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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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Effects of Planting Pattern on The Performance of Soybean Genotypes Sundari, Titik; Pratiwi, Herdina
PLANTA TROPIKA Vol 6, No 1 (2018)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2018.079.39-48

Abstract

Plant population is one of key factors in crops yield. The determination of optimum population per area unit needs to be accommodated through the planting space arrangement. This study aimed to know the performance of some soybean genotypes planted with both single and double row planting pattern. The research was conducted in Kendalpayak Experimental Field, Malang from February to May 2017 arranged in split plot experimental design with three replications. The main plot was planting space consisting of single row (40 cm x 15 cm) and double row (60 cm x 20 cm x 15 cm), while the sub-plot was the soybean genotypes consisting of 12 promising lines (Grob/IT-7-7, Grob/Pander-397-6, Grob/IT-17-1, IBK/Argop-276-3, Grob/Pander-395-2, Grob/Pander-428-1, Grob/IT-7-5, Grob/IT-7-2, Grob/IAC-453-7, IBK/ Grob-296-10, Grob/IT-7-3, and Grob/IT-7-1) and 3 cultivars as comparison (Dena 1, Dena 2, and Grobogan). Each experimental unit was set in an area of 10.8 m2. Observation was performed on variables of plant height, number of fertile nodes, number of pods with three seeds, number of pods with two seeds, number of sterile pods, seeds dry weight, pod shells dry weight, weight of 100 seeds, and yields. The results of the research showed that each genotype performed different response to planting space depending on the characteristic of it. Yield obtained from double row planting space was 4.76% higher than that from single row planting space. There were 8 genotypes (Grob/IT-7-7, Grob/Pander-397-6, Dena 1, Grob/IT-7-5, Grob/IT-7-2, Grob/IAC-453-7, Grob/IT-7-3, and Grob/IT-7-1) which were able to produce seeds 2.0 ton/ha, either planted in single row or double row planting space.
The Resistance of Soybean Genotypes to The Pod Feeding Insects Krisnawati, Ayda; Adie, Mochammad Muchlish
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.2019.093.48-57

Abstract

One of the constraints impeding soybean production in the tropics is yield losses due to the damage by pod feeding insects. The research objective was to identify the resistance of soybean genotypes to the pod feeders. The existence of the pod feeding insects was evaluated on 24 soybean genotypes planted in Ngawi (Indonesia) in 2016. The experiment was arranged in a randomized block design with two environmental conditions. The first environmental condition was plants controlled by insecticide during plant growth, and the second condition was plants controlled by insecticide only up to 45 days after planting (dap). The pod feeding insects included pod sucking bug (Riptortus linearis), pod borer (Etiella zinckenella), and podworm (Helicoverpa sp.). The damage intensity of pod sucking bug at 45 dap of controlled environment reached 60.24%, meanwhile the damage intensity of pod borer and podworm were 46.08% and 3.85%, respectively. This indicates that the natural population of pod sucking bug is relatively high and dominant. Of 24 soybean genotypes tested, NSP-16-2-8 was consistently resistant on environments with and without insecticide application, whereas NSP-16-1-4 was consistently resistant to the pod borer attack. Those genotypes were potential to be used as source of genes for pod feeding insects’ resistance in the breeding program.
Pengaruh Pemberian Ekstrak Daun Sirih (Piper betle L.) untuk Mengendalikan Damping-Off pada Tanaman Cabai Capsicum annum) Hidayat, Taufiq; Supriyadi, Supriyadi; Sarjiyah, Sarjiyah
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.2015.040.60-66

Abstract

Sclerotium roflsii is the causal agent of damping-off disease on pepper which difficult to control. The use of chemical pesticides cause several damage to the environment. The used of Piper betle leaves extract which is contains antifungal compounds becomes one of the solution. The aim of this study to obtain the optimum concentration of piper betle leaves extract and dipping periode of chili seed in leaves extract to control damping off disease caused by Sclerotium rolfsii. The study consists of two experiments. The first experiment was isolation and multiplication of damping off disease in chilli, this stage was conducted in laboratorium. The second experiment was performed to investigate effectivity of piper betle leaf extract to control damping off using dipping method, this stage conducted in Greenhouse. The study arranged in Completely Randomized Design (CRD) with single factor experimental design consist of 13 treatment, namely consentration of 0%, 40%, 60% and 80% Piper betle leaves extract (v/v) with 1 hour, 2 hour, and 3 hour dipping time. The result showed that Piper betle leaves extract of 60% with 1 hour dipping time had the best ability among the other treatment to control damping off disease cause of Sclerotium rolfsii in chili seedlings.
Effects of Biochar and Chromolaena odorata Liquid Fertilizer Enriched with Sodium Bicarbonate on Soil and Muskmelon (Cucumis melo L.) Jamilah, Jamilah; Yasman, Ari; Resigia, Elara; Ernita, Milda
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.2020.108.7-14

Abstract

Biochar is an organic material instantly made by burning wood into charcoal by pyrolysis, which can meet the high demand for an organic material that cannot be available in a short time. The study aimed to determine the effect of biochar and Chromolaena odorata liquid fertilizer (CLF) enriched with Sodium bicarbonate on soil pH and Muskmelon (Cucumis melo L.) productivity. The research was conducted from December to February 2019 at the field station of Tamansiswa University, Padang. The study was carried out in a factorial experiment with 2 treatment factors arranged in a Completely Randomized Design, consisting of three replications within treatments. The data obtained were analyzed using the F test at 5%, followed by the Least Significant Difference (LSD) test at 5%. The results showed that there was an interaction effect of Biochar and CLF application on reducing the soil pH. Among all treatments, the application of 2 t.Ha-1 biochar combined with 50 ml.L-1 CLF + 0 g.L-1 sodium bicarbonate resulted in the highest growth rate and yield of muskmelon in Ultisols soil.
Pemanfaatan Bahan Organik dalam Perbaikan Beberapa Sifat Tanah Pasir Pantai Selatan Kulon Progo Hasibuan, Andi Surya Zannah
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.2015.037.31-40

Abstract

An experiment about the utilization of organic matter to improve some properties of sandy soils of south beach of Kulon Progo was conducted in Green House, Faculty of Agriculture, Universitas Muhammadiyah Yogyakarta. The research was carried out in experimental method which arranged in Completely Randomized Design (CRD) with 5 treatments. The treatments were P0 = without compost application (Control), P1 = 30 ton per hectare of cow dung compost, P2 = 30 ton per of  hectare of poultry compost, P3 = 30 ton per hectare of Angsana leaves compost, P4 = 30 ton per hectare of gamal leaves compost, each treatment were replicated 5 times. The result showed that utilization of organic matter could improve the properties of sandy soils of south beach of Kulon Progo. Angsana leaves were the best organic matter sources in improving the physical and chemical of soil properties, such as water content, bulk density, soil porosity, and soil C-Organic content.
Back Matter Planta Tropika: Jurnal Agrosains (Journal of Agro Science) Vol. 6 No. 1 Manager, Journal
PLANTA TROPIKA Vol 6, No 1 (2018)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

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

Abstract

Uji Efektivitas Berbagai Konsentrasi Pestisida Nabati Bintaro (Cerbera manghas) terhadap Hama Ulat Grayak (Spodoptera litura) pada Tanaman Kedelai Setiawan, Agus Nugroho; Supriyadi, Achmad
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.2014.029.99-105

Abstract

Spodoptera litura is a major pest in soybean cultivation causing damage by 80%. One of control is done  by using bintaro plants (Cerbera manghas) potential as a botanical pesticide (insecticide). This study aims to determine the effectiveness of botanical pesticide from bintaro extract and get the precise extract concentration of fruit, young leaves, and old leaves of bintaro to control Spodoptera litura on soybean plants, and its influence to  the growth of soybean plants. This study used an experimental method that is designed in a single factor completely randomized design using pesticides Bintaro (young leaves, old leaves, and fruit), which consists of three concentrations (100 g / l, 200 g / l, and 300 g / l), add two treatments, namely, sprayed with water and a  synthetic pesticides as a control. Result showed the leaves and fruit of Bintaro at concentrations of 100 g/ l to 300 g/ l by solvent extraction has not been effectively used as botanical pesticide to control Spodoptera litura on soybean plants. Old leaf Bintaro extract (100 g/ l) produces highest pest mortality value and  rate of 40.00% and 2.00. The use of botanical pesticide from extract bintaro (fruit and leaf) is not inhibit the growth of soybean plants.
Microscopic Characterization of Fusarium sp. Associated with Yellow Disease of Pepper (Piper nigrum L.) in South Bangka Regency Lestari, Ayu; Henri, Henri; Sari, Eka; Wahyuni, Tri
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.v9i1.7753

Abstract

Pepper production has decreased recently, especially due to yellow diseases of Fusarium sp. Thus, this research aimed to isolate and characterize Fusarium sp. from soil and root of healthy and diseased pepper plants. The sampling technique used was purposive sampling. Soil and root pepper samples were taken from lands in Payung and Ranggung Village, Payung District, South Bangka Regency. There were 3 varieties of pepper plant used, including Petaling 1, Nyelungkup, and Merapin Daun Kecil. The characterization of Fusarium sp. isolate included macroscopic and microscopic observation. Macroscopic observation included colony color, colony base color, and growth rate/colony diameter size (cm), while microscopic observation included hyphae structure, and the shape and size of microconidia, macroconidia, chlamydospore, and conidiophore. The research found 66 isolates of Fusarium genus based on the colony color. Most of the isolates were white or purple and red. Colony color of Fusarium sp. showed white color, which then turned to orange color. All isolates showed septate hyphae. Isolates with macroconidia 3-4 septate and micronidia 0-1 septate showed the character of Fusarium oxysporum, while isolates with macroconidia 3-5 septate and microconidia 0-2 septate showed the character of Fusarium solani.
Eksistensi Varietas Padi Lokal pada Berbagai Ekosistem Sawah Irigasi: Studi di Daerah Istimewa Yogyakarta Samidjo, Gatot Supangkat
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.2017.069.34-41

Abstract

A research was carried out to study the existence of rice local variety in the irrigated paddy fields in different ecosystems. The research was conducted from January 2013 to February 2014 in the Special Region of Yogyakarta. Observation and interview were used in this research for collecting the data. The largest irrigated rice fields were selected using stratified random sampling. Farmers as a respondent were selected by purposive sampling, based on rice variety grown on their paddy fields with the area of at least 1000 m2. Variables were observed in this research including rice variety distribution, farmer experience on planting local variety, physical ecological impacts, rice yield and economical yield component. Data was analyzed by spatial analysis and descriptive analysis. The result showed that rice local variety still existed in the fields, which Menthik and Menthik Susu were dominant local variety distributed in irrigated paddy fields ecosystem. The existence of local variety was indicated by the high percentage of the farmer experience in planting rice local variety. The highest yield and B/C (Benefit/Cost ratio) ratio were gained by Menthik variety compared with other local varieties.
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.v5i1.2999

Abstract

Page 21 of 43 | Total Record : 427

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