본 연구는 딸기 ‘설향’ 품종 육묘기의 온도와 일장을 처리하여 화아분화 촉진 범위 및 진행단계 그리고 개화기에 미치는 영향을 규명하고자 하였다. 딸기 육묘기 자연조건의 온도와 일장은 화아분화와 부의 상관관계(r=-0.90)가 나타났다. 자연 조건에서는 8월 24일(처리 후 14일) 첫 화아분화가 시작되었지만, 분화율은 10%로 낮았고, 9월 11일에 100% 화아분화가 되었다. 화아분화 단계는 9월 4일까지 1.8단계 수준으로 낮았으나, 화아분화 최적온도 아래로 떨어진 9월 11일에는 4.5단계 수준이 되었다. 온도 17℃, 일장...
본 연구는 딸기 ‘설향’ 품종 육묘기의 온도와 일장을 처리하여 화아분화 촉진 범위 및 진행단계 그리고 개화기에 미치는 영향을 규명하고자 하였다. 딸기 육묘기 자연조건의 온도와 일장은 화아분화와 부의 상관관계(r=-0.90)가 나타났다. 자연 조건에서는 8월 24일(처리 후 14일) 첫 화아분화가 시작되었지만, 분화율은 10%로 낮았고, 9월 11일에 100% 화아분화가 되었다. 화아분화 단계는 9월 4일까지 1.8단계 수준으로 낮았으나, 화아분화 최적온도 아래로 떨어진 9월 11일에는 4.5단계 수준이 되었다. 온도 17℃, 일장 8시간 처리에서는 8월 18일(처리 후 11일) 첫 화아분화가 시작되었고, 분화율은 80% 수준으로 높았다. 화아분화 단계는 8월 24일(처리 후 14일)부터 2.8단계 수준으로 높았으며, 9월 1일(처리 후 25일)에 4.4단계 이상의 수준을 보였다. 온도 20℃, 일장 8시간 처리에서는 8월 14일(처리 후 7일) 첫 화아분화가 시작되었고, 분화율은 66%로 가장 빠른 화아분화 개시를 보였다. 화아분화 단계는 0.67단계 수준이었으며, 9월 1일(처리 후 25일) 100% 화아분화가 완료되었고, 분화 단계는 3.8단계 수준을 보였다. 온도 20℃, 일장 13시간 처리에서는 8월 18일(처리 후 11일) 첫 화아분화가 시작되었고, 분화율은 40% 수준이었다. 화아분화 단계는 0.7 수준이었으며, 8월 24일(처리 후 14일) 100% 화아분화가 완료되었고, 분화 단계는 2.4단계 수준을 보였다. 온도 25℃, 일장 8시간 처리에서는 8월 14일(처리 후 7일) 첫 화아분화가 시작되었으나, 분화 속도는 가장 늦었다. 9월 11일 100% 화아분화율을 보였으나, 분화 단계는 2.7단계 수준으로 낮은 결과를 보였다. 개화는 온도 17℃, 일장 8시간 처리에서 10월 9일로 가장 빠른 개화를 보였으며, 대조구는 10월 16일로 가장 늦은 개화를 보였다. 따라서, ‘설향’ 딸기 품종은 육묘 후반기에 온도 17℃∼25℃, 일장 13시간 이하 조건에서 약 11일간 처리하면, 자연 상태의 육묘보다 화아분화는 약 10일 촉진되었고, 개화는 약 6일 빠른 것으로 나타났다.
본 연구는 딸기 ‘설향’ 품종 육묘기의 온도와 일장을 처리하여 화아분화 촉진 범위 및 진행단계 그리고 개화기에 미치는 영향을 규명하고자 하였다. 딸기 육묘기 자연조건의 온도와 일장은 화아분화와 부의 상관관계(r=-0.90)가 나타났다. 자연 조건에서는 8월 24일(처리 후 14일) 첫 화아분화가 시작되었지만, 분화율은 10%로 낮았고, 9월 11일에 100% 화아분화가 되었다. 화아분화 단계는 9월 4일까지 1.8단계 수준으로 낮았으나, 화아분화 최적온도 아래로 떨어진 9월 11일에는 4.5단계 수준이 되었다. 온도 17℃, 일장 8시간 처리에서는 8월 18일(처리 후 11일) 첫 화아분화가 시작되었고, 분화율은 80% 수준으로 높았다. 화아분화 단계는 8월 24일(처리 후 14일)부터 2.8단계 수준으로 높았으며, 9월 1일(처리 후 25일)에 4.4단계 이상의 수준을 보였다. 온도 20℃, 일장 8시간 처리에서는 8월 14일(처리 후 7일) 첫 화아분화가 시작되었고, 분화율은 66%로 가장 빠른 화아분화 개시를 보였다. 화아분화 단계는 0.67단계 수준이었으며, 9월 1일(처리 후 25일) 100% 화아분화가 완료되었고, 분화 단계는 3.8단계 수준을 보였다. 온도 20℃, 일장 13시간 처리에서는 8월 18일(처리 후 11일) 첫 화아분화가 시작되었고, 분화율은 40% 수준이었다. 화아분화 단계는 0.7 수준이었으며, 8월 24일(처리 후 14일) 100% 화아분화가 완료되었고, 분화 단계는 2.4단계 수준을 보였다. 온도 25℃, 일장 8시간 처리에서는 8월 14일(처리 후 7일) 첫 화아분화가 시작되었으나, 분화 속도는 가장 늦었다. 9월 11일 100% 화아분화율을 보였으나, 분화 단계는 2.7단계 수준으로 낮은 결과를 보였다. 개화는 온도 17℃, 일장 8시간 처리에서 10월 9일로 가장 빠른 개화를 보였으며, 대조구는 10월 16일로 가장 늦은 개화를 보였다. 따라서, ‘설향’ 딸기 품종은 육묘 후반기에 온도 17℃∼25℃, 일장 13시간 이하 조건에서 약 11일간 처리하면, 자연 상태의 육묘보다 화아분화는 약 10일 촉진되었고, 개화는 약 6일 빠른 것으로 나타났다.
Strawberries are known to switch from nutritional growth to reproductive growth when given low temperature and single conditions, and proceed when the proper temperature is 15-25℃ and the day length is shorter than 13 hours before and after. This study was conducted to investigate the technology to ...
Strawberries are known to switch from nutritional growth to reproductive growth when given low temperature and single conditions, and proceed when the proper temperature is 15-25℃ and the day length is shorter than 13 hours before and after. This study was conducted to investigate the technology to promote flower bud differentiation according to the temperature and daylength treatment of ‘Sulhyang’ strawberries nursery plants. The experimental treatment was performed with a control and 4 treatments. Treatment 1 is treated at 17°C, 8 hours daylength, treatment 2 at 20°C, 8 hours daylength, treatment 3 at 20°C, 13 hours daylength, and treatment 4 at 25°C, 8 hours day length. Through experiments, flower bud differentiation and flowering period according to temperature and daylength treatment were investigated. Temperature and daylength conditions showed a high correlation(r=0.90) with strawberry seedling flower bud differentiation. Under natural conditions, the first flower bud differentiation began on August 24th (14 days after treatment), but the differentiation rate was low at 10%, and 100% took place on September 11th. The level of flower bud differentiation was low at 1.8 levels until September 4th, but it was at 4.5 levels on September 11th, when the optimal temperature of flower bud differentiation fell below the optimal temperature. In the eight-hour treatment at a temperature of 17°C, the first flower differentiation began on August 18th (11 days after treatment), and the differentiation rate was high at 80%. The level of flower bud differentiation was high from August 24th (14 days after treatment) to 2.8 levels, and on September 1st (25 days after treatment), it was 4.4 levels or higher. In the 8 hours treatment at a temperature of 20°C, the first flower bud differentiation began on August 14th (7 days after treatment), and the differentiation rate was 66%, showing the fastest flower bud differentiation initiation. The flower bud differentiation stage was 0.67 stages, and 100% flower bud differentiation was completed on September 1st (25 days after treatment), and the flower bud differentiation stage was 3.8 stages. In the treatment of 20°C and 13 hours a day, the first flower differentiation began on August 18th (11 days after treatment), and the differentiation rate was around 40%. The flower bud differentiation stage was 0.7, and 100% flower bud differentiation was completed on August 24th (14 days after treatment), and the flower bud differentiation stage was 2.4 stages. In the treatment of temperature 25°C and 8 hours a day, the first flower bud differentiation began on August 14th (7 days after treatment), but the rate of differentiation was the latest. On September 11th, the 100% flower differentiation rate was shown, but the differentiation stage was low at 2.7 levels. Flowering showed the fastest flowering to October 9th at a temperature of 17℃ and 8 hours of treatment per day, and the latest flowering to October 16th at a control. Therefore, if the temperature between 17°C and 25°C and a day of 13 hours or less is treated for about 11 days in the second half of the nursery for early production and stable growth of ‘Sulhyang’ strawberries, it is believed that flower differentiation and flowering period can be accelerated by more than 10 days compared to natural strawberry nursery cultivation.
Strawberries are known to switch from nutritional growth to reproductive growth when given low temperature and single conditions, and proceed when the proper temperature is 15-25℃ and the day length is shorter than 13 hours before and after. This study was conducted to investigate the technology to promote flower bud differentiation according to the temperature and daylength treatment of ‘Sulhyang’ strawberries nursery plants. The experimental treatment was performed with a control and 4 treatments. Treatment 1 is treated at 17°C, 8 hours daylength, treatment 2 at 20°C, 8 hours daylength, treatment 3 at 20°C, 13 hours daylength, and treatment 4 at 25°C, 8 hours day length. Through experiments, flower bud differentiation and flowering period according to temperature and daylength treatment were investigated. Temperature and daylength conditions showed a high correlation(r=0.90) with strawberry seedling flower bud differentiation. Under natural conditions, the first flower bud differentiation began on August 24th (14 days after treatment), but the differentiation rate was low at 10%, and 100% took place on September 11th. The level of flower bud differentiation was low at 1.8 levels until September 4th, but it was at 4.5 levels on September 11th, when the optimal temperature of flower bud differentiation fell below the optimal temperature. In the eight-hour treatment at a temperature of 17°C, the first flower differentiation began on August 18th (11 days after treatment), and the differentiation rate was high at 80%. The level of flower bud differentiation was high from August 24th (14 days after treatment) to 2.8 levels, and on September 1st (25 days after treatment), it was 4.4 levels or higher. In the 8 hours treatment at a temperature of 20°C, the first flower bud differentiation began on August 14th (7 days after treatment), and the differentiation rate was 66%, showing the fastest flower bud differentiation initiation. The flower bud differentiation stage was 0.67 stages, and 100% flower bud differentiation was completed on September 1st (25 days after treatment), and the flower bud differentiation stage was 3.8 stages. In the treatment of 20°C and 13 hours a day, the first flower differentiation began on August 18th (11 days after treatment), and the differentiation rate was around 40%. The flower bud differentiation stage was 0.7, and 100% flower bud differentiation was completed on August 24th (14 days after treatment), and the flower bud differentiation stage was 2.4 stages. In the treatment of temperature 25°C and 8 hours a day, the first flower bud differentiation began on August 14th (7 days after treatment), but the rate of differentiation was the latest. On September 11th, the 100% flower differentiation rate was shown, but the differentiation stage was low at 2.7 levels. Flowering showed the fastest flowering to October 9th at a temperature of 17℃ and 8 hours of treatment per day, and the latest flowering to October 16th at a control. Therefore, if the temperature between 17°C and 25°C and a day of 13 hours or less is treated for about 11 days in the second half of the nursery for early production and stable growth of ‘Sulhyang’ strawberries, it is believed that flower differentiation and flowering period can be accelerated by more than 10 days compared to natural strawberry nursery cultivation.
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