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http://dx.doi.org/10.12791/KSBEC.2016.25.4.320

Effects of Shading Rates on Growth and Yield of Allium hookeri Cultivation at Greenhouse in Middle Area of Korea  

Park, Eui-Kwang (Division of Horticultural Research, Chungcheongbuk-do Agricultural Research and Extension Service)
Noh, Jae-Gwan (Division of Horticultural Research, Chungcheongbuk-do Agricultural Research and Extension Service)
Lee, Min-Jeong (Division of Horticultural Research, Chungcheongbuk-do Agricultural Research and Extension Service)
Nam, Sang-Young (Division of Horticultural Research, Chungcheongbuk-do Agricultural Research and Extension Service)
Hong, Eui-Yon (Division of Horticultural Research, Chungcheongbuk-do Agricultural Research and Extension Service)
Lee, Cheol-Hee (Department of Horticultural Science, Chungbuk National University)
Publication Information
Journal of Bio-Environment Control / v.25, no.4, 2016 , pp. 320-327 More about this Journal
Abstract
Allium hookeri is used for food and medical materials in Asia. This study was carried out to elucidate the effects of shading rates on growth and quality of A. hookeri cultivation in greenhouse. Treatments were given with 35%, 55%, 75% and 95% shading rates and non-shading (Control). Photosynthesis photon flux density (PPFD) of control, 35%, 55%, 75%, and 95% shading were 792, 515, 351, 182, and $78.2{\mu}mol{\cdot}m{\cdot}s^{-1}$ respectively. The emergence ratio was 98% under non-shading, 35% and 75% shading condition, and it was 100% under 55% and 95% shading condition on April 20, 2016. These results showed no correlation between emergence rate and shading treatment. When shading net was set up inside at greenhouse, fresh weights in control, 35%, 55%, 75%, and 95% shading treatments were 1,142, 3,511, 5,936, 6,408 and 3,779kg/10a, respectively. When shading net was set up outside at greenhouse, fresh weights in control, 55%, 75%, and 95% shading treatments were 1,372, 5,442, 6,238 and 3,595kg/10a, respectively. Dry weight, percentage of dry matter, number of leavesand branches, plant height and root length in 75% shading treatment were higher than other shading treatments. From these results, we suggested that the proper shading rate in a greenhouse is 75% for A. hookeri cultivation in middle area of Korea.
Keywords
Allium hookeri; shading rate; shading net; summer stress;
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Times Cited By KSCI : 12  (Citation Analysis)
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