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한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY Vol.48 No.2
발행연도
2007.4
수록면
128 - 134 (7page)

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This study was carried out to determine the effects of Ca concentration of nutrient solution and foliar spray solution on stock plant growth and cutting production, and to investigate the optimum Ca concentration for the maximum cutting yield and quality in kalanchoe (Kalanchoe blossfeldiana ‘Margrethe’). Stock plants were treated with nutrient solutions of three Ca concentrations, 1.5, 3.0, and 6.0 mM, with Sonneveld solution base. After the termination of this experiment, another stock plants were sprayed uniformly everyday with 3mL per plant of 0.0, 0.5, and 1.0% CaCl₂ solution to leaves and supplied with Sonneveld solution to rhizosphere. In both experiments, stock plants were applied with these solution from 6 to 14 weeks after planting. Higher Ca improved stock plant growth and increased the number and size of cuttings. Cutting growth after 21 days of cultivation was better with 3.0-6.0 mM Ca than with 1.5 mM Ca. Carbohydrate contents and the ratio of total nonstructural carbohydrates to N also became higher with increasing Ca concentration. However, Ca of 6.0 mM suppressed K and Mg absorption and altered both pH and electrical conductivity of nutrient solution. Foliar spray of 0.5% CaCl₂ solution to stock plant promoted its growth, and 0.5-1.0% CaCl₂ foliar spray stimulated cutting yield, quality, and growth after 21 days of cultivation. Ca and K contents also increased as foliar spray concentration increased, whereas Mg content was not significantly affected by the treatments. Carbohydrate and starch contents increased with 0.5 and 1.0% CaCl₂ spray. Thus, 0.5% and 1.0% CaCl₂ spray was good for kalanchoe stock plant cultivation and 0.5% CaCl₂ is more economical. In conclusion, the combination of nutrient solution with 3.0 mM Ca and 0.5% CaCl₂ foliar spray is recommended for stock plant growth and cutting production without deficiency or excess damage in K. blossfeldiana ‘Margrethe’.
#carbohydrates #foliar spray #mineral nutrition #nutrient uptake #rooting ability

목차

Abstract
Introduction
Materials and Methods
Results and Discussion
Acknowledgements
Literature Cited

참고문헌 (17)

참고문헌 신청
1. [학술지(정기간행물)] - Bartal, A. / 1996 / Root restriction and potassium and calcium solution concentrations affect dry matter production, cation uptake, and blossom rot in greenhouse tomato. 121 : 649 ~ 655 google schola 2. [학술지(정기간행물)] - Bradford / / M. 1976. A rapid and sensitive method for the quantification of microgram quantities of protein utilizing the principle of protein dye binding. Anal. Biochem. 72 google schola 3. [학술지(정기간행물)] - Brauer / / and M. Sitt. 1990. Regulation of photosynthetic sucrose synthesis A role for calcium. Planta 182 google schola 4. [학술지(정기간행물)] - Fides Pot Plants / 2000 / Kalanchoe culture guide google schola 5. [학술지(정기간행물)] - Hartmann, H.T / 2002 / Plant propagation: Principles and practices google schola

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