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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 14 Documents
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Search results for , issue "Vol 2, No 1 (2014)" : 14 Documents clear
Efektivitas Penginduksi Resistensi Dan Biopestisida Terhadap Penyakit Bercak Daun Cercospora Dan Antraknosa Pada Cabai (Capsicum annuum L.) Gunawan, Ony Setiani
PLANTA TROPIKA: Journal of Agro Science Vol 2, No 1 (2014)
Publisher : Department of Agrotechnology, Faculty of Agriculture, Universitas Muhammadiyah Yogyakarta

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

Abstract

Penelitian dilakukan untuk mengetahui sumber daya hayati potensial dalam bentuk agen hayati penginduksi resistensi dan biopestisida serta kombinasinya dalam mengendalikan penyakit bercak daun Cercospora capsici dan antraknosa pada cabai. Penelitian ini dilakukan di Nglingi, Desa Harjobinangun, Kecamatan Pakem, Sleman, Provinsi Daerah Istimewa Yogyakarta. Metode percobaan lapangan menggunakan rancangan faktorial 3 x 5 yang disusun dengan rancangan acak kelompok lengkap (RAKL) dengan faktor pertama yaitu penginduksi resistensi dengan 3 aras yaitu non penginduksi resistensi, penginduksi resistensi dari Mirabilis jalapa (bunga pukul empat sore), penginduksi resistensi dari Amaranthus spinosus (bayam duri). Faktor kedua yaitu biopestisida dengan 5 aras yaitu non biopestisida, biopestisida Formula Amp, biopestisida Pfm001, Biopestisida Formula Amp + Pfm001 dan fungisida kimia sintetis. Hasil penelitian menunjukkan bahwa penginduksi resistensi dapat menekan buah cabai terserang antraknosa tetapi tidak berpengaruh dalam menekan penyakit bercak daun Cercospora, tidak mempengaruhi pertumbuhan tanaman tetapi dapat menekan jumlah buah sakit dan berat buah sakit, serta menekan antraknosa pada buah cabai. Biopestisida tidak berpengaruh terhadap penyakit bercak daun Cercospora tetapi menurunkan Antraknosa pada buah cabai. Biopestisida tidak berpengaruh terhadap pertumbuhan tanaman cabai tetapi dapat menurunkan jurnlah buah sakit dan berat buah sakit serta dapat meningkatkan hasil. Tidak terdapat interaksi antara penginduksi resistensi dan biopestisida terhadap semua parameter kecuali terhadap   parameter Area Under Disease Progress Curve (AUDPC).
Kualitas Dange Yang Disubstitusi Tepung Daging Ikan Kembung (Rastrellinger kanagurta) Kuntjahjawati, Kuntjahjawati; Supriasri, Supriasri; Rukmini, Ambar
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.2014.020.28-35

Abstract

Dange is a traditional food made from delicate wet sago starch and further roasted in forna. Dange has rectangle form, flat with approximately 0,5 cm thickness. In addition, dange is also well known for its light, tasteless, hardness and relatively not hygroscopy. To increase the quality of dange and improve its flavour, a research was performed to study the quality of dange substituted with mackerel fish meat. The treatment was arranged in two classifications factorial completely randomized design. The classifications were variation of mackerel fish meat (0%, 2%, 5% and 8%) and time of grill (1 minute, 2 minutes and 3 minutes). Furthermore, the dange product quality was tested chemical and sensory analysis. The chemical analysis consisted of moisture, protein, fat, ash and starch content. Whereas the different of dange product quality was tested sensory analysis using scoring test method and the consumers acceptance was tested by hedonic scale test method. It was found that the most liked dange was made from 5% substitute of mackerel fish meat at 1 minute grill. This dange had slightly brittle texture, yellow-white colour, fishy taste and relatively strong fishy flavour with 27.84% moisture, 3.98% protein, 0.50%fat, 2.48% ash and 57,78% starch content.
Pengaruh Macam Inokulum Dan Lama Inkubasi Pupuk Organik Terhadap Pertumbuhan Dan Hasil Padi Sarjiyah, Sarjiyah
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.2014.021.36-43

Abstract

The experiment aimed to know the best inoculant and incubation time of organic fertilizer to the growth and yield of paddy. The experiment was conducted in Kasihan, Bantul, Yogyakarta. The altitude of experiment site is 110 m above sea level with the soil type of regosol.The experiment used the 3 x 4 factorial with one control and was arranged in Randomized Completely Block Design with three block as replication. The first factor was kind of inoculant to make organic fertilizer, consisted of 3 levels i.e (1) without inoculant, (2) EM4 and (3) Stardec. The second factor was incubation time, consisted of 4 levels i.e (1) 7 days, (2) 14 days, (3) 21 days and (4) 28 days. The control used organic fertilizer (Urea, SP36, KCl) with recommended dose.The result showed that neither organic fertilizer without inoculant nor with addition of EM4 and Stardec (with incubation time 7-28 days) affected significantly to the growth and yield of paddy, the used 3ton/hectare of organic fertilizer with or without inoculant did not affect significantly to the yield of paddy.
Pengaruh Lama dan Waktu Peneduhan Terhadap Pertumbuhan dan Hasil Kacang Hijau Varietas Camar Pamungkas, Djoko Heru
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.2014.018.7-13

Abstract

A study on the effect of length time shading (approx 70 % of sun rise intensity) to the growth and yield of Camar mung bean variety was conducted in Nogotirto, Gamping, Yogyakarta. The experiment was arranged in a Randomized Complete Block Design with 3 replications. The treatment were 6 levels of length and time of shading of Camar mung bean variety, i.e.: shading at the whole life cycles (A), the first half life cycles (B), the second half life cycles (C), the first quarter life cycles (D), the second quarter life cycles (E) and no shading at the whole life cycles or control (F).The result showed that the length and time of shading affected the growth and yield of Camar mung bean variety significantly except for the number of root - pimples, the number of effective root - pimples and weight of 100 grain per plant parameters. In accordance with the control, the shading at the first quarter and second quarter or at last life cycles gave no significant different in the growth and yield. The yield of that treatments ware 1.77, 1.72 and 1.82 tons seed per hectare. While in accordance with the control, the shading at the first half, the second half and at the whole life cycles gave the lower growth and yields. The decreasing at the yields were 28.95, 32.96 and 42.36 %.
Rekomendasi Pemupukan K Spesifik Lokasi Untuk Tanaman Padi Sawah Adnyana, I Made
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.2014.022.44-48

Abstract

The efficiency of fertilizer use is changing greatly depending on soil properties, fertilizer type, irrigation and level of intensive cultivation. A site specific potassium (K) experiment was conducted to formulate the fertilizer recommendation of K for rice plant in different K soil status. The objective of this research were to select a proper soil test method, classify the soil test value of K into two or more classes and fertilizer recommendation of K to rice plant. The result showed that the method of NH4OAc 1 N pH 7 was the best technique for soil analysis. Based on the method, there are 3 available classes of K i.e. low, medium and high. The soil with the highest availability of K does not require fertilizing with K, because it has been fulfilled by the water irrigation and straw. The fertilizer recommendation of K for rice plant at medium class is less than low class.
Peel Ultrastructure During Developmental Stages of Citrus Sinensis (L.) Osbeck. Prabasari, Indira
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.2014.017.1-6

Abstract

The peel structureof Valencia orange (Citrus sinensis (L.) Osbeck) was examined using Scanning Electron Microscopy (SEM) and showed the distinct regions of the peel: the outer-yellowish part that was called the flavedo and the inner part of the peel that was called the albedo.  The flavedo has compact cells with oil glands embedded in it whereas the albedo contains of spongy cells with vascular bundles embedded in it. The ultrastructural examination of the albedo during development revealed the changes of albedo morphology from compact tissue to the loosely arranged tissue. In addition, the distribution of polysaccharide cell walls was observed with histochemical staining and later the distribution of peptic polysaccharide was conducted using anti-pectin monoclonal antibodies (mAbs). Histochemical staining during development demonstrated the difference of abundance of polysaccharide at the tissue level.  Furthermore, the distribution of homogalacturonan (HG) was studied with mAb JIM5 that recognizes low methyl-esterified HG and JJM7 which labels high methyl-esterified HG. The observation at the fruit level was conducted using tissue printing and the result showed that low and high methyl-esterified HG was distributed almost similar at the fruit level. Further experiment at the tissue level was performed using Light Microscopy (LM) and revealed that HG was found more abundant in the albedo and vascular bundle followed by the flavedo and oil gland.
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.
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.
Pengaruh Macam Inokulum Dan Lama Inkubasi Pupuk Organik Terhadap Pertumbuhan Dan Hasil Padi Sarjiyah Sarjiyah
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.2014.021.36-43

Abstract

The experiment aimed to know the best inoculant and incubation time of organic fertilizer to the growth and yield of paddy. The experiment was conducted in Kasihan, Bantul, Yogyakarta. The altitude of experiment site is 110 m above sea level with the soil type of regosol.The experiment used the 3 x 4 factorial with one control and was arranged in Randomized Completely Block Design with three block as replication. The first factor was kind of inoculant to make organic fertilizer, consisted of 3 levels i.e (1) without inoculant, (2) EM4 and (3) Stardec. The second factor was incubation time, consisted of 4 levels i.e (1) 7 days, (2) 14 days, (3) 21 days and (4) 28 days. The control used organic fertilizer (Urea, SP36, KCl) with recommended dose.The result showed that neither organic fertilizer without inoculant nor with addition of EM4 and Stardec (with incubation time 7-28 days) affected significantly to the growth and yield of paddy, the used 3ton/hectare of organic fertilizer with or without inoculant did not affect significantly to the yield of paddy.
Kajian Dampak Iklim Ekstrim Curah Hujan Tinggi (La-Nina) Pada Jeruk Siam (Citrus Nobilis var. Microcarpa) Di Kabupaten Banyuwangi, Jember Dan Lumajang Ashari, Hasim; Hanif, Zainuri; Supriyanto, Arry
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.

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