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All Journal Jurnal Natur Indonesia Jurnal Penelitian Pertanian Terapan Agrin : Jurnal Penelitian Pertanian Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Agrotropika Jurnal Instruktional Jurnal Pengabdian Fakultas Pertanian Universitas Lampung
Kukuh Setiawan
Universitas Lampung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering

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Journal : Jurnal Agrotropika

 1 
Pengaruh Irigasi terhadap Pertumbuhan dan Produksi Kelapa Sawit Evizal, Rusdi; Sari, Rina Yunika; Saputra, Hidayat; Setiawan, Kukuh; Prasmatiwi, Fembriarti Erry
JURNAL AGROTROPIKA Vol 20, No 1 (2021): Jurnal Agrotropika Vol 20 No 1, Mei 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v20i1.4848

Abstract

Growth and yield of oil palm is largely determined by climatic conditions especially in the dry season.  The purpose of this study was to determine the effect of planting date and irrigation in the dry season of 2015 on the growth and production of palm oil in 2016.  The data collecting was conducted from June to October 2016 at a plantation company, Southern Lampung.  Treatments were arranged by factorial (3x2) in randomized block design with 7 replications.  The first factor was age categories consisted of mature trees planted 2001 (TD 2001), young trees planted 2009 (TM 2009), and young trees planted 2010 (TM 2010).  The second factor was irrigation (no irrigation and with irrigation). The irrigation used was bulk irrigation with rotation of once in a weeks during dry season (September-October).  Observed variables were number of broken frond, spear frond, dried frond, female inflorencence, and bunches yield.  Data was analyzed by analysis of the variance (ANOVA), and the differences of the mean were analyzed by Tuckey at 5% level of significant difference.  Irrigation decreased number of broken frond and dry frond. Irrigation increased fresh fruit bunch yield of certain months in current and next year. Age categories (young and mature) had no signicantly effect on number of bunch and fresh fruit bunch per tree. However there was interaction between age categories and irrigation on the average of bunch weight. Keywords : growth, oil palm, rainfall, water deficit, yield
Laju Pengisian Biji Tanaman Jagung (Zea mays L.) pada Sistem Tanam yang Berbeda Samsun, Achmad; Setiawan, Kukuh; Manik, Tumiar Katarina; Timotiwu, Paul Benjamin
JURNAL AGROTROPIKA Vol 23, No 1 (2024): Jurnal Agrotropika Vol 23 No 1, Mei 2024
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v23i1.8784

Abstract

Jagung (Zea mays L.) merupakan bahan pangan alternatif setelah padi. Untuk memenuhi permintaan akan bahan pangan jagung perlu dilakukan inovasi agar kebutuhan tersebut tercukupi, salah satunya dengan melakukan pengujian mengenai sistem tanam yang berbeda pada budidaya jagung. Sistem tanam yang berbeda diduga akan menghasilkan jumlah populasi tanaman akan berbeda, sehingga jumlah bobot panen jagung akan berbeda pula. Jagung membutuhkan banyak cahaya dan sumber daya lingkungan lainnya untuk tumbuh. Apabila pertumbuhan tanaman baik, maka proses laju pengisian biji yang diduga berpengaruh pada hasil produksi tanaman akan berlangsung optimal. Oleh karena itu, dilakukan penelitian ini yang bertujuan untuk mengetahui pengaruh sistem tanam yang berbeda terhadap proses laju pengisian biji pada tanaman jagung dan mengetahui sistem tanam yang paling optimal untuk pertumbuhan vegetatif, laju pengisian biji, dan produksi tanaman jagung. Penelitian dilakukan pada tanaman jagung varietas NK Sumo yang ditanam dengan 3 sistem berbeda yaitu legowo, konvensional, dan zig-zag. Variabel penelitian terdiri dari 3 bagian pengamatan yaitu laju pengisian biji, pertumbuhan vegetatif, dan variabel lingkungan. Hasil pengamatan laju pengisian biji menunjukkan hasil yang fluktuatif pada setiap waktu pengamatan. Meskipun sebagian besar hasil penelitian menunjukkan bahwa sistem tanam tidak mempengaruhi hasil pengamatan, namun terlihat bahwa sistem tanam zig-zag menghasilkan hasil paling tinggi diantara sistem tanam lainnya. Sistem tanam terbaik adalah pada perlakuan sistem tanam zigzag dengan bobot biji basah dan bobot biji kering seberat 216,58gram dan 56,25 gramsistem tanam ini diharapkan dapat meningkatkan produksi tanaman jagung per hektar.
PERTUMBUHAN DAN PRODUKSI TIGA KLON UBI KAYU GENJAH PADA TANAH ULTISOL YANG DIBERI CACAHAN BATANG SINGKONG DI LAHAN RISET PT GGP LAMPUNG TENGAH Utomo, Setyo Dwi; Setiawan, Kukuh; Yelli, Fitri; Ardian, Ardian; Novpriansyah, Hery; Yanto, Indri; Syaifudin, Akmad; Saifulloh, Al Azizu; Noerwijati, Kartika
JURNAL AGROTROPIKA Vol 24, No 1 (2025): Jurnal Agrotropika Vol 24 No 1, Mei 2025
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v24i1.8768

Abstract

Cassava is a plant that is ranked third as a source of food in Indonesia. Apart from that, cassava is also needed in industries such as making tapioca flour. In 2021, cassava production in Lampung will be around 20-25 t/ha, this amount is still below the potential of superior cassava which reaches 35-40 t/ha. Cassava growth and production depend on the variety and land where it is cultivated. This research aims to determine the differences in growth and production of several early maturing cassava clones tested, namely Vamas-1, Vati-1, and UTK on Ultisol soil in the PT GGP research area. This research was carried out on the land of the PT GGP research division, Central Lampung, Lampung. This research was carried out from August 2022 to February 2023. The research method used was a Randomized Block Design (RAK) with one treatment, namely clones. There are 3 clones used, namely Vamas-1, Vati-1, and UTK. The experiment on each clone consisted of 3 replications with 36 plants in each replication, but 5 plants were selected from each replication as samples, so that 45 experimental units were obtained. The observation data was analyzed and then compared with the UJ5 clone data based on the Standard Deviation to determine the early maturation characteristics of the three clones. The results showed that clone treatment had no significant effect on growth and production. The number of fresh sweet potatoes at 24 weeks after planting (WAP) in terms of the quantity of clones Vamas-1, Vati-1, UTK, and UJ5 respectively was 7.3; 6.6; 6.3; and 7.3 fruit/plant with a fresh sweet potato weight of 2316,7; 2183,3; 2150,0; and 1433,3 g/plant. The starch content of Vamas-1, Vati-1, UTK, and UJ5 clones was 26,2%; 25,2%; 25,8%; and 23.2%..Keywords : early, Manihot esculenta, UTK, Vamas-1, Vati-1,
PERTUMBUHAN DAN PRODUKSI TIGA KLON UBI KAYU GENJAH PADA TANAH ULTISOL YANG DIBERI CACAHAN BATANG SINGKONG DI LAHAN RISET PT GGP LAMPUNG TENGAH Utomo, Setyo Dwi; Setiawan, Kukuh; Yelli, Fitri; Ardian, Ardian; Novpriansyah, Hery; Yanto, Indri; Syaifudin, Akmad; Saifulloh, Al Azizu; Noerwijati, Kartika
JURNAL AGROTROPIKA Vol. 24 No. 1 (2025): Jurnal Agrotropika Vol 24 No 1, Mei 2025
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v24i1.8768

Abstract

Cassava is a plant that is ranked third as a source of food in Indonesia. Apart from that, cassava is also needed in industries such as making tapioca flour. In 2021, cassava production in Lampung will be around 20-25 t/ha, this amount is still below the potential of superior cassava which reaches 35-40 t/ha. Cassava growth and production depend on the variety and land where it is cultivated. This research aims to determine the differences in growth and production of several early maturing cassava clones tested, namely Vamas-1, Vati-1, and UTK on Ultisol soil in the PT GGP research area. This research was carried out on the land of the PT GGP research division, Central Lampung, Lampung. This research was carried out from August 2022 to February 2023. The research method used was a Randomized Block Design (RAK) with one treatment, namely clones. There are 3 clones used, namely Vamas-1, Vati-1, and UTK. The experiment on each clone consisted of 3 replications with 36 plants in each replication, but 5 plants were selected from each replication as samples, so that 45 experimental units were obtained. The observation data was analyzed and then compared with the UJ5 clone data based on the Standard Deviation to determine the early maturation characteristics of the three clones. The results showed that clone treatment had no significant effect on growth and production. The number of fresh sweet potatoes at 24 weeks after planting (WAP) in terms of the quantity of clones Vamas-1, Vati-1, UTK, and UJ5 respectively was 7.3; 6.6; 6.3; and 7.3 fruit/plant with a fresh sweet potato weight of 2316,7; 2183,3; 2150,0; and 1433,3 g/plant. The starch content of Vamas-1, Vati-1, UTK, and UJ5 clones was 26,2%; 25,2%; 25,8%; and 23.2%..Keywords : early, Manihot esculenta, UTK, Vamas-1, Vati-1,
Laju Pengisian Biji Tanaman Jagung (Zea mays L.) pada Sistem Tanam yang Berbeda Samsun, Achmad; Setiawan, Kukuh; Manik, Tumiar Katarina; Timotiwu, Paul Benjamin
JURNAL AGROTROPIKA Vol. 23 No. 1 (2024): Jurnal Agrotropika Vol 23 No 1, Mei 2024
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v23i1.8784

Abstract

Jagung (Zea mays L.) merupakan bahan pangan alternatif setelah padi. Untuk memenuhi permintaan akan bahan pangan jagung perlu dilakukan inovasi agar kebutuhan tersebut tercukupi, salah satunya dengan melakukan pengujian mengenai sistem tanam yang berbeda pada budidaya jagung. Sistem tanam yang berbeda diduga akan menghasilkan jumlah populasi tanaman akan berbeda, sehingga jumlah bobot panen jagung akan berbeda pula. Jagung membutuhkan banyak cahaya dan sumber daya lingkungan lainnya untuk tumbuh. Apabila pertumbuhan tanaman baik, maka proses laju pengisian biji yang diduga berpengaruh pada hasil produksi tanaman akan berlangsung optimal. Oleh karena itu, dilakukan penelitian ini yang bertujuan untuk mengetahui pengaruh sistem tanam yang berbeda terhadap proses laju pengisian biji pada tanaman jagung dan mengetahui sistem tanam yang paling optimal untuk pertumbuhan vegetatif, laju pengisian biji, dan produksi tanaman jagung. Penelitian dilakukan pada tanaman jagung varietas NK Sumo yang ditanam dengan 3 sistem berbeda yaitu legowo, konvensional, dan zig-zag. Variabel penelitian terdiri dari 3 bagian pengamatan yaitu laju pengisian biji, pertumbuhan vegetatif, dan variabel lingkungan. Hasil pengamatan laju pengisian biji menunjukkan hasil yang fluktuatif pada setiap waktu pengamatan. Meskipun sebagian besar hasil penelitian menunjukkan bahwa sistem tanam tidak mempengaruhi hasil pengamatan, namun terlihat bahwa sistem tanam zig-zag menghasilkan hasil paling tinggi diantara sistem tanam lainnya. Sistem tanam terbaik adalah pada perlakuan sistem tanam zigzag dengan bobot biji basah dan bobot biji kering seberat 216,58gram dan 56,25 gramsistem tanam ini diharapkan dapat meningkatkan produksi tanaman jagung per hektar.
SELEKSI DURA ANGOLA DIDASARKAN ANALISIS VARIASI FENOTIPE Lesmana, Bayu; Setiawan, Kukuh; Hapsoro, Dwi; Asmono, Dwi; Karyanto, Agus
JURNAL AGROTROPIKA Vol. 24 No. 2 (2025): Jurnal Agrotropika Vol 24 No 2, Oktober 2025
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v24i2.11259

Abstract

Indonesia remains the world’s leading producer of palm oil, contributing substantially to the national economy. Sustaining productivity growth requires the development of superior varieties characterized by high oil yield, reduced trunk height increment, and enhanced oil quality. Dura Angola, a germplasm originating from Africa and introduced by PT Binasawit Makmur in 2010, offers the potential to broaden the narrow genetic base of Dura while providing valuable agronomic traits. This study aimed to identify promising genotypes and select superior Dura Angola populations based on phenotypic variation and genetic parameters. The research was conducted at Mesuji Estate, PT Aek Tarum, South Sumatra, on 1,029 Dura Angola palms planted in 2012. Traits evaluated included yield components (bunch number, fresh fruit bunch weight, average bunch weight), vegetative growth (annual trunk height increment, rachis length, leaf area, frond production), and oil yield components (fruit-to-bunch ratio, mesocarp-to-fruit ratio, oil-to-wet mesocarp ratio, oil-to-bunch ratio, and oil extraction rate). Data were analyzed using an Unbalanced Incomplete Block Design within a General Linear Model framework, followed by estimation of heritability, genetic and phenotypic coefficients of variation, and trait correlations. Significant phenotypic variation was observed for most traits, with high heritability detected in bunch number, fresh fruit bunch weight, rachis length, leaf area, fruit-to-bunch ratio, and oil-to-bunch ratio. Based on the integration of genetic estimates and phenotypic performance, ten elite individuals were identified from accessions A074/20, A040/22, A040/12, A095/05, A041/26, A041/22, and A075/08. These individuals are recommended as potential female parents for introgression with elite Dura lines or to produce commercial D×P hybrids. The utilization of these selected Dura Angola individuals is expected to broaden the genetic base of Dura, improve breeding efficiency, and support the development of superior oil palm varieties for sustainable intensification.
Co-Authors , Agustiansyah Adisyahputra Adisyahputra, Adisyahputra Agus Karyanto Ahmad Syaifudin Ardian Ardian Aritonang, Prasasti Dame Bayu Lesmana, Bayu Dewi, Erni Permata Dwi Asmono DWI HAPSORO Eko Pramono Erwin Yuliadi Fembriarti Erry Prasmatiwi Fitri Yelli Hadi , Muhammad Syamsoel Hadi, Muhammad Syamsoel Hendra Prasetia Hidayat Saputra, Hidayat Melya Riniarti Muhammad Kamal Muhammad Syamsul Hadi, Muhammad Syamsul Noerwijati, Kartika Nomi, Ahmad Suryadi Novpriansyah, Hery Prayoga, Seldi Rusdi Evizal Saifulloh, Al Azizu Samsul Bakri Samsun, Achmad Sanjaya, Purba Sari, Rina Yunika Setiawan, Wawan A Setyo Dwi Utomo Sudarsono Sungkono Sungkono Surtono, Arif Syaifudin, Akmad Timotiwu, Paul Benjamin Tumiar Katarina Manik Wahyu Hidayat WAWAN ABDULLAH SETIAWAN, WAWAN ABDULLAH WINATA, WIDIA Wirastiti, Ni Ketut Yanto, Indri Yeli, Fitri