cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kab. bantul,
Daerah istimewa yogyakarta
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
 32   33   34   35   36 
Efektivitas Penggunaan Jenis Pelapis Terhadap Kualitas Dan Masa Simpan Buah Mangga (Mangifera indica L.) Varietas Gadung Klon 21 Muhammad Chabib IS.
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.v1i2.3117

Abstract

The objective of the research is to determine the effect of fruit maturity and surface coating material on storagelife and quality of fruit. The research has carried out at Situbondo and Polytechnic of Jember, since May to September 2005. The design used in this research was Factorial Completely Randomized with three replications. The first factor was fruit maturity i.e.:  105,  110, and 115 days after full bloom (dafb). The second factor was the kind of surface coating materials i.e.: bee wax, palm oil, and glutinous rice starch. The research datas were variance analysed and the significance among treatment mean values were determined by Least Significant  Difference (LSD)  at the p 0.05 level. The result showed that maturity influenced: the carbon dioxide release at 7,  8, and 9 days,  the ethylene release at 9 days, weight loss, total soluble solids and sensory. There were interaction effects of maturity and coating material on total acid, reducing sugars, ascorbic acid, and storage life.
Whitefly Infestation and Economic Comparison of Two Different Pest Control Methods on Soybean Production Fitrah Murgianto; Purnama Hidayat
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.2017.071.110-115

Abstract

Insecticide application is a common practice done by farmers to control the whitefly Bemisia tabaci. While the use of insecticide can suppress the whitefly population, the cost of soybean production is also increased. The objective of this research was to compare the whitefly infestation and economic of two whitefly control methods on soybean production.Two sets of experiments were done, one set with insecticide application and another one without insecticide application. Ten soybean cultivars were used in each set of experiment with completely randomized design and three replications.The whitefly infestation was observed weekly on sample plants on each plot. The benefit and R/C ratio were calculated based on revenue and total costs of soybean production. The average whitefly (egg and nymphs) population on the plots with insecticide application was 4.95 for egg and 5.72 for nymph per leaf, which was lower than those without insecticide application 11.76 for egg and 10.86 for nymph per leaf. The average benefit and R/C ratio for the plots with insecticide application were IDR 9,654,507/ha and 1.51 respectively, while the average benefit and R/C ratio for the plots without insecticide application were IDR 8,706,299/ha and 1.55 respectively. The study can be concluded thatgrowing soybean without insecticide treatmentwas more efficient than growing soybean with insecticide applications
Acceleration of Echinacea purpurea (L.) Moench Shoot Growth by Benzyl Adenine and Indole Butyric Acid Addition Nur Rahmawati Wijaya; Heru Sudrajad
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 7, No 2 (2019)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2019.101.117-124

Abstract

Echinacea (Echinacea purpurea (L.) Moench) is a medicinal plant known to boost the immune system. Propagation is necessary to increase production. One of the methods of propagation in tissue culture. This research was conducted to understand the most suitable concentration of plant growth regulators. The treatment was given a combination of Benzyl Adenine (BA) and Indole Butyric Acid (IBA) with BA concentration of 1 ppm, 2 ppm, 3 ppm and 4 ppm while the IBA concentration used was 1 ppm and 2 ppm. The next step was subculture by using the combination among IBA 0 ppm, 0.5 ppm, 0.75 ppm and BAP 0 ppm, 0.5 ppm, 0.75 ppm of BAP. The result showed that the most shoots produced by the combination treatment of BA 2 ppm and IBA 1 ppm while the highest shoot and leaf number is best produced in treatment BA 1 ppm and IBA 2 ppm. The largest number of shoots was shown by treatment BA 2 ppm and IBA 1 ppm. This study can be concluded that BA 1 ppm and IBA 2 ppm, and BA 2 ppm and IBA 1 ppm gave the best treatment for shoot growth and control for root induction.
Uji Daya Hasil Varietas Lokal Tembakau Bondowoso Sri Yulaikah; Andi Muhammad Amir
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.2016.050.7-13

Abstract

Bondowoso tobacco is a type of  sliced tobacco that is developed in eleven district i.e. Bondowoso, Tenggarang, Tegal Ampel, Pakem, Curahdami, Maesan, Pujer, Wonosari, Binakal, Taman Krocok and Wringin. In order to fulfill the improvement of new variety program, yield evaluations is a step that should be done. The aims of the experiment were to examine the yield of local varieties, the superior traits and then choose the best variety. The experiment was conducted on March to September 2009 in tobacco producing areas. The experiment tested 6 local  varieties i.e. Sam1, Se2, Mar3, Sam4, Sam5 and Sam6. Each of them was plant with three replicates. The experiment design was  randomized complete block design (RCBD). Each plot consisted of 200 plants. The result showed that three varieties of which relatively had the same superiority on characters: yield potensial, quality index, plant index, nicotine content and disease tolerance. The selected varieties were Sam1, Sam5 dan Sam6, with yield potensial each acession i.e: 1.682 kg/ha, 1.399 kg/ha and 1.282 kg/ ha.
The Application of Filter Cake Compost to Improve The Efficiency of Inorganic Fertilizer in Upland Sugarcane (Saccharum officinarum L.) Cultivation Dharend Lingga Wibisana; Purwono Purwono; Sudirman Yahya
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 8, No 2 (2020)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2020.119.93-102

Abstract

The production of sugarcane in 2018 decreased due to the change in the cultivation method from lowland to upland. This research aimed to study the responses of growth and yield of two sugarcane varieties to the application of filter cake compost and inorganic fertilizer in upland sugarcane cultivation. This experiment was arranged in a split-split plot design consisting of three-factors, which were sugarcane varieties, the levels of filter cake compost, and the rates of inorganic fertilizer, assigned to the main plot, sub-plot, and sub-sub plots, respectively. The two sugarcane varieties were PS 881 and PS 862. The three levels of filter cake compost were 0, 5, 10 tons ha-1, and the four rates of inorganic fertilizers (percent of recommended dosage) were 25%, 50%, 75%, and 100%. The results showed that the growth and yield of PS 862 was better than that of PS 881, shown in the plant height, stem diameter, number of stems, and the length of internodes. The use of filter cake compost at a dose of 5 tons ha-1 was more efficient, and it could provide an efficiency of 0.097 tons per kg of cane at a dose of 76.76% inorganic fertilizer. Yet, it cannot reduce the use of inorganic fertilizer in producing sugarcane yield.
Pengaruh Dosis Pupuk Majemuk NPK + Zn terhadap Pertumbuhan, Produksi, dan Serapan Zn Padi Sawah di Inceptisol, Kebumen Latifah Arifiyatun; Azwar Maas; Sri Nuryani Hidayah Utami
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.2016.062.101-106

Abstract

The study was conducted to identify the optimum Zn formula that could be added to dose 300 kg/ha NPK fertilizer with the additional 200 kg/ha urea, organic fertilizer 500 kg/ha and its implication on Zn nutrient uptake and paddy production.  Generally, paddy cultivation practices applied macro-synthetic fertilizers without returning crop residues and organic materials as a soil conditioner as well as to provide micronutrients. In addition, the accumulation of P in the soil is pressing the availability of Zn, at neutral pH to alkaline Zn is not available and relatively mobile, when the soil is waterlogged Zn would be settled, and usually Zn is never be fertilized. Moreover, the land is intensively used for the manufacture of bricks and tiles indicate experiencing Zn depletion will cause symptoms on leaves of rice plants reduced toughness, pale green after 2-4 days later on flooded would be krotik and dried up. The research of fertilization innovation on micronutrients were conducted on July 2014 – January 2015 in Green House Agriculture Faculty, the University of Gajah Mada where the planting media of this research was Inceptisol which taken from Kebumen. The treatment were 10 treatments with a dose of NPK Plus Zn 0.25% Zn content ranges from 0% to 2% Zn repeated 3 times using a complete randomized design (CRD). The results showed that the land was given an additional 1.75% Zn has provided the highest Zn content of 0.16 mg/kg with a content of Trubus tissue's Zn 68,38 mg/kg. Whereas in the control treatment had the lowest score is 0.07 mg/kg with Zn content of trubus tissue was 47.85 mg/kg. Not seen an increase in yield due to the additional provision of 2% Zn to the dose of NPK fertilizer plus Zn were given, but the tendency dose of 1.75% Zn gives the highest production yield with and extrapolated enough to the total population reached 9.96 tons/ha while in control was only 3.45 tons/ha.
Back Matter Planta Tropika: Jurnal Agrosains (Journal of Agro Science) Vol. 8 No. 2 Manager, Journal
PLANTA TROPIKA Vol 8, No 2 (2020)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v8i2.11296

Abstract

Contribution of Rhizobium–Mycorrhiza–Merapi-indigenous Rhizobacteria Association on Growth and Yield of Three Cultivars Soybean Cultivated on Coastal Sandy Soil Linda Kusumastuti; Agung Astuti; Sarjiyah Sarjiyah
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.2017.066.7-14

Abstract

A study was conducted to examine the effect of inoculum association between Rhizobium sp., mycorrhizae and Merapi-indigenous Rhizobacteria on the growth and yield of 3 soybean cultivars, and to determine the best inoculum and cultivars for soybean cultivation on coastal sandy soil. The study was conducted in the Agro-biotechnology and Research Laboratory and experimental station of Faculty of Agriculture, Universitas Muhammadiyah Yogyakarta during the period of September 2015 to June 2016. Experiments were conducted by using coastal sandy soil as planting medium in polybags by employing 4 x 3 factorial experiments, arranged in completely randomised design, and placed under the field condition. The first factor used was inoculation treatment consisted of 4 combination of inoculums: (1) Rhizobium sp. – mycorrhizae, (2) Rhizobium sp. – Merapi-indigenous Rhizobacteria, (3) Rhizobium sp. – mycorrhizae – Merapi-indigenous Rhizobacteria, and (4) without inoculation. The second factor was soybean cultivars consisted of 3 varieties: (1) Grobogan, (2) Detam-1, and (3) Petek. Observation was carried out on nodulation, mycorrhizal effect, Rhizobacterial population dynamics, plant growth and yield. The results showed that Rhizobium sp.–mycorrhizae inoculated on Petek increased root growth, leaf area and yield (5,97 tonnes/ha). Rhizobium sp.–mycorrhizae inoculation only increased diameter of nodules. It was also observed that the best soybean cultivar for coastal sandy soil was Petek.
Methane Emissions and Rice Yield in Rainfed Bed System (Surjan) as Affected by Manure and Zeolite Treatment Anggri Hervani; Helena Lina Susilawati; Anicetus Wihardjaka
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 7, No 2 (2019)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2019.105.141-146

Abstract

Rainfed area as one of rice production areas is facing drought due to climate change. Management of rainfed area is needed due to its contribution, in addition to the production of rice, in producing methane as a contributor to greenhouse gas emission. This research aimed to investigate the methane emission status and yield from rainfed rice system with manure and zeolite treatment on the bed system (surjan). The doses of manure were 5, 15 and 30 tons/ha and the zeolite was 1 and 2.5 tons/ha. The result showed that all treatment had no significant effect on daily methane fluxe and grain yield in surjan system. However, the combination of manure at 15 tons/ha with zeolite at 1 ton/ha promoted higher methane emissions (63.43 kg CH4/ha/season). In addition, the combination treatment of manure at 5 tons/ha with zeolite at 2.5 tons/ha contributed to obtain higher grain yield (6.9 tons/ha).
Identifikasi dan Karakterisasi Isolat Rhizobacteri Osmotoleran dari Merapi Agung Astuti
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.2016.054.32-36

Abstract

Rhizobacteri Merapi isolates have been detected, and MA, MB, and MD isolates could withstand osmotic stress up to 2.75 M NaCl. MD isolate was stronger in dissolving phospate than MA and MB isolates, but MA and MB isolates had much stronger nitrification capability and could perform ammonification than MD isolate. This research studied about Rhizobacteri Merapi isolates as identification, as well as their characterization. The results show that there is a difference in colonial characteristic of four Rhizobacteri Merapi isolates where MB and MC isolates (white circular-entire shape), except for MA isolate (curled-white with undulate edge) and MC isolate (ramose-yellow with filamentous edge) and also that MD isolate have the largest diameter (1,5 mm). Cell characteristics, however, were the same, gram-negative and were rod shaped, except for MD isolate (coccus). All showed aerob and fermentative characteristics, although MD isolate was able to very strongly hydrolyze starchs. The growth type is fast growing which reach log phase for after 48 hours and then the number of colony decrease.

Page 34 of 43 | Total Record : 427

 32   33   34   35   36 

Filter by Year

2005 2025


Reset
Filter By Issues
All Issue Vol. 13 No. 1 (2025) Vol 12, No 2 (2024) Vol 12, No 1 (2024) Vol 11, No 2 (2023) Vol 11, No 1 (2023) Vol 10, No 2 (2022) Vol. 10 No. 2 (2022) Vol 10, No 1 (2022) Vol 9, No 2 (2021) Vol 9, No 1 (2021) Vol 8, No 2 (2020) Vol 8, No 1 (2020) Vol 7, No 2 (2019) Vol 7, No 1 (2019) Vol 6, No 2 (2018) Vol 6, No 2 (2018) Vol 6, No 1 (2018) Vol 5, No 2 (2017) Vol 5, No 2 (2017) Vol 5, No 1 (2017) Vol 5, No 1 (2017) Vol 4, No 2 (2016) Vol 4, No 2 (2016) Vol 4, No 1 (2016) Vol 4, No 1 (2016) Vol 3, No 2 (2015) Vol 3, No 2 (2015) Vol 3, No 1 (2015) Vol 3, No 1 (2015) Vol 2, No 2 (2014) Vol 2, No 2 (2014) Vol 2, No 1 (2014) Vol 2, No 1 (2014) Vol 1, No 2 (2005) Vol 1, No 1 (2005) More Issue