Details
| Original language | English |
|---|---|
| Article number | 0054 |
| Journal | Horticulturae |
| Volume | 5 |
| Issue number | 3 |
| Early online date | 29 Jul 2019 |
| Publication status | Published - Sept 2019 |
Abstract
Little is known about factors affecting anthocyanin biosynthesis in red-fleshed apples (Malus x domestica Borkh.). The objective was to establish the effects of orchard management factors on flesh anthocyanin content of dark-colored (DC) and light-colored (LC) apple clones. Flesh color was assessed by measuring color in the L, a, b mode using a spectrophotometer and predicting the anthocyanin content based on relationships between the absorption of a flesh extract at 530 nm and the L-value determined using a spectrophotometer (r2 = 0.99 ***). Fruit from the DC clone were red by 86 days after full bloom (DAFB), whereas the LC clone began to color at 136 DAFB. Color intensity in both clones decreased from the top of the tree to the base. Further, the intensity of the flesh color of the DC clone decreased with shading (94% absorption of incident photosynthetic active radiation). Covering a fruit with a UV absorbing film (100% UV absorption) had no effect on flesh color in the DC clone but decreased color in the LC clone. Fruit thinning increased color in DC and LC fruit. There was little change in flesh color during storage. However, the DC clone developed severe flesh browning as storage progressed beyond 30 days. The results demonstrated that light (visible and UV wavelength) stimulated, whereas shade inhibited, anthocyanin biosynthesis in the flesh under orchard conditions.
Keywords
- Anthocyanin, Canopy, Crop load, Light interception, Malus x domestica, Parenchyma, UV light
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Plant Science
- Agricultural and Biological Sciences(all)
- Horticulture
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In: Horticulturae, Vol. 5, No. 3, 0054, 09.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Effect of orchard management factors on flesh color of two red-fleshed apple clones
AU - Wellner, Annika
AU - Grimm, Eckhard
AU - Knoche, Moritz
PY - 2019/9
Y1 - 2019/9
N2 - Little is known about factors affecting anthocyanin biosynthesis in red-fleshed apples (Malus x domestica Borkh.). The objective was to establish the effects of orchard management factors on flesh anthocyanin content of dark-colored (DC) and light-colored (LC) apple clones. Flesh color was assessed by measuring color in the L, a, b mode using a spectrophotometer and predicting the anthocyanin content based on relationships between the absorption of a flesh extract at 530 nm and the L-value determined using a spectrophotometer (r2 = 0.99 ***). Fruit from the DC clone were red by 86 days after full bloom (DAFB), whereas the LC clone began to color at 136 DAFB. Color intensity in both clones decreased from the top of the tree to the base. Further, the intensity of the flesh color of the DC clone decreased with shading (94% absorption of incident photosynthetic active radiation). Covering a fruit with a UV absorbing film (100% UV absorption) had no effect on flesh color in the DC clone but decreased color in the LC clone. Fruit thinning increased color in DC and LC fruit. There was little change in flesh color during storage. However, the DC clone developed severe flesh browning as storage progressed beyond 30 days. The results demonstrated that light (visible and UV wavelength) stimulated, whereas shade inhibited, anthocyanin biosynthesis in the flesh under orchard conditions.
AB - Little is known about factors affecting anthocyanin biosynthesis in red-fleshed apples (Malus x domestica Borkh.). The objective was to establish the effects of orchard management factors on flesh anthocyanin content of dark-colored (DC) and light-colored (LC) apple clones. Flesh color was assessed by measuring color in the L, a, b mode using a spectrophotometer and predicting the anthocyanin content based on relationships between the absorption of a flesh extract at 530 nm and the L-value determined using a spectrophotometer (r2 = 0.99 ***). Fruit from the DC clone were red by 86 days after full bloom (DAFB), whereas the LC clone began to color at 136 DAFB. Color intensity in both clones decreased from the top of the tree to the base. Further, the intensity of the flesh color of the DC clone decreased with shading (94% absorption of incident photosynthetic active radiation). Covering a fruit with a UV absorbing film (100% UV absorption) had no effect on flesh color in the DC clone but decreased color in the LC clone. Fruit thinning increased color in DC and LC fruit. There was little change in flesh color during storage. However, the DC clone developed severe flesh browning as storage progressed beyond 30 days. The results demonstrated that light (visible and UV wavelength) stimulated, whereas shade inhibited, anthocyanin biosynthesis in the flesh under orchard conditions.
KW - Anthocyanin
KW - Canopy
KW - Crop load
KW - Light interception
KW - Malus x domestica
KW - Parenchyma
KW - UV light
UR - http://www.scopus.com/inward/record.url?scp=85073616338&partnerID=8YFLogxK
U2 - 10.3390/horticulturae5030054
DO - 10.3390/horticulturae5030054
M3 - Article
AN - SCOPUS:85073616338
VL - 5
JO - Horticulturae
JF - Horticulturae
IS - 3
M1 - 0054
ER -