Effects of Calcium-Gluconate Concentrations on Growth and Fruit Quality of the Hydroponically Grown Tomato, 'Supermomotaro'
2010
Lee, G.J., Chungbuk Agricultural Research and Extension Service, Cheongwon, Republic of Korea | Kim, T.J., Chungbuk Agricultural Research and Extension Service, Cheongwon, Republic of Korea | Kim, H.H., Woosong Information College, Daejeon, Republic of Korea
This experiment investigated the effects of calcium-gluconate (Ca-glu) concentrations on growth and fruit quality of hydroponically grown tomato (Lycopersicon esculentum), cv 'Supermomotaro'. Ca-glu concentrations were added to Yamazaki's tomato solution at 0 (control), 0.3, 0.6, or 0.9 meㆍL-¹. from planting through harvest time. Ca-glu treatments did not affect plant height. The soluble solid content of fruit was not different among the treatments, but glucose concentration was increased by the 0.9 meㆍL-¹ Ca-glu treatment. Fruit firmness was not affected by the Ca-glu treatments. Total fruit weight and average fruit weight decreased with high Ca-glu treatments. Fruit Ca, K, and Mg concentrations increased with the addition of Ca-glu. The lycopene content was the highest in 0.6 meㆍL-¹ Ca-glu treatment.
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