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KMID : 0903619990400030381
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Journal of the Korean Society for Horticultural Science
1999 Volume.40 No. 3 p.381 ~ p.384
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Effect of Suerose, CO, Concentration, and PPF on Propagules Propagation and Growth of Gerbera hybrida ´Beauty´
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Abstract
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Seedlings of Gebera hybrida ´Beauty´ were employed for the measurement of propagule´s propagation and growth as affected by sucrose, photosynthetic photon flux (PPF), and CO₂. The number of shoots, fresh weight, dry weight, and leaf area significantly increased with increased sucrose concentration and PPF. However, under 100 μ㏖·m^(-2)·s^(-1) PPF, the number of shoots was promoted by 2% sucrose concentration as compared with 3% sucrose. The PPF of above 130 μ㏖·m^(-2)·s^(-1) strongly suppressed shoot formation but gave little effect on fresh weight, dry weight, and leaf area. The content of chlorophyll in leaves was the highest at 3% sucrose under the PPF of below 100 μ㏖·m^(-2)·s^(-1). But gave little effect on chlorophyll content with increased sucrose concentration under the PPF of above 130 μ㏖·m^(-2)·s^(-1). CO₂ treatment (500 μ㏖·㏖^(-1)) into culture vessel was not effective for propagule´s propagation and growth.
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