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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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Evaluasi Ruang Terbuka Hijau di Kota Pekanbaru Lis Noer Aini; Bambang Heri Isnawan; Endri Ridwan Saleh
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.2015.038.41-51

Abstract

The research was conducted to evaluate the availability of open green area in Pekanbaru  and to make the landscape model of green open area. This evaluation was needed to improve the functional and aesthetic value of green open area in Pakanbaru. The green areas were the main street of ring road, city park and forest. The research was carried out by using implementation methods of technical survey by observation, collective secondary and primary data. Election area was elected by purposive way and respondent method election done non-probability sampling technique that taking sample research by non-random way by 72 numbers of respondent. Data was analyzed by descriptive and spacial method, so continued by structuring of green open space to improve of develop functional value and aesthetic value in Pekanbaru. The research showed that the Pekanbaru City has 4,35% of green space in the shape of protecting areas, lake tours, and the grave till Pekanbaru City does not have wide green open space public as mandated by law no 26 year 2007 at least 20% from the areas spatial planning Pekanbaru, namely 49% of the area of Pekanbaru City. Planning model green lane road on Jl. Sukarno Hatta, Jl. Subrantas, Jl. Riau, Jl. Hang Tuah, Jl. Imam Munandar and Jl. Tuanku Tambusai based on the needs of the road to plant shade, windbreak and absorbing pollution. Planning Model urban forest planning was urban forest recreation by combining soft elements and hard elements. Planning model park junction Jl. Subrantas based on plant shade needs and space for the interaction for market users.
Planta Tropika: Jurnal Agrosains (Journal of Agro Science) Vol. 3 No. 1 planta tropika
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.v3i1.2964

Abstract

Pengaruh Pemberian Zeolite dan Dosis Pupuk Nitrogen Terhadap Pertumbuhan Vegetatif Jagung (Zea mays, L.) di Media Pasir Pantai Gunawan Budiyanto; Mulyono Mulyono; Fiyoni Dwi Setyawan
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 1, No 1 (2005)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v1i1.3111

Abstract

A research to study the effects of Zeolite and nitrogen fertilizer application on vegetative growth of maize crop in coastal sandy soil was conducted on the research field of Agriculture Faculty, Muhammadiyah University of Yogyakarta at Tamantirto, Bantul District of Yogyakarta during October until February, 2003. This research was aimed on the study of Zeolite application in order to enhance the nitrogen uptake in the coastal sandy soil, and its effects on vegetative growth of CP I variety of maize. The pot experiment was arranged in 7 x 3 factorial completely randomized design, with 4 replications. The first factor was Zeolite dosage consisted of 7 levels, i.e:  0, 3, 4, 5, 6, 7, and 8 %; and the second one was 3 levels nitrogen fertilizer dosage which consisted of: 75, 110, and 145 kg/ ha. The nitrogen fertilizer was applied on the medium mixed with Zeolite granules. Observations on plant height, stem diemeter, leaves number, plant fresh and dry weight were done during the vegetative growth of maize. The results showed that Zeolite application significantly enhanced the vegetative growth of CPI maize. The 5,2  - 5,6  % Zeolite was optimum to gave the maximum growth of maize crop. Nitrogen fertilizer application was also significantly increased the plant height and biomass weight, and the 145 kg/ha was the optimum dosage. There was no interaction between Zeolite and nitrogen fertilizer application in order to affected the maize growth.
Perbedaan Sifat Fisik, Kimia dan Sensoris Tepung Umbi Suweg (Amorphophallus campamulatus BI) pada Fase Dorman dan Vegetatif Umar Hafidz Asy’ari Hasbullah; Rini Umiyati
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.2017.066.70-78

Abstract

This study aims to determine ofdifferences in physical, chemical and sensory properties of suweg flour from the dormant and vegetative phases. Physical parameters include yield, edible portion, bulk density, brightness, particle size index, water absorption index and water solubility index. Chemical parameters include the moisture, ash, fat, protein, carbohydrates, starches and sugars reduction. Sensory parameters include hedonic test of color and aroma as well as descriptive test of color and aroma. The results showed that the physical characteristics of flour suweg dormant phase and vegetative phase significantly different at all parameters. Yield, edible portion, bulk density, brightness, particle size index of dorman phase higher than vegetative phase. Chemical characteristics from dormant phase and vegetative phase were significantly different at all parameters, except fat and carbohydrate. Starch contain in dorman phase higher than vegetative phase. But in contrast to the sugar reduction contain. Panellists assess the suweg flour produced from the vegetative phase has a more brown color and smells stronger than the dormant phase so it is less preferred color and aroma. Suweg flour should be selected from the dormant phase. Utilization of flour suweg is recommended for products such as cookies and biscuits that can be grown ingredients to cover the presence of brown and off flavor.
Study on In Vitro Growth of Rubus fraxinifolius Mutant (m1) Resulted from Gamma-Ray Irradiation (60Co) Lily Ismaini; Suluh Normasiwi; Muhammad Imam Surya; Destri Destri
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 6, No 2 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2018.082.70-76

Abstract

Rubus fraxinifolius belonging to the wild raspberry group has not been developed in Indonesia. Mutation breeding using gamma-ray as mutagen which was combined with in vitro culture is one of acceleration effort to obtain superior characteristics of the fruit crops, such as larger fruit size, higher nutrition content, plant with less of spines and fruit storage ability. The R. fraxinifolius seeds were irradiated with different doses of gamma-ray ranging from 0 to 500 Gy using the 60Co (Cobalt). This research aimed to determine in vitro growth of R. fraxinifolius mutant (M1) after irradiation using gamma-ray. The results showed that the highest percentage of seed germination was obtained on the doses of 100 and 200 Gy. Furthermore, the subculture of R. fraxinifolius mutant (M1) on MS medium with the addition of BA showed the different growth on number of shoots, number of leaves, and plantlet height. Moreover, R. fraxinifolius control showed higher value of shoots, number of leaves, and plantlet height at 4 and 8 weeks after subculture compared to R. fraxinifolius mutant. MS medium with the addition of IBA showed that the number of roots of R. fraxinifolius control (5.75) was higher than that of R. fraxinifolius mutant (M1) (4.83).
Formulation of Biscuit Using Yellow Pumpkin Flour and The Addition of Coconut Flour as an Alternative for Complementary Feeding Mauren Gita Miranti; Dwi Kristiastuti; Endah Dwi Kusumasari
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 7, No 1 (2019)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2019.092.41-47

Abstract

Complementary food should be added to the diet of the babies in addition to breast milk from 6 months onward and the food should be sufficient for the baby’s nutrition needs. Complementary feeding using baby biscuit made of yellow pumpkin flour and the addition of coconut flour is an effort to improve nutrition through local food diversification approach. The purpose of this study was to determine the best biscuit formulation and to test the physicochemical properties of the selected formula. This research used completely randomized experimental design consisting of four formulae of yellow pumpkin flour, i.e. 10%, 15%, 20% and 25%. The results of organoleptic tests showed that the best formula of the biscuit as complementary food is 25% yellow pumpkin flour and 12% of coconut flour. Consumption of two servings of biscuits can meet the nutritional adequacy of the babies except calcium. The biscuits can be kept for 92 days 8 hours under open conditions. In addition, the biscuits have good physical properties in terms of water absorption and hardness.
Pengaruh Penggunaan Mulsa Alang-Alang, Kenikir dan Kirinyu terhadap Pertumbuhan dan Hasil Bawang Merah Di Tanah Mediteran pada Musim Penghujan Mulyono Mulyono
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 3, No 2 (2015)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2015.042.73-77

Abstract

The study was held inSimo village, Boyolali, Central Java.The study used field experiments with a single factor that arranged in randomized completely block design.The treatments were control (P0), Alang-alang as mulch (P1), Kirinyu as mulch (P2), and Kenikir as mulch (P3), each treatment was repeated three times.The parameters were plant height, number of leaf, fresh weight of plant, dry weight of plant, number of tuberper hill, weight of tuber per hill, yield, fresh weight and dry weight of weeds. The results showed that mulch grass, kirinyu and kenikir was not significantly affect plant height, leaf number, number of tubers per hill and yield per hectare.Mulching grass, and kenikir kirinyu affected on plant fresh weight, dry weight and plant weight of tubers per hill.Mulching kenikir improved the plant fresh weight, dry weight of plants and weight of tubers per hill.Morover, Alang-alang, Kirinyu, and Kenikir as organic mulch significanly decreased the growth and abundant of weed and improved the growth of shallot plant. Alang-alang was the most highest decreasing the growth of weed.
The Application of Zeolite to Increase Nitrogen Use Efficiency in Corn Vegetative Growth in Coastal Sandy Soils Gunawan Budiyanto
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 8, No 1 (2020)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2020.107.1-6

Abstract

Coastal sandy soil is usually dominated by sand fractions, having no micro pore complex that can bind water and store fertilizer nutrients. The application of zeolite rocks into the root zone of plants growing in sandy soil is expected to reduce nitrogen nutrient leaching.The research was carried out by using the greenhouse experiment method, arranged in a factorial completely randomized design. The first factor was activated zeolite rock doses, consisting of 7 levels, namely 0% (Z0), 1% (Z1), 2% (Z2), 3% (Z3), 4% (Z4), 5% (Z5), and 6% (Z6) per 10 kg of coastal sandy soils as planting media. Meanwhile, the second factor was nitrogen fertilizer doses, consisting of 3 levels, namely 75 kg (N1), 100 kg (N2), and 125 kg (N3) per hectare. The results showed that the application of zeolite rock to the planting media could increase the growth of corn plants fertilized with nitrogen. The best vegetative growth was obtained when 6% zeolite per 10 kg of planting media was applied. The application of 6% zeolite together with 125 kg per hectare N fertilizer resulted in the heaviest fresh plant biomass. The use of zeolite can increase the N-fertilizer uptake efficiency in the vegetative growth of corn plants grown in coastal sand soils.
Weeds Growth in Various Population of Sweet Corn+Peanut Intercropping Dwi Ndaru Sekar Asih; Agus Nugroho Setiawan; Sarjiyah Sarjiyah
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 6, No 1 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2018.077.22-31

Abstract

The existence of weeds on sweet corn crops can lead to competition that reduce the yield. The aim of this research was to obtain the optimum crop proportion of corn-peanut plants in suppressing weed growth but not decrease the yield of sweet corn. The experiment was conducted using a single factor field experimental method arranged in a complete randomized block design with 3 blocks as replication. The treatment was the proportion of sweet corn-peanut population consisting of 3 levels, i.e 1:1, 1:2, 1:3, sweet corn monoculture and peanut monoculture as comparison.The results of this research showed that intercropping of sweet corn+peanut with  population proportion of 1:2 can suppress weed growth in on the 9th week (at harvest) without decreasing sweet corn yield.
Effects of Ascorbic Acids on Post-Harvest Longevity of Chrysantemum Cut Flowers Kurniawan Budiarto
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 7, No 1 (2019)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2019.091.33-40

Abstract

The longer vase life of chrysanthemum cut flower is one of the preferable quality traits in marketing for growers, retailers and consumers.  Several compounds, like ascorbic acid, have been reported to be able to prolong the post-harvest quality and longevity of cut flowers. Thus, the purpose of the study was to assess the ascorbic acid effects in several concentrations (0, 100, 200, and 300 ppm) in extending the fresh life of two chrysanthemum cultivars, i.e. cv. Remix (spray) and Yellow Fiji (standard).  The results showed that the termination of flower freshness was visually characterized by wilting of leaves and florets and the change in floret color (paler).  The supplementation of ascorbic acid solution at the concentrations of 200 and 300 ppm prevented and lengthened leaves and florets turgidity and postponed the wilting up to 2 – 3 days compared to control.  At the same concentrations, the solution also slowed down the degradation rates of chlorophyll content on leaves during vase life periods.

Page 32 of 43 | Total Record : 427

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