Sowing date as a determining factor for Roselle, Hibiscus sabdariffa, production: I. Effect on vegetative and yield components | ||||
Aswan University Journal of Sciences and Technology | ||||
Volume 4, Issue 1, March 2024, Page 28-37 PDF (436.63 K) | ||||
Document Type: Original papers | ||||
DOI: 10.21608/aujst.2024.337887 | ||||
View on SCiNiTO | ||||
Authors | ||||
Mostafa M. A. El-Sagher1; Gehan G. Mostafa2; El-Mowafy A. El-Ghadban1; Wagdi Saber Soliman 3; Abd-Allah Gahory 4 | ||||
1Department of Horticulture, Faculty of Agriculture and Natural Resources, Aswan University, Egypt. | ||||
2Department of Horticulture (Ornamental Plants), Faculty of Agriculture, Beni Suef University, Egypt | ||||
3Horticulture Department, Faculty of Agriculture and Natural Resources, Aswan University | ||||
4Horticulture Department, Faculty of Agriculture and Natural Resources, Aswan University, Aswan, Egypt | ||||
Abstract | ||||
Roselle holds a crucial role in both the pharmaceutical and food sectors, underscoring its economic and cultural significance. Given the global challenges to face climate change, determining the optimal sowing date for Roselle crop has become pivotal in agricultural practices. This study aimed to investigate the impact of planting dates on the morpho-physiological traits and productivity of Roselle in the newly reclaimed soil of Aswan governorate. Four planting dates were employed in the experiment; April 15th, April 30th, May 15th, and May 30th. The varying sowing date resulted in noteworthy differences in growth parameters, including plant height, stem diameter, number of branches and fruits per plant, shoot fresh and dry weights, as well as yield parameters including calyxes’ fresh and dry yield and seeds’ fresh and dry weights. Analysis of variance revealed that planting on May 15th consistently yielded higher values across vegetative traits. The observed growth performance during mid-May could be attributed to favorable conditions for plant development during this period. The planting on May 15th also demonstrated superior performance in terms of calyxes' fresh and dry yield and seeds’ fresh and dry weights. The results of this study suggest that this positive effect might be influenced by environmental conditions, particularly temperature and day length. Conclusively, the study emphasizes that planting on May 15th significantly enhanced the economic yield of Roselle, manifested through improved plant growth and increased fruit quantity per plant. | ||||
Keywords | ||||
Roselle; vegetative growth; calyxes yield; seed yield; sowing date | ||||
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