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Response of Growth and Photosynthesis of Pepper Seedlings to Potassium Fertilizer  

Ahn, Chong-Kil (Department of Horticulture, Miryang National University)
Son, Beung-Gu (Department of Horticulture, Miryang National University)
Kang, Jum-Soon (Department of Horticulture, Miryang National University)
Lee, Yong-Jae (Department of Horticulture, Miryang National University)
Chang, Min-Kyu (Department of Horticulture, Miryang National University)
Son, Kil-Woo (Department of Horticulture, Miryang National University)
Park, Yaung-Hoon (Department of Horticulture, Miryang National University)
Choi, Young-Whan (Department of Horticulture, Miryang National University)
Publication Information
Journal of Bio-Environment Control / v.12, no.1, 2003 , pp. 26-29 More about this Journal
Abstract
Experiments were conducted to estimate optimal potassium strength in the nutrient solution for ‘Nokgwang’and‘Kwari’green pepper seedlings cultured in small plug-cell trays. Plant height, stem diameter, and leaf area increased with increasing K concentration, with greater effect on ‘Kwari’ than ‘Nokgwang’. Total dry weight increased by increasing potassium strength.‘Kwari’had heavier dry weight than ‘Nokgwang’Chlorophyll content differed by cultivars and potassium strength. The highest chlorophyll content was obtained at 2.0 strength potassium in‘Nokgwang’, but not in‘Kwari’Net photosynthesis was greater in plants fertilized with 1.5 strength potassium for‘Nokgwang’and 2.0 strength potassium for ‘Kwari’than the other treatments.
Keywords
potassium; photosynthesis; chlorophyll; stomatal conductance;
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