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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Zuriat Microbiology Indonesia Jurnal Agroekoteknologi JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Agrosains: Jurnal Penelitian Agronomi Jurnal Pertanian Agros JURNAL AGROHITA Logista: Jurnal Ilmiah Pengabdian Kepada Masyarakat Jurnal Hilirisasi IPTEKS (JHI) Agroteknika Agro Bali: Agricultural Journal Akta Agrosia Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Jagur: Jurnal Agroteknologi

Aprizal Zainal

Andalas University

Author-ID : 2431646

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Energy Engineering Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Veterinary Other

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Pengaruh Tingkat Intensitas Cahaya Matahari Melalui Naungan Terhadap Pertumbuhan Bibit Gambir (Uncaria gambir Roxb) Varietas Cubadak Daulay, Azri Gilang Ramadhan; Zainal, Aprizal; Satria, Benni; Arnelio, Rangga
JURNAL AGROTEKNOLOGI UNIVERSITAS ANDALAS Vol 7 No 2 (2025)
Publisher : Jurusan Budidaya Pertanian Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jagur.7.2.74-80.2025

Gambir (Uncaria gambir Roxb.) is an important Indonesian export commodity used in the pharmaceutical, food, and leather tanning industries. The Cubadak variety is one of the superior varieties with high flavonoid and tannin content and resistance to pests and diseases. One of the obstacles in gambir propagation is uneven seedling growth, which affects plant productivity and quality. One approach to address this issue is by regulating light intensity through shading during the gambir seedling phase. This study aims to investigate the effect of shading intensity on the growth of Cubadak gambir seedlings. The study was conducted at the Experimental Garden of the Faculty of Agriculture, Andalas University, using a Completely Randomized Design (CRD) with four levels of shading intensity (40%, 50%, 60%, and 70%) and three replications. Data were analyzed using an F-test at the 5% level, followed by Duncan’s New Multiple Range Test (DNMRT) at the 5% significance level. The results of the study indicated that 60% shading provided the best effect on gambir seedling growth, as evidenced by increased plant height, number of leaves, leaf area, and other morphological and physiological parameters. A shading intensity of 60% is recommended as the optimal condition for the growth of Cubadak gambir seedlings.

PENGARUH INTENSITAS CAHAYA TERHADAP PERTUMBUHAN DAN KANDUNGAN KALSIUM OKSALAT TANAMAN TALAS PUTIH (Xanthosoma sp) Zainal, Aprizal; Hasbullah, Farhan; Akhir, Nasrez; Hervani, Dini
Agros Journal of Agriculture Science Vol 24, No 2 (2022): edisi Juli
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v24i2.1934

Talas putih (Xanthosoma sp) berpotensi sebagai sumber pangan alternatif, namun dalam pemanfaatannya terdapat kendala berupa senyawa anti gizi berupa kalsium oksalat. Cahaya mempengaruhi pertumbuhan tanaman talas putih dan kandungan kalsium oksalat pada umbinya. Penelitian ini bertujuan untuk mengetahui pengaruh intensitas cahaya terhadap pertumbuhan dan kandungan kalsium oksalat, untuk mengetahui tingkat intensitas cahaya yang optimal terhadap pertumbuhan tanaman talas putih, dan untuk mengetahui intensitas cahaya yang optimal untuk menurunkan kadar kalsium oksalat pada tanaman talas putih. Penelitian ini telah dilaksanakan di kebun percobaan Fakultas Pertanian Universitas Andalas, Laboratorium Fisiologi Tumbuhan, dan di Laboratorium Non Ruminansia Fakultas Peternakan Universitas Andalas Padang. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 4 taraf, tanpa naungan (0%), naungan 25%, naungan 50%, dan naungan 75%, dengan 3 ulangan. Data dianalisis menggunakan uji F pada taraf 5% dan menggunakan Duncant Multiple Range Test (DMRT). Hasil penelitian menunjukkan bahwa intensitas cahaya berpengaruh terhadap pertumbuhan tanaman talas putih serta kandungan karbohidrat dan kalsium oksalat. Tingkat naungan 0% (tanpa naungan) menghasilkan kandungan karbohidrat tertinggi dan bobot umbi terberat. Penggunaan naungan 75% menghasilkan pertumbuhan pelepah tertinggi dan kandungan kalsium oksalat terendah.

Efektivitas Ekstrak Tumbuhan untuk Mengeliminasi Clavibacter michiganensis subsp. michiganensis pada Benih Tomat Zainal, Aprizal; Anwar, Aswaldi; Ilyas, Satriyas; Sudarsono, ,; Giyanto, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 38 No. 1 (2010): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Objectives of experiments were to evaluate (1) in vitro inhibitory effects of plant extracts on Clavibacter michiganensis subsp. michiganensis (Cmm), (2) inhibitory effects of plant extracts on Cmm infected tomato seeds, and (3) effectiveness of seed treatment plus plant extracts to eliminate Cmm. After evaluating 20 plant extracts, curcuma rhizome and betel vine leaf extract, cinnamon and clove oil were selected for further test. Tomato seeds were artificially inoculated with Cmm to obtain high level of infection. Part of the seeds were dipped in either suspension of selected extracts for 20 minutes and the others were matriconditioned using a mixture of burned rice hull (at 22 °C and RH 60-70%) plus either of plant extracts oils, respectively. Elimination of Cmm level from infected seeds was observed at 10 days after treatments. Results of the experiment indicated curcuma extract, betel vine extract, cinnamon oil or clove oil showed in vitro inhibitory effects on Cmm. Moreover, dipping infected seeds in either 5% of curcuma, betel vine extract, or 0.5% of clove oil or matriconditioning plus these extracts oils were effective to eliminate Cmm from infected seeds. These treatments may potentially be used and developed commercially for eliminating seedborne Cmm on infected tomato seeds. Keywords: Bacterial cancer, seedborne-pathogen, seed-treatments

Uji Inokulasi dan Respon Ketahanan 38 Genotipe To mat terhadap Clavibacter michiganensis subsp. michiganensis Zainal, Aprizal; Anwar, Aswaldi; Ilyas, Satriyas; Sudarsono, ,; Giyanto, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 39 No. 2 (2011): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Identifi kasi ketahanan genotipe adalah langkah awal dalam pengembangan kultivar tahan terhadap serangan patogen. Tujuan penelitian ini adalah (i) mendapatkan cara inokulasi dengan jumlah dan konsentrasi inokulum Cmm yang efektif untuk mengevaluasi ketahanan tomat terhadap Cmm di rumah kaca, (ii) mendeterminasi reaksi ketahanan berbagai genotipe tomat akibat inokulasi Cmm. Percobaan ini menggunakan 38 genotipe tomat yang terdiri dari 7 genotipe tomat lokal, 15 genotipe tomat komersial, dan 16 genotipe koleksi Pusat Studi Pemuliaan Tanaman IPB Bogor (PSPT/IPB). Agen penyebab penyakit yang digunakan adalah 6 isolat Cmm hasil percobaan sebelumnya. Cara inokulasi Cmm yang efektif terhadap tomat cv. Marta (sangat rentan), uji reaksi ketahanan berbagai genotipe tomat terhadap Cmm telah dilakukan di rumah kaca. Kesimpulan dari penelitian ini adalah (i) inokulasi dengan menyuntikkan inokulum Cmm 5 µl konsentrasi 106 cfu/ml pada beberapa tempat di ketiak daun (daun pertama, daun tengah dan pucuk) merupakan cara yang paling efektif mengevaluasi ketahanan tomat terhadap Cmm, (ii) berbagai genotipe tomat yang diuji belum ada yang tahan teradap Cmm, genotipe tomat lokal ada yang agak rentan dan agak tahan.Kata kunci: kultivar tahan, suspensi bakteri, tomat

OPTIMIZATION OF BREAKING DORMANCY OF SUGAR PALM SEEDS (Arenga Pinnata Merr.) THROUGH PHYSICAL SCARIFICATION WITH POSITION VARIATIONS Sari, Afrima; Anwar, Aswaldi; Ramadhan, Nugraha; Hayati, P.K. Dewi; Zainal, Aprizal; Prawinata, Pagil; Rahman, Atzim Baitur
Agros Journal of Agriculture Science Vol 26, No 1 (2024): Januari
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v26i1.3815

The germination process is the key to plant phenology, which significantly influences the success of early plant growth. Some seeds have a dormancy, so the germination process is hampered or does not occur. However, dormancy-breaking treatments in plants have been widely reported, such as breaking the dormancy of sugar palm seeds through physical scarification. This research aims to determine the best scarification position to break the dormancy of sugar palm seeds. This research was carried out at the Seed Technology Laboratory, Faculty of Agriculture, Universitas Andalas from July to October 2023. The design was completely randomized with scarification in two position variations, the operculum (A1) and dorsal (A2) points, repeated thrice. The results showed that the position of seed scarification affected the emergence time of cotyledon petioles and coleoptiles, germination capacity, and seed moisture content. Scarification at the operculum point requires a dormancy break of 16 DAP (Days After Planting) compared to 29 DAP for the dorsal. Seed viability was good in seeds sacrificed at the operculum point, with a germination percentage of 81.94%. Keywords: dorsal, operculum, cotyledon petiole

Co-Authors . Giyanto Akhir, Nasrez Amalina Wahyuni Anwar, Aswaldi Aprissilia Taifani Galuh Utomo Arnelio, Rangga Auzar Syarif Bahagiawati Amirhusin Benni Satria Daulay, Azri Gilang Ramadhan ekawati, fitri Etti Swasti Giyanto . Gustian Gustian Haliatur Rahma, Haliatur Hasbullah, Farhan Hasmiandy Hamid Hayati, PK Dewi Hervani, Dini Indra Dwipa Irfan Suliansyah Mawati, Idel Meity S Sinaga, Meity S Memen Suharman, Memen Mufti Gustrianda Musliar Kasim Nasution, Rizki Nia Sukri Netti Herawati Nissa, Ayu Khairun Panca Jarot Santoso Prawinata, Pagil Putri Salsa Afifah Putri, Yenni Anisah Rahman, Atzim Baitur Ramadhan, Nugraha Rini Suryani Rini Suryani, Rini Roza Yunita Ryan Budi Setiawan Sari Rahmadhini Sari, Afrima Satriyas Ilyas SATRIYAS ILYAS Silvia Permata S Sudarsono Sukartini Sukartini Sukartini Suryati . Sutoyo Sutoyo Sutoyo Sutoyo Teguh Budi Prasetyo Trisia Wulantika UJANG KHAIRUL Warnita Winda Purnama Sari Yusniwati Yusniwati

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