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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Pengabdian Magister Pendidikan IPA
Adin Novitasari
Universitas Jember
Agriculture, Biological Sciences & Forestry Education Engineering

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Pendampingan Pemanfaatan Larutan KNO3 terhadap Perkecambahan dan Pertumbuhan Awal Benih Padi di Desa Sumbersalak Kecamatan Ledokombo Kabupaten Jember Adin Novitasari; Sri Rejeki Utami; Aminatun Nisa; Ummi Sholikah; Ahmad Ilham Tanzil; Wahyu Indra Duwi Fanata; Tri Ratnasari; Yusuf Rachmandika
Jurnal Pengabdian Magister Pendidikan IPA Vol 9 No 1 (2026): Januari - Maret 2026
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v9i1.14442

Abstract

Farmers in Sumbersalak Village, Ledokombo, Jember Regency still depend on rice as the main commodity in their business. One important component that supports the success of rice cultivation is the availability of quality seeds. One obstacle faced in rice seed production is dormancy. One effort to improve the quality of seeds that have been stored for a long time is to give rice seeds special treatment in the hope of improving germination and early growth. The method used is participatory assistance, including dissemination of information, discussion, and direct practice of seed soaking. The activity was carried out in July 2025 at the Kenconowungu Farmer Group, involving 10 participants. The rice seeds were soaked in a 3% KNO3 solution for 24 hours. The results showed that the KNO3 treatment was effective as an invigoration technique that improved the physiological characteristics of the seeds, which had deteriorated during storage. The application of this technology was proven to increase the germination rate of local rice seeds to be faster and more uniform compared to those without treatment. Additionally, this assistance successfully improved farmers' understanding and independence in managing seeds in a practical and applicable manner.
Keragaman Genetik Bawang Putih Varietas Lumbu Kuning dan Lumbu Hijau Efek Iradiasi Sinar Gamma 60CO Adin Novitasari; Afifuddin Latif Adiredjo; Lita Soetopo
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 1 (2026): February 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i1.233-242

Abstract

Garlic has limited genetic variability because the offspring are phenotypically identical to the parent plant. One approach to increase variability is mutation breeding using gamma irradiation. This study aimed to evaluate the effects of different gamma-ray doses on growth characteristics, physiological traits, chromosome number, and to determine the LD₅₀ (lethal dose 50%) in Lumbu Kuning and Lumbu Hijau garlic varieties. The experiment was conducted from May to September 2021 in Ngroto Village, Pujon District, Malang Regency, using a single-plot design with observations on individual plants. Garlic bulbs were irradiated with gamma rays at doses of 0, 2, 4, 6, 8, and 10 Gy. The t-test analysis of the M0 generation indicated that gamma irradiation significantly affected growth parameters, including leaf length and width, number of leaves, and plant height, compared to the control. The lowest mean leaf length (7.81 cm), number of leaves (3.22), and plant height (12.32 cm) were observed in the Lumbu Hijau variety at 10 Gy, while the lowest leaf width (0.37 cm) occurred in Lumbu Kuning at 8 Gy, indicating phenotypic reduction at higher doses. The highest chlorophyll content (1,091 mg/g) was recorded in Lumbu Hijau treated with 8 Gy. Gamma irradiation also induced chromosomal abnormalities, including aneuploidy with chromosome numbers such as 2n=2x−1 and 2n=2x+4. These results demonstrate that low-dose gamma irradiation can generate useful variability for garlic improvement programs.
Co-Authors Adiredjo, Afifuddin Latif Ahmad Ilham Tanzil Aminatun Nisa Lita Soetopo Sri Rejeki Utami Tri Ratnasari Ummi Sholikah Wahyu Indra Duwi Fanata Yusuf Rachmandika