토양염농도에 따른 감자 품종들의 생장특성 (Physiological Response of Potato Variety to Soil Salinity)

서지정보

· 발행기관 : 한국작물학회
· 수록지 정보 : 한국작물학회지 / 58권 / 2호 / 85 ~ 90페이지
· 저자명 : 김선, 양창휴, 정재혁, 최원영, 이규성, 김시주

초록

This study was conducted to examine the basis for the information to select the suitable potato varieties grown in new reclaimed land. The potatoes of five varieties were planted in the port with 4 different electrical conductivities of saturated extracts of soil taken the Saemangeum reclamation area, which was made of non-treatment salt and three concentrations of salt treatment, 1.6 dS m-1, 3.2 dS m-1, 4.8 dS m-1,respectively. All of the potato varieties were uniformly emerged without missing plant in all treatment groups,even 4.8 dS m-1 treatment group. According to the salt concentration of soil, required date to the emergence of the potato comparing to non-treatment salt was delayed 3-4 days in 1.6 dS m-1, 6-10 days in 3.2 dS m-1, 7-13 days in 4.8 dS m-1,respectively, and the number of its branch decreased by 14-58% comparing to non-treatment salt depending on varieties. Since the increase of the salt concentration of the soil was more serious the decrease of the number of its branch, but plant height tended to increase when branch number per plant was small, which was depending on more number of its branch than salt concentration. Fresh tuber yield of potato comparing to non-treatment salt were decrease 33.7% in 1.6 dS m-1, 59.5% in 3.2 dS m-1, 79.3%7-13 days in 4.8 dS m-1, respectively. The threshold EC starting the growth inhibition of fresh weight decreased was 1.2 dS m-1 for Chudong, 1.8 m-1 for Chubeak, 1.9 m-1for Chugang and Chuyeong, and 2.0 m-1 for Sumi, and EC which decreased 50% of dry weight index was 2.4 dS m-1for Chubaek, 2.45 dS m-1 for Chudong, 2.81 dS m-1 for Chugang, 3.03 dS m-1for Chuyeong, and 3.29 dS m-1 for Sumi. The present results suggest that Sumi is considered to the suitable potato variety grown on saline soils

영어초록

This study was conducted to examine the basis for the information to select the suitable potato varieties grown in new reclaimed land. The potatoes of five varieties were planted in the port with 4 different electrical conductivities of saturated extracts of soil taken the Saemangeum reclamation area, which was made of non-treatment salt and three concentrations of salt treatment, 1.6 dS m-1, 3.2 dS m-1, 4.8 dS m-1,respectively. All of the potato varieties were uniformly emerged without missing plant in all treatment groups,even 4.8 dS m-1 treatment group. According to the salt concentration of soil, required date to the emergence of the potato comparing to non-treatment salt was delayed 3-4 days in 1.6 dS m-1, 6-10 days in 3.2 dS m-1, 7-13 days in 4.8 dS m-1,respectively, and the number of its branch decreased by 14-58% comparing to non-treatment salt depending on varieties. Since the increase of the salt concentration of the soil was more serious the decrease of the number of its branch, but plant height tended to increase when branch number per plant was small, which was depending on more number of its branch than salt concentration. Fresh tuber yield of potato comparing to non-treatment salt were decrease 33.7% in 1.6 dS m-1, 59.5% in 3.2 dS m-1, 79.3%7-13 days in 4.8 dS m-1, respectively. The threshold EC starting the growth inhibition of fresh weight decreased was 1.2 dS m-1 for Chudong, 1.8 m-1 for Chubeak, 1.9 m-1for Chugang and Chuyeong, and 2.0 m-1 for Sumi, and EC which decreased 50% of dry weight index was 2.4 dS m-1for Chubaek, 2.45 dS m-1 for Chudong, 2.81 dS m-1 for Chugang, 3.03 dS m-1for Chuyeong, and 3.29 dS m-1 for Sumi. The present results suggest that Sumi is considered to the suitable potato variety grown on saline soils

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