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INDONESIA
Planta Tropika
Published by Universitas Muhammadiyah Yogyakarta
ISSN : 0216499X     EISSN : 25287079     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
PLANTA TROPIKA : Jurnal Agrosains (Journal of Agro Science) provides a forum for researchers on applied agricultural science to publish the original articles. PLANTA TROPIKA published two times a year (February and August) by Universitas Muhammadiyah Yogyakarta in collaboration with Indonesian Association of Agrotechnology / Agroecotechnology (PAGI). Planta Tropika focuses related to various themes, topics and aspects including (but not limited) to the following topics Agro-Biotechnology, Plant Breeding, Agriculture Waste Management, Plant Protection, Soil Science, Post Harvest Science and Technology, Horticulture.
Arjuna Subject : -
Articles 427 Documents
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Penetapan Standar Warna Daun Sebagai Upaya Identifikasi Status Hara (N) Tanaman Jagung (Zea mays L.) pada Tanah Regosol Nugroho, Wisnu Sapto
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 3, No 1 (2015)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2015.034.8-15

Abstract

A study aims to determine a standard of green color on corn leaves as marker of nitrogen adequacy. A study was conducted in the field of Universitas Muhammadiyah Yogyakarta. The experiment was arranged in a completely randomized design (CRD, which consisted of 7 treatments: 125 kg N/h (N1), 150 kg N/h (N2), 175 kg N/h (N3), 200 kg N/h (N4), 225 kg N/h (N5), 250 kg N/h (N6), and 275 kg N/h (N7). The result showed that the scale between 5GY 5/8 and 5GY 6/8 was the best Leaf color scale to identify Nitrogen condition on corn yield at range of 250 kg N/h and 275 kg N/h. The dose of 250 kg N/h resulted the highest plant height of corn. The dose of 275 kg N/h resulted the highest seed weight per ear and grain weight of 100 seeds at 14% moisture content.
Kajian Dampak Iklim Ekstrim Curah Hujan Tinggi (La-Nina) Pada Jeruk Siam (Citrus Nobilis var. Microcarpa) Di Kabupaten Banyuwangi, Jember Dan Lumajang Supriyanto, Arry; Ashari, Hasim; Hanif, Zainuri
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 2, No 1 (2014)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2014.023.49-55

Abstract

Tangerine (Citrus nobilis var. microcarpa) is most widely cultivated Citrus in Indonesia, it’s around 80% of all population of Citrus. Citrus can growth and cultivated in low land or upland (0-1500 m above sea level). Indonesia has extreme climate change (La Nina) in 2009 and 2010. Extreme climate change is one of the factors that affect the growth and productivity of citrus both in quality and quantity. Tangerine require 6-9 months of wet season and 3-6 months of dry season, although need enough water in dry season.  This research aims to study the effect of extreme climate change with high rainfall on phenology, productivity and quality of Tangerine in Banyuwangi, Jember and Lumajang. This Research was conducted at Tangerine center from 2005 until 2011 using observation method, the tangerine that use was from 5 years after planted until 12 years after planted. The Result showed that high precipitation occurred in 2010 (without dry season) affect the phenology cycle from 1-3 times in a year until 4-6 times in a year, but not become a fruit due high flower drop. It’s cause a decrease in Productivity form 20-30 ton/h until 5-10 ton/h and also a decrease in quality (color, flavor and total dissolved solid). The result also showed that PJTKS system (Integrated Management for Healthy Tangerine) can prevent a decrease in Tangerine Productivity (10-12 ton/h). This Research also obtained that dry land and sandy land has potential for cultivation of tangerine that originally grown in paddy field.
Pertumbuhan Bibit Kelapa Sawit (Elais guineensis) pada Beberapa Waktu dan Arah Aplikasi Boron (B) dan Silikon (Si) Melalui Daun Kaloko, Ageng; Susila, Eka Tarwaca; Dewa, Didik Indra
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 3, No 1 (2015)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2015.039.52-59

Abstract

Study entitled Growth and Drought Resistance Seed Oil Palm (Elaeis guineensis) in Multiple Time and Direction Applications Boron (B) and Silicon (Si) through Leaves aims to study the effect of B and Si on physiological processes and growth of oil palm seedlings experiencing drought stress and get a way and timing of B and Si is effective to reduce the effect of drought on the decline of physiological processes and growth of oil palm seedlings, Has been implemented in the hamlet Bendosari Madurejo village, Prambanan subdistrict, Sleman; Laboratory of Plant Sciences Faculty of Agriculture, Plant Anatomy Laboratory of the Faculty of Biology and Integrated Research and Testing Laboratory (LPPT) Gadjah Mada University Yogyakarta in March to December of 2012. Research using a complete randomized block design (RAKL) factorial 3 x 3 1 to 3 blocks as replications. The first factor is the way fertilization, the second factor is the time of fertilization and added a comparison (control) without any fertilization treatment. The data analyzed were obtained using Varian Analysis (ANOVA) at the level of 5%, and followed by a test of least significant difference LSD. The results showed that the uptake and increased significantly with the application and the leaves by spraying in the morning, afternoon and evening through the direction of the bottom surface, the top and bottom of leaves. However, absorption of Si is only able to increase if the source of Si fertilizer applied by spraying the leaves through a downward direction on the surface of leaves in the evening. Oil palm seedlings can be improved resistance to drought stress with an indication of the form of increasing scores lignin and suberin in roots network as well as the size of the diameter of the rod when compared with control through the application of fertilizer source of B and Si on the leaves by spraying in the morning, afternoon and evening through direction of the bottom surface, the top and bottom of leaves.
Pengaruh Pupuk NPK Pelet dari Kotoran Ayam terhadap Pertumbuhan dan Hasil Tanaman Kedelai (Glycine max l.) di Tanah Regosol Murselindo, Anggi Aprian
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 2, No 2 (2014)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2014.026.74-80

Abstract

The research was conducted to determine the appropiate dose of NPK chicken manure pellets to increase the growth and yield of soybean crops in the regosol soil. The method of this research was used experimental research with single factor which is arranged in Completaly Randomized Design (CRD). The treatments were 50 kg/h Ure + SP-36 150 g/h + KCI 100 kg/h (KO), NPK of chicken manure pellets 500 kg/h (K1), NPK of chiken manure pellets 1tons/h (K2), NPK of chicken manure pellets 1.5 ton/h (K3) NPK of chicken manure pellets 2 tons/h (K4), NPK chicken manure pellets of 2,5 tons/h (K5). The results of this research showed that NPK fertilization with chicken manure pellets can replace urea fertilizer recommendation simultaneously Multitusting as much as 80% SP36 53,3% and KC160% in soybean cultivation on Regosol soil and a dose of 500 kg/h NPK chicken manure pellets was more efective to growth and yield of soybean.
Pertumbuhan Padi Varietas Ciherang Setelah Diinokulasi dengan Azospirillum Mutan Multifungsi Listanto, Edy; Riyanti, Eny Ida
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 4, No 2 (2016)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2016.057.58-64

Abstract

Modern agriculture is very closely related to the application of fertilizer to induce plants grow. The application of bio-fertilizers is expected to reduce the negative impact of chemical fertilizers. The purpose of this study was to determine the effect of multi-functional Azospirillum N2 fixation, P solubility and IAA production on the growth of Ciherang rice in pot experiment in greenhouse BB Biogen. The experiment treatment were 3 types of inoculation (non-inoculation, inoculation using wildtype Aj Bandung 6.4.1.2 and the mutant isolate of AJM 3.7.1.14 ), and 4 levels of fertilizer application (non-fertilization, a quarter dose, a half dose, and the real dose of fertilization on rice in lowland). The Azospirillum isolates were used wildtype isolate Aj Bandung 6.4.1.2 and mutant isolate AJM 3.7.1.14 that was isolated and mutated using ethyl methanesulfonate (EMS) in BB Biogen. Seeds of Ciherang rice were inoculated using Azospirillum at cell density 106 cell/ml in different seedling tray. After 14 days, the seedlings were transferred to planting pots which consist of 3 plants per pot. Parameters observed were plant height, number of tillers, number of panicles per hill, wet and dry weight of panicles per hill, weight of 100 seeds, N and P content of the stover. The results showed that both wild-Azospirillum and mutant inoculum had no effect on the vegetative growth of Ciherang, but showed significant effect on the number of panicle per hill, grain weight per hill and dry weight of seeds per panicle. The use of Azospirillum and N fertilizer combination affected the growth and rice yields, also reduced chemical fertilizer application.
Kandungan Senyawa Saponin pada Daun, Batang dan Umbi Tanaman Binahong (Anredera cordifolia (Ten) Steenis) Hasbullah, Umar Hafidz Asy’ari
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 4, No 1 (2016)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2016.052.20-24

Abstract

Saponin is one of the bioactive compounds present in plants. Saponin has the benefit of human health. Indonesian has been used binahong (Anredera cordifolia (Ten) Steenis) to medicine. However, empirical evidence regarding the content of saponin in binahong not been revealed. This study aims to determine the qualitative and quantitative content of saponins in plants binahong. The results showed that base on Tin Layer Chromatography (TLC) analysis, saponin content in the leaves, stems and tubers binahong both young and old were positive. Quantification results the young leaves, old leaves, young stems, old stems, young tubers and old tubers: 1.37ìg/mg, 2.36ìg/mg, 1.89ìg/mg, 1.2ìg/mg, 1.55ìg/mg and 1.35ìg/mg respectively. 
Keragaan Vegetatif Dan Generatif Beberapa Varietas Tanaman Padi ( Oryza Sativa L. ) Terhadap Cekaman Kekeringan Pada Fase Pertumbuhan Yang Berbeda Hariyono, Hariyono
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 2, No 1 (2014)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2014.019.20-27

Abstract

The research was conducted to study the effects of drought stress conditions on the performance of vegetative and generative of various rice varieties on the different growth stages. The research was performed at field trial of Faculty of Agriculture, Muhammadiyah University of Yogyakarta, Kasihan Bantul, from March to June 2010. The research was designed using a factorial experiment that arranged in Completely Randomized Design 4 x 5 with three replications. The first factor was the varieties of rice i.e. IR 64, Menthik, Cisadane and Dodokan. The second factor was the period of drought stress at the difference plant stage, i.e at the vegetative period, booting period, heading period, grain filling period, and without drought stress or control.The results showed that Cisadane varieties had a higher tolerance to the drought stress than to all varieties. Moreover, the plant treated on drought stress at vegetative period had lower grain number per hill than the other drought stress period.
Substitusi Medium Sintetik dengan Pupuk Daun, Air Kelapa dan Ekstrak Nabati pada Subkultur Anggrek Cattleya pastoral Innocence secara In Vitro Handayani, Etty; Isnawan, Bambang Heri
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 2, No 2 (2014)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2014.031.115-124

Abstract

A research was perfomed to find the proper of coconut water and natural ekstracts combined with Hyponex medium that compared with Vacin & Went medium. This research has been done at Tissue Culture Laboratory, Agricultural Faculty, Universitas Muhammadiyah Yogyakarta. The method of this research was arranged in Randomized Complete Design with 9 treatments and 8 replications. The treatments were VW + NAA 0,5 ppm + BAP 3 ppm, green Hyponex 3 g/l, green Hyponex 3 g/l + bean sprouts 150 g/l, green Hyponex 3 g/l + tomatoes 150 ml/l, green Hyponex 3 g/l + avocado 150 g/l, red Hyponex 3 g/l, red Hyponex 3 g/l + bean sprouts 150 g/l, red Hyponex 3 g/l + tomatoes 150 ml/l, red Hyponex 3 g/l + avocado 150 g/l. The each of Hyponex mediums were given with bananas 150 g/l and coconut water 150 ml/l. The result of this research showed that Hyponex mediums combined with natural ekstract was not signicicantly with Vacin & Went medium to high and shoot growth. Red Hyponex medium 3 g/l combined bananas 150 g/l and coconut water 150 ml/l resulted the best high, leaf and shoot in tissue culture Cattleya pastoral innocence orchid.
Planta Tropika: Jurnal Agrosains (Journal of Agro Science) Vol. 5 No. 2 Manager, Journal
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 5, No 2 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v5i2.3161

Abstract

Planta Tropika: Jurnal Agrosains (Journal of Agro Science) Vol. 4 No. 2 tropika, planta
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 4, No 2 (2016)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

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