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Dr. Ir. Endang Yuniastuti, M. Si.
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Agrosains: Jurnal Penelitian Agronomi
Published by Universitas Sebelas Maret
ISSN : 14115786     EISSN : 26557339     DOI : https://doi.org/10.20961/agsjpa
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Agrosains: Jurnal Penelitian Agronomi publishes articles related to agriculture such as plant physiology, crop production, physiology and seed production, soil science, plant breeding, plant protection, agro-climatology, agroecology, and plant biotechnology.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 5 Documents
 1 
Search results for , issue "Vol 15, No 1 (2013): Agrosains: Jurnal Penelitian Agronomi" : 5 Documents clear
Penggunaan Sari Umbi Bawang Merah pada Pembibitan Pepaya Faryska Nur Ichsan; Djoko Purnomo; Linajanti Darsana
Agrosains : Jurnal Penelitian Agronomi Vol 15, No 1 (2013): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (678.071 KB) | DOI: 10.20961/agsjpa.v15i1.34802

Abstract

People awareness toward nutritious food through the consumption of fruit is rising. Therefore, it needs the increasing of seed availability, either from the planting expansion or cultivation technology development. The productive life of papaya is around 3 years, so the rejuvenate of plant takes relatively quickly. However, the obstacle occurred comes from the adequate life of seed availability and the limitedness of homogeneous seed. Therefore, young seed forced to be used in the field will cause the growth of the plant not in unison. Moreover, it is also not profitable if it is considered from the cultivation of seedlings, since the price of the seed will be cheaper. This research aims to get papaya’s seed which can grow fast and uniformly using growth stimulant substance just like gibberellins that is easy to get and cheap. The experiment studies using concentrations of union juice as the substance to soak the planting material seed of papaya before it is planted. The test of durability and germination speed toward 10 seeds on opaque paper in a petri dish germination medium which the diameter is 11,5 cm. The experiment of seeds growth uses completely randomized design (RAL) in a factor of water treatment, the concentration of union juice is 5, 10, 15, and 20 ml l-1, and 10 ppm gibberellin. Every treatment (experimental unit) consists of 8 seeds planted on the traypot (combination of plastic pots, which each size about: on the surface and high 5,5x5, 5x5,5 cm, pots base 2,5x2,5 cm, an each traypot consists of 32 pots). Thus, there were 8 unit experiments for each traypot, and every single unit of experiments is repeated 3 times. Traypot and petri dish are put beneath the roof in the terrace protected by paranet 65% with 2,5x1,5x2,0 m (length, width, and height) in size. The union juice which is potential is used as the substitute of plant growth regulators gibberellins in papaya seedling. The response of papaya seed toward union juice with 15 ml l-1 concentration is equal to 10 ppm gibberellin, occurred in germination (durability and speed of germination) and the seed growth (the root length, the stem diameter, number of leaves, and biomass weight).
Efektifitas Cuka Kayu sebagai Pestisida Nabati dalam Pengendalian Hama Crocidolomia Pavonana dan Zat Perangsang Tumbuh pada Sawi Nunung Ambarwati; Subagiya Subagiya; YV Pardjo NS
Agrosains : Jurnal Penelitian Agronomi Vol 15, No 1 (2013): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (642.843 KB) | DOI: 10.20961/agsjpa.v15i1.18988

Abstract

Cabbage caterpillar pests (Crocidolomia pavonana) is one of the main obstacles inhibiting the production both in quality and quantity. Control is generally done with chemical pesticides that can harm the environment and humans. Wood vinegar is an agricultural waste that is used to increase the quantity and quality of mustard plant. This study aims to determine the effectiveness of wood vinegar as a botanical pesticide in the mustard plant and the PGR and the most effective concentration. Research using completely randomized design with 7 degree treatment laboratory tests (mortality, biology, kemampua eating) and 8 standard treatment field test (the intensity of pest attack, plant height, leaf number and weight of mustard plant), repeated 3 times. The results showed that wood vinegar is not effective as a pesticide plant pest control C.pavonana the mustard. Wood vinegar speed up the life cycle C. pavonana. Wood Vinegar can help to enhance and augment leaf mustard plant so that it can be effective as an aphrodisiac mustard plant grows. The greater the concentration of a given wood vinegar, increased growth (both height and number of leaves of mustard plant).
Antagonisme Bacillus terhadap Infeksi Layu Fusarium pada Bibit Pisang Hasil Kultur Jaringan Hadiwiyono Hadiwiyono; Arief Widyantoro; Salim Widono
Agrosains : Jurnal Penelitian Agronomi Vol 15, No 1 (2013): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (410.832 KB) | DOI: 10.20961/agsjpa.v15i1.18990

Abstract

Fusarium wilt (Fusarium oxysporum f.sp. cubense) is an important disease in banana. Fusarium wilt was hard to control because the pathogen can survive in many kind of soils type although there is no host. Therefore, overcoming the disease is urgently needed such as biological control. The endophytic Bacillus of banana was begun to use as antagonist agent to the pathogen. This research aimed to study the mechanism of antagonism and physiological character of Bacillus. There were 27 Bacillus isolates examined in-vitro to test the production of IAA, HCN, chitinase, pectinase, and antagonism. The top ten isolates based on the test in vitro were used to test in planta. The research showed that Bacillus were able to produce IAA, HCN, chitinase, pectinase, and able to retard the growth of Foc colony. The application of isolat B25 on banana seedling could decrease the disease intensity but still unable to prevent the fusarium wilt infection.
Efektivitas Pupuk Organik pada Tumpangsari Kedelai dengan Jagung untuk Mengurangi Penggunaan Pupuk N, P dan K Evi Oktanika; Supriyono Supriyono; Suwarto Suwarto
Agrosains : Jurnal Penelitian Agronomi Vol 15, No 1 (2013): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (336.131 KB) | DOI: 10.20961/agsjpa.v15i1.18966

Abstract

Soybean is one of the commodity with high market demand. Soybean production process is limited by the lack of land. One of the efforts to improve the usefullness of land and production of soybean is an intercropping method between soybean and corn. Intercropping that over using chemical fertilizers have impact negatively on the land. Therefore, utilization of organic fertilizer to reduce the chemical fertilizer is necessary to prevent the damage of the land. This study aimed to examine the utilization of organic fertilizer to replace a part of chemical fertilizer. This study was conducted at the Center for Dryland Research Faculty of Agriculture, University of Sebelas Maret Surakarta, Jumantono, Karanganyar started on February until May 2013. The experiment was conducted using Randomized Complete Block Design (RCBD) with one factor fertilization consists of 6 levels, one control and two comparators monoculture. The results showed that application of organic fertilizer 800 kg ha-1, Urea 125 kg ha-1, SP-36 83.33 kg ha-1 and KCl 83.33 kg ha-1 with the highest yield for soybean 1.52 tons ha-1 and corn 1.25 tons ha-1 is optimal balance dosage of organic and inorganic fertilizers to soybean-corn intercropping. The treatment did not significantly different with inorganic fertilizer intercropping experiment. The research treatment showed that N, P and K fertilizer can’t be reduce by organic fertilizers.
Pengaruh Volume Pemberian Air terhadap Pertumbuhan Tiga Varietas Tomat (Lycopersicum esculentum Mill) Roffiul Umamil Marzukoh; Amalia Tetrani Sakya; Muji Rahayu
Agrosains : Jurnal Penelitian Agronomi Vol 15, No 1 (2013): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.596 KB) | DOI: 10.20961/agsjpa.v15i1.18986

Abstract

Tomato is one of the agriculture commodity that has many benefits. However, the production of tomato in in low land is still low so it needs effort to increase production. Issues that facing in low land cultivation are high temperature and uncertain water availibility. This study aimed to investigate the effect of watering volume on growth of tomato. This research was conducted at the Greenhouse and Laboratory of Plant Fisiology and Biotechnology, Faculty of Agriculture, Sebelas Maret University. Research was conducted from December 2012 to May 2013. This research used completely randomized factorial design with two factors of treatment, namely variety of tomato were Opal, Gondol and Mutiara and watering volume (4,4 l, 3,42 l, 2,34 l, and 1,28 l in each watering). Data were analyzed by analysis variance and continued by Duncan Multiple Range Test level of 5%. The results showed that the higher of watering volume increases the growth of tomato. Plant height, number of branch, leaf area, dry weight of shoot, dry weight of root and the length of root increase with increasing watering volume. The appropriate tomato that can be developed in the various watering is Gondol.

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