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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Unram Journal of Community Service (UJCS) Jurnal Ilmiah Mahasiswa Agrokomplek
I Wayan Sutresna
University of Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Social Sciences Other

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Optimalisasi Peningkatan Produktivitas Lahan Kering Melalui Penanaman Tumpangsari Jagung - Kacang Tanah Di Desa Mbawi Kabupaten Dompu A. Farid Hemon; I Gusti Putu Muliartha Aryana; I Wayan Sutresna; Kisman Kisman
Unram Journal of Community Service Vol. 4 No. 2 (2023): June
Publisher : Pascasarjana Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ujcs.v4i2.454

Abstract

The purpose of this activity is to increase the knowledge and skills of farmer groups to understand increasing the productivity of dry land by implementing corn-peanut intercropping cultivation. The program that has been implemented is the application of science and technology, with the stages of activities, namely: 1) dissemination activities on optimizing dry land with the corn-peanut overlapping technique, selecting peanut corn varieties that are adaptive to dry land and shade, as well as plant cultivation techniques on land dry. This activity was carried out with a system of lectures and discussions between the Extension Team and the Farmers' Group, and 2) a demonstration plot program involving farmers from the preparation/planning of the program to the implementation of the demonstration plots. Farmers directly participate in planting, maintaining, comparing, and evaluating whether the implemented program will provide benefits or not. The results of the activity showed that the farmers participating in the extension were very responsive to the corn-peanut intercropping dissemination activity. This is reflected in the enthusiasm of the participants in asking questions and the discussions between the participants or extension workers. In addition, participants were also active in participating in every stage of activities such as selecting good seeds, making demonstration plots, planting, stockpiling, weeding, pest and disease control, and harvesting activities. There is a process of technological transformation of corn-peanut intercropping on the dry land of Mbawi Village, Dompu District, Dompu Regency, with the hope that farmers will be able to utilize the dry land by intercropping. Intercropping can increase land productivity with a Land Equivalent Ratio (LER) value of 1.3 compared to corn monoculture and 3.1 compared to peanut monoculture
Optimalisasi Peningkatan Produktivitas Lahan Kering Melalui Penanaman Tumpangsari Jagung - Kacang Tanah Di Desa Mbawi Kabupaten Dompu A. Farid Hemon; I Gusti Putu Muliartha Aryana; I Wayan Sutresna; Kisman Kisman
Unram Journal of Community Service Vol. 4 No. 2 (2023): June
Publisher : Pascasarjana Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ujcs.v4i2.454

Abstract

The purpose of this activity is to increase the knowledge and skills of farmer groups to understand increasing the productivity of dry land by implementing corn-peanut intercropping cultivation. The program that has been implemented is the application of science and technology, with the stages of activities, namely: 1) dissemination activities on optimizing dry land with the corn-peanut overlapping technique, selecting peanut corn varieties that are adaptive to dry land and shade, as well as plant cultivation techniques on land dry. This activity was carried out with a system of lectures and discussions between the Extension Team and the Farmers' Group, and 2) a demonstration plot program involving farmers from the preparation/planning of the program to the implementation of the demonstration plots. Farmers directly participate in planting, maintaining, comparing, and evaluating whether the implemented program will provide benefits or not. The results of the activity showed that the farmers participating in the extension were very responsive to the corn-peanut intercropping dissemination activity. This is reflected in the enthusiasm of the participants in asking questions and the discussions between the participants or extension workers. In addition, participants were also active in participating in every stage of activities such as selecting good seeds, making demonstration plots, planting, stockpiling, weeding, pest and disease control, and harvesting activities. There is a process of technological transformation of corn-peanut intercropping on the dry land of Mbawi Village, Dompu District, Dompu Regency, with the hope that farmers will be able to utilize the dry land by intercropping. Intercropping can increase land productivity with a Land Equivalent Ratio (LER) value of 1.3 compared to corn monoculture and 3.1 compared to peanut monoculture
Genetic Parameters of Quantitative Characters OF Self-Produced Lines of the Fifth Generation of Corn Plants in Dry Land I Wayan Sutresna; I Wayan Sudika; Dwi Ratna Anugrahwati
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.15894

Abstract

This study aimed to determine the genetic diversity, heritability, and correlation of quantitative traits of the fifth generation (S5) of selfing lines of maize plants. The experiment was conducted in the dry land of Gumantar village, North Lombok, from February to May 2025. The design used in this experiment was a randomized block design. The number of treatments was 30 S5 lines. Each treatment was repeatedThe experiment was conducted twice, resulting in 60 experimental units. Eleven quantitative characters were observed, consisting of growth variables, yield components, harvest age, and yield. The experimental data were analyzed using analysis of variance at a significance level of five percent. The correlation between characters and yield was calculated using Pearson rank correlation. The results showed that six quantitative characters of the S5 line had narrow genetic diversity and six characters had moderate criteria; with genetic diversity coefficients ranging from 1.56 for harvest age and 13.02 for yield. The broad-sense heritability of 1,000-grain weight was high, six characters were moderate, and the rest were narrow. The yield character was strongly correlated with the harvested dry cob weight per plant; with cob length being moderately correlated; four characters were weakly correlated, and the other characters were not correlated with yield. The plants selected to form the sixth selfing generation were taller plants with narrower leaf angles and flowering simultaneously
Keragaman Genetik dan Heritabilitas Karakter Kuantitatif Galur S5 Tanaman Jagung (Zea mays L.) di Lahan Kering Riska Sapira; I Wayan Sudika; I Wayan Sutresna
Jurnal Ilmiah Mahasiswa Agrokomplek Vol. 5 No. 3 (2026): Jurnal Ilmiah Mahasiswa Agrokomplek
Publisher : Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/qs9twa35

Abstract

Penelitian ini bertujuan untuk mengkaji keragaman genetik dan heritabilitas arti luas karakter kuantitatif galur S5 tanaman jagung dilahan kering. Penelitian dilaksanakan di lahan kering dengan sumber air sumur bor pada bulan Februari hingga Juni 2025 di Desa Gumantar, Kecamatan Kayangan, Kabupaten Lombok Utara. Percobaan disusun menggunakan Rancangan Acak Kelompok (RAK) nonfaktorial dengan 16 genotipe yang terdiri dari 16 galur S5 dengan masing-masing diulang dua kali sehingga diperoleh 32 unit percobaan. Karakter kuantitatif yang diamati meliputi tinggi tanaman, jumlah daun, diameter batang, luas daun, sudut daun, umur panen, panjang tongkol, diameter tongkol, bobot biji kering pipil per tanaman dan bobot 1000 biji. Data hasil percobaan dianalisis menggunakan analisis sidik ragam dengan taraf nyata 5%. Hasil penelitian menunjukkan bahwa keragaman genetik antar karakter beragam. Nilai koefisien keragaman genetik seluruh karakter yang diamati tergolong sempit, kecuali karakter bobot biji kering pipil per tanaman tergolong sedang dengan nilai koefisien keragaman genetik sebesar 13,93%. Seluruh karakter kuantitatif galur S5 yang diamati menunjukkan heritabilitas arti luas yang berbeda. Karakter sudut daun memiliki heritabilitas kriteria tinggi sebesar 67,68 %. Karakter tinggi tanaman, jumlah daun, bobot biji kering pipil per plot dan bobot 1.000 biji memiliki kriteria sedang (28,96% hingga 46,24%); sedangkan karakter diameter batang, luas daun, umur panen, panjang tongkol dan diameter tongkol memiliki heritabilitas rendah (2,68% hingga 14,73%). Karakter sudut daun, disarankan untuk digunakan sebagai kriteria dalam memilih tanaman untuk diselfing pada generasi berikutnya.
Periode Kritis Bawang Merah (Allium ascalonicum L.) dalam Kompetisi dengan Gulma terhadap Pertumbuhan dan Hasil Maulana; I Ketut Ngawit; I Wayan Sutresna
Jurnal Ilmiah Mahasiswa Agrokomplek Vol. 5 No. 3 (2026): Jurnal Ilmiah Mahasiswa Agrokomplek
Publisher : Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/vhbnd845

Abstract

Penelitian ini bertujuan menentukan periode kritis bawang merah (Allium ascalonicum L.) dalam kompetisi dengan gulma pada kondisi lahan sawah tadah hujan di Nusa Tenggara Barat serta menentukan waktu pengendalian gulma yang tepat. Percobaan menggunakan Rancangan Acak Kelompok dengan 20 perlakuan, yaitu periode tanaman bebas gulma dan bergulma selama 1–10 minggu setelah tanam (MST), dengan tiga blok. Parameter yang diamati meliputi pertumbuhan dan hasil bawang merah serta populasi dan biomassa gulma. Data dianalisis menggunakan analisis varian, uji BNJ 5%, analisis regresi-korelasi, dan William’s t-test. Hasil menunjukkan periode kritis bawang merah dalam kompetisi dengan gulma terjadi pada umur 4–5 MST. Keberadaan gulma sampai umur 5 MST masih dapat ditoleransi, tetapi penundaan pengendalian setelah periode tersebut menyebabkan pertumbuhan dan hasil tidak dapat dipulihkan. Bawang merah yang berkompetisi dengan gulma selama 5–10 MST mengalami penurunan hasil 64,759%–99,992%, sedangkan tanaman yang bebas gulma hanya sampai umur 1–3 MST mengalami penurunan hasil hingga 99,992%. Hasil ini memperkuat informasi mengenai periode kritis bawang merah pada kondisi lahan sawah tadah hujan di NTB. Pengendalian gulma perlu dilakukan sebelum atau memasuki periode kritis, dan tidak ditunda setelah tanaman berumur 5 MST.
Indeks Kompetisi Gulma Teki (Cyperus rotundus L.) dan Kehilangan Hasil Bawang Merah di Lahan Kering Ni Luh Shanti Adriani; I Ketut Ngawit; I Wayan Sutresna
Jurnal Ilmiah Mahasiswa Agrokomplek Vol. 5 No. 3 (2026): Jurnal Ilmiah Mahasiswa Agrokomplek
Publisher : Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/b2adnp69

Abstract

Penelitian eksperimental dengan model percobaan aditif bertujuan untuk mengetahui pengaruh kerapatan populasi teki terhadap pertumbuhan dan hasil bawang merah, indeks kompetisi dan kehilangan hasil bawang merah akibat kompetisi teki. Percobaan menggunakan rancangan acak lengkap yang terdiri atas 7 perlakuan tanaman bawang merah mengalami saingan gulma teki dengan kerapatan 0, 1, 2, 3, 4, 5 dan 6 rumpun. Hasil penelitian menunjukkan bahwa kerapatan populasi teki berpengaruh signifikan terhadap Relative Growth Rate tinggi tanaman⁻¹, jumlah daun, jumlah anakan, bobot biomassa kering dan bobot umbi konsumsi bawang merah. Bawang merah mengalami tekanan pertumbuhan dan hasil secara signifikan setelah mendapat saingan teki dengan kerapatan populasi 2-3 rumpun tanaman⁻¹, sehingga pertumbuhan dan hasil bawang merah tidak bisa diselamatkan setelah mendapat saingan teki 4 - 6 rumpun tanaman⁻¹. Indeks kompetisi teki terhadap bawang merah umur 28, 56 dan 84 HST sebesar 0,1779, 0,1945 dan 0,2055. Akibatnya, kehilangan hasil bawang merah mencapai 28,00%, 45,00% dan 58,00%. Hasilini relevan dengan prediksi kehilangan hasil bawang merah yang dihitung dengan parameter dominansi terbobot, yaitu 27,857%, 45,045% dan 58,126%. Populasi teki yang dapat ditolerir kehadirannya pada tanaman bawang merah 1 rumpun tanaman⁻¹. Keberadaan gulma teki pada tanaman bawang merah harus segera disiangi jika jumlah populasinya telah mencapai 2 rumpun tanaman⁻¹.
Co-Authors A. Farid Hemon Dwi Ratna Anugrahwati I Gusti Putu Muliartha Aryana I Ketut Ngawit I Wayan Sudika Kisman Kisman Maulana Ni Luh Shanti Adriani Riska Sapira