Enhancement of Caffeine Concentration in Todolo Coffee Callus Cultures with L-Methionine and UV-Vis Spectrophotometry.

<b>Background and Objective:</b> Todolo coffee (<i>Coffea arabica</i> L. var. typica) is the oldest commercially grown coffee in the Toraja region of South Sulawesi and is currently at risk of extinction.

Uncovering the presence of CVPD disease in citrus varieties of South Sulawesi, Indonesia: A molecular approach.

Background: The citrus vein phloem degeneration (CVPD) disease is one of important diseases that infects citrus plants and threatens global citrus production and quality due to its severe symptoms and rapid spread. In the 2000s, South Sulawesi Province as one of the citrus producers in Indonesia reported CVPD infection. To date, it is still uncertain as to whether the citrus production center has already been rid of the CVPD infection, keeping in mind the low prevalence of certified citrus saplings use and sub-optimal management of plantations by farmers.

Culture Optimization of Pomelo Seeds ( (Burm.) Merr.): A South Sulawesi Orange.

<b>Background and Objective:</b> Indonesia boasts a variety of delicious tropical fruits, including pomelo, mainly grown in Pangkep Regency, South Sulawesi Province. However, in this region, some challenges hinder such as inadequate care, aging trees and limited seed supply hinder productivity in this region. <i>In vitro</i> culture methods present a solution by rapidly producing high quality, disease-free pomelo seeds.

Diverse Morphology and Anatomy of <i>Citrus</i> Spp. (Orange) in South Sulawesi, Indonesia Plantations: A Comprehensive Study.

&lt;b&gt;Background and Objective:&lt;/b&gt; South Sulawesi, one of the Indonesian provinces, is a producer of oranges with various varieties grown extensively for export and domestic use. Information about the diversity of oranges is crucial for plant breeding and germplasm conservation. This study aims to analyze the diversity of oranges from several plantation centers in South Sulawesi based on morphological and anatomical characteristics.