Article | 4. 2014 Vol. 32, Issue. 2
Influence of Bicarbonate Concentrations in Nutrient Solution on the Growth, Occurrence of Daughter Plants and Nutrient Uptake in Vegetative Propagation of ‘Seolhyang’ Strawberry



Department of Horticultural Science, Chungnam National University1
Nonsan Strawberry Experiment Station, Chungcheongnam-go Agricultural Research & Extension Services2




2014.4. 149:156


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The objective of this research was to investigate the influence of bicarbonate (HCO3-) concentrations in nutrient solution on the growth and physiological disorders in mother plants and occurrence of daughter plants in propagation of ‘Seolhyang’ strawberry (Fragaria × ananassa Duch.). To achieve this, the mother plants were transplanted to coir dust + perlite (7:3, v/v) medium and Hoagland solution was modified to contain 60, 90 (control), 120, 180, and 240 mg・L-1 of HCO3-. The symptoms of Fe, Zn and B deficiencies appeared on the mother plants in the HCO3- of 240 mg・L-1 from the 60th day after treatment. The symptoms spread to all plants in the 240 mg・L-1 HCO3- including daughter plants at 90 days after treatment. The HCO3- concentrations higher than 120 mg・L-1suppressed the growth of mother plants such as leaf number, chlorophyll content, fresh weight and other growth parameters. While the mother plants in 60 mg・L-1 HCO3- produced 23 daughter plants, while mother plants in 240 mg・L-1 HCO3- produced 13 daughter plants. The final pH 126 days after treatment in the HCO3- of 60, 90, 120, 180 and 240 mg・L-1 were 5.4, 5.8, 7.3, 7.9, and 8.3, respectively. The elevation of HCO3- concentrations in nutrient solution resulted in the decrease of Fe, Mn, Zn and Cu contents of above ground tissue 126 days after treatment. These results indicate that the HCO3- concentrations higher than 120 mg・L-1 inhibited the growth of mother plants and occurrence of daughter plants in vegetative propagation of ‘Seolhyang’ strawberry.



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