Article Per Year (5 Year)
p-Index From 2020 - 2025
0.751
P-Index
This Author published in this journals
All Journal HAYATI Journal of Biosciences Pelita Perkebunan Jurnal Dinamika Pengabdian (JDP) Agroteknika
Laurenze, Reynaldi
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Engineering Mechanical Engineering

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Soil Symbiosis Reimagined: Rhizobium and Mycorrhiza Influence on Soybean Performance in Early Oil Palm Ecosystems Anugraeni Rahman, Reski; Weny Respatie, Dyah; Tarwaca Susila Putra, Eka; Laurenze, Reynaldi
HAYATI Journal of Biosciences Vol. 32 No. 3 (2025): May 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.3.700-711

Abstract

The high demand for soybeans in Indonesia is not in line with national soybean production due to the harvest area decreasing every year. To increase national soybean production, the area of IOP (Immature Oil Plantation) one year has potential for soybean development. This study aimed to investigate the effect of Rhizobium spp. and arbuscular mycorrhizal fungi (AMF) inoculation on the physiological capacity, growth, and yield of the soybean plant planted between rows of IOP one-year-old. This research was carried out at PT Perkebunan Nusantara IV (PTPN IV), Adolina Afdeling 1, Serdang Bedagai Regency, North Sumatra, from March 2023 to June 2023. A two-factor Randomized Complete Block Design (RCBD) with four replications for all treatments was conducted in a field experiment. Experimental treatments include: 1) non-inoculated Rhizobium spp. + non-inoculated AMF (R0M0) (Control), 2) non-inoculated Rhizobium spp. + inoculation AMF (R0M1), 3) inoculation Rhizobium spp. + non-inoculated AMF (R1M0) and 4) inoculation Rhizobium spp. + inoculation AMF (R1M1). The results showed that the single arbuscular mycorrhizal fungi (AMF) inoculation treatment significantly enhanced soybean physiology, growth, and yield including relative water content (85.87%), nitrate reductase activity (8.98 µmol NO2-g BS-1 hour-1), stomatal density (775.16 mm), proline (17.76 µmol proline g BS-1), and ascorbate peroxidase (0.0068 U/min/mg).
PENYULUHAN PENGGUNAAN BENIH BERMUTU DALAM BUDIDAYA TANAMAN HORTIKULTURA PADA KELOMPOK WANITA TANI SELASIH KOTA MAKASSAR Riadi, Muh.; Dermawan, Rahmansyah; Iswoyo, Hari; Nurfaida, Nurfaida; Ridwan, Ifayanti; Dariati, Tigin; Mantja, Katriani; Yanti, Cri Wahyuni Brahmi; Laurenze, Reynaldi; Faried, Muh.; Bahrun, Abd. Haris; Anugerahwati, Andi
Jurnal Dinamika Pengabdian Vol. 10 No. 4 (2025): JURNAL DINAMIKA PENGABDIAN VOL. 10 NO. 4 JULI 2025
Publisher : Departemen Budidaya Pertanian Fakultas Pertanian UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jdp.v10i4.44748

Abstract

Kegiatan pengabdian kepada masyarakat yang dilaksanakan pada Kelompok Wanita Tani (KWT) Selasih bertujuan untuk memberikan pemahaman dan meningkatkan pengetahuan anggota KWT mengenai karakteristik benih bermutu dan dampak penggunaan benih bermutu terhadap produktivitas tanaman hortikultura. Pendekatan yang digunakan pada kegiatan pengabdian kepada masyarakat adalah partisipatif-edukatif dalam bentuk penyuluhan, dimana anggota mitra dilibatkan secara aktif dalam setiap tahapan kegiatan. Pada tahap akhir dilakukan evaluasi terhadap peningkatan pengetahuan mitra menggunakan pre-test dan post-test. Kegiatan penyuluhan dihadiri oleh 40 peserta yang terdiri atas anggota KWT Selasih, penyuluh pertanian dari Dinas Perikanan dan Pertanian (DP2) Kota Makassar, masyarakat sekitar, dosen dan mahasiswa. Kegiatan pengabdian meliputi pemberian materi oleh tim pengabdi kemudian dilanjutkan diskusi dan tanya jawab. Kegiatan penyuluhan telah berhasil meningkatkan pengetahuan dan pemahaman mitra tentang pentingnya menggunakan benih bermutu dalam budidaya tanaman hortikultura. Mitra juga telah memahami peran pemuliaan tanaman dalam menghasilkan benih dan bibit unggul tanaman hortikultura serta praktik budidaya yang baik menggunakan pupuk organik dan anorganik. Peningkatan pemahaman peserta ditunjukkan dari hasil pre-test dan post-test yakni dari seluruh pertanyaan terjadi peningkatan rata-rata sebesar 45,71% dari 22,86% menjadi 68,57%. Kata kunci: Benih bermutu, tanaman hortikultura, penyuluhan, kelompok wanita tani. ABSTRACT The community service activities carried out at the Selasih Women Farmers Group (KWT) aim to provide understanding and increase the knowledge of KWT members regarding the characteristics of high-quality seeds and the impact of using high-quality seeds on the productivity of horticultural crops. The approach used in the community service activities is participatory-educational in the form of counseling, where partner members are actively involved in every stage of the activity. At the final stage, an evaluation of the increase in partner knowledge was conducted using pre-tests and post-tests. The extension activity was attended by 40 participants, consisting of KWT Selasih members, agricultural extension officers from Department of Fisheries and Agriculture (DP2) of Makassar City, local community member, lecturers, and students. The community service activities included material delivery by the community service team, followed by discussions and question-and-answer sessions. The extension activity successfully increased partners' knowledge and understanding of the importance of using high-quality seeds in horticultural crop production. The partners also understood the role of plant breeding in producing high-quality seeds and seedlings for horticultural crops, as well as good cultivation practices using organic and inorganic fertilizers. The improvement in understanding was demonstrated by the results of the pre-test and post-test, namely from all questions there was an average increase from 22.86% to 68.57% or 45.71%. Keywords: High-quality seeds, horticulture crops, extension services, women farmers group.
Application of Coconut Shell Biochar and Rhizobacteria Consortium to Increase Cocoa Production (Theobroma cacao L.) Laurenze, Reynaldi; Ala, Ambo; Saleh, Ifayanti Ridwan
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol. 39 No. 2 (2023)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v39i2.545

Abstract

The decline in Indonesia’s cocoa production as a result of soil fertility degra dation causes fertilization to become one of effective effects. Because of that, it is possible to restore soil fertility potential by using soil fertility enhancer biochar combined with rhizobacteria consortium to create suitable conditions for plant.This research was aimed to study and investigate coconut shell biochar interacts with rhizobacteria in increasing cocoa production. This research was conducted at Kodeoha, North Kolaka, Southeast Sulawesi from September 2022 until March 2023. A split plot design with three replications each consisted of two experimental units was used as an experimental design. Biochar dosage as the main plot consisted of four levels, namely 0 ton ha-1 (control), 2.5 ton ha-1, 5 ton ha-1, and 7.5 ton ha-1 and rhizobacteria concentration as the sub plots consisted offour levels, namely 0 mL L-1, 50 mL L-1, 100 mL L-1, and 150 mL L-1. Results of this research showed a significant interaction between biochar 5 tons ha-1 and rhizobacteria 100 mL L-1 which provide best result for chlorophyll a (336 μmol m-2), chlorophyll b (150 μmol m-2), and total chlorophyll (484 μmol m-2). The interaction between biochar 5 tons ha-1 and rhizobacteria 150 mL L-1 showed the best results for number of harvested pods per tree (10.00 pods), bean weight per tree (606 g trees-1), stomata opening area (31 μm2). The interaction between biochar 7.5 tons ha-1 and rhizobacteria 150 mL L-1 showed the best results on the weight of 100 dry beans at water content 8% (159.03 g)
Keseimbangan Hormonal Pertumbuhan Vegetatif dan Generatif terhadap Produksi Kakao melalui Aplikasi Paclobutrazol Laurenze, Reynaldi; Nasaruddin, Nasaruddin; Rahman, Reski Anugraeni
Agroteknika Vol 8 No 3 (2025): September 2025
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/agroteknika.v8i3.529

Abstract

Produktivitas kakao di Indonesia, khususnya di Sulawesi Selatan, masih menghadapi tantangan rendahnya hasil panen akibat tingginya persaingan antara tunas muda dan buah sehingga terbentuk layu pentil. Mengingat peran strategis kakao dalam mendukung perekonomian lokal dan nasional, diperlukan inovasi dalam teknik budidaya untuk meningkatkan efisiensi reproduksi dan hasil tanaman. Salah satu pendekatan yang menjanjikan adalah penggunaan paclobutrazol sebagai zat pengatur tumbuh, yang berpotensi menekan pertumbuhan vegetatif dan mengalokasikan asimilat terfokus ke pertumbuhan reproduktif. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi paclobutrazol terhadap pertumbuhan reproduksi tanaman kakao dan mengetahui konsentrasi yang optimal untuk meningkatkan produksi buah kakao. Penelitian dilaksanakan di Desa Bonto Macinna, Kecamatan Gantarang, Kabupaten Bulukumba, Sulawesi Selatan pada bulan Juli 2021 hingga Januari 2022. Penelitian ini menggunakan Rancangan Acak Kelompok Lengkap (RAKL) dengan lima taraf konsentrasi paclobutrazol, yaitu 0 mL.L-1 (control), 5 mL.L-1, 10 mL.L-1, 15 mL.L-1, and 20 mL.L-1. Setiap perlakuan diulang sebanyak tiga kali sehingga terdapat 15 unit percobaan dan setiap unit terdiri atas 3 tanaman. Hasil penelitian menunjukkan bahwa pemberian paclobutrazol dengan konsentrasi 10 mL.L-1 secara signifikan memiliki produksi buah kakao tertinggi yaitu 309,44 kg.ha-1 dibandingkan dengan konsentrasi paclobutrazol lainnya. Penelitian ini juga menunjukkan bahwa 10 mL.L-1 merupakan konsentrasi yang optimal untuk meningkatkan pertumbuhan reproduksi dan memaksimalkan produksi kakao.
Co-Authors . NURFAIDA Ambo Ala, Ambo Anugerahwati, Andi Anugraeni Rahman, Reski Bahrun, Abd. Haris CRI WAHYUNI BRAHMI YANTI, CRI WAHYUNI BRAHMI Dariati, Tigin Dermawan, Rahmansyah Faried, Muh. Ifayanti Ridwan, Ifayanti Iswoyo, Hari Nasaruddin Nasaruddin Rahman, Reski Anugraeni Riadi, Muh. Saleh, Ifayanti Ridwan Tarwaca Susila Putra, Eka Weny Respatie, Dyah