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KMID : 1024520190280010147
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Journal of the Environmental Sciences
2019 Volume.28 No. 1 p.147 ~ p.158
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Influence of Abnormally High Temperatures on Growth, Yield and Physiological Active Substances of Strawberry
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Lee Gyu-Bin
Lee Jung-Eun
Je Beong-Il
Lee Yong-Jae
Park Young-Hoon
Choi Young-Whan
Son Beung-Gu
Kang Nam-Jun
Kang Jum-Soon
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Abstract
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In this study, we investigated the influences of abnormal high temperature on growth, yield and physiologically active substances of the strawberry. General strawberry cultivars in the 20°C growth condition showed much better growth of leaf number, length, diameter along with plant height, compared with those in 22.5°C or 25°C . But the cultivars of both ‘Sulhyang’ and ‘Mehyang’ showed good growth and development at 25°C with the roots showing great growth at 20°C. The quality and yield of the strawberry were best in the 20°C growth condition, but the merchantability deteriorated in the 25°C high temperature condition. As for the content of the physiologically active substances of the strawberry, it increased at 20°C, the optimum growth temperature, but decreased at 25°C. The physiologically active substances in the strawberry differed among the cultivars, the contents of cyanidin-3-glucoside, cinchonine, ellagic acid and cinnamic acid higher in the ‘Mehyang’, whereas the content of fisetin is higher in the ‘Sulhyang’ cultivar.Consequentially, the high temperature in summer has a negative effect on the physiological active ingredients of the strawberry, which was increased in the strawberry cultivated at proper temperature, and high quality strawberry production was possible.
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KEYWORD
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Fruit quality, High temperature, HPLC, Quercetin, Strawberry
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