Article Info 제28권 2호 강원 농업생명환경연구 Vol.28, No.2, pp.50-55, 2016
Title Influence of Environmental Factors on Spear Quality of Asparagus (Asparagus officinalis L.) during Spring Time in Western Gangwon Province
Author Seo, H. T.1 , Y. J. Kim1 , E. H. Jang1 , J. H. Won1 and H. M. Kang2*
Institutions 1Gangwon Provincial ARES, Chuncheon 24341, Korea
2Department of Horticulture, Kangwon National University, Chuncheon 24341, Korea 
Abstract Recently, asparagus (Asparagus officinalis L.) has become a popular vegetable in republic of Korea. So the greenhouse cultivated area of asparagus has increased by more than 100 ha. In particular, the cultivated areas (chuncheon and yanggu) in western Gangwon province were increase rapidly. But we have problem of standardization of spear quality during spring harvest of asparagus because of the last cold snap. This study was conducted to investigate correlation between environmental factors (temperature, lowest air temp., ground temp., RH and solar radiation) and spear quality, whereby, to provide basic information of growing conditions of standardized asparagus for export. Correlations between environmental factors for 3 days before harvest date and fresh weight, SSC, firmness were no significant correlation. On the other hand, the mean lowest air temperature for 3 days before harvest date was strongly affecting red color intensity (a) on top of spear due to significant at its correlation coefficient (-0.838**). As a result, when the mean lowest air temperature during 3 days before harvest date is decreased by 1℃, it showed that red color intensity (a) on top of spear increases 1.35 unit.
Keyword Asparagus, Correlation, Lowest air temperature, Red color intensity, Spear quality.
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