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All Journal HAYATI Journal of Biosciences Jurnal Agroekoteknologi AGROSCIENCE Paspalum: Jurnal Ilmiah Pertanian Jurnal Agrotek Indonesia TRIDARMA: Pengabdian Kepada Masyarakat (PkM) Jurnal Inovasi Penelitian Fruitset Sains : Jurnal Pertanian Agroteknologi OrchidAgro Agripreneur : Jurnal Pertanian Agribisnis International Journal of Advanced Multidisciplinary Greenation International Journal of Engineering Science ROCE : Jurnal Pertanian Terapan Greenation International Journal of Engineering Science
Indriana, Kovertina Rakhmi
Jurusan Agroteknologi, Fakultas Pertanian, Universitas Winaya Mukti
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences Other

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Journal : Jurnal Agroekoteknologi

 1 
TEKNIK PEMATAHAN DORMANSI BENIH DAN PERTUMBUHAN JARAK PAGAR (Jatropha curcas L.) KULTIVAR IP-3P MELALUI PEMBERIAN GIBERELIN (GA3) PADA BERBAGAI POSISI MIKROPIL DI PERSEMAIAN Juliana, Deby; Indriana, Kovertina Rakhmi; Amalia, Lia
Jurnal Agroekoteknologi Vol 13, No 1 (2021)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jur.agroekotetek.v13i1.12164

Abstract

This research aims to study and determine the technique of breaking the dormancy of Jatropha seeds by giving gibberellins (GA3) and various planting positions on the growth of Jatropha seeds in the nursery. The research was carried out from June-August 2020. The experimental design used was a simple randomized block design (RBD) with a combination of GA3 concentrations and seed positions with 18 treatment combinations. Each was repeated 2 times. The results showed that giving gibberellin concentration (GA3) at different planting positions did not have an effect on germination parameters, but it did affect growth parameters. All concentrations of gibberellin (GA3) had no effect on seed germination, seed growth rate and vigor index, but the concentration of 500 mg L-1 at various planting positions had a better effect on plant height, number of leaves, stem diameter, fresh weight and plant dry weight. Jatropha in the nursery.
RESPON PERTUMBUHAN TANAMAN KOMBINASI KULTIVAR JARAK PAGAR DENGAN DOSIS MIKORIZA TERBAIK DAN KONSENTRASI SITOKININ DI DATARAN MEDIUM Kovertina Rakhmi Indriana; Cucu Suherman; Santi Rosniawaty; Sumadi Sumadi
Jurnal Agroekoteknologi Vol 12, No 1 (2020)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jur.agroekotetek.v12i1.8776

Abstract

The current condition is a lot of the transfer of agricultural land functions into housing and industry. Utilization of marginal land is one of the important solutions to be done. One type of marginal soil is inceptisol, with limiting factors for low soil chemical fertility, especially the element P. The element P can become available for plants with the help of AMF. To reveal the performance of plant growth through the combination of three Jatropha cultivars with the best dose of arbuscular mycorrhizal fungi and cytokinin concentrations on plant photosynthesis results in two different locations. The experiment starts from January 2019 until June 2019 at an altitude of 0-50 meters above sea level (lowlands) and altitudes from 750 to 850 meters above sea level. The combined trial evaluated jatropha cultivar and the best arbuscular mycorrhizal fungi dose and repeated cytokinin concentrations three times. The results of the experimentshowed that there was a significant effect on each treatment and the interaction between the treatments with the best results was the concentration of cytokinin 400 mg L-1 for plant height growth variables, and the concentration of cytokinin 300 mg L-1 for the variable chlorophyll content of leaves, number of leaves, whereas cytokinin concentration 100 mg L-1 for stomatal conduction activity.
PENGARUH WAKTU PENYIMPANAN BENIH DAN KONSENTRASI LARUTAN ASAM SULFAT TERHADAP PERTUMBUHAN BENIH JARAK (Jatropha curcas Linn.) DI PERSEMAIAN Kovertina Rakhmi Indriana; R Budiasih
Jurnal Agroekoteknologi Vol 8, No 1 (2016)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (220.811 KB) | DOI: 10.33512/j.agrtek.v8i1.1172

Abstract

The aims of the research were to study the growth of plants in the nursery and look for the optimum concentration of H2SO4 solution at certain storage duration that gives the highest dry plant weight in the nursery. Experiments were conducted in the seed laboratory and in the nursery of Faculty of Agriculture, Winaya Mukti University using randomized block design factorial with 2 factors. The first factor was the time and concentration of sulfuric acid solution i.e. Soaking 6 minutes in H2SO4 0.25%, 0.50%, 0.75% and 1.0%. The second factor was seed storage duration i.e. without being stored, 1, 2, and 3 months. The data was analized using linear quadratic regression method. The experimental results showed that there was interaction between seed storage time and concentration of sulfuric acid solution on leaf area and plant dry weight. The treatment without storage time and concentration of 0.75% sulfuric acid solution gave the best effect compared to other treatments. Zero minutes of storage followed with sulfuric acid concentration as much as 0.67% gave the highest dry plant weight of 28.193 g.Key words: Jarak seed, Concentration H2SO4, Seed saving time
UJI KETAHANAN VARIETAS PADI LOKAL JAWA BARAT DAN RESPONNYA TERHADAP PEMBERIAN GIBERELIN PADA KONDISI CEKAMAN RENDAMAN SEBAGAI UPAYA PENINGKATAN PRODUKSI DI LAHAN RAWAN BANJIR Lia Sugiarti; Kovertina Rakhmi Indriana; Roni Assafaat Hadi
Jurnal Agroekoteknologi Vol 9, No 2 (2017)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/j.agrtek.v9i2.5110

Abstract

This research was aimed to examines the effect of gibberellin concentration on germination, growth and yield components of rice varieties in flood prone areas. Based on the objective, the nature of this research was verification by experimental approach in screen house and in the field. The research was conducted in the screen house and in the field of production garden of the Faculty of Agriculture of Winaya Mukti Tanjungsari - Sumedang, with a height of 850 m asl. Experiments used Randomized Completely Block Design as factorial pattern, which consisted of two factors namely four levels of gibberellin concentration and five levels of local rice varieties of West Java. Each treatment was repeated twice, then the total amount: 4 x 5 x 2 = 40 plots. Based on the results of research and discussion that had been described in the previous, it could be drawn conclusions on germination, growth and yield components of flood prone land, including: (1) there was an interaction between the various local rice varieties of West Java and the level of gibberellin concentration to the inundation stress on the ratio of root dump at age 40 day after planting, (2) the concentration of gibberellin 10 mg.L-1 gave the best results on observations for each local varieties of egypt and varieties Mareum on the root-to-dose ratio of 40 days after planting and Varieties of rice plants independently effect the number of sprouts aged day after planting, seed vigor, root length of roots, plant height 40 days after planting, and number of tillers per hump of 40 days after planting.Keywords: Rice varieties, Flooded plains, Giberelin acid
TEKNIK PEMATAHAN DORMANSI BENIH DAN PERTUMBUHAN JARAK PAGAR (Jatropha curcas L.) KULTIVAR IP-3P MELALUI PEMBERIAN GIBERELIN DAN BERBAGAI POSISI MIKROPIL DI PERSEMAIAN Deby Juliana; Kovertina Rakhmi Indriana; Lia Amalia
Jurnal Agroekoteknologi Vol 13, No 2 (2021)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jur.agroekotetek.v13i2.13154

Abstract

This research aims to study and determine the technique of breaking the dormancy of Jatropha seeds by giving gibberellins (GA3) and various planting positions on the growth of Jatropha seeds in the nursery. The research was carried out from June-August 2020. The experimental design used was a simple randomized block design with a combination of GA3 concentrations and seed positions with 18 treatment combinations. Each was repeated two times. The results showed that giving gibberellin concentration at different planting positions did not have an effect on germination parameters, but it did affect growth parameters. All concentrations of GA3 had no effect on seed germination, seed growth rate and vigor index, but the concentration of 500 mg L-1 at various planting positions had a better effect on plant height, number of leaves, stem diameter, fresh weight and plant dry weight Jatropha in the nursery. 
Co-Authors Adi Sopian Ai Komariah -, Ai Komariah Beni Komara Budiasih Budiasih Budiasih Cucu Suherman Deby Juliana Deby Juliana Dede Iskandar, Dede Grima Kharisma Yuliani Harun Sujadi Ida Marina, Ida Iskandar, Hervyaningsih Juliana, Deby Khofiyya, Nida Koswara, Engkos Lia Amalia Lia Amalia LIA AMALIA Noertjahyani Noertjahyani R Budiasih Rahma Winahyu Adi Restu Ramadhan, Dinda Ria, Elly Roosma Ricky Hasrat Dirmawan Roni Assafaat Hadi Rosalina Fitria Santi Rosniawaty Shinta Nurhasanah Sugiarti, Lia Sukmayana, Dodi Sumadi Sumadi Sumadi Sumadi Suparman Suparman Tien Turmuktini widodo, R. wahyono Wulan Julia Wati