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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 Karakter Morfo-fisiologis Sumber Daya Genetik Padi Berumur Genjah Setyowati, Mamik; Hidayatun, Nurul; Sutoro, Sutoro; Kurniawan, Hakim
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.2014.025.66-73

Abstract

Rice varieties with short maturity and high productivity can be achieved when there is available genetic resources in a sufficient level of variability. Morphological characters, such as leaf thickness and crop growth rate, could affect in crop productivity. Evaluation of seed germination rate, crop growth rate,  and their efficiency used for nitrogen have been done on 25 accessions of rice. Seed germination rate of B11283-6C-PN-5-MR-34-1-1-3, Lariang, B11742-RS-2-3-MR-34-1-2-3 reached 1,0-1,3 g/hill/day during seed initiation, while Dodokan and Silugonggo reached 0.7-0.8 g/hill/day. Danau Atas, B.11283-6C-PN-5-MR-2-3-Sl-1-2-1-1, B11742-RS-2-3-MR-34-1-2-3 and B11742-RS-2-3-MR-34-1-4-1 lines show good perfomance, moreover B11742-RS-2-3-MR-34-1-1-3, B11742-RS-2-3-MR-34-1-1-4 and B11742-RS-2-3-MR-34-1-1-4 lines produced grain yield higher than Silugonggo and Dodokan varieties. Those lines could be harvested at about 96 days after planting.
Effects of NP-SR Fertilizer Composition and Water Logging on Soil Chemical Properties and N Fertilizer Efficiency in Paddy Field Sari, Tiara Kartika; Rif’an, Muhammad; Sakhidin, Sakhidin
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 9, No 1 (2021)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v9i1.6434

Abstract

Rice is the primary food commodity in Indonesia. To increase the rice production, urea fertilizer has been excessively used, specifically on marginal land. However, it has no desired effect on the plant’s Nitrogen uptake due to volatilization. Previous studies suggest the use of zeolite to be mixed with urea to reduce the volatilization rate. This study aimed to determine the effect of six NP-SR (Nitrogen Phosphorus Slow Release) fertilizer compositions (without NP-SR; 20.69-0; 19.7-5; 17.27-10; 15.9-15; and 18.94-20) on soil chemical properties, nitrogen efficiency, and paddy rice yield on Ultisols at three waterlogging levels (0.5 cm, 3 cm, and 5 cm). The study was an experiment arranged in a Randomized Complete Block Design (RCBD) consisting of two factors, which were waterlogging levels and NP-SR fertilizer compositions. The results showed that waterlogging treatments significantly affected soil chemical properties in the initial vegetative and harvest phases. It can be concluded that the treatment of flooding (up to 3 cm) and fertilizer (NP-SR of 15.90-15) application could significantly reduce the volatilization rate, increase the efficiency of N fertilizer, and increase rice yield.
Asap Cair Kayu Sengon sebagai Chelating Agents Logam Timbal (Pb) pada Model Menggunakan Biji Kedelai (Glycine max) A'yuni, Nur Rohmah Lufti; Darmadji, Purnama; Pranoto, Yudi
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 5, No 1 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2017.070.42-51

Abstract

Soybean (Glycine max) is one of the plants that strongly accumulate heavy metals. Therefore, soybeans need to be given a pre-treatment so that no accumulation of heavy metals in the human body. The aim of this study was to determine the influence of Paraserianthes falcataria (L.) Nielsen wood liquid smoke concentration to the reduction of Pb metal in soybean seeds and determine the influence of liquid smoke compounds to the reduction of Pb metal in soybean seeds. The study used a completely randomized design with three replications. Factor to be examined was the effect of liquid smoke concentration to the reduction of Pb metal in soybean seeds with variations 0; 12.5; 25; 50 and 100 % by 25 ml. Parameters measured were Pb metal reduction, the changes of acid, phenol, carbonyl and pH liquid smoke after chelation and Pb metal reduction because of liquid smoke compounds. Model of Pb metal was made from soybean seeds that have been contaminated by Pb (NO3) 2 with the 2 ppm concentration. The results showed that the greater the concentration of liquid smoke, the greater the reduction of Pb metal. The liquid smoke with the 100% concentration gives the highest reduction of Pb metal in soybean seeds 59.12%. Carbonyl compounds of liquid smoke give the highest reduction of Pb metal in soybeans seeds 46.42  %, followed by acetic acid 43.97 % and phenol 41.55 %.
Planta Tropika: Jurnal Agrosains (Journal of Agro Science) Vol. 5 No. 1 tropika, planta
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 5, No 1 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v5i1.3000

Abstract

Kajian Aktivitas Infeksi Rhizobium sp. Indigenus Pada Kerandang (Pueraria phaseoloides) Triwahyuningsih, Nike; Pristiwantoro, Eko Cahyo; Utari, Lilik
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 1, No 2 (2005)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v1i2.3121

Abstract

Kudzu, a kind  of  legume   cover  crops  (LCC),   plays  important   roles  in  soil and  water conservation. It is effective  for  inhibiting  erotion,  compaction  and leaching  of nutrients,  as well as to suppress weeds.  Plants growing with legume  ground covers usually show  better nutrition,   growth and yield. Recently,  this cover crops have been widely  used to prevent  the negative effects  and to improve  soil physical  and nutritional  characteristics. As a legume,  bacterial  inoculation   is to enhance  the infection and nodulation activity. A research  to observe  the role of indigenous  Rhizobium   on infection and nodulation  activity of kudzu was carried  out in September  till December 2004.  The research  was done in Regosol  volcanic  soil in Tlatar  Village  of Sawangan in Magelang district of Central  Java. A pot experiment   was arranged in 4x2 factorial    completely   randomized   design  which  was repeated   three times.   The  seedling   innoculation   with  root  nodules  endophytic   bacteria   was  to increase  nodulation  and to enhance  Kudzu  plant growth.   The seedlings  were inoculated  with  1, 2 and 3 ml/pot of grinded  root nodules  of wild plants  containing  endophytic  Rhizobium  sp.  The wild kudzu  plants were taken  from  coastal  sandy  land  of southern   Yogyakarta.   All treated seedlings were planted  in a sterilized  medium  to be compared  to the unsterilized  one in order to examine  the role of indigenous  bacterias. Observation  on bacterial infection activity, nodulation,  and plant growth were taken  at week  4, 6, 8, and  10. All the  datas  were  variance   analyzed   and the  treatments average  were  tested  with 5% level  of Duncan's multiple range test. The  results  showed  that  application   of 2 ml/pot  of innoculum significantly   increased  the infection  activity, nodulation  and plant growth. Sterilized  soil decreased  the infection  activity.   Since the innoculation  of endophytic Rhizobium  sp.  in unsterilized  soil significantly   increased the infection actifity,  nodulation  and plant growth,  so the indigenous  Rhizobium sp. in rhizhosfer  was needed to sinergisticaly  worked  well with inoculum  to increase  infection  activities   and root nodulation.
The Effects of Various Essential Oils as Antibacterial Agents on Fresh-Cut Apples cv. ‘Manalagi’ Utama, Nafi Ananda
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.2018.087.106-115

Abstract

The fast-paced lifestyle of modern consumers warrants the need for a quick and minimally processed food. For fresh products, this means healthy fresh food, convenient, and microbiologically safe food items produced with environmentally friendly methods. In this research, antimicrobial effects of carboxymethyl cellulose based-edible film containing different concentrations of essential oils (0.7 % cinnamon, 0.7 % lemongrass, 3 % lemon, and 0.1 % betel, w/v) as antibacterial agents on fresh-cut apples cv. Manalagi were studied. Measurements of weight loss, total titratable acidity (TTA), reducing sugar, microbial growth and sensory quality were determined at 0, 3, 6, 9, 12 and 15 days of storage (4 ± 1 °C, 75 ± 10 % RH). The results of the research showed that the application of 0.7% lemongrass oil on 1 % CMC gave the best result in inhibiting the bacterial growth and prolong the storage life of fresh-cut apples cv. Manalagi. The incorporation of 0.7 % (w/v) lemongrass and lemon 3 % (w/v) in coating formulation maintained the sensory scores (aroma and appearance) of fresh-cut apples during nine days of storage. 
Effects of Combination of Inorganic and Organic Fertilizers Application on Morphology and Physiology of Immature Oil Palm Zahrul Fuady; Halus Satriawan; Agusni Agusni
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.2019.096.73-81

Abstract

Oil palm requires nutrients both macro and micro nutrients for its growth and development processes. This study aimed to study the morphological and physiological responses of immature oil palm plantations at 1 year of planting to the provision of organic fertilizer and micro fertilizers as a complement to inorganic fertilizers.The research was arranged in a Randomized Completely Block Design (RCBD). The treatment applied consisted of 7 treatments, namely one control treatment (basic fertilizer) and six treatments from a combination of type and dose of fertilizer, consisting of single fertilizer, compound fertilizer, organic fertilizer and micro fertilizer. Based on the results, single and compound fertilizers accompanied by micro fertilizers (M1a, M1b) had a significant effect on plant height showing 13.78%, 27.55%, 25.11%, and 54.18% higher than others andon length and width of the 9th midrib reaching 7.47%, 22.40% and 51.04% better than others. The best response of growth of stem circumference at 6 MAT was observed in PO1 reaching 112.43%, better than M1a (111.96%)and M1b (109.20), while the lowest was observed in PO0 (97.84%). Meanwhile, chlorophyll and stomata were implied by a package of compound fertilizer and single fertilizer. The highest leaf chlorophyll content was in the M0a fertilizer treatment, while the highest stomata level was in the M1a treatment.
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.
Effects of Chromolaena Odorata Compost on Soil and Nutrient Uptake of Lettuce (Lactuca sativa) Alima Maolidea Suri; Prapto Yudono
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.2020.111.33-38

Abstract

The use of synthetic inorganic fertilizers containing chemical compounds cause soil quality to decrease. Chromolaena odorata are potential weeds used as a source of organic matter, which can be used as compost. This research aimed to determine the effect of Chromolaena odorata compost on the soil and nutrient uptake of lettuce. The research was conducted using a single factor experimental method arranged in a Randomized Complete Block Design. The treatments tested were the applications of C. odorata weed compost at various doses (222 grams/pot, 444 grams/pot, and 666 grams/pot) with control treatments of 200 ml/pot NPK Phonska (15:15:15), 320 grams/pot cow manure, and without fertilization. The experiment consisted of three blocks with three samples and three units of sample plants within each treatment. The results showed that the application of C. odorata weed compost significantly improved nutrition and nutrient uptake of lettuce. The dose of 444 grams/pot C. odorata weed compost was the best dose to increase soil quality and nutrient uptake of lettuce.
Kajian Hydrocooling dan Tempat Penyimpanan untuk Mempertahankan Kualitas Cabai Gendot (Capsicum annum var. Abbreviata) Sukuriyati Suliso Dewi
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.2015.035.16-23

Abstract

The purpose of this study was to understand the effect of hydrocooling and storage on the quality and shelf life of gendot Chili. This study was conducted in Post Harvest Laboratory and Chemistry, Faculty of Agriculture, Universitas Muhammadiyah Yogyakarta. Research was arranged in a completely randomized design (CRD). The first factor is Hydrocooling treatment which consists with and without hydrocooling. The second factor is storage which consist three kind of storage, there are ice box, cooler, and refrigerator. Chili was kept in the storage for 20 days. Parameters of observation were weight losses, damage percentage, fruit hardness, moisture content, vitamin C, reducing sugar, microbiological and organoleptic test. Result showed that hydrocooling treatment was not signicantly effect to the quality of chili. However, hydrocooling treatment is affecting to moisture, Vitamin C, and reducing sugar contents. Storage rooms was not significantly effecting to the quality of chili. There is any interactions between hydrocooling treatment and storage on moisture content, Vitamin C contents, and reducing sugar content.

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