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Kemiripan dan Evaluasi Produksi Aksesi Kenikir (Cosmos caudatus Kunth.) dari Jawa Barat Venti Jatsiyah; Anas Dinurrohman Susila; dan Muhamad Syukur
Indonesian Journal of Agronomy Vol. 44 No. 1 (2016): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

ABSTRACTKenikir (Cosmos caudatus Kunth.) is an Indonesian indigenous vegetable which is potential to be developed. Exploration conducted in Bogor, Sukabumi, Bandung, Bandung Barat, Subang, Garut, Majalengka, Kuningan, and Tasikmalaya had succesfully collected 20 accessions of Cosmos sp. The objectives of this study were to observe similarity and estimate the yield of Cosmos accessions from West Java. Clusters analysis grouped 20 Cosmos accessions into three clusters. Cluster I consisted of Pendeuy, Saribakti, Karang agung, Sindangbarang, Langensari, Perbawati, Sudajaya girang, Karang tengah, Argalingga, Warnasari, Sukaresmi, Ciwidey, Jalan cagak, Lebaksiuh, Tugu selatan, Ciwarak, Linggarjati and Babakan accessions. Cluster II and III consisted only one accession each which were Ciaruteun and Dramaga, respectively. Seven accessions from different sub cluster were evaluated to estimate the yield. A significant variability was found among the accessions. Results showed that those accessions were significantly different on plant height, stem girth, numbers of primary branches, number of leaf, leaves width, leaves length, days to flowering and yield. The results showed that Dramaga and Ciaruteun acessions were recomended to be developed because of its high yield. Keywords: characterization, cluster analysis, exploration

Respon Pertumbuhan Bibit Kopi Robusta Terhadap Pemberian Pupuk Organik Cair Limbah Industri Tahu Venti Jatsiyah; Rosmalinda Rosmalinda; Sopiana Sopiana; Nurhayati Nurhayati
AGROVITAL : Jurnal Ilmu Pertanian Vol 5, No 2 (2020): AGROVITAL : Volume 5, Nomor 2 November 2020
Publisher : Universitas Al Asyariah Mandar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35329/agrovital.v5i2.1742

Penelitian berjudul Respon Pertumbuhan Bibit Kopi Robusta (Coffea robusta L) Terhadap Pemberian Pupuk Organik Cair Limbah Industri dilaksanakan di Kebun Percobaan, Politeknik Negeri Ketapang, Kabupaten Ketapang, Kalimantan Barat pada Juli sampai September 2020. Penelitian ini bertujuan untuk mengetahui manfaat pemberian konsentrasi yang berbeda dari POC limbah industri tahu terhadap pertumbuhan bibit kopi robusta. Menggunakan jenis penelitian Rancangan Acak Lengkap (RAL) yang terdiri dari 5 perlakuan dan 4 ulangan, yaitu : K0 = 0%, K1 = 25%, K2 = 50%, K3 = 75%, dan K4 = 100%. Data yang diperoleh dianalisis menggunakan ANOVA, jika berpengaruh nyata maka dilanjutkan dengan uji DMRT pada taraf α = 0,05. Hasil penelitian menunjukkan bahwa pemberian POC limbah industri tahu berpengaruh nyata pada parameter tinggi bibit, jumlah daun, panjang akar, berat basah dan berat kering, namun tidak berbeda nyata pada pertambahan diameter batang. Konsentrasi terbaik untuk pertumbuhan bibit kopi robusta adalah 75%.

Efikasi Herbisida Isopropilamina Glifosat terhadap Pengendalian Gulma Kelapa Sawit Belum Menghasilkan Sarwendah Ratnawati Hermanto; Venti Jatsiyah
Agrovigor Vol 13, No 1 (2020): Maret
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrovigor.v13i1.6070

Salah satu faktor yang menghambat produktivitas kelapa sawit yaitu gulma, karena pengaruh gulma tidak terlihat secara langsung dan umumnya berjalan lambat. Metode pengendalian secara kimiawi dengan menggunakan herbisida dianggap sebagai metode paling mudah. Penelitian ini bertujuan untuk mengetahui dosis herbisida yang efektiv serta mengetahui tingkat kematian gulma setelah aplikasi herbisida isopropilamina glifosat pada perkebunan kelapa sawit belum menghasilkan (TBM). Penelitian ini dilaksanakan pada area perkebunan kelapa sawit belum menghasilkan (TBM) di perkebunan desa Pelang, Kabupaten Ketapang, Provinsi Kalimantan Barat. Penelitian ini menggunakan rancangan acak kelompok (RAK) dengan 6 perlakuan serta 4 ulangan. Hasil penelitian menunjukan bahwa herbisida isopropilamina glifosat mampu menekan pertumbuhan gulma. Berdasarkan hasil uji duncan multiple range test (DMRT) perlakuan terbaik dalam pengendalian gulma di tanaman kelapa sawit belum menghasilkan yaitu pada dosis 2,00 l/ha, mampu menekan pertumbuhan gulma secara efektif dengan konsentrasi 1,7 % dalam menurunkan bobot kering gulma total pada 2 dan 6 MSA di tanaman kelapa sawit belum menghasilkan (TBM).

KOMBINASI HERBISIDA GLIFOSAT DAN AIR KELAPA FERMENTASI DALAM MENGENDALIKAN GULMA DI PERKEBUNAN KELAPA SAWIT MENGHASILKAN Venti Jatsiyah; Nurhayati Nurhayati; Yulinarti Yulinarti
Journal of Agro Plantation (JAP) Vol 1 No 2 (2022)
Publisher : Politeknik Negeri Ketapang

Young coconut water can be used as a basic ingredient in making herbicide formulas. The purpose of this study was to determine whether the concentration of the herbicide glyphosate and fermented air in controlling weeds in oil palm plantations yielded and to determine the most effective concentration in controlling weeds in oil palm plantations. This study used a Randomized Block Design (RAK) which was arranged in a factorial manner. The first factor is the concentration of the herbicide combination (H) consisting of: H1 = concentration of 2 ml glyphosate + 200 ml fermented coconut water, H2 = concentration of 4 ml glyphosate + 100 ml fermented coconut water. The second factor is the dose given (D), namely: D1 = 0.2 l/8 m2, D2 = 0.4 l/8 m2 and D3 = 0.6 l/8 m2. Each treatment was repeated 3 times. The data obtained were analyzed statistically by Analysis of Variances (ANOVA). If it has a significant effect, it will be continued with Duncan's Multiple Range Test (DMRT) at the 5% level. The results showed that the use of a combination of the herbicide glyphosate and fermented air was effective, the most effective concentration in controlling weeds in oil palm plantations resulted in a concentration of 2 ml glyphosate + 200 ml fermented young coconut water.

PEMANFAATAN BERBAGAI DOSIS SERBUK GERGAJI UNTUK MENINGKATKAN UMUR SIMPAN BENIH KAKAO (Theobroma cacao L.) Umroh Umroh; Rosmalinda Rosmalinda; Venti Jatsiyah; Nurhayati Nurhayati; Sarwendah Ratnawati Hermanto
Journal of Agro Plantation (JAP) Vol 1 No 1 (2022)
Publisher : Politeknik Negeri Ketapang

Cocoa seeds are seeds that have easy germination properties or are called recalcitrants. The technique of storing recalcitrant seeds cannot be dried below a critical moisture content, germinates easily and is not tolerant of low temperatures, so it is necessary to modify storage using sawdust storage media so that the seeds remain of good quality. The purpose of this study was to determine the effect of various doses of sawdust on the shelf life of cocoa seeds. Besides that, it also knows the best treatment of various doses of sawdust that can increase the shelf life of cocoa seeds. This study used a completely randomized design (CRD) with 6 treatments and 6 replications so that there were 36 experimental units. Parameters observed consisted of seed moisture content during storage, moldy seeds in storage and percentage of germination in seeding. Observational data were analyzed using ANOVA. If the results have a significant effect, then continue with the Duncan Multiple Range Test (DMRT) test at a level of 5%. The results showed that the best sawdust storage medium was 180 grams (A5) which could reduce the percentage of moldy seeds in storage.

PENGARUH PEMBERIAN KOMPOS SERASAH TERHADAP PERTUMBUHAN BIBIT STUM MATA TIDUR KARET PADA MEDIA GAMBUT albertus ronald; Sopiana Sopiana; Venti Jatsiyah
Journal of Agro Plantation (JAP) Vol 2 No 1 (2023)
Publisher : Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/jap.v2i1.743

The problem faced in rubber nurseries on a large scale is the limitation of fertile soil. An effort to overcome this problem is to utilize peat soil with rubber leaf litter compost treatment. The purpose of this study was to determine the effect of giving a dose of rubber leaf litter compost on the growth of sleeping eye stum rubber seeds and to determine the best dose of rubber leaf litter compost on the growth of sleeping eye stum rubber seedlings. The research was carried out in the experimental garden of Gg. Hj. Salbiah Delta Pawan District, Ketapang Regency, West Kalimantan from April to July 2021. The study used a single factor Completely Randomized Design (CRD) with 4 treatments and 5 replications. The treatments used were K0 = 1000 g peat soil, K1 = 300 g rubber leaf litter compost + 700 g peat soil, K2 = 400 g rubber leaf litter compost + 600 g peat soil and K3 = 500 g rubber leaf litter compost + 500 g peat. The data obtained were analyzed statistically with Analysis of Variances (ANOVA) using the SAS application version 9.0. If it is significantly different, then it is continued with the Duncan Multiple Range Test (DMRT) further test at the 5% level. The results showed that the addition of rubber leaf litter had a significant effect on shoot height, stem diameter, number of umbrellas and root length. The dose of rubber leaf litter compost 500 g rubber litter compost + 500 g peat soil is the best treatment to increase the growth of sleeping eye stumps.

PEMANFAATAN BERBAGAI DOSIS SERBUK GERGAJI UNTUK MENINGKATKAN UMUR SIMPAN BENIH KAKAO (Theobroma cacao L.) Umroh Umroh; Rosmalinda Rosmalinda; Venti Jatsiyah; Nurhayati Nurhayati; Sarwendah Ratnawati Hermanto
Journal of Agro Plantation Vol 1 No 1 (2022)
Publisher : Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/jap.v1i1.1176

Cocoa seeds are seeds that have easy germination properties or are called recalcitrants. The technique of storing recalcitrant seeds cannot be dried below a critical moisture content, germinates easily and is not tolerant of low temperatures, so it is necessary to modify storage using sawdust storage media so that the seeds remain of good quality. The purpose of this study was to determine the effect of various doses of sawdust on the shelf life of cocoa seeds. Besides that, it also knows the best treatment of various doses of sawdust that can increase the shelf life of cocoa seeds. This study used a completely randomized design (CRD) with 6 treatments and 6 replications so that there were 36 experimental units. Parameters observed consisted of seed moisture content during storage, moldy seeds in storage and percentage of germination in seeding. Observational data were analyzed using ANOVA. If the results have a significant effect, then continue with the Duncan Multiple Range Test (DMRT) test at a level of 5%. The results showed that the best sawdust storage medium was 180 grams (A5) which could reduce the percentage of moldy seeds in storage.

Penghambatan Pertumbuhan Gulma Sembung Rambat (Mikania micrantha) Oleh Bioherbisida Ekstrak Daun Ketapang (Terminalia catappa) Venti Jatsiyah; Sarwendah Ratnawati Hermanto; Santi Purnama Sari
AGROVITAL : Jurnal Ilmu Pertanian Vol 8, No 2 (2023): AGROVITAL VOLUME 8, NOMOR 2, NOVEMBER 2023
Publisher : Universitas Al Asyariah Mandar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35329/agrovital.v8i2.4877

Sembung rambat umumnya tumbuh dominan pada areal kelapa sawit belum menghasilkan hingga dapat membelit atau menutupi tanaman budidaya. Penggunaan bioherbisida merupakan alternatif untuk pengendalian gulma yang tumbuh di tanaman budidaya, salah satu cara memacu pertumbuhan gulma yaitu dengan herbisida daun ketapang. Penelitian ini bertujuan untuk mengetahui apakah ekstrak daun ketapang mampu menghambat pertumbuhan sembung rambat.Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) nonfaktorial yang terdiri dari 5 taraf perlakuan konsentrasi (0%;10%; 25%; 50%; 75%) dengan 5 kali ulangan sehingga diperoleh 25 satuan percobaan. Terhadap pertumbuhan gulma sembung rambat dengan parameter pengamatan tinggi tanaman, jumlah daun dan hari kematian. Hasil analisa dan pengamatan setelah aplikasi bioherbisida ekstrak daun ketapang menunjukkan bahwa ada pengaruh terhadap tinggi tanaman, jumlah daun dan hari kematian. Berdasarkan hasil analisa dan pengamatan konsentrasi 25%, 50% dan 75% berpengaruh nyata terhadap penghambatan pertumbuhan gulma sembung rambat dibandingkan tanpa pengaplikasian bioherbisida ekstrak daun ketapang. Konsentrasi efektif bioherbisida ekstrak daun ketapang adalah konsentrasi 50%. Keywords : Sembung Rambat; Ketapang; Bioherbisida.

The Effect of Organic Fertilizer Type, Nutrient Composition, and Application Method on Tomato Plant Growth in Plantation Areas in the Cianjur Region of West Java Venti Jatsiyah; Safruddin Safruddin
West Science Agro Vol. 2 No. 02 (2024): West Science Agro
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsa.v2i02.945

This study investigated the effect of organic fertilizer type, nutrient composition, and application method on tomato plant growth in the plantation areas of the Cianjur region, West Java. A randomized complete block design (RCBD) with factorial arrangements was employed, and data were collected using Likert scale ratings from 110 tomato plants. The analysis revealed significant differences in plant growth among different organic fertilizer types, with biofertilizers exhibiting the highest mean growth score. Moreover, fertilizers with balanced nutrient compositions resulted in superior plant growth compared to those with imbalanced compositions. Additionally, foliar spraying emerged as the most effective application method, promoting higher plant growth compared to broadcasting and banding methods. These findings highlight the importance of considering organic fertilizer characteristics and application techniques in optimizing tomato plant growth in agricultural systems.

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