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자료유형
학술저널
저자정보
저널정보
한국약용작물학회 한국약용작물학회지 한국약용작물학회지 제25권 제6호
발행연도
2017.12
수록면
397 - 403 (7page)
DOI
10.7783/KJMCS.2017.25.6.397

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Background: This study was aimed at evaluating the growth, yield, and carbohydrate content in the whole Allium hookeri plant with shading treatment in hot summer.Methods and Results: Different shading rate, including 0 (control), 35 or 55%, was employed from the June 21 to August 31. Daily average air and soil temperature, which were approximately 2.5℃ and 3.8℃ lower, respectively, were observed with both 35% and 55% treatments in July and August, with no significant difference in daily maximum air temperature. Dry weights were high, approximately 40% and 48% for the shoot and 20% and 12% for the root, with the 35% and 55% treatments, respectively, 8 weeks after shading. Division number was increased by 13% and 19.8% with the 35% and 55% treatments, respectively. The mortality rates of 150 plants were 9.1%, 4.0%, and 1.3% with the 0 (control), 35% and 55% treatments, respectively. At 4 weeks after shading, the highest and lowest sucrose levels in both shoot and root were observed with the 35% and 55% treatments, respectively. At 8 weeks after shading, there was no significant difference in the sucrose content in the shoot among the treatments.Conclusions: The highest plant growth rate and yield with the 55% treatment may be related with the decrease in both air and soil temperatures, resulting in reducted leaf respiration and thus compensate net photosynthesis.

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