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http://dx.doi.org/10.7235/hort.2013.13058

Effect of Low Temperature-Darkness Treatment on Floral Initiation and Flowering Response of Korean Strawberry Cultivars  

Jun, Ha Joon (Department of Horticulture, Daegu University)
Liu, Shi Sheng (Department of Horticulture, Daegu University)
Jeon, Eui Hwan (Department of Horticulture, Daegu University)
Bae, Geun Hye (Department of Horticulture, Daegu University)
Kang, Su In (Department of Horticulture, Daegu University)
Publication Information
Horticultural Science & Technology / v.31, no.6, 2013 , pp. 726-731 More about this Journal
Abstract
Experiments were conducted to evaluate the effect of low temperature-darkness treatment on floral initiation in four kinds of Korean strawberry cultivars. Mother plants were planted on March 29 and daughter plants were raised for the experiment. Temperature treatment was done for 7, 14, and 21 days keeping $13^{\circ}C$ in cooling storage from August 29, September 5 and September 14 to September 21. After the treatment, flower bud initiation was examined by a microscope, and the seedlings were transplanted on hydroponic system with Yamazaki's strawberry solution of EC $0.8dS{\cdot}m^{-1}$ to check the flowering. 'Ssanta' and 'Maehyang' showed early flower bud initiation in 7 days treatment than 'Seolhyang' by microscope check. 'Ssanta', 'Daewang', and 'Maehyang' showed early flower bud initiation in 14 days treatment than 'Seolhyang'. There were no differences among the treatments in 21 days treatment. Percentage of flowering of 'Seolhyang' and 'Maehyang' by low temperature-darkness treatment didn't show any difference but 'Daewang' and 'Ssanta' showed high percentage of flowering. It suggested that low temperature-darkness treatment technique can be use for improving early flowering and yield of 'Ssanta' and 'Daewang' cultivars.
Keywords
Daewang; electrical conductivity; hydroponic system; nutrient solution; Ssanta;
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