Abstract
Effects of fertilizer levels on tree growth and fruit quality of 'Hakuho' peaches (Prunus persica) were evaluated. Three levels, High (H), Medium (M), and Low (L) of complete liquid fertilizers were applied twice a week from bud break. H, M, and L levels of fertilizers contained 160, 80, and 40 ppm of nitrogen (N), respectively. The application rates were reduced to half at the end of the pit hardening stage. Shoot growth proceeded quickly in trees of the H treatment before the pit hardening stage, but it became more vigorous in the M treatment thereafter. Leaf chlorophyll and leaf N contents were higher in trees treated with higher levels of fertilizer, but the photosynthetic rate was low in the H treatment. Total soluble solids (TSS) and sucrose contents of the fruit were highest in the M treatment and lowest in the H treatment at harvest, whereas the titratable acidity, citric acid and malic acid were highest in the H treatment. Skin coloration was poorest in the H treatment fruit. γ-decalactone, a major constituent of peach aroma; was most abundant in fruit of the M treatment and lowest in the H treatment. Sensory evaluation of the M treatment fruit was rated the highest, whereas that of the H treatment was poorest. These results suggest that excessive fertilizer application for peach trees significantly diminishes fruit flavor by reducing sweetness as well as aroma.
| Original language | English |
|---|---|
| Pages (from-to) | 487-493 |
| Number of pages | 7 |
| Journal | Journal of the Japanese Society for Horticultural Science |
| Volume | 68 |
| Issue number | 3 |
| Publication status | Published - May 1999 |
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Keywords
- 'Hakuho' peach
- Aroma
- Fertilizer level
- Fruit quality
ASJC Scopus subject areas
- Horticulture
- Plant Science
Cite this
Effects of fertilizer levels on tree growth and fruit quality of 'Hakuho' peaches (Prunus persica). / Jia, Huijuan; Hirano, Ken; Okamoto, Goro.
In: Journal of the Japanese Society for Horticultural Science, Vol. 68, No. 3, 05.1999, p. 487-493.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effects of fertilizer levels on tree growth and fruit quality of 'Hakuho' peaches (Prunus persica)
AU - Jia, Huijuan
AU - Hirano, Ken
AU - Okamoto, Goro
PY - 1999/5
Y1 - 1999/5
N2 - Effects of fertilizer levels on tree growth and fruit quality of 'Hakuho' peaches (Prunus persica) were evaluated. Three levels, High (H), Medium (M), and Low (L) of complete liquid fertilizers were applied twice a week from bud break. H, M, and L levels of fertilizers contained 160, 80, and 40 ppm of nitrogen (N), respectively. The application rates were reduced to half at the end of the pit hardening stage. Shoot growth proceeded quickly in trees of the H treatment before the pit hardening stage, but it became more vigorous in the M treatment thereafter. Leaf chlorophyll and leaf N contents were higher in trees treated with higher levels of fertilizer, but the photosynthetic rate was low in the H treatment. Total soluble solids (TSS) and sucrose contents of the fruit were highest in the M treatment and lowest in the H treatment at harvest, whereas the titratable acidity, citric acid and malic acid were highest in the H treatment. Skin coloration was poorest in the H treatment fruit. γ-decalactone, a major constituent of peach aroma; was most abundant in fruit of the M treatment and lowest in the H treatment. Sensory evaluation of the M treatment fruit was rated the highest, whereas that of the H treatment was poorest. These results suggest that excessive fertilizer application for peach trees significantly diminishes fruit flavor by reducing sweetness as well as aroma.
AB - Effects of fertilizer levels on tree growth and fruit quality of 'Hakuho' peaches (Prunus persica) were evaluated. Three levels, High (H), Medium (M), and Low (L) of complete liquid fertilizers were applied twice a week from bud break. H, M, and L levels of fertilizers contained 160, 80, and 40 ppm of nitrogen (N), respectively. The application rates were reduced to half at the end of the pit hardening stage. Shoot growth proceeded quickly in trees of the H treatment before the pit hardening stage, but it became more vigorous in the M treatment thereafter. Leaf chlorophyll and leaf N contents were higher in trees treated with higher levels of fertilizer, but the photosynthetic rate was low in the H treatment. Total soluble solids (TSS) and sucrose contents of the fruit were highest in the M treatment and lowest in the H treatment at harvest, whereas the titratable acidity, citric acid and malic acid were highest in the H treatment. Skin coloration was poorest in the H treatment fruit. γ-decalactone, a major constituent of peach aroma; was most abundant in fruit of the M treatment and lowest in the H treatment. Sensory evaluation of the M treatment fruit was rated the highest, whereas that of the H treatment was poorest. These results suggest that excessive fertilizer application for peach trees significantly diminishes fruit flavor by reducing sweetness as well as aroma.
KW - 'Hakuho' peach
KW - Aroma
KW - Fertilizer level
KW - Fruit quality
UR - http://www.scopus.com/inward/record.url?scp=0032969228&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032969228&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0032969228
VL - 68
SP - 487
EP - 493
JO - Horticulture Journal
JF - Horticulture Journal
SN - 2189-0102
IS - 3
ER -