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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Penelitian Pertanian Terapan Kultivasi Planta Simbiosa : Jurnal Tanaman Pangan dan Hortikultura Jurnal abimana (Jurnal Pengabdian Kepada Masyarakat Nasional)
Ratna Dewi
Politeknik Negeri Lampung Jln. Soekarno- Hatta, Rajabasa Bandar Lampung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Immunology & microbiology

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QUALITY AND FRUIT PRODUCTION IMPROVEMENT USING THE CULTIVATION TECHNOLOGY SYSTEM "TOPAS" IN 12 VARIETIES OF HYBRID WATERMELONS Wahyudi, Anung; Dewi, Ratna
Jurnal Penelitian Pertanian Terapan Vol 17, No 1 (2017)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v17i1.4

Abstract

The quality and production of watermelon in Indonesia is low relatively. We introduced "ToPAS" (toping, pruning, arranging and selection), the innovation of cultivation technology in an effort to improve the quality and production of watermelon. Our study was conducted in State Polytechnic of Lampung yield trials from May~August 2014, and used 12 varieties of hybrid watermelons with randomized block design two factors. The results of variance analyses in "ToPAS" system showed that productivity of watermelon fruit (oval and round type) are higher compared with conventional cultivation systems. We suggested using "ToPAS" system in watermelon cultivation to improve the cultivation technology, increasing quality and production of watermelon fruit. ?ToPAS? also suggested for watermelon breeding program.Key word : cultivation, production, ToPAS, watermelon
PEMULIHAN DETERIORASI BENIH KEDELAI (GLYCINE MAX L.) DENGAN APLIKASI GIBERELIN Dewi, Ratna; Sutrisno, Hery; Nazirwan, Nazirwan
Jurnal Penelitian Pertanian Terapan Vol 13, No 2 (2013)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v13i2.174

Abstract

The purpose of this study to determine the role of gibberellins in enhancing the quality of soybean seeds that have experienced deterioration / decline. This research is using a complete randomized group design (RKTL) two factors. The first factor is pengusangan soaking seeds with 20% ethanol. P0 = Without soaking, P1 = Immersion 15 minutes. P2 = Immersion 30 minutes. The second factor is the provision of gibberellins with gibberellin soaking treatment for 2 hours. G0 = without soaking gibberellins, gibberellin soaking G1 = 20 ppm. Each treatment was repeated 3 times. Analysis of data using analysis of variance and to know the difference between treatments, conducted LSD (Least Significant Difference). Each with a real level of 5%. The results are: 1). Application gibberellins showed no recovery of seed deterioration, because pengusangan seeds with ethanol has not shown any significant effect on seed deterioration. 2). Application giberelin the percentage of seed germination and seed vigor percentage lower that 66, 62% and 44.00% compared with that without the application of gibberellins 91.22% and 66.67%, due to the application of gibberellins, sprouts many broke. Might be due to cell division and enlargement of the seed is not offset by the formation of cell walls, so that the cell wall is weak and vulnerable to fractures sprouts 3). Application gibberellins produce a longer hypocotyl length 10.69 cm compared to that without the application of gibberellins that is 7.94 cm. 4). Application gibberellins produce root length is shorter on the 7.73 cm compared to 8.10 cm without the application of gibberellins Keywords: Deterioration, Soybean, Gibberellin
Quality and Fruit Production Improvement Using The Cultivation Technology System "ToPAS" In 12 Varieties of Hybrid Watermelons Anung Wahyudi; Ratna Dewi
Jurnal Penelitian Pertanian Terapan Vol 17 No 1 (2017)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (494.442 KB) | DOI: 10.25181/jppt.v17i1.4

Abstract

The quality and production of watermelon in Indonesia is low relatively. We introduced "ToPAS" (toping, pruning, arranging and selection), the innovation of cultivation technology in an effort to improve the quality and production of watermelon. Our study was conducted in State Polytechnic of Lampung yield trials from May~August 2014, and used 12 varieties of hybrid watermelons with randomized block design two factors. The results of variance analyses in "ToPAS" system showed that productivity of watermelon fruit (oval and round type) are higher compared with conventional cultivation systems. We suggested using "ToPAS" system in watermelon cultivation to improve the cultivation technology, increasing quality and production of watermelon fruit. “ToPAS” also suggested for watermelon breeding program.Key word : cultivation, production, ToPAS, watermelon
Karakter Agronomi dan Daya Hasil Tiga Klon Ubi Jalar Ungu (Ipomoea batatas) di Lahan Masam Lampung Ratna Dewi; Hery Sutrisno
Jurnal Penelitian Pertanian Terapan Vol 14 No 1 (2014)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (99.571 KB) | DOI: 10.25181/jppt.v14i1.137

Abstract

Sweet potato is one of the alternative foods of rice that can be grown on a variety of soil conditions and almost fits on all altitude. Sweet potato clones with purple tuber contains anthocyanins which are antioxidants for our bodies. Purple sweet potato clones include: Varieties Ayamurasaki, Antin and local Purple Lampung. Ayamurasi is the introduction of the Japanese varieties, Antin was the result of the assembly and Purple Balitkabi Malang local is local varieties Lampung. To know the character of the growth and yield of sweet potato are three clones in acidic soil, it is necessary to test for these clones. This study was conducted at California State-owned plantation practices Lampung from May to November in 2011. The study used a randomized complete group (RKTL). Three clones of sweet potato used is Ayamurasaki Clones, Clone-1 and Clone Antin Local Purple Lampung, each repeated 4 times, so there are 12 experimental units. The data were analyzed by analysis of variance, and to know the difference between treatments done LSD a real level of 5% respectively. The conclusion of this research are: 1. There are differences between clones Antin agronomic character-1, Ayamurasaki, and Purple Local Lampung, 2. In acidic soil Lampung, Antin-1 clones are not resistant to stem borer attack and ladybugs (Omphisa anastomasalis), 3. Local Purple Clones Lampung has advantages in production and pest resistance, and has a good adaptation to the acidic soil Lampung, 4. Local Purple Lampung clones producing the highest production which amounted to 878.33 g per plant, followed by clones and clones Ayamurasaki Antin-1, each of which produces a production of 590 g and 166.67 g per plant Keywords: Character, Purple sweet potato, Acidic soil
Peningkatan Produksi dan Protein Kedelai dengan Aplikasi Bokasi dan Rhizo-Plus di Lahan Podsolik Merah Kuning Ratna Dewi
Jurnal Penelitian Pertanian Terapan Vol 11 No 1 (2011)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (43.867 KB) | DOI: 10.25181/jppt.v11i1.220

Abstract

Efforts to increase production and soy protein are often constrained by the condition of land that are sour that cause failure in the form of nodules which is the organ to tie up nitrogen air. Fermented organic material which is fermented by microorganisms Efectif useful to enrich the soil, while the rhizo-plus is a useful microbe fertilizers increase the yield through the appropriate rhizobium strains. Microorganisms contained in the fermented and rhizo-plus to increase the supply of the element of N and P for plants. This study aims to determine the influence of fermented and rhizo-plus in increasing production and protein content of soybeans. Treatments consisted of a single factor that is prepared in a randomized group design Perfect .The treatments were: chemical fertilizer application (A1), the application rhizo-plus +1 / 2 SP36 + KCl (A2), fermented application (A3), and the application of fermented + rhizo-plus (A4). Each treatment was repeated three times. Data were analyzed with ANOVA and if there are differences in the median value of treatment followed by Least Significant Difference test (LSD), each at level 5%. Results showed the application fermented and rhizo-plus did not affect significantly to the number of branches per plant, number of books per plant and number of nodules per plant. Applications fermented in combination with rhizo-plus (A4) gives results of seeds per plant and per plot is more severe compared with other treatments ie weighing 32.39 g per plant and 6:48 kg per plot. While the application of chemical fertilizers alone (A1), Rhizo-plus + ½ SP-36 + KCl (A2), and fermented (A3), not significantly different, ie, each weighing 4.68 kg and g 23:39, 21:27 and 4:25 g kg; 27.68 g and 4.68 kg. Applications rhizo-plus +1 / 2 SP36 + KCl on soybean plants (A2) has a higher soy protein content compared with other treatments which is equal to 28.21%, while the other applications in a row A1 = 26.22%, A3 = 25.60%; and A4 = 26.92%. Protein content of the results of this research is still relatively low compared with soy in general description. Keywords: Production, Soybean Protein, Bokasi and Rhizo-plus
Kandungan β-Karoten dan Produksi Plasma Nutfah Ubi Jalar Lokal Lampung pada Umur Panen yang Berbeda: β-Carotene Content and Germplasm Production of Local Sweet Potatoes in Lampung at Different Harvest Ages Ratna Dewi; Ari Wahyuni; Hasan Basri
J-Plantasimbiosa Vol 4 No 1 (2022)
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jplantasimbiosa.v4i1.2518

Abstract

Sweet potato (Ipomoea batatas L.) with orange flesh enriched with β-carotene andvitamin A can help combat vitamin A deficiency and malnutrition, especially forcommunities in developing countries. The purpose of this study is to select local sweetpotatoes from Lampung which contain β-carotene and to determine an appropriate harvestage to obtain high β-carotene content and production. The study was conducted at theLampung State Polytechnic using a randomized block design (RAK) repeated 2 times.The treatments consisted of 30 genotypes of sweet potato germplasm and 2 harvest ages(3 months after planting and 4 months after planting). The 30 genotypes were selectedbased on flesh color (yellow to dark orange), then tested for β-carotene content andproduction at 3 months and 4 months of harvest. The results showed that from 30genotypes, there were 16 genotypes that had yellow to dark orange flesh color. Thecontent of β-carotene, tuber weight per plant, and number of tubers per plant were higherat 4 months harvest than 3 months harvest. The LPG-01 genotype (Local Lampung) at 3months of harvest had a higher β-carotene content than the other genotypes, which was1,902 µg /100g, while at 4 months the β-carotene content was almost equivalent to theBeta-1 genotype, but higher when compared with other genotypes with 40,493 µg /100g.Genotype of LPG 01 had tuber weight (1,191.90 g per plant) and the number of tubers(5.63 bulbs per plant) higher than the other genotypes. Key words: β-carotene, production, sweet potato, harvest age.
Mutu Fisiologis Benih Kedelai Hitam Hasil Iradiasi Sinar Gamma Selama Periode Simpan Tri Yulita Dewi; Siti Novridha Andini; Onny Chrisna Pandu Pradana; Ratna Dewi
Planta Simbiosa Vol 5 No 1 (2023)
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jplantasimbiosa.v5i1.2986

Abstract

Soybean seeds are stored before being planted in the field, during this storage period the seeds can experience deterioration, if not stored in appropriate environmental conditions, seed deterioration will occur more quickly and can reduce the physiological quality of the seeds. The research aims to determine the physiological quality of gamma-ray irradiated black soybean seeds during the storage period. This study used a non-factorial completely randomized design , with control/no irradiation treatment of 0 Gy (R0) and 5 doses of gamma irradiation, including: 50 Gy (R1), 100 Gy (R2), 150 Gy (R3), 200 Gy (R4), 250 Gy (R5), each treatment was repeated four times. The variables observed were electrical conductivity test, seed germination, growing district, germination height, vigor index, and growing simultaneity. The results showed that the higher the dose of irradiation, the lower the percentage of seed germination, and the lower the physiological quality. Key word: Seed storage, Black soybean, Irradiation
Respons Agronomi dan Fisiologi Genotipe Padi (Oryza sativa L.) pada Budi Daya Berkelanjutan Subarjo, Subarjo; Dulbari, Dulbari; Dewi, Ratna
Jurnal Ilmu Pertanian Indonesia Vol. 29 No. 4 (2024): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.29.4.605

Abstract

Efforts to maintain rice production in the future face many challenges, including the availability of increasingly narrow land, attacks by plant pest organisms, and declining land fertility due to improper cultivation systems. More than 70% of rice fields are in a disturbed ecological status due to cultivation technology that could be more environmentally friendly, which can interfere with the sustainability of rice self-sufficiency. An environmentally friendly rice cultivation system needs to be developed. This study aims to measure the agronomic and physiological responses of 3 rice genotypes in sustainable cultivation systems. The experiment used a Group Random Design on 3 rice genotypes (black, red, and white) in both conventional and sustainable cultivation systems. The research was carried out in the experimental garden of Polinela Organic Farm, Lampung State Polytechnic, from September 2020 to September 2021. The results showed that the plant, leaf greenery, number of tillers, number of panicles, grain weight per panicle, and biomass weight were not significantly different between conventional and sustainable cultivation. At the same time, the harvest and production indices per hectare were significantly different. The physiological responses to the photosynthesis and transpiration rates differed markedly in conventional and continuous cultivation. In contrast, the conductance of stomata did not differ significantly in both cultivation systems. The red rice genotype is the best, and it has a broader adaptation to conventional and sustainable cultivation systems. Keywords: agronomy, conventional sysem, physiology, rice genotype, sustainable system
Comparative study of rice morphological and physiological characteristics of rice grown under organic and inorganic farming Safrudin, Amad; Dewi, Ratna; Dulbari, Dulbari
Kultivasi Vol 23, No 3 (2024): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v23i3.55286

Abstract

Organic farming practices have shown a potential to improve rice yields, aside from the popular conventional ones. This study aimed to comparatively analyze the morpho-physiological characteristics of rice plants grown under organic and inorganic farming. This research was conducted at the Polinela Organic Farm experimental station (5°21'10"S 105°13'43"E, 114 m sea above level), from February to April 2023 using a completely randomized design. The results showed that rice grown organically exhibited a notably higher chlorophyll index and actual water use efficiency compared to those grown inorganically. Conversely, inorganic farming resulted in a greater number of tillers than organic farming. However, there were no significant differences between the two systems regarding CO2 efficiency and plant height. An interesting fact is the improved water use efficiency by organic farming helps rice plants to achieve similar growth performance while requiring less water.
Transfer Teknologi Pengembangan Bibit Buah Alpukat Unggul Lokal Dengan Metode Sambung Pucuk Pada CV. Jaya Mandiri Agro, Pekalongan, Lampung Timur Septiana, Septiana; A Hakim, Nurman; Chrisna P Pradana, Onny; Dewi, Ratna; Putri, Ria; H Zaini, Akbar; N Andini, Siti; Wahyuni, Ari
Jurnal Abimana (Jurnal Pengabdian Kepada Masyarakat Nasional) Vol 1 No 2 (2024): Desember
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/abimana.v1i2.3944

Abstract

Bibit alpukat unggul lokal dapat dikembangkan dengan cara bermitra dengan penangkar benih/produsen bibit atau kelompok tani. CV Jaya Mandiri Agro merupakan perusahaan yang bergerak dalam bidang perdagangan dan produksi tanaman secara vegetatif khususnya dibidang tanaman Hortikultura dan bertempat di desa Badransari, Tulusrejo, Kecamatan Pekalongan, Kabupaten Lampung Timur, Provinsi Lampung. Pengembangan bibit alpukat unggul lokal perlu dilakukan guna melestarikan sumber daya genetik unggul serta dapat dijadikan sebagai calon bibit unggul untuk didaftarkan sebagai varietas lokal. Metode perbanyakan bibit alpukat salah satunya adalah dengan cara metode sambung pucuk. Metode perbanyakan dengan cara termasuk ke dalam metode perbanyakan secara vegetatif, dengan keunggulan akan menghasilkan keturunan yang memiliki sifat yang sama dengan induknya. Selain mudah untuk dilakukan oleh petani, metode perbanyakan dengan cara sambung pucuk tidak memerlukan biaya yang besar. Oleh karena itu, pada program pengabdian ini akan dilakukan transfer teknologi kepada CV Jaya Mandiri Agro mengenai pengembangan durian unggul lokal Lampung dengan metode sambung pucuk. Dengan adanya kegiatan ini ini diharapkan dapat meningkatkan pengetahuan dan ketrampilan praktis sambung pucuk alpukat unggul lokal Lampung.
Co-Authors A Hakim, Nurman Anung Wahyudi Ari Wahyuni Ari Wahyuni Chrisna P Pradana, Onny Dulbari, Dulbari H Zaini, Akbar Hasan Basri Hery Sutrisno Hery Sutrisno, Hery N Andini, Siti Nazirwan Nazirwan, Nazirwan Onny Chrisna Pandu Pradana Ria Putri, Ria Safrudin, Amad SEPTIANA SEPTIANA siti novridha andini subarjo, Subarjo Tri Yulita Dewi