[학위논문]배양액 농도가 딸기 ‘설향’의 생육, 수량 및 과실의 품질에 미치는 영향 Effect of Nutrient Solution Strength on Growth, Fruit Quality and and Yield of Strawberry ‘seolhyang’ in Hydroponics원문보기
본 연구는 국내 딸기 재배 면적의 약 83%를 차지하는 ‘설향’ 딸기를 수경재배 할 때, 정식 후의 적절한 배양액 농도를 구명하고자 수행하였다. ‘설향’ 딸기를 크라운이 1cm이상이 되도록 균일하게 육묘한 후, 화아분화가 시작된 9월 16일에 코코피트를 충진한 수경재배 벤치에 정식하였다. 뿌리가 완전히 활착하여 생육이 안정된 후부터 야마자키의 딸기 배양액을 각 처리별로 ...
본 연구는 국내 딸기 재배 면적의 약 83%를 차지하는 ‘설향’ 딸기를 수경재배 할 때, 정식 후의 적절한 배양액 농도를 구명하고자 수행하였다. ‘설향’ 딸기를 크라운이 1cm이상이 되도록 균일하게 육묘한 후, 화아분화가 시작된 9월 16일에 코코피트를 충진한 수경재배 벤치에 정식하였다. 뿌리가 완전히 활착하여 생육이 안정된 후부터 야마자키의 딸기 배양액을 각 처리별로 EC 0.8, 1.2, 1.8 dS·m-1 로 급액 하였다. 정식 후의 지상부 생육은 EC 0.8 dS·m-1과 1.2 dS·m-1는 EC 1.8 dS·m-1보다 양호하였으며, EC 1.8 dS·m-1처리구에서는 생리장해 현상이 뚜렷하게 나타났다. 제 1화방의 개화는 EC 0.8 dS·m-1처리구가 가장 빨랐으며, 다른 처리구보다 5일 이상 개화 및 수확이 앞당겨지는 것이 확인되었다. 과장은 제 1화방과 제 4화방에서는 배양액의 농도가 낮을수록 길었으며, 제 2화방과 제 3화방에서는 EC 1.8dS·m-1처리구보다 EC 0.8dS·m-1처리구가 길었다. 과경은 EC 0.8과 1.2dS·m-1처리구는 제 4화방을 제외하고는 처리구간에 유의한 차이가 없었으나, EC 1.8dS·m-1처리구는 다른 처리구보다 짧았다. 과실의 경도는 제 1화방과 제 3화방은 처리구간에 유의한 차이가 없었고, 제 2화방과 제 4화방은 EC 1.8dS·m-1처리구보다 EC 0.8dS·m-1처리구가 높았다. 과실의 당도는 제 2화방과 제 4화방은 처리구간에 유의한 차이가 없었지만, 제 1화방과 제 3화방은 EC 0.8dS·m-1처리구의 가장 낮은 배양액 농도에서 가장 높은 수치를 나타내었다. 과실의 평균 무게는 제 1화방과 제 4화방은 배양액의 농도가 낮을수록 무거웠고, 제 2화방과 제 3화방에서는 EC 1.8 dS·m-1처리구가 다른 처리구들에 비해 낮게 나타났다. 과실의 수량은 EC 0.8dS·m-1 처리구가 가장 높은 수량을 보였으며, EC 1.8dS·m-1처리구가 가장 낮은 수량을 보였다. 본 실험의 결과에서 딸기 ‘설향’ 의 수경재배에서 정식 후 가장 적합한 배양액 농도는 EC 0.8 dS·m-1 인 것으로 생각되었다.
본 연구는 국내 딸기 재배 면적의 약 83%를 차지하는 ‘설향’ 딸기를 수경재배 할 때, 정식 후의 적절한 배양액 농도를 구명하고자 수행하였다. ‘설향’ 딸기를 크라운이 1cm이상이 되도록 균일하게 육묘한 후, 화아분화가 시작된 9월 16일에 코코피트를 충진한 수경재배 벤치에 정식하였다. 뿌리가 완전히 활착하여 생육이 안정된 후부터 야마자키의 딸기 배양액을 각 처리별로 EC 0.8, 1.2, 1.8 dS·m-1 로 급액 하였다. 정식 후의 지상부 생육은 EC 0.8 dS·m-1과 1.2 dS·m-1는 EC 1.8 dS·m-1보다 양호하였으며, EC 1.8 dS·m-1처리구에서는 생리장해 현상이 뚜렷하게 나타났다. 제 1화방의 개화는 EC 0.8 dS·m-1처리구가 가장 빨랐으며, 다른 처리구보다 5일 이상 개화 및 수확이 앞당겨지는 것이 확인되었다. 과장은 제 1화방과 제 4화방에서는 배양액의 농도가 낮을수록 길었으며, 제 2화방과 제 3화방에서는 EC 1.8dS·m-1처리구보다 EC 0.8dS·m-1처리구가 길었다. 과경은 EC 0.8과 1.2dS·m-1처리구는 제 4화방을 제외하고는 처리구간에 유의한 차이가 없었으나, EC 1.8dS·m-1처리구는 다른 처리구보다 짧았다. 과실의 경도는 제 1화방과 제 3화방은 처리구간에 유의한 차이가 없었고, 제 2화방과 제 4화방은 EC 1.8dS·m-1처리구보다 EC 0.8dS·m-1처리구가 높았다. 과실의 당도는 제 2화방과 제 4화방은 처리구간에 유의한 차이가 없었지만, 제 1화방과 제 3화방은 EC 0.8dS·m-1처리구의 가장 낮은 배양액 농도에서 가장 높은 수치를 나타내었다. 과실의 평균 무게는 제 1화방과 제 4화방은 배양액의 농도가 낮을수록 무거웠고, 제 2화방과 제 3화방에서는 EC 1.8 dS·m-1처리구가 다른 처리구들에 비해 낮게 나타났다. 과실의 수량은 EC 0.8dS·m-1 처리구가 가장 높은 수량을 보였으며, EC 1.8dS·m-1처리구가 가장 낮은 수량을 보였다. 본 실험의 결과에서 딸기 ‘설향’ 의 수경재배에서 정식 후 가장 적합한 배양액 농도는 EC 0.8 dS·m-1 인 것으로 생각되었다.
The purpose of the present study was to investigate the appropriate nutrient solution strength in the water culture of ‘Seolhyang’ strawberry after transplanting, wherein ‘Seolhyang’ is the variety accounting for about 83% of the entire strawberry cultivation area in South Korea. After uniformly rai...
The purpose of the present study was to investigate the appropriate nutrient solution strength in the water culture of ‘Seolhyang’ strawberry after transplanting, wherein ‘Seolhyang’ is the variety accounting for about 83% of the entire strawberry cultivation area in South Korea. After uniformly raising the seeds of the ‘Seolhyang’ strawberry until the crowns grew up to more than 1 cm, the seeds were transplanted to a hydroponic bench fill with coconut peat on September 16 when the floral differentiation began. After the seeds completely took root and started to grow stably, the Yamazaki’s strawberry nutrient solution was supplied at EC 0.8, 1.2, and 1.8 dS·m-1 to each of the treatments. The shoot growth after the transplantation was in the EC 0.8 dS·m-1 and 1.2 dS·m-1 treatments than in the EC 1.8 dS·m-1 treatment. The EC 1.8 dS·m-1 treatment showed a significant physiological stress. The flowering of the first flower cluster was earliest in the EC 0.8 dS·m-1 treatment, indicating that the flowering and harvest were earlier than those of other treatments by five days or more. The fruit length was longer at lower nutrient solution strength for the first and fourth flower clusters. However, the fruit length of the EC 0.8 dS·m-1 treatment was longer than that of the EC 1.8 dS·m-1 treatment for the second and third flower clusters. The fruit diameter of the EC 0.8 and 1.2 dS·m-1 treatments was not significantly different, except the fourth flower cluster. However, the fruit diameter of the EC 1.8 dS·m-1 treatment was smaller than that of other treatments. The fruit firmness was not significantly different between the treatments for the first and third flow clusters. However, the fruit firmness of the EC 0.8 dS·m-1 treatment was higher than that of the EC 1.8 dS·m-1 treatment for the second and fourth flower clusters. The soluble solids of fruit was not significantly different between the treatments for the second and fourth flower clusters. However, the highest soluble solids was found in the treatment with the lowest nutrient solution strength of EC 0.8 dS·m-1 for the first and third flower clusters. The average fruit weight was increased as the nutrient solution strength was decreased for the first and fourth flower clusters. The average fruit weight of the EC 1.8 dS·m-1 treatment was lower than that of other treatments for the second and third flower clusters. The number of fruits was highest in the EC 0.8 dS·m-1 treatment and lowest in the EC 1.8 dS·m-1 treatment. The result of the present study showed that the most appropriate nutrient solution strength in the water culture of ‘Seolhyang’ strawberry after transplanting may be EC 0.8 dS·m-1.
The purpose of the present study was to investigate the appropriate nutrient solution strength in the water culture of ‘Seolhyang’ strawberry after transplanting, wherein ‘Seolhyang’ is the variety accounting for about 83% of the entire strawberry cultivation area in South Korea. After uniformly raising the seeds of the ‘Seolhyang’ strawberry until the crowns grew up to more than 1 cm, the seeds were transplanted to a hydroponic bench fill with coconut peat on September 16 when the floral differentiation began. After the seeds completely took root and started to grow stably, the Yamazaki’s strawberry nutrient solution was supplied at EC 0.8, 1.2, and 1.8 dS·m-1 to each of the treatments. The shoot growth after the transplantation was in the EC 0.8 dS·m-1 and 1.2 dS·m-1 treatments than in the EC 1.8 dS·m-1 treatment. The EC 1.8 dS·m-1 treatment showed a significant physiological stress. The flowering of the first flower cluster was earliest in the EC 0.8 dS·m-1 treatment, indicating that the flowering and harvest were earlier than those of other treatments by five days or more. The fruit length was longer at lower nutrient solution strength for the first and fourth flower clusters. However, the fruit length of the EC 0.8 dS·m-1 treatment was longer than that of the EC 1.8 dS·m-1 treatment for the second and third flower clusters. The fruit diameter of the EC 0.8 and 1.2 dS·m-1 treatments was not significantly different, except the fourth flower cluster. However, the fruit diameter of the EC 1.8 dS·m-1 treatment was smaller than that of other treatments. The fruit firmness was not significantly different between the treatments for the first and third flow clusters. However, the fruit firmness of the EC 0.8 dS·m-1 treatment was higher than that of the EC 1.8 dS·m-1 treatment for the second and fourth flower clusters. The soluble solids of fruit was not significantly different between the treatments for the second and fourth flower clusters. However, the highest soluble solids was found in the treatment with the lowest nutrient solution strength of EC 0.8 dS·m-1 for the first and third flower clusters. The average fruit weight was increased as the nutrient solution strength was decreased for the first and fourth flower clusters. The average fruit weight of the EC 1.8 dS·m-1 treatment was lower than that of other treatments for the second and third flower clusters. The number of fruits was highest in the EC 0.8 dS·m-1 treatment and lowest in the EC 1.8 dS·m-1 treatment. The result of the present study showed that the most appropriate nutrient solution strength in the water culture of ‘Seolhyang’ strawberry after transplanting may be EC 0.8 dS·m-1.
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