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Pengaruh Pengaplikasian PGPR (Plant Growth-Promoting Rhizobacteria) terhadap Pertumbuhan dan Hasil Padi (Oryza sativa L.) Varietas Lokal di Desa Jatiluwih NI WAYAN DITA ALVIANI; NI LUH MADE PRADNYAWATHI; ANAK AGUNG MADE ASTININGSIH
Agrotrop : Journal on Agriculture Science Vol 13 No 1 (2023)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2023.v13.i01.p09

Abstract

Effect of PGPR (Plant Growth-Promoting Rhizobacteria) Application on Growth and Yield of Local Rice (Oryza sativa L.) Varieties in Jatiluwih Village. The decline in local rice production in Jatiluwih Village needs to be overcome to meet the needs of the community, one method that can be used is the application of PGPR. This study aims to determine the differences in the effect of cultivation with PGPR application and without PGPR application on the growth and yield of local rice varieties and to find out which local rice varieties shows the highest yields. This study used a paired experiment that compared cultivation with and without PGPR application on four local rice varieties, namely Cicih, Cendana, Ketan and Mansur varieties. The results of the analysis showed that the application of PGPR in the cultivation of Jatiluwih local rice varieties was able to increase the average value of plant height, number of leaves per clump, leaf chlorophyll content, total number of tillers per clump, number of productive tillers per clump, panicle length, total grain per panicle, good grain per panicle and yield, respectively 1.66%, 16.89%, 5.97%, 18.79%, 15.65%, 11.54%, 25.65%, 30.55% and 10.53% when compared to cultivation without PGPR application. The Local varieties of Jatiluwih rice that showed the highest yield when compared between cultivation with PGPR application and without PGPR was the red rice variety Cicih, which increased by 19.27% ??from the previous 5.45 ton/ha to 6.50 ton/ha, while in Cendana variety only increased by 5.76%, Kentan variety increased by 11.33%, and Mansur variety increased by 5.57% after PGPR was applied.
Pengaruh Penambahan Gula dan Tepung Terigu pada Media Tanam Dasar terhadap Pertumbuhan dan Hasil Jamur Tiram (Pleurotus ostreatus) PUTRI REZKY; NI LUH MADE PRADNYAWATHI; IDA AYU PUTRI DARMAWATI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.4, Oktober 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The Effect of Sugar and Flour Addition into the Basic Planting Media on the Growth and Yield of Oyster Mushrooms (Pleurotus ostreatus) The purpose of this study was to get the best composition from the addition of sugar and wheat flour to the basic growing media for the growth and yield of oyster mushrooms. The research was conducted from May to October 2020 at the UPTD Balai Benih Induk Tanaman Pangan dan Hortikultura, Desa Luwus, Tabanan, Bali. This study used a Complete Randomized Design (CRD) of one factor, namely the mixed material of the planting media. The treatment in this study consisted of: basic planting media with added sugar and wheat flour (sawdust, bran, chalk, sugar, and wheat flour), basic planting media with added sugar (sawdust, bran, chalk, and sugar), basic planting media with the addition of wheat flour (sawdust, bran, chalk, and wheat flour) and basic planting media (sawdust, bran, and chalk). According to the results of research and analysis, it can be concluded that the addition of granulated sugar to the basic planting media of oyster mushroom caused the growth of the mycelium was longer and the size of the hood and the length of the stalk was smaller. The addition of wheat flour to the basic planting media caused the number of oyster mushroom fruit bodies to be less, but has a large hood size. The addition of granulated sugar and wheat flour to the basic growing media of oyster mushrooms caused in a faster total growth time of the mycelium, larger hood size and stalk length, but has fewer fruit bodies and a light wet weight.
PENGARUH BEBERAPA METODE PERENDAMAN TERHADAP PEMATAHAN DORMANSI BENIH PADI (Oryza sativa L.) VARIETAS CIHERANG Ni Luh Rai Yuli Ardani; Anak Agung Made Astiningsih; Ni Luh Made Pradnyawathi
Plumula : Berkala Ilmiah Agroteknologi Vol. 10 No. 1 (2022): Plumula : Berkala Ilmiah Agroteknologi
Publisher : Agrotechnology Study Program, UPN "Veteran" Jawa Timur

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Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh beberapa metode perendaman terhadap pematahan dormansi serta metode yang mampu mempercepat pematahan dormansi benih padi varietas Ciherang. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap satu faktor yaitu metode perendaman dengan 5 taraf perlakuan: metode tanpa perendaman (P0), metode perendaman menggunakan air bersuhu 30 °C selama 24 jam (P1), metode perendaman menggunakan air panas dengan suhu awal 60°C selama 24 jam (P2), metode perendaman menggunakan larutan GA3 dengan konsentrasi 0,5 ppm selama 24 jam (P3), dan metode perendaman menggunakan larutan KNO3 dengan konsentrasi 3% selama 48 jam (P4) dengan lima kali ulangan. Penelitian dilaksanakan di Laboratorium Pemuliaan Tanaman dan Teknologi Benih Fakultas Pertanian Universitas Udayana pada bulan September 2020 sampai November 2020. Hasil penelitian menunjukkan metode perendaman berpengaruh sangat nyata terhadap variabel daya kecambah (%), potensi tumbuh maksimum (%), intensitas dormansi (%), dan kecepatan berkecambah (%/etmal), serta berpengaruh nyata terhadap pertumbuhan jamur benih (%). Perlakuan P3 mampu mematahkan dormansi benih padi selama 5 minggu pengamatan dengan nilai daya kecambah tertinggi (95,16%) dan memperoleh nilai intensitas dormansi terkecil (4,56%) lebih baik dibandingkan dengan perlakuan P0 tanpa perendaman (kontrol) memperoleh nilai daya kecambah sebesar (7,76%) dan nilai intensitas dormansi sebesar (89,52%). Kecepatan berkecambah tertinggi diperoleh pada perlakuan P3 dan P4 yaitu masing-masing (6,08%/etmal) dan (3,35%/etmal).
Pengaruh Konsentrasi Pupuk Organik Cair Kulit Pisang Kepok terhadap Pertumbuhan dan Hasil Tanaman Bayam Merah (Amaranthus tricolor L.) Natania, Inggrid Olivia; Pradnyawathi, Ni Luh Made; Astawa, I Nyoman Gede
Agrotrop : Journal on Agriculture Science Vol 14 No 1 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

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Effect of Concentration of Kepok Banana Peel Liquid Organic Fertilizer on Growth and Yield of Red Spinach (Amaranthus tricolor L.). This study aims to determine the effect and the best concentration of kepok banana peel liquid organic fertilizer which gave the highest growth and yield for red spinach (Amaranthus tricolor L.). This study used a completely randomized design (CRD) with 6 treatments, namely 0, 10, 20, 30, 40 and 50 ml/l with 4 repetitions. The research was conducted in the greenhouse of the Experimental Garden of the Faculty of Agriculture and Agronomy and Horticulture Laboratory, Udayana University from November 2022-February 2023. The application of fertilizer had an effect and a concentration of 50 ml/l was the best concentration which gave the highest yield which increased plant height 29 dap 139% (19.48 cm), number of leaves 29 dap 358.06% (35.50 strands), leaf area 875.30% ( 39.50 cm2), root length 154.39% (26.33 cm), fresh weight of plant tops 407.83% (26.56 g), oven dry weight of tops of plants 493.54% (3, 68 g), root fresh weight 389.7% (12.83 g), root oven dry weight 103.22% (1.26 g), root shoot ratio 168.31% (2.71) and leaf chlorophyll content 220 .85% (25.38 units) compared to control (8.15 cm, 7.75 strands, 4.05 cm2, 10.35 cm, 5.23 g, 0.62 g, 2, 62 g, 0.62 g, 1.01 and 7.91 units).
Pengaruh Penambahan POC Ampas Teh terhadap Pertumbuhan dan Hasil tanaman pakcoy (Brassica rapa L.) Secara Hidroponik Sistem Sumbu Butar, Adril Persada Butar; Pradnyawathi, Ni Luh Made; Wijana, Gede
Agrotrop : Journal on Agriculture Science Vol 14 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2024.v14.i02.p09

Abstract

The Effect of Additioning Tea Waste LOF on Growth and Products of Pakcoy (Brassica rapa L.) Plants by Wick System Hydroponic. Pakcoy (Brassica rapa L.) is one of the vegetables that can be cultivated using a hydroponic system. The wick hydroponic system is one of the hydroponic techniques used in vegetable cultivation, involving the use of standing water in the installation and passive flow circulation. The nutrients commonly used in hydroponic cultivation are the AB Mix nutrient solution. However, the use of liquid organic fertilizer (LOF) in hydroponic vegetable cultivation is an important consideration to reduce the use of inorganic fertilizers. The research objective is to determine the growth response of pakcoy cultivation with the addition of tea waste LOF, which contributes to the growth and yield of pakcoy plants. This study utilized a Completely Randomized Design (CRD) with six levels, namely 0 ml/L, 2 ml/L, 4 ml/L, 6 ml/L, 8 ml/L, and 10 ml/L, each with four replications. The research was conducted in the Experimental Greenhouse and Agronomy and Horticulture Laboratory, Faculty of Agriculture Udayana University from February to May 2023. The treatment of 10 ml/L was found to be the best concentration for the addition of tea waste LOF in promoting the growth and yield of pakcoy plants in the wick hydroponic system. The results of the regression analysis for fresh canopy weight and oven dry canopy weight have not revealed an optimal concentration. This is due to the presence of a positive linear relationship with the concentration of tea waste LOF, indicating that both weights will increase with an increase in concentration.
Pengaruh Jenis Biochar dan Kompos terhadap Aktivitas Mikroorganisme Tanah Soniari, Ni Nengah; Sutari, Ni Wayan Sri; Pradnyawathi, Ni Luh Made
Agrotrop : Journal on Agriculture Science Vol 13 No 3 (2023)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2023.v13.i03.p08

Abstract

The Effect of Biochar Types and Compost on Soil Microorganism Activities. This research was carried out at the plastic house of Pasraman Unud Jimbaran from January to June 2021. The type of biochar used come from waste materials such as bamboo, rice husks, coconut shells, and corn cobs, while the compost was selected according to Indonesian National Standards. The purpose of this study was to determine the biochar material from several wastes combined with compost in supporting the activity of soil microorganisms as well as the N, P, K, pH and C-organic soil. The experimental design used in this study was a Simple Completely Randomized Design with 9 treatments and 3 replications so that it became 27 experimental units. The experimental treatments consisted of: B0 (control); B1 (1.5% rice husk biochar/ha); B2(1,5% biochar bamboo/ha); B3 (1.5% corncob biochar/ha); B4 (1.5% coconut shell biochar/ha); B5 (0.75% rice husk biochar + 0.75% compost)/ha; B6 (0.75% bamboo biochar + 0.75% compost)/ha; B7 (0.75% corncob biochar + 0.75% compost)/ha; B8 (0.75% coconut shell biochar + 0.75% compost/ha). Monitoring of media humidity is carried every 2 days and stirring once a week. Observations were made at the end of the incubation period (35 days) on soil respiration, C-organic, N-total and pH. The results showed that the highest activity of microorganisms occurred in the B6 treatment (0.75% bamboo biochar + 0.75% compost)/ha. The addition of (biochar + compost) to the soil gave a significantly different effect on organic C and total soil N.
Optimizing Seedling Density per Planting Hole of Lettuce (Lactuca sativa L. var. longifolia) in a Deep Flow Technique Hydroponic System Febriana, I Gede; Wijana, Gede; Sukewijaya, I Made; Darmawati, Ida Ayu Putri; Pradnyawathi, Ni Luh Made
Agro Bali : Agricultural Journal Vol 8, No 3 (2025)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v8i3.2441

Abstract

Market demand for baby romaine lettuce (Lactuca sativa L. var. longifolia) continues to rise alongside the public’s growing preference for healthy lifestyles, yet its productivity still needs improvement. This study aims to evaluate the effect of seedling density per planting hole on the growth and yield of baby romaine lettuce using the Deep Flow Technique (DFT) hydroponic system and to determine the optimal number of seedlings. The experiment was conducted in a greenhouse in Pelaga Village, Bali, using a completely randomized design (CRD) with a single factor comprising five seedling densities (1, 2, 3, 4, and 5 seedlings per hole) and six replications, totaling 120 plants.  Growth and yield parameters were analyzed using ANOVA and LSD at a 5% significance level, with regression applied to fresh shoot and crop weight. Results showed that increasing the number of seedlings significantly affected plant height, stem diameter, chlorophyll content, fresh and dry shoot weight, and total fresh biomass. Shoot fresh weight increased linearly (Y = 97.86 + 11.71X; R² = 0.975), while crop fresh weight followed a quadratic trend (Y = 70.64 + 8.10X – 1.00X²; R² = 0.863), with the optimal yield obtained at three seedlings per hole. It is concluded that planting three seedlings per hole offers the best outcome in terms of both quality and quantity in a DFT hydroponic system.
Genetic diversity and relationships among native Dendrobium species from Bali, Indonesia, using SSR markers DARMAWATI, IDA AYU PUTRI; DWIYANI, RINDANG; PRADNYAWATHI, NI LUH MADE; FITRIANI, YUYUN; LISTIHANI, LISTIHANI; KAMUHI, RINI HERMINA
Asian Journal of Agriculture Vol. 9 No. 2 (2025)
Publisher : Smujo International

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/asianjagric/g090258

Abstract

Abstract. Darmawati IAP, Dwiyani R, Pradnyawathi NLM, Fitriani Y, Listihani L, Kamuhi RH. 2025. Genetic diversity and relationships among native Dendrobium species from Bali, Indonesia, using SSR markers. Asian J Agric 9: 917-924. Bali, Indonesia, has significant potential for the development of orchid cultivation, particularly through the production of hybrids that meet market preferences. Among various orchid genera, Dendrobium holds major economic and horticultural importance due to its wide adaptability, aesthetic value, and high demand in both domestic and international markets. Wild Dendrobium species represent an invaluable source of germplasm that can be used for interspecific hybridization and the development of new cultivars with desirable characteristics such as flower color, shape, and durability. However, the lack of information on the genetic diversity of native Dendrobium species in Bali limits their effective use in breeding and conservation programs. This study aimed to evaluate the genetic diversity and relationships among 24 native Dendrobium species collected from 12 forest areas across Bali using Simple Sequence Repeat (SSR) markers. The molecular analysis revealed high genetic variation, with 86.21 percent of loci showing polymorphism and moderate heterozygosity across populations. Genetic similarity coefficients among species ranged from 0.66 to 0.97. The highest genetic similarity was observed between Dendrobium sp. Wanagiri and Dendrobium sp. Sepang, while D. fimbriatum was identified as the most genetically distinct species. These findings demonstrate a broad genetic base among Bali’s native Dendrobium species, indicating their strong potential as parental resources in hybrid breeding programs. The study also provides valuable molecular data that support the conservation and sustainable utilization of Bali’s native orchid germplasm for future cultivation and breeding initiatives.
Co-Authors ALPREDO CHRISTIAN STOMPUL Anak Agung Gede Sugiantara Anak Agung Gede Sugianthara ANAK AGUNG MADE ASTININGSIH B.R.T. Putri Butar, Adril Persada Butar Cokorda Gede Alit Semarajaya Doksa Safira Tarigan Febriana, I Gede Gede Menaka Adnyana GEDE WIJANA HENRIETTO INNOSENSIUS PRASETYO HESTIN YUSWANTI I Dewa Gede Agung Surya Pranditha I Dewa Nyoman Nyana I DEWA PUTU SINGARSA I Gede Angga Pradipta I Gede Ketut Susrama I Gusti Agung Ayu Rai Asmiwyati I GUSTI ALIT GUNADI I GUSTI MADE KUSUMA ARDANA I GUSTI NGURAH MANIK SEDANA PUTRA I GUSTI NGURAH RAKA I I.A.L. Dewi I KETUT ARSA WIJAYA I Ketut Sardiana I Made Rai Semara Yasa I Made Sarjana I Made Sukewijaya I NYOMAN GEDE ASTAWA I NYOMAN SUTEDJA I Putu Agus Juliarta Eka Putra I Putu Ngurah Aditya Nugraha I WAYAN JUNARTA I.A. L. Dewi I.A.L. Dewi Ida Ayu Listiya Dewi IDA AYU MAYUN Ida Ayu Modasih Istacahyani Ida Ayu Putri Darmawati Ida Bagus Eka Permana Putra Kadek Sri Wulandhari KAMUHI, RINI HERMINA Listihani, Listihani Luh Putu Wrasiati Lury Sevita Yusiana MADE SRITAMIN MANUEL PATRICIO XIMENES N.N. Darniati N.N. Yastini NANIEK KOHDRATA Natania, Inggrid Olivia Ni Luh Kartini NI LUH MARTINI Ni Luh Rai Yuli Ardani NI MADE YULI HANDAYANI NI NENGAH DARMIATI NI NENGAH SONIARI NI NYOMAN ARI MAYADEWI NI WAYAN DITA ALVIANI Ni Wayan Sri Sutari Novia Andriyani NYOMAN WISNU RAHADI PAULA TIBURSIANA LOLI TENTI PUTRI REZKY Raraskova Dennira Rindang Dwiyani S.M. Sarwadana SANG MADE SARWADANA Tati Budi Kusmiyarti TRIAN WANGSA PURWANTO Xand Conery Prabowo Yuyun Fitriani ZULKARNAIN ZULKARNAIN