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들깨 NaCl 농도, 온도에 따른 발아와 간척지 토양에서 용적밀도, 파종깊이, 염농도에 따른 출현 특성
오양열,이광승,옥희경,이학성,정서영,서보성,신영태,정강호,강방훈,조현숙,이수환,정진,김승연,김정인 한국작물학회 2023 한국작물학회지 Vol.68 No.4
Data on salt tolerance, optimal sowing depth, soil bulk density (pb) and cardinal temperatures required for the germination and emergence of perilla (Perilla frutescens (L.) Britt) are scarce for reclaimed land soil. An experiment was conducted across six temperature treatments (10, 15, 20 , 25, 30, and 35℃) to determine the cardinal temperature for perilla seed germination and four salinity levels (0, 20, 40, and 60 mM) to determine the salt tolerance. Another experiment was performed for quantifying the emergence response of perilla to pb (1.1, 1.3, and 1.5 g cm-3), sowing depth (1, 2, 3, and 4 cm) and soil salinity. The results revealed that increased sodium chloride levels caused a significant reduction in the seed germination at Deulhyang and Sodam. The optimum upper limit temperature was less than 35℃. The optimal sowing depth and soil bulk density were 1 cm and 1.1 g cm-3 respectively. Perilla seedling growth was inhibited at 1.9 dS m-1 although varying responses were observed. These results aid our understanding of the germination and emergence rate of these crops and provide data for field cultivation to optimize crop sowing in reclaimed land.