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INDONESIA
Agroista: Jurnal Agroteknologi
Published by Institut Pertanian Stiper Yogyakarta
ISSN : 25973835     EISSN : 26847019     DOI : https://doi.org/10.55180/agi
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
AGROISTA : Journal of Agrotechnology Research is scientific periodical publication on agricultural issue as a media for information dissemination of research result for lecturers, researchers and practitioners. The coverage includes but is not restricted to: Plantation productivity Plant breeding and genetics Plant Physiology Pests and diseases, weeds in plantations Plant protection Sustainable agriculture Organic agriculture Conservation of plantation land Soil and fertility Plantation Management CSR of plantation companies
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 153 Documents
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PERTUMBUHAN Mucuna bracteata PADA BERBAGAI KOMPOSISI MEDIA TANAM DAN VOLUME PENYIRAMAN Titin Setyorini; Mangihut Tua Raja; Yohana Theresia Maria Astuti
AGROISTA : Jurnal Agroteknologi Vol. 1 No. 1 (2017): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (301.795 KB) | DOI: 10.55180/agi.v1i1.1

Abstract

Mucuna bracteata is a cover crop that is commonly used in oil palm plantations. It has many advantages, such as rapidly growing, preventing erosion on open land and suppressing weed growth. The research aims to determine the effect of various compositions planting medium with addition of organic and inorganic fertilizers and watering volume on the growth of Mucuna bracteata. The research was conducted in Kebun Pendidikan dan Penelitian (KP2) Institut Pertanian STIPER Yogyakarta, from April to July 2016. Completely Randomized Design (CRD) factorial consisting of two factors was applied as experimental design. The first factor was growing media consisting of four levels, namely P0 (regosol, without fertilizer), P1 (regosol + NPK), P2 (regosol + manure), P3 (regosol + compost). The second factor was watering volume consisting of three levels, namely V1 (200 ml/day), V2 (400 ml/day), and V3 (600 ml/day). Analysis of variance (ANOVA) and Duncan's Multiple Range Test (DMRT), both with significance level of 5%, were then used to find out whether significant differences among treatments, were existed. Regression was used if ANOVA showed no significant differences among treatment. The result showed that there was no interaction between treatment, growing media and watering volume on Mucuna bracteata’s growth. Regosol and manure was the best media to support plant growth Mucuna bracteata, while the watering volume was not. Keywords : Growth, Mucuna bracteata, growing medium, watering volume
UJI PREFERENSI KONSUMEN TERHADAP KARAKTER BUNGA KEMBANG KERTAS (Zinnia elegans Jacq.) Aziz Purwantoro; Jamhari
AGROISTA : Jurnal Agroteknologi Vol. 1 No. 1 (2017): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (481.253 KB) | DOI: 10.55180/agi.v1i1.3

Abstract

Zinnia elegans Jacq. are found in Indonesia, but in general these plants have a less attractive appearance. Efforts to developed Zinnia elegans Jacq. need to be done so that it can be used as cut flowers besides Chrysanthemum. Method of cultivation have been obtained in producingflower seeds (first year) the next step is testing the quality of the character of the shape of flowers and consumers preference test. It was necessary to be able to ensure that flowers produced have good quality and can have economic value. Experiment was conducted to test consumer preferences for phenotypic characters on Zinnia elegans Jacq. flower plant populations generation M5 and M6 result of X-ray irradiation. Preference test was through questionnaire survey method. Results of the assessment Respondents were then tested using Friedman Test / Two-Way ANOVA by rating (Two-way ANOVA by ranks) with SPSS software. The results showed that the type of pompom flowers was preferred than a single type (single). Respondents were also prefer flowers that are not too high, flower with widediameter, and flowers with more fragrant. Flower color preferences based on analysis of respondents in a row is red, purple, white, and yellow.
PEMANFAATAN PUPUK BIO-SLURRY PADA JENIS TANAH YANG BERBEDA TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT DI PRE-NURSERY Pauliz Budi Hastuti; Surya Budi Setiawan
AGROISTA : Jurnal Agroteknologi Vol. 1 No. 1 (2017): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (350.893 KB) | DOI: 10.55180/agi.v1i1.4

Abstract

The aim of this research was to determine the effect of Bio-slurry fertilizer on various types of soil to the growth of oil palm seedlings in pre-nursery. Factorial completely randomized design was used in this research. The first factor was the kind of soil, which consists of two levels: latosols and regosols. The second factor was the dose of Bio-slurry fertilizer consisting of four levels : 50 ml tan-1 , 100 ml tan-1 , and 150 ml tan-1 and standard fertilizers dosage (NPKMg and Urea) as a control. The results showed that Bio-slurry fertilizer can replace the role of inorganic fertilizer in spurring the growth of oil palm seedlings in pre-nursery. Regusols provides better growth of palm seedlings than latosols.
DETEKSI KOMUNITAS BAKTERI PADA DIAPHORINA CITRI JANTAN DAN BETINA, VEKTOR PENYAKIT HUANGLONGBING PADA JERUK MENGGUNAKAN PCR-RISA Achmad Himawan; Siti Subandiyah
AGROISTA : Jurnal Agroteknologi Vol. 1 No. 1 (2017): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (234.755 KB) | DOI: 10.55180/agi.v1i1.5

Abstract

Huanglongbing (HLB) is a very destructive disease on citrus. Diaphorina citri is a HLB disease vector. The aim of this research is to detec bacterial community in the insect vector, especially D. citri males and females, using Polimerase Chain Reaction-Ribosomal Intergenic Spacer Analysis (PCR-RISA) method. The results of research show that there are 3 – 4 bacteria species in D. citri males and 1 – 4 bacteria species in D. citri females.
PENGGUNAAN ALAT SENSOR WARNA UNTUK MENDUGA DERAJAT DOMINANSI GEN PENYANDI KARAKTER WARNA BUAH CABAI HASIL PERSILANGAN Tantri Swandari; Panjisakti Basunanda; Aziz Purwantoro
AGROISTA : Jurnal Agroteknologi Vol. 1 No. 1 (2017): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (433.32 KB) | DOI: 10.55180/agi.v1i1.6

Abstract

Colour is an interesting character to be studied in breeding program of ornamental chilli. Colour of plant was affected by the accumulation chlorophyll, carotenoids and anthocyanins that regulated by multiple genes controlling color (gene B, gene cl, gene y + , gene c1 / c2, and gene A). Genes regulating of colour have different dominance degrees thus affecting potential properties inherited in plants. Aim of the research was to determine the alleged dominance of the gene encoding a colour using the colour ratio of female and male parent, and also population of F1 generation. Research materials used are F1 generation and reciprocal accession (A, BR, and CP). The measured parameter was the character of fruit colour using a colour sensor Conica Minotla 400 to get the value of L*a*b* (L: brightness; a: axis extends from green (-a) to red (+a); b: the b axis from blue (- b) to yellow color).Quantitative measurement based on the coordinates L*a* b* showed Chroma and Hue values that describe the color of the fruit. The results showed that the potential value of color brightness ratio of generation F1 and F1R (F1: AxBR, F1R: BRxA) were over dominant. Gene partially dominant shown in cross breeding of accession A and CP (F1: AxCP, F1R: CPxA).
RESPON VARIETAS PADI TAHAN SALIN TERHADAP BEBERAPA DURASI GENANGAN DENGAN TINGKAT SALINITAS BERBEDA Erick Firmansyah; Budiastuti Kurniasih; Didik Indradewa
AGROISTA : Jurnal Agroteknologi Vol. 1 No. 1 (2017): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (248.87 KB) | DOI: 10.55180/agi.v1i1.7

Abstract

Indonesia population predicted to reach 304.9 million in 2035 and requires 70% more rice as food supply than today. The fulfillment of food supply experienced constraints such as submergence and salinity caused by climate change. Salinity and submergence stresses may occur in the same time, and the crop response to them has not been widely known. Research has been done to find out the responses of rice to salinity and submergence. The submergence level as the first factor consists of three levels (without submergence (R0); one-week submergence (R1); And two-week submergence (R2)}, salinity level as a second factor consists of two levels {non saline (S1); And saline (S2) to obtain six combinations and each combination is repeated three times. Observations were made on the ratio of the leaf area ratio, the typical leaf area, the canopy -root ratio, the typical leaf weight and the canopy growth rate of the canopy. The weight of grain per clump becomes the observed production parameter at the end of the generative phase. The results showed that there was interaction between submergence duration and salinity level on leaf area ratio, typical leaf area, and canopy-root ratio. Observation of typical leaf weight and relative growth rate showed the treatment of submergence and salinity gave an individual effect. Two weeks of submergence cause plant to death. The saline treatment in all submergence levels resulted in a decrease in the weight of grain per hill. Plants survived one-week non-saline submergence, but two weeks non-saline submergence caused the plant to di
UJI EKSTRAK BAGIAN UMBI BAWANG MERAH TERHADAP JAMUR Magnaporthe grisea Hangger Gahara Mawandha
AGROISTA : Jurnal Agroteknologi Vol. 1 No. 1 (2017): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (247.679 KB) | DOI: 10.55180/agi.v1i1.8

Abstract

Shallot is widely consumed components of the diet of many populations, particularly in Asian diets. It is widely believed to be beneficial to health and even curative potential against a range of debilitating conditions and diseases. Allelochemical analysis of shallot extracts has confirmed the presence of some compound that inhibit of fungi activities. In the present study to know a part of shallot that suppress of Magnaporthe grisea activities and for knowing effective concentration that suppress of Magnaporthe grisea activities. Allelochemical compounds isolated from three parts of the tuber, skin, and discs of shallot. Separation of antifungal compounds with the addition of hexane, MeOH 70%, and butanol. Purification of compounds on any part of the shallot is done by evaporation method. Once evaporated, then add 80% ethanol and wind dried. Compounds derived from tuber, skin, and discs of shallot tested against Magnaporthe grisea. The extract concentration a part of shallot tested was 100 µg/ml, 200 µg/ml, and 500 µg/ml and aquades for controller. The result showed that discs of shallot with concentration of 500 µg/ml could suppress of Magnaporthe grisea activities, which reached 42%. The procentage was the highest suppress of Magnaporthe grisea activities than another part of shallot and another concentration, but the procentage still less than 50%. However, using all parts of the shallot with a concentration of 500 µg/ml would be more effective in suppressing the activity of Magnaporthe grisea.
REAL-TIME OBSERVATION OF Pseudomonas aeruginosa BIOFILM FORMATION USING CONFOCAL MICROSCOPY SYSTEM WITH A FLOW CELL TECHNIQUE Arif Umami; Eko Windarto
AGROISTA : Jurnal Agroteknologi Vol. 1 No. 1 (2017): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (588.105 KB) | DOI: 10.55180/agi.v1i1.9

Abstract

Pseudomonas merupakan salah satu genus bakteri yang memiliki manfaat di bidang pertanian. Bakteri tersebut diketahui termasuk mikroba yang menghasilkan sekret berupa polimer ekstraseluler yang berperan dalam pembentukan biofilm. Penelitian ini bertujuan untuk mengetahui pembentukan biofilm pada Pseudomonas aeruginosa dengan memanfaatkan sistem mikroskop confocal yang terintegrasi dengan teknik flow cell. Pembentukan biofilm pada Pseudomonas aeruginosa diatur oleh 3 gen yaitu algD, pelA and pslA. Hasil menunjukkan bahwa teknik flow cell dengan mikroskop konfokal dapat digunakan untuk melihat secara langsung pembentukan biofilm. Berdasarkan hasil pengamatan mikroskop confocal diketahui pembentukan biofilm strain algD, pslA and PAO1 ( wild type) masih rendah.
EVALUASI POLA PEWARISAN WARNA BUAH CABAI GENERASI F2 HASIL PERSILANGAN Christina Astri Wirasti; Aziz Purwantoro
AGROISTA : Jurnal Agroteknologi Vol. 1 No. 1 (2017): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.153 KB) | DOI: 10.55180/agi.v1i1.10

Abstract

Chili is an agricultural commodity used in the field of food and industry, can also be used as an ornamental plant. As an ornamental plant, chilies are able to provide exciting new variations due to the striking color of the fruit. This study was conducted as an attempt to increase the variation genetic of chili especially related to fruit color character. In addition, it is expected to be used to study the pattern of inheritance of the fruit color of chili from the cross. The experiment was conducted in greenhouse of Faculty of Agriculture Gadjah Mada University and the screenhouse of Faculty of Agriculture Veteran National Development University. The research took place from November 2010 until in August 2013. Three introduction chilies were used in this experiment are Pepper Sweet Minimix, Orange Baby and Pepper Hot Razzamatazz and one local cayenne varieties (White Trisula). The results showed that the dominant red color to yellow, brown and orange, except on the crossing MX2 × RWT. The color of ripe fruit is controlled by two loci, although in some crosses shows cytoplasmic inheritance.
SUKSESI VEGETASI GUNUNG MERAPI MEGGUNAKAN INDEK NDVI Betti Yuniasih
AGROISTA : Jurnal Agroteknologi Vol. 1 No. 1 (2017): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (927.798 KB) | DOI: 10.55180/agi.v1i1.11

Abstract

Succession is the natural ecological process to restore the condition after the disturbance happen. The succession caused by pyroclastic flow of the volcano eruption is the example of natural succession. The NDVI Index is the one tools to observe the sucession after burning using the satellite imagery. Aims of this research were to compare the vegetation density in location that was affected by pyroclastic flow and location that was not affected by pyroclastic flow in southern mountainside of Merapi volcano using NDVI index in ASTER imagery that was recorded on July 7, 2009, November 15, 2010, and June 13, 2012. The results showed that before the eruption in 2010, the vegetation density in both of location is almost same. Than the NDVI index in ASTER imagery that was recorded in November 15, 2010 showed the decline of vegetation density in both locations, especially in location that was affected by pyroclastic flow. The location that was affected by pyroclastic flow have the almost same NDVI index with location that was not affected by pyroclastic flow in two years after the eruption, which means there has been a succession.

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