Luthfi Aziz Mahmud Siregar

Diversity of orchids in Taman Eden 100, Lumban Julu District, Toba Regency, North Sumatra, Indonesia

Arif Syahrizal, Luthfi Aziz Mahmud Siregar, Diana Sofia Hanafiah, Nurhasnah Manurung et autres

Orchid diversity in tropical forest ecosystems is increasingly threatened by habitat degradation and land-use change, highlighting the importance of biodiversity assessments in conservation areas. This study aimed to determine orchid species composition, species diversity, and the physical environmental conditions supporting orchid habitats …

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Application of Functional Bacteria and Rice Straw Compost to Improve Rice ( Oryza sativa L.) Production in Saline Paddy Fields

Mariani Sembiring, Muhammad Syahid Zidan, Luthfi Aziz Mahmud Siregar, Razali et autres

Abstract Soil degradation in paddy fields caused by salinity can induce abiotic stress that reduces the growth and production of rice. This study aimed to examine the effects of functional bacteria application and rice straw compost on the growth and production of …

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Genetic relatedness and antimicrobial resistance of Staphylococcus aureus in goats with subclinical mastitis, North Sumatra, Indonesia

Shinta Mutia Rambe Manalu, Lisnawita Lisnawita, Nevy Diana Hanafi, Luthfi Aziz Mahmud Siregar

Abstract. Manalu SMR, Lisnawita, Hanafi ND, Siregar LAM. 2026. Genetic relatedness and antimicrobial resistance of Staphylococcus aureus in goats with subclinical mastitis, North Sumatra, Indonesia. Biodiversitas 27 (2): d270233. https://doi.org/10.13057/biodiv/d270233. Staphylococcus aureus is widely recognized as a dominant etiological agent of mastitis …

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Mangrove structure, composition, and distribution through restoration of Indonesia’s mangrove: A systematic review

Andi Aznan Aznawi, Mohammad Basyuni, Luthfi Aziz Mahmud Siregar, Diana Sofia Hanafiah et autres

Mangrove forests are critical coastal ecosystems in tidal areas that play essential roles in maintaining marine ecosystem balance and protecting shorelines from erosion. Although covering only 0.7% of global forest area (13.4 million ha), mangroves store substantial carbon and provide vital ecosystem …

Mangrove structure, composition, and distribution through restoration of Indonesia’s mangrove: A systematic review

Andi Aznan Aznawi, Mohammad Basyuni, Luthfi Aziz Mahmud Siregar, Diana Sofia Hanafiah et autres

Mangrove forests are critical coastal ecosystems in tidal areas that play essential roles in maintaining marine ecosystem balance and protecting shorelines from erosion. Although covering only 0.7% of global forest area (13.4 million ha), mangroves store substantial carbon and provide vital ecosystem …

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Mangrove structure, composition, and distribution through restoration of Indonesia’s mangrove: A systematic review

Andi Aznan Aznawi, Mohammad Basyuni, Luthfi Aziz Mahmud Siregar, Diana Sofia Hanafiah et autres

Mangrove forests are critical coastal ecosystems in tidal areas that play essential roles in maintaining marine ecosystem balance and protecting shorelines from erosion. Although covering only 0.7% of global forest area (13.4 million ha), mangroves store substantial carbon and provide vital ecosystem …

Study of paclobutrazol application time and different varieties on the growth and production of cucumber plants (Cucumis sativus L.)

Amin Wahyudi Pane, Nini Rahmawati, Luthfi Aziz Mahmud Siregar

The decline in cucumber production is mainly due to inefficient cultivation therefore, plant growth regulators and superior varieties are needed to increase productivity. This study aimed to evaluate the effect of paclobutrazol application time and superior cucumber varieties on plant growth and …

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Improvement of Red Spinach ( Amaranthus tricolor L.) Growth under Salinity Stress through the Application of ACC Deaminase-Producing Bacteria and Organic Amendments

Mariani Sembiring, Suranti Pratiwi, Luthfi Aziz Mahmud Siregar, Wida Akasah

Abstract Salinity is an abiotic stress that can increase Aminocyclopropane carboxylic acid (ACC) levels, leading to reduced plant growth. This study aimed to determine the effect of applying ACC deaminase-producing bacteria and organic amendments on the growth of red spinach ( Amaranthus …

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Prevalence and risk factors of subclinical mastitis in traditional dairy goat farms in North Sumatra Province, Indonesia

Shinta Mutia Rambe Manalu, Lisnawita, Luthfi Aziz Mahmud Siregar

Abstract Subclinical mastitis (SCM) is a hidden but economically important disease in dairy goats, characterized by the absence of obvious clinical symptoms. The dairy goat industry in North Sumatra Province shows considerable potential, yet data on SCM prevalence and risk factors in …

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Morphological performance and genetic paramaters in the pruning of F3 generation from a three-parent cross of soybean varities ( Glycine max [L.] Merrill)

Dodi Irawan, Diana Sofia Hanafiah, Luthfi Aziz Mahmud Siregar

Abstract The productivity of soybean (Glycine max (L.) Merrill) can be enhanced via hybridization and management techniques like pruning, crucial for sustainable agriculture. This study aimed to assess the morphological traits and genetic parameters of an F3 soybean population derived from a …

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Chlorophyll content and stomatal density of Samosir local shallot M 1 V 2 generation by induced mutation for supporting sustainable agriculture

Yaya Hasanah, Diana Sofia Hanafiah, Luthfi Aziz Mahmud Siregar, Irda Safni et autres

Abstract Genetic improvement efforts for local Samosir shallots can be achieved through polyploidization techniques using colchicine. Colchicine is an alkaloid chemical compound that can stimulate polyploidy induction in plants during cell division by inhibiting chromosome segregation. This technique will affect the chlorophyll …

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The Role and Variability of Vitamin B1 in Plants

Novalina Novalina, Revandy I.M. Damanik, Asniwita Asniwita, Luthfi Aziz Mahmud Siregar

Vitamin B1 is one of vitamins that is soluble in water and has an important role, participating directly or indirectly in biological reactions for all living things. Vitamin B1 in plants plays a role primarily as a cofactor for enzymes involved in …

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