diamati yaitu waktu keberhasilan sambungan, waktu pecah tunas, panjang tunas, jumlah daun terbuka, dan lebar tajuk. Data dianalisis ragam dan dilanjutkan uji DMRT (Duncan Multiple Range Test). Hasil penelitian menunjukkan bahwa tidak ada pengaruh pada taraf konsentrasi IAA sedangkan taraf umur batang bawah memberikan pengaruh nyata (P<0,05) terhadap jumlah daun terbuka dan lebar tajuk. Tidak ada interaksi antara taraf konsentrasi IAA dan umur batang bawah yang berbeda terhadap sambung samping durian vaietas bawor. Kata kunci : durian bawor, IAA, sambung samping, umur batang bawah
Uji viabilitas dan pertumbuhan benih kedelai (Glycine max) dengan perlakuan invigorasi menggunakan ekstrak bawang merah Indah Lestari; Karno Karno; Sutarno Sutarno
Journal of Agro Complex Vol 4, No 2 (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.4.2.116-124

Abstract

ABSTRACT  The purpose of this research was to examine the effect of the interaction between the different dosages of shallot extract and immersion time on the viability and growth of Kaba soybean seed varieties that have been stored since 2013. This research used a completely randomized factorial design. The first factor was the dosages of onion extract (D0 = 0% D1 = 40% D2 = 60% and D3 = 100%). The second factor is the immersion time (P1 = 3 hours P2 = 6 hours and P3 = 9 hours). The parameters during seed germination were seed germination, vigor index, maximum growth potential, seed growth speed and electrical conductivity. Growth stage (vegetative) parameters consist of plant height and number of leaves. The data were analyzed by variance analysis and continued analyzed by Duncan's Multiple Range Test. The results showed that there is an interaction between the different dosages of shallot extract and immersion time. Dosages 40%, 60%, 100% increased seed germination, vigor index, maximum growth potential, growth rate, plant height and the number of leaves compare to control (0%). There was no influence of different immersion time on increased seed germination, vigor index, maximum growth potential, growth rate, plant height and the number of leaves. Keywords : Invigoration, Seed Viability, Onion Extract, Glycine max ABSTRAK  Penelitian ini bertujuan untuk mengkaji pengaruh interaksi antara perbedaan dosis ekstrak bawang merah dan lama perendaman terhadap viabilitas dan pertumbuhan benih kedelai varietas Kaba yang telah disimpan sejak 2013. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) pola faktorial 4x3. Faktor pertama adalah konsentrasi ekstrak bawang merah (K0 = 0% K1 = 40% K2 = 60% dan K3 = 100%). Faktor kedua adalah lama perendaman masing-masing bahan (P1 = 3 jam P2 = 6 jam dan P3 = 9 jam). Variabel yang diamati pada masa perkecambahan benih antara lain daya kecambah benih, indeks vigor, potensi tumbuh maksimum, kecepatan tumbuh benih dan daya hantar listrik. Variabel pada tahap pertumbuhan (vegetatif) terdiri dari tinggi tanaman dan jumlah daun. Data yang diperoleh dianalisis dengan anova dan dilanjutkan dengan uji Duncan. Hasil penelitian menunjukkan terjadi interaksi pemberian dosis dan lama perendaman pada fase perkecambahan. Dosis 40%, 60%, dan 100% dapat meningkatkan daya berkecambah, indeks vigor, potensi tumbuh maksimum, kecepatan tumbuh benih, tinggi tanaman dan jumlah daun dibandingkan dengan kontrol (0%). Lama perendaman tidak berpengaruh terhadap daya berkecambah, indeks vigor, potensi tumbuh maksimum, kecepatan tumbuh benih, tinggi tanaman dan jumlah daun. Kata kunci: Invigorasi, Viabilitas Benih, Ekstrak Bawang Merah, Kedelai
Perkecambahan benih dan pertumbuhan bibit jarak pagar (Jatropha curcas Linn.) dengan invigorasi menggunakan zat pengatur tumbuh pada periode simpan yang berbeda Indah Puspitaningtyas; Syaiful Anwar; Karno Karno
Journal of Agro Complex Vol 2, No 2 (2018)
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (296.542 KB) | DOI: 10.14710/joac.2.2.148-154

Abstract

Jatropha curcas is a plant that is used as an alternative energy for fossil fuel replacement because of it’s high oil content. Jatropha curcas seeds have 30-40% oil content. The purpose of the study was to improve the seed quality and to enhance seedling growth of Jatropha curcas after storage using plant growth regulator. This study used factorial design based on Completely Randomized Design with two factors and 3 replications. The first factor was seed storage which consist of 2 levels : A1 = seed storage in 2015, A2 = seed storage in 2016. The second factor was plant growth regulator level which consists of 6 levels : B1=GA+NAA 0 ppm, B2= GA+NAA 20 ppm, B3= GA+ NAA 40 ppm, B4= GA+NAA 60 ppm, B5 = GA+NAA 80 PPM, B6 = GA+NAA 100 ppm. Parameters measured were seed germination, vigor index, growth rate, plant height and the number of leaves. The data were analyzed statistically by analysis of variance and followed by Tukey test and Polynomial Orthogonal. The result showed that seed germination, vigor index and growth rate were significantly affected by storage treatment and invigoration using plant growth regulator treatment. Invigoration using auxin and gibberellic acid 40 ppm has the highest result of seed germination, vigor index and growth rate. There was no influence of seed storage and invigoration with plant growth regulator treatment on plant height and number of leaves. Keywords : Jatropha curcas, invigoration, plant growth regulator.
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 
Efektifitas aplikasi Beauveria bassiana sebagai upaya pengendalian wereng batang coklat dan walang sangit pada tanaman padi di Desa Campursari Kecamatan Bulu Kabupaten Temanggung Tri Purwaningsih; Budi Adi Kristanto; Karno Karno
Journal of Agro Complex Vol 2, No 1 (2018)
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (674.566 KB) | DOI: 10.14710/joac.2.1.12-18

Abstract

Beauveria bassiana is one of the pathogens that can be used as an environmentally friendly bio pesticide, as it does not produce harmful residues and does not cause pest resistance. This research was conducted in the village of Campursari village, District of Bulu, Temanggung Regency. The purpose of this research was assess the effectiveness of Beauveria bassiana application in order to suppress the population of brown planthopper and adult rice bug in rice plants and to find out rice plants production. The research used factorial randomized design which consists of two treatments. The first treatment was the application of Beauveria bassiana with controlled doses by 0, 100, 150 and 200 g/14 l. The second treatment was the application interval between 7, 10, and 14 days. The parameters observed were brown planthopper populations, adult rice bug population, plant height, number of tillers and grain production. The results showed that application with doses of 200 g/14 l and 7 day interval application was effective to suppress population of brown planthopper and adult rice bug and also saved grain production by 1,20 kg to 7,02 kg/m2 depending on application dosage. Keywords : planthopper, adult rice bug, Beauveria, doses, application interval
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 
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

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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
Tanggap pertumbuhan dan perkembangan tanaman tomat (solanum lycopersicum) terhadap paklobutrazol dan komposisi media tanam (Response of the growth and development of tomato plants (solanum lycopersicum) on paclobutrazol and the composition of the planting media) Maudi Siti Sarah Nazibah; Karno Karno; Dwi Retno Lukiwati
Journal of Agro Complex Vol 2, No 3 (2018)
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.2.3.%p

Abstract

The objective of this research was to study the response of tomato plant on paclobutrazol and different planting media composition. The study used Completely Randomized Design factorial 4x3with the first factor wasapplication of paclobutrazol 0 ppm (P0), 50 ppm (P1), 100 ppm (P2), dan 150 ppm (P3), and the second factor was composition of planting media (soil:compost) 80%:20% (M1), 60%:40% (M2), dan 40%:60% (M3),with 3 replications. The parameters observed were plant height, number of leaves, number of flowers, leaf chlorophyll content, number of fruit. Data were subjected to analysis of variance and further test by Duncan's Multiple Range Test (DMRT). The results showed that the application of paclobutrazol doses 50, 150 ppm, and without paclobutrazol (control) resulted in the number of flower of 70.56, leaf chlorophyll content index of 53.16, and plant height of 157.78 cm that ware significantly higher (p<0.05) than other treatments. The treatment without paclobutrazol with 60%:40% planting composition resulted in a significantly higher (p<0.05) leaf number than other treatments. Paclobutrazol doses of 100 ppm and 60%:40% of planting media composition yielded 10.33 fruitsthat was higher (p<0.05) than other treatments. Keywords : Paclobutrazol, planting composition, tomato, growth 
Peningkatan kualitas planlet tanaman pisang raja bulu (Musa paradisiaca) dengan penambahan bap dan iaa pada media pengakaran kultur in vitro Rizal Try Nofiyanto; Florentina Kusmiyati; Karno Karno
Journal of Agro Complex Vol 3, No 3 (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 (157.282 KB) | DOI: 10.14710/joac.3.3.132-141

Abstract

Penelitian ini bertujuan untuk mengkaji pengaruh penambahan BAP dan IAA pada media pengakaran kultur jaringan terhadap pertumbuhan tanaman pisang raja bulu (Musa paradisiaca). Penelitian dilaksanakan di Laboratorium Kultur Jaringan Kebun Benih Hortikultura Salaman, Magelang pada bulan Juni hingga Agustus 2018. Rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) faktorial dengan 4 (empat) kali ulangan. Faktor pertama adalah hormon BAP dengan konsentrasi masing-masing 0 ; 0,5 ; 1 ; 1,5 ; dan 2 ppm, faktor kedua yaitu hormon IAA dengan konsentrasi 0, 1, 2, 3, dan 4 ppm. Kombinasi perlakuan sebanyak 25 dengan 4 kali ulangan, sehingga terdapat 100 unit percobaan yang setiap unit percobaan terdiri dari 5 planlet pisang raja bulu. Hasil penelitian menunjukkan bahwa terdapat pengaruh interaksi perlakuan BAP dan IAA terhadap parameter pertumbuhan planlet pisang raja bulu. Kombinasi BAP 1 ppm + IAA 3 ppm memberikan pengaruh terbaik pada jumlah daun dan diameter batang, sedangkan kombinasi BAP 0,5 ppm + IAA 4 ppm memberikan pengaruh terbaik pada jumlah akar dan panjang akar. Kombinasi BAP 1,5 ppm + IAA 4 ppm memberikan pengaruh terbaik pada tinggi planlet. Kesimpulan dari penelitian ini adalah zat pengatur tumbuh BAP 0,5 – 1,5 ppm + IAA 3 – 4 ppm direkomendasikan untuk media pengakaran kultur jaringan pisang raja bulu. Kata kunci: in vitro, BAP, IAA, plantlet, pisang