European Journal of Horticultural Science

eJHS (European Journal of Horticultural Science - ISSN: 1611-4426 print and 1611-4434 online) publishes original research articles and reviews on significant plant science discoveries and new or modified methodologies and technologies with a broad international and cross-disciplinary interest in the scope of global horticulture.
eJHS focus is on applied and fundamental aspects of the entire food value chain, ranging from breeding, production, processing, trading to retailing of horticultural crops and commodities in temperate, subtropical and tropical regions. In particular eJHS emphasizes integrated crop management strategies during the preharvest and postharvest stages, aiming at sustainably increasing the quantity and quality of horticultural products.
The eJHS publishes peer-reviewed articles, reviews and special thematic issues; see www.ishs.org/ejhs for information.

DOI: 10.17660/eJHS.2023/028 Original article *Differences in photosynthetic characteristics of reproductive branches at different leaf positions of Rosa roxburghii* on the Yunnan Guizhou Plateau** Zhang Chao, Qin Wen, Fang Yumei, Guo Lina and Wei Linjuan Liupanshui Normal University, Liupanshui, Guizhou, China Summary and Fulltext

DOI: 10.17660/eJHS.2023/029 Original article Onion AcCDF4 ectopia overexpression regulates flowering and abiotic stress response in Arabidopsis Lei Qin^1,2, Yuqi Zhang^1,2, Xiong Wu³, Jie Sheng^1,2, Huili Ma^1,2, Yifan Geng ^1,2 and Yong Wang ^1,2 ¹ Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs/Northeast Agricultural University, Harbin, P.R. China ² College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, P.R. China ³ Vegetable Research Institute of Shandong Academy of Agricultural Sciences, Key Laboratory for Biology of Greenhouse Vegetables of Shandong Province, National Improvement Center for Vegetables, Shandong Branch, Ji’nan, China Summary and Fulltext

DOI: 10.17660/eJHS.2023/030 Original article *Substrate amended with solid humic substances improved ‘Micro-Tom’ tomato (Solanum lycopersicum* L.) growth** Kuan Qin, J.T. Harvey, Chungkeun Lee and D.I. Leskovar Texas A&M AgriLife Research and Extension Center, Texas A&M University, Uvalde, TX, U.S.A. Summary and Fulltext

DOI: 10.17660/eJHS.2023/031 Original article Use of high concentrations of ethyl methanesulfonate to induce flower mutation and improve flowering in African violets A. Ghimire and Jong-Yi Fang Department of Tropical Agriculture and International Cooperation, National Pingtung University of Science and Technology, Pingtung, Taiwan Summary and Fulltext

DOI: 10.17660/eJHS.2023/032 Original article Summer pruning and pneumatic preharvest-defoliation affect the light distribution within the canopy and improve the fruit quality of two bicolored apple cultivars C. Andergassen^1,2, D.A. Hey¹, D. Pichler¹, M. Peterlin¹, M. Kelderer¹, P. Robatscher¹ and M. Tagliavini² ¹ Laimburg Research Centre, Pfatten (Vadena), Auer (Ora), Italy ² Faculty of Science and Technology, Free University of Bolzano, Bolzano, Italy Summary and Fulltext

DOI: 10.17660/eJHS.2023/033 Original article *Systemic induction of ß-1,3-glucanase and chitinase activities in black rot resistant mutants of Dendrobium* ‘Earsakul’ in response to Phytophthora palmivora infection** A. Khairum¹, W. Chueakhunthod¹, K. Siwapitakpong¹, P. Pornbungkerd², A. Tharapreuksapong ² and P.A. Tantasawat¹ ¹ School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Muang District, Nakhon Ratchasima, Thailand ² Center for Scientific and Technological Equipment, Suranaree University of Technology, Muang District, Nakhon Ratchasima, Thailand Summary and Fulltext