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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Journal of Applied Agricultural Science and Technology Open Global Scietific Journal Smart Dedication: Jurnal Pengabdian Masyarakat
Haryanti, Sindi
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Environmental Science Industrial & Manufacturing Engineering Nursing Public Health Social Sciences

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Effect of Ultraviolet-C Irradiation on Morphological Character Changes in Patchouli (Pogostemon cablin Benth.) Haryanti, Sindi; Yusniwati, Yusniwati; Gustian, Gustian
Journal of Applied Agricultural Science and Technology Vol. 8 No. 3 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i3.284

Abstract

Patchouli (Pogostemon cablin Benth.) is among the top 20 essential oil-producing plants traded in the global market. This plant shows narrow genetic diversity due to non-flowering and seed production, increasing the challenges in obtaining new varieties through crossbreeding. Therefore, this research aimed to apply mutation method using ultraviolet-C irradiation combined with tissue culture to broaden the genetic diversity of patchouli. The potential of UV-C irradiation and the morphological changes occurring in the plant were explored from October to December 2023 at the Tissue Culture Laboratory, Andalas University, Padang. In addition, the experiment was arranged in a Randomized Complete Block Design (RCBD) with 10 treatment levels and 3 groups. The treatments included UV-C irradiation doses of 0 (wild type), 30, 60, 90, 120, 150, 180, 210, 240, and 270 minutes at a distance of 30 cm. Data for each patchouli plant per observation variable were presented as mean values, variance, and standard deviation and analyzed using an unpaired t-test. The results showed that exposure to ultraviolet-C radiation impacted several morphological characteristics, such as chlorosis, delayed bud development, increased bud and leaf count, as well as faster bud growth. This phenomenon shows the potential of ultraviolet-C radiation as a physical mutagenic agent.
Sosialisasi Teknik Pembungaan Berbasis Perkebunan Berkelanjutan untuk Meningkatkan Produksi Tandan Buah Segar (TBS) Kelapa Sawit Salmiyati, Salmiyati; Rannando, Rannando; Swandi, Fradilla; Justisia, Bajora; Haryanti, Sindi
Smart Dedication: Jurnal Pengabdian Masyarakat Vol. 2 No. 2 (2025): Smart Dedication: Jurnal Pengabdian Masyarakat
Publisher : SMART SCIENTI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70427/smartdedication.v2i2.223

Abstract

Perkebunan Kelapa sawit milik petani swadaya di Indonesia mencapai 6.291 ribu hektar. Peningkatan luasan tersebut tidak seimbang dengan kemampuan dan pemahaman petani swadaya dalam membudidayakan kelapa sawit, yang terbukti dari rendahnya produksi tandan buah segar (TBS). Pengelolaan pembungaan harus didasari dengan pertumbuhan bunga jantan dan betina kelapa sawit. Desa Batang Nilo Kecil Pelalawan merupakan wilayah dengan petani swadaya kelapa sawit mencapai 90% dari seluruh masyarakatnya. Permasalahan ini dapat ditanggulangi dengan teknik pembungaan yang tepat. Kegiatan pengabdian ini bertujuan untuk mensosialisasikan tentang teknik pembungaan kelapa sawit berbasis perkebunan berkelanjutan dengan teknik budidaya berwawasan lingkungan. Metode pelaksanaan kegiatan meliputi penjajagan dan survey wilayah serta wawancara. Penyuluhan dilakukan dengan jalan memaparkan dan membagikan paket materi (pedoman pelatihan) dalam bentuk buku saku, praktek lapangan,  dengan pembuatan sebuah demplot untuk membuat model pembungaan kelapa sawit yang selanjutnya akan dijadikan contoh untuk aplikasi skala lahan lebih luas, menerapkan teknik pembungaan berbasis lingkungan pertanaman kelapa sawit berkelanjutan, Data  dianalisis secara deskriptif. Hasil sosialisasi menunjukkan pengelolaan bunga kelapa sawit secara optimal berkontribusi pada peningkatan produksi buah dan kualitas hasil panen. Strategi pemantauan perkembangan bunga, optimalisasi penyerbukan, pemangkasan yang tepat, serta pemenuhan nutrisi dan pengendalian hama, perkebunan kelapa sawit dapat mencapai produktivitas yang maksimal menciptakan perkebunan kelapa sawit berkelanjutan
Effectiveness of Bilimbi (Averrhoa bilimbi) and Lantana (Lantana camara) Leaf Extracts as Botanical Insecticides for Controlling Maize weevil (Sitophilus zeamais) Silalahi, Cecilya; Haryanti, Sindi; Solichah, Chimayatus
Open Global Scientific Journal Vol. 4 No. 1 (2025): Open Global Scientific Journal (OGSJ)
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ogsj.v4i1.48

Abstract

Background: Reduced production due to post-harvest pest attacks is a significant issue. Post-harvest pest control is crucial, and botanical pesticides are currently a primary option for post-harvest pest control. Bilimbi leaves (Averrhoa bilimbi) and lantana leaves (Lantana camara) contain active ingredients that have the potential to control the maize weevil (Sitophilus zeamais).Aims: This study aimed to determine the effect of bilimbi and lantana leaf extract on the Sitophilus zeamais population and the quality of maize seeds in storage, and to obtain the best concentration of bilimbi and lantana leaf extract in suppressing the Sitophilus zeamais population so that it can maintain the quality of maize seeds in storage.Methods: The experiment was arranged in a Completely Randomized Design (CRD) consisting of 7 treatments and 4 replications: control/no treatment (K), bilimbi leaf extract concentration of 3% (B1), 6% (B2), 9% (B3), and lantana leaf extract concentration of 3% (T1), 6% (T2), and 9% (T3). The variables observed were the Sitophilus zeamais population, germination power, and maize seed vigor index.Results: The results showed that various concentrations of bilimbi and lantana leaf extracts were effective in maintaining maize seed quality, particularly in terms of seed vigor index. The 9% concentration of bilimbi and lantana leaf extracts is best at suppressing Sitophilus zeamais.
Conservation Comprehensive Approach: Study on Exploration, Habitat Analysis, Propagation, and Reintroduction of the Indonesian Endemic Endangered Titan Arum (Amorphophallus titanum Becc.) Setiawan, Ryan Budi; Yusniwati, Yusniwati; Rahma Wati, Dela; Purnama Sari, Indah; Rahmah, Siti; Haryanti, Sindi; Arief Laksana Bosma, Pandu
Jurnal Manajemen Hutan Tropika Vol. 31 No. 3 (2025)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.31.3.261

Abstract

Titan arum (Amorphophallus titanum Becc.) is an endemic species of Indonesia that is found naturally only in Sumatra and is classified as endangered, with an estimated 303 mature individuals remaining in their natural habitat. The population is decreasing due to deforestation, tuber exploitation, long flowering times, and protandry. Therefore, both in-situ and ex-situ conservation programs are necessary to preserve this species. The research aims to explore natural populations, analyze habitat conditions, develop propagation methods, and conduct reintroduction efforts to support the conservation of A. titanum. This study was conducted from 2023 to 2024 in Palupuah, Agam Regency, the Agriculture Faculty of Universitas Andalas, and several locations for the reintroduction of A. titanum. The research found that A. titanum habitat consists of forests rich in humus and litter, as well as banana cultivation areas. During the exploration, 7 individuals were identified: one in dormancy, one fruiting, and 5 in the vegetative phase. Seed germination experiments categorized seeds into seven classes based on their weight. The most dominant seed class weighed between 2.9 g and 3.2 g, comprising 38 seeds or 26.9% of the total. The germination rate and seedling growth were high, as all seeds exhibited 100% and produced seedlings of relatively uniform size. Propagation was carried out using in vitro culture techniques with petiole explants. The results showed that 2 mg L-1 benzyl aminopurine (BAP) successfully induced callus formation with a 100% induction rate, while a concentration of 1.5 mg L-1 achieved the highest shoot induction rate at 58.3%, with an average of 1.3 shoots and 7.9 roots per explant. The propagated seedlings were subsequently replanted in several locations for reintroduction activities.
Co-Authors Arief Laksana Bosma, Pandu Gustian Gustian Justisia, Bajora Purnama Sari, Indah Rahma Wati, Dela Rannando, Rannando Ryan Budi Setiawan Salmiyati, Salmiyati Sembiring, Rinawati Silalahi, Cecilya Solichah, Chimayatus Swandi, Fradilla Yusniwati Yusniwati