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Indra Dwipa
Departemen Agroteknologi Fakultas Pertanian Universitas Andalas
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Journal : JURNAL AGROTEKNOLOGI

 1 
PENGARUH INTRODUKSI ISOLAT RIZOBAKTERIA INDIGENUS TERHADAP PERTUMBUHAN DAN HASIL TANAMAN KENTANG (Solanum tuberosum L.) DAN DINAMIKA POPULASI GULMA DI ALAHAN PANJANG, SUMATERA BARAT FRISKIA HANATUL QOLBY; IRAWATI CHANIAGO; INDRA DWIPA; ZURAI RESTI
Jurnal Agroteknologi Vol 11, No 1 (2020): Agustus 2020
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v11i1.9411

Abstract

Potato (Solanum tuberosum L.) is of important major crops for its carbohydrate and plays important roles to support food sovereignty along with rice, wheat, corn, and sorghum. Potato growth and yield at West Sumatra has not reached its maximum potential due to some factors including cultivation. One major important constraint in potato growing in West Sumatra is the fact that farmers use the 8th to 12th generation of potato seedlings which have a very low agronomic potential. Yet, weeds have caused another problem in the field and reduce potato yield. An experiment has been conducted at the Laboratory of Microbiology, Faculty of Agriculture, Universitas Andalas and Nagari Alahan Panjang, Subdistrict Lembah Gumanti, Solok Regency from November 2018 to March 2019. The experiment was aimed at determining the best indigenous rhizobactria isolates to increase the growth and yield of potato plants as well as weed population dynamics associated with potato plants. Six isolates of indigenous rhizobacteria and a control treatment group were tested in a completely randomised design with three replicates. The isolates were L1 S3.1, L1 S3.2, L1 S4.4, L2 S1.2, L2 S2.3, L2 S3. 2. Data were analyzed with analysis of variance and mean separation with Duncan's New Multiple Range Test (DNMRT) at 5%. Results showed that isolate L1 S4.4 was best in increasing the number of branches, number of tubers, and weight of potato yield. The isolates tested affected weed populations dynamics, prior to treatments there were 8 species of weeds found at the field i.e Bidens pilosa L., Leptochloa chinensis, Eleusine indica L., Agerathum conyzoides, Richardia sp, Galinsoga parviflora, and Sonchus arvensis. During potato growing at the field, weed species of Eleusine indica L. and Gynura divaricata dissappeared from the soil. In contrast,  Amaranthus spinosus emerged demonstrating that weed population dynamic has occurred.
EKSPLORASI KERAGAMAN PLASMA NUTFAH PADI LOKAL KUANTAN SINGINGI BERDASARKAN MORFOLOGI GABAH DAN BERAS Ezward, Chairil; Suliansyah, Irfan; Rozen, Nalwida; Dwipa, Indra
Jurnal Agroteknologi Vol 15, No 1 (2024): Agustus 2024
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v15i1.23429

Abstract

Farmers in specific region can play a crucial role in preventing the extinction of rare rice varieties by maintaining their commitment to local rice production. This not only contributes to the economic stability of the community but also necessitates exploration efforts to identify and gather specific plant species at risk of extinction. This study employs a descriptive research design to identify, gather, and compare the relationships between local rice genotypes in the Kuantan Singingi regency. The survey method utilizes a planned sample of rice seeds.The exploration process involves observing geographic coordinate locations, collecting local rice seeds, and examining grain and rice morphology based on Bioversity International, IRRI, and WARDA standards from 2007. The Kuantan River, with an altitude ranging from 28.95 to 61.56 meters above sea level, is prone to frequent flooding. A morphological study of grains reveals that, out of 26 local rice genotypes, one pair exhibits the highest similarity rate of 71% when compared to more diverse types. Notably, the white sironda rice from Pulau Madina village in Kuantan Hilir district and pandan wangi rice from Pauh Angit village in Pangean district are identified as the most identical genotypes. By identifying and preserving unique and highly-potential indigenous rice genotypes, this research significantly contributes to the enhancement of food stability, rural economy, and genetic resilience of rice plasma in Indonesia.
HUBUNGAN POSISI APOKOL DALAM PERKECAMBAHAN AREN (Arenga pinnata Merr.) DENGAN PERTUMBUHAN KECAMBAH DAN KERAGAMAN GENETIK Anwar, Aswaldi; Dwipa, Indra; Hervani, Dini; Sari, Afrima
Jurnal Agroteknologi Vol 14, No 2 (2024): Februari 2024
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v14i2.21882

Abstract

Sugar palm seed germination does indicate by the appearance of a tissue that extends like a sponge called apokol which is penetrating the hard seed coat and can occur in several positions in germinated sugar palm seeds. No research reports discuss the relationship between this apokol position and the phenology of sugar palm seed germination. This research aims to study the relationship between apokol position and the growth of sugar palm seedlings and their genetic diversity. The research applies Experiment in Completely Random Design with four treatments, each repeated five times. The four treatments are the apokol position, namely A: Apokol in right-center, B: Apokol in left-center, C: Apokol in left-bottom, and D: Apokol in right-bottom. The results showed that the fastest time for the coleoptile emergence was 40 days after transplanting in the right-center apokol position. Morphologically, there was no significant difference in the sugar palm seedling growth with each apokol position. On the other hand, we found that there were genetic diversities among them revealed by Simple Sequence Repeat (SSR) markers. The palm seeds with the right-center apokol position included the first cluster, and the second cluster consisted of left-center apokol, right- bottom apokol, and left-bottom apokol.
Co-Authors . Gusmini . Reflinaldon Afrima Sari Agil Syah Putra Agustian Agustian Agustian Ali Rahmat Ameilia, Reja Anwar, Aswaldi Aprisal Aprisal Aprisal Aprisal, Aprisal Aprizal Zainal Ardi Ardi Ardi Ardi Ardi Ardi Aries Novita Putri Armansyah Armansyah Astri Harnov Putri Auzar Syarif Awang Al Hamdi Benni Satria Berri Briliant Albar Bujang Rusman Cam Hong Ha Chairil Ezward, Chairil Damayanti, Elok Dede Suhendra Dewi Rezki Diah Sundari Ilyani Dini Hervani Dini Hervani Doni Hariandi Dwi Putri, Kesi Edwin Edwin Eka Candra Lina elara resigia Erlina Rahmayuni Eti Farda Husin Ezward, Chairil Ezward Fajriwandi Fajriwandi Faly Sandika Fatardho Zudri Ferry Lismanto Syaiful Fri Maulina FRISKIA HANATUL QOLBY Ghifron Ardana Hadi Rafindo Haliatur Rahma, Haliatur Hardiyanti, Lidya Sri Hasibuan, Muhammad Revan Hasmiandy Hamid Hayati, PK Dewi Henny Puspita Sari Hervani, Dini Irawati Chaniago Irawati Irawati Irawati Irawati Irfan Suliansyah Irwin Mirza Umami J Juniarti Jumsu Trisno Karjunita, Nike KRISTINA, NILLA Lubis, Reynaldi Fasya Abdullah Lucky Fhigo Raffi Lukito, Chandra Meisilva Erona Sitepu Muhammad Makky Muhammad Revan Hasibuan MUHSANATI MUHSANATI Muhsanati Muhsanati MUHSANATI, MUHSANATI Musliar Kasim Nadila Aulia Ardi Nalwida Rozen Nandita Samaralya Tori Netti Herawati Nika Rahma Yanti Ninda Rosadi, Firsta NOVRI NELLY Nurbailis Obel, Obel Pahlevi, Ilhan Pajri Ananta Yudha Pancolo Agung Nur Pamuji Pasha, Fadhil Kemal Prima Fithri Puan Habibah Rachmad Hersi Martinsyah Raesi, Syahyana Raffi, Lucky Fhigo Rafindo, Hadi Rahmadhini, Sari Ramadhan, Nugraha Ramadhan, Nugraha Ramadhano, Agung Refdinal Refdinal Reski Marbeni Putra Rika Hariance Risa Meutia Fiana Ronaldi, Ronaldi Roza Yunita Ryan Budi Setiawan Ryan Dwi Setyawan Sanna Paija Hasibuan Sari Rahmadhini Sari, Afrima Savitri, Yanny Shinta Mulyana Silvia Permata Sari Siska Efendi Siti Rahmah Sutoyo Sutoyo Syafrimen Yasin Syahyan Raesi Syarief, Zulfadly Syarief, Zulfadly Tajudin, Rian Trizelia . Utama, Syahrul Warnita Weni Veriani Winda Purnama Sari Winda Purnama Sari Wulan Kumala Sari Yaherwandi Yanny Savitri Yulmira Yanti Zahlul Ikhsan Zul Fahmi Zul Irfan Zuldadan Naspendra Zulfadly Syarief Zulfadly Syarif Zurai Resti