Tarbiat Modares University Journal of Agricultural Science and Technology 1680-7073 28 2 2026 03 01 Foliar Nutrient Concentrations and Antioxidant Activity of Tea (Camellia sinensis L. (O) Kuntze) Planted in Peninsular Malaysia and its Relation to Soil Edaphic Factors 385 399 16866 EN Wisnu Eko Murdiono Department of Crop Science, Faculty of Agriculture, Putra University of Malaysia, 43400 Serdang, Selangor, Malaysia. AND Department of Agronomy, Faculty of Agriculture, Brawijaya University, Malang, Indonesia. Nur Amirah Syafiqah Salman Department of Crop Science, Faculty of Agriculture, Putra University of Malaysia, 43400 Serdang, Selangor, Malaysia. Uma Rani Sinniah Department of Crop Science, Faculty of Agriculture, Putra University of Malaysia, 43400 Serdang, Selangor, Malaysia. Ellisa Azura Azman Department of Crop Science, Faculty of Agriculture, Putra University of Malaysia, 43400 Serdang, Selangor, Malaysia. Mohd Izuan Effendi Halmi Biodiversity Unit, Institute of Bioscience (IBS), Putra University of Malaysia, 43400 Serdang, Selangor, Malaysia. Jean Wan Hong Yong Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Alnarp, Sweden. Abbey Maleyki Md. Jalil School of Nutrition and Dietetics, Faculty of Health Sciences, Sultan Zainal Abidin University (UniSZA), Terengganu 21300, Malaysia. Khairil Mahmud Department of Crop Science, Faculty of Agriculture, Putra University of Malaysia, 43400 Serdang, Selangor, Malaysia. AND Biodiversity Unit, Institute of Bioscience (IBS), Putra University of Malaysia, 43400 Serdang, Selangor, Malaysia. Journal Article 1970 01 01 <span lang="EN-MY">This study aimed to (1) Compare the nutritional characteristics and AOA</span> <span lang="EN-MY">(</span><span lang="EN-GB">antioxidant activity</span><span lang="EN-MY">) of clonal tea grown in lowland and highland plantations and (2) Investigate the influence of soil edaphic factors on tea foliar nutrition and AOA. Tea leaves and soils of fourteen tea clones were sampled between October 2021 to March 2022 from lowland and highland plantations in Peninsular Malaysia. Leaves were analysed for nutritional content and antioxidant activity, while soil samples underwent physical and nutritional analysis. Results showed significant variations in most foliar nutrients, except for Ca in the lowlands and Fe in the highlands. While the highland-grown tea exhibited higher nutrient concentration, lowland-grown tea demonstrated superior AOA. AT53 and 1248 clones were identified as promising among the clones, characterized by the highest nutrients and AOA levels, respectively. Soil nutrient availability significantly influenced foliar nutrient uptake, while soil pH was associated with AOA. Thus, the critical role of soil edaphic factors in shaping tea quality, providing valuable insight for tea growers to optimize soil and maintain tea yield and quality in the future. We found that soil nutrients have a significant association with nutrient uptake, while soil pH is associated with the agronomic characteristics of tea. </span> https://jast.modares.ac.ir/article_16866_180a2a0cd826ab55eefc878446dbf891.pdf