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http://dx.doi.org/10.12791/KSBEC.2013.22.4.421

Effect of Timing of Nutrient Starvation during Transplant Production on the Growth of Runner Plants and Yield of Strawberry 'Seolhyang'  

Kim, Dae-Young (Vegetable Research Division, National Institute of Horticultural & Herbal Science, RDA)
Chae, Won Byoung (Vegetable Research Division, National Institute of Horticultural & Herbal Science, RDA)
Kwak, Jung-Ho (Vegetable Research Division, National Institute of Horticultural & Herbal Science, RDA)
Park, Suhyung (Vegetable Research Division, National Institute of Horticultural & Herbal Science, RDA)
Cheong, Seung-Ryong (Vegetable Research Division, National Institute of Horticultural & Herbal Science, RDA)
Choi, Jong Myung (Department of Horticulture, Chungnam National University)
Yoon, Moo Kyoung (Vegetable Research Division, National Institute of Horticultural & Herbal Science, RDA)
Publication Information
Journal of Bio-Environment Control / v.22, no.4, 2013 , pp. 421-426 More about this Journal
Abstract
This study was conducted to investigate the effects of timing of nutrient starvation during transplant production on growth of runner plants and yield of strawberry 'Seolhyang' (Fragaria ${\times}$ ananassa). Nutrient solution supply at the level of EC (electrical conductivity) 0.8 $dS{\cdot}m^{-1}$ was terminated at interval about 10 days between July 25 and September 5. As a result, the growth of above-ground part was inhibited while root growth increased when the nutrient starvation treatment had been brought forward to July 25. It also reduced the T/R ratio significantly and chlorophyll content was tended to be lower than the other treatment. In addition, it significantly promoted the budding, flowering and harvest of first flower cluster. On the other hand, the period of harvest was delayed more than two weeks when the nutrients were continuously supplied after the middle of August. An accumulated marketable fruit yield per plant until the end of January and February was 169 and 266g, respectively in the treatment of nutrient starvation on July 25, which was 71 and 12% increase, respectively, as compared with those in the treatment of September 5. Therefore, the appropriate nutrient starvation in the late season of strawberry nursery period could be expected the increase in yield and income during the winter season by promoting the flower bud differentiation as reducing the endogenous nitrate level of the plantlet.
Keywords
budding; flowering; plantlet quality; T/R ratio;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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