Document Type : Original Article
Authors
1
Ph.ِD. student, Department of Horticultural Science and Landscape, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
2
Professor, Department of Horticultural Science and Landscape, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
3
Assistant Professor, Department of Horticultural Science and Landscape, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
4
Professor, Department of Soil Science, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
10.22034/plant.2024.141925.1121
Abstract
Roses, due to their delicacy and short vase life, require special care; however, the use of calcium can help improve their growth, quality, and longevity. This study was designed and conducted as a completely randomized design to investigate the effect of three calcium sources (distilled water as a control, calcium silicate, and calcium amino chelate) at a concentration of 160 ppm on the growth and quality of Rosa 'Samurai' in a hydroponic system. The results showed that foliar application of calcium silicate and calcium amino chelate improved growth traits, including stem diameter, fresh stem weight, flower diameter, flower count, and leaf area compared to the control. Calcium silicate and calcium amino chelate increased the photosynthesis rate by 36.94% and 30.78%, respectively. The highest anthocyanin content (8.39) was observed in the calcium amino chelate treatment, while the calcium concentrations in leaves and petals increased by 47.91% and 51.67%, respectively, in the calcium silicate treatment compared to the control. Calcium amino chelate also resulted in a 47.86% increase in root calcium concentration and a 3.3-day increase in vase life compared to the control. Additionally, calcium silicate increased iron concentration by 11.34%, manganese by 91.74%, and leaf nitrogen by 5.88%, while calcium amino chelate increased leaf and root copper concentrations by 4% and 25.41%, phosphorus concentration in leaves by 25.90%, and root potassium concentration by 74.84%. These results demonstrate the significant role of calcium, particularly calcium amino chelate, in enhancing nutrient absorption and improving the growth and quality of rose flowers
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