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http://dx.doi.org/10.7235/hort.2014.13074

Influence of Bicarbonate Concentrations in Nutrient Solution on the Growth, Occurrence of Daughter Plants and Nutrient Uptake in Vegetative Propagation of 'Seolhyang' Strawberry  

Lee, Hee Su (Department of Horticultural Science, Chungnam National University)
Choi, Jong Myung (Department of Horticultural Science, Chungnam National University)
Kim, Tae Il (Nonsan Strawberry Experiment Station, Chungcheongnam-go Agricultural Research & Extension Services)
Kim, Hyun Sook (Nonsan Strawberry Experiment Station, Chungcheongnam-go Agricultural Research & Extension Services)
Lee, In Ha (Nonsan Strawberry Experiment Station, Chungcheongnam-go Agricultural Research & Extension Services)
Publication Information
Horticultural Science & Technology / v.32, no.2, 2014 , pp. 149-156 More about this Journal
Abstract
The objective of this research was to investigate the influence of bicarbonate ($HCO_3{^-}$) concentrations in nutrient solution on the growth and physiological disorders in mother plants and occurrence of daughter plants in propagation of 'Seolhyang' strawberry (Fragaria ${\times}$ 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 $240mg{\cdot}L^{-1}$ of $HCO_3{^-}$. The symptoms of Fe, Zn and B deficiencies appeared on the mother plants in the $HCO_3{^-}$ of $240mg{\cdot}L^{-1}$ from the 60th day after treatment. The symptoms spread to all plants in the $240mg{\cdot}L^{-1}$ $HCO_3{^-}$ including daughter plants at 90 days after treatment. The$HCO_3{^-}$ concentrations higher than $120mg{\cdot}L^{-1}$ suppressed the growth of mother plants such as leaf number, chlorophyll content, fresh weight and other growth parameters. While the mother plants in $60mg{\cdot}L^{-1}$ $HCO_3{^-}$ produced 23 daughter plants, while mother plants in $240mg{\cdot}L^{-1}$ $HCO_3{^-}$ produced 13 daughter plants. The final pH 126 days after treatment in the $HCO_3{^-}$ of 60, 90, 120, 180 and $240mg{\cdot}L^{-1}$ were 5.4, 5.8, 7.3, 7.9, and 8.3, respectively. The elevation of $HCO_3{^-}$ 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 $HCO_3{^-}$ concentrations higher than $120mg{\cdot}L^{-1}$ inhibited the growth of mother plants and occurrence of daughter plants in vegetative propagation of 'Seolhyang' strawberry.
Keywords
EC; pH; physiological disorder; substrate; visual symptoms;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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