Vegetative Growth, Productivity, and Fruit Quality in Tall Spindle of ‘Fuji’/M.9 Apple Trees

Abstract

Research Report키큰방추형 '후지'/M.9 사과나무의 영양생장, 생산성 및 과실품질 Abstract: Well-feathered (over 10 feathers) 'Fuji'/M.9 apple trees were planted at 3.0 × 1.0 m and trained to slender spindle with 2.5 m height or to tall spindle with 3.5 m height, and the vegetative growth, productivity, and fruit quality of two training systems were compared for 8 years. The canopy volume of the tall spindle trees surpassed that of the slender spindle trees 4 years after planting and was 25% larger than that of the slender spindle trees 5 years after planting. The accumulated yield over 8 years for the tall spindle system was 14% higher than that of the slender spindle system. Alternate bearing and incidence of marssonina blotch were observed in both treatments after 5 years of planting. There was often vegetative imbalance in the trees however, the degree of yield loss and vegetative imbalance of the tall spindle trees was lower than those of the slender spindle trees. Soluble solid content and fruit red color of the tall spindle trees were higher than that of the slender spindle trees in 5 year after planting, resulting from increased light penetration in the canopy due to even distribution of lateral branches and from fruit bearing in different height locations of the trees. In conclusion, increasing the tree height to about 3.5 m using slender spindle 'Fuji'/M.9 apple trees planted with over 333 trees per 10a led to better light penetration, yield and fruit quality compared to a conventional wide training system with the slender spindle.Additional key words: accumulated yield, canopy volume, feather location in canopy, Malus domestica Borkh., slender spindle *Corresponding author: tmyoon@knu.ac.kr † These authors contributed equally to this work.※

Influence of Summer Pruning Time on Shoot Growth and Fruit Quality of ‘Fuji’/M.9 Apple Tree Damaged by the Low Air Temperature at Flowering Period

“…1; Table 3). 이는 수관 내 왕성한 신초생장에 의해 수관이 복잡해져, 농약이 수관 내부까 지 충분하게 살포되지 못한 사과나무에서 부란병이 발생하였 다는 보고 [17]와 동일하였다. Table 3.…”

Growth Control of Upper Part in ‘Fuji’/M.9 Apple Tree Canopy by Cutting Time of Trunk and Plant Growth Regulators

“…3.0 m (Kim et al, 1998a;Yang et al, 2010Yang et al, , 2015, 3 (Robinson et al, 2006). , M.26 Research Article Open Access , 2.5 m , (Yang et al, 2009). 3.0~4.0 m (Yang et al, 2009;Wertheim, 2005), (vertical axis) (super spindle) (tall spindle) (Robinson et al, 2006;Yang et al, 2015). Hampson (1997Hampson ( , 2004 , 2~3 3.0~3.6 m , (Kim et al, 1998a;Kim and Park, 2010) .…”

“…Ko (1999) Table 2). (Callesen, 1993;Wagenmakers and Callesen, 1995;Yang et al, 2009Yang et al, , 2015, (Jung and Choi, 2010), Sagong et al, 2014).…”

Optimum Crop Load in Different Planting Densities of Adult ‘Fuji’/M.9 Apple Tree for Preventing Biennial Bearing and Stabilizing Tree Vigor

“…과중 및 과실품질은 재식밀도 및 착과수준이 높을수록 나 무의 영양생장과 수관 내 광 투과율이 떨어져 감소된다 Eccher and Granelli, 2006;Granger et al, 1986;Ogata et al, 1986;Sansavini et al, 1986;Stover et al, 2001;Tustin et al, 1993 정도로 높이는 추세이다 (Kon et al, 2013;Robinson et al, 2006;Song et al, 2009;Wang and Cheng, 2011;Yang et al, 2009). 일반적으로 수고가 높을수록 주당 과실수 및 생 산량은 증가되는데 (Callesen, 1993;Wagenmakers and Callesen, 1989;1995), Barritt(1998) 추가 주요어 : 누적생산량, 착색, Malus domestica Borkh.,…”