국가연구개발성과
논문 (학술지)
Daughter Plant Growth, Flowering and Fruit Yield in Strawberry in Response to Different Levels of Slow Release Fertilizer During the Nursery Period
| 등록번호 | - | SCI 구분
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※구분 : SCI(SCIE포함), 비SCI |
SCI |
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| 저자명 (주·공동저자) | Yoon Hae Suk; 홍광표 ; 안재욱; 장영호; 김주영 ※ 과제 참여정보와 일치하는 연구자 상세정보로 정확하지 않을 수 있습니다. 동일저자 논문보기 |
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| 논문구분 | 국내전문학술지 | 학술지명 | HORTICULTURAL SCIENCE & TECHNOLOGY |
| ISSN | 1226-8763 | 학술지 출판일자 | 2018-02-01 |
| 학술지 볼륨번호 | 36 | 논문페이지 | 20 ~ 27 |
| 학술지 임팩트팩터 | 0.365 | 기여율 | 100 % |
| DOI | 10.12972/kjhst.20180003 | ||
| 초록 | Abstract. Mother plants of ‘Maehyang’ and ‘Seolhyang’ were planted on April 5, 2013. Daughter plantlets were proliferated in seedling trays with 24 cells. Each conical cell had a cup (volume, 135mL) filled with substrate mixed with commercial fertilizer (11-11-17, 6 weeks, Osmocote®) at four different levels : 1) N, P, K was supplied at 0-0-0 mg per daughter plantlet, 2) 25-11-32 mg 3) 50-22-63 mg, and 4) 100-43-127 mg. Increasing fertilization levels produced plantlets with greater crown diameter, leaf area and dry weight. With increasing fertilization level, more number of large- and medium-sized plantlets were produced with less number of small-sized plantlets. The contents of N, P and K in the leaves were also increased. Flower bud initiation time of ‘Maehyang’ treated with N, P, K at 0-0-0 mg, 25-11-32 mg, and 50-22-63 mg was earlier (September 13) than those treated with N, P, K at 100-43-127 mg. The first flower budding of ‘Maehyang’ treated with N, P, K at 100-43-127 mg was delayed by 11 days but the second flower budding was shortened by 9 days. The flower bud initiation of ‘Seolhyang’ became late as the level of fertilization was increased. The date of flower bud initiation with N, P, K at 0-0-0 mg was the earliest (September 13). It was delayed by 4, 9, and 19 days in the treatment with N, P, K at 25-11-32 mg, 50-22-63 mg, and 100-43-127 mg, respectively. The first harvesting time with N, P, K at 50-22-63 mg and 100-43-127 mg was delayed by 10 and 27 days, respectively. The lower fertilization level, the earlier the first harvesting time, thus the more fruit yield from November to January for both cultivars. For ‘Maehyang’, the yield with N, P, K at 100-43-127 treatment was the highest in January and Febuary. However, for ‘Seolhyang’, the yield was the highest in January but the lowest in February. The total yields of ‘Maehyang’ (from November to May) were not different among the four different fertilizer levels, ranging from 3,339 to 3,518 kg. However, for ‘Seolhyang’, the total yield was the highest (5,106 kg) in the N, P, K at 0-0-0 mg. It was reduced by approximately 12% in the treatments with N, P, K at 50-22-63 and 100-43-127 mg. These results showed that higher fertilization levels delayed the first inflorescence initiation time and the first harvesting time. For cultivars such as ‘Seolhyang’ that are sensitive to nitrogen fertilization levels, with fertilization level higher than 50 mg nitrogen during seedling period, flowering delay could cause excessive fruit load of the first cluster and result in reduced total fruit yield. For cultivars such as ‘Maehyang’ that are less sensitive to nitrogen fertilization levels, higher fertilization levels could promote successive flower budding appearance, thus increasing early yield with higher market value. | ||
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