Tree Age Influences Nutrient Partitioning among Annually Removed Aboveground Organs of Peach

The aim of this research was to assess how fruit tree age influences nutrient partitioning patterns in aboveground organs. We selected 6-year-old (mature) and 20-year-old (old) ‘Cresthaven’ peach trees and measured the macronutrient concentrations in organs removed during pruning, thinning, harvesti...

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Main Authors: Qi Zhou, Juan Carlos Melgar
Format: Article
Language:English
Published: American Society for Horticultural Science (ASHS) 2020-03-01
Series:HortScience
Subjects:
Online Access:https://journals.ashs.org/hortsci/view/journals/hortsci/55/4/article-p560.xml
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author Qi Zhou
Juan Carlos Melgar
author_facet Qi Zhou
Juan Carlos Melgar
author_sort Qi Zhou
collection DOAJ
description The aim of this research was to assess how fruit tree age influences nutrient partitioning patterns in aboveground organs. We selected 6-year-old (mature) and 20-year-old (old) ‘Cresthaven’ peach trees and measured the macronutrient concentrations in organs removed during pruning, thinning, harvesting, and leaf fall for 3 years. Then, we calculated the total amount of nutrients removed at each event and studied the partitioning patterns between mature and old peach trees. The results showed that mature peach trees had higher phosphorus (P) and potassium (K) concentrations in fruit mesocarp and fallen leaves than old trees. When we estimated the total nutrient content, mature peach trees allocated more nitrogen (N), P, K, and calcium (Ca) to pruned wood and harvested fruit but had less N and Ca in senescing leaves compared with old peach trees. The results of this study suggest that the different proportion of organs removed through orchard management practices from trees of different ages as well as the concentration of nutrients in these organs must be considered when estimating nutrient restitution needs and tree nutritional requirements.
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spelling doaj.art-9eebdabcfb2b4a6a93320302f45531312022-12-22T01:54:23ZengAmerican Society for Horticultural Science (ASHS)HortScience2327-98342020-03-01554560564https://doi.org/10.21273/HORTSCI14731-19Tree Age Influences Nutrient Partitioning among Annually Removed Aboveground Organs of PeachQi Zhou Juan Carlos Melgar The aim of this research was to assess how fruit tree age influences nutrient partitioning patterns in aboveground organs. We selected 6-year-old (mature) and 20-year-old (old) ‘Cresthaven’ peach trees and measured the macronutrient concentrations in organs removed during pruning, thinning, harvesting, and leaf fall for 3 years. Then, we calculated the total amount of nutrients removed at each event and studied the partitioning patterns between mature and old peach trees. The results showed that mature peach trees had higher phosphorus (P) and potassium (K) concentrations in fruit mesocarp and fallen leaves than old trees. When we estimated the total nutrient content, mature peach trees allocated more nitrogen (N), P, K, and calcium (Ca) to pruned wood and harvested fruit but had less N and Ca in senescing leaves compared with old peach trees. The results of this study suggest that the different proportion of organs removed through orchard management practices from trees of different ages as well as the concentration of nutrients in these organs must be considered when estimating nutrient restitution needs and tree nutritional requirements.https://journals.ashs.org/hortsci/view/journals/hortsci/55/4/article-p560.xmlmature trees; mineral nutrition; nutrient allocation; old trees; prunus persica; rational fertilization
spellingShingle Qi Zhou
Juan Carlos Melgar
Tree Age Influences Nutrient Partitioning among Annually Removed Aboveground Organs of Peach
HortScience
mature trees; mineral nutrition; nutrient allocation; old trees; prunus persica; rational fertilization
title Tree Age Influences Nutrient Partitioning among Annually Removed Aboveground Organs of Peach
title_full Tree Age Influences Nutrient Partitioning among Annually Removed Aboveground Organs of Peach
title_fullStr Tree Age Influences Nutrient Partitioning among Annually Removed Aboveground Organs of Peach
title_full_unstemmed Tree Age Influences Nutrient Partitioning among Annually Removed Aboveground Organs of Peach
title_short Tree Age Influences Nutrient Partitioning among Annually Removed Aboveground Organs of Peach
title_sort tree age influences nutrient partitioning among annually removed aboveground organs of peach
topic mature trees; mineral nutrition; nutrient allocation; old trees; prunus persica; rational fertilization
url https://journals.ashs.org/hortsci/view/journals/hortsci/55/4/article-p560.xml
work_keys_str_mv AT qizhou treeageinfluencesnutrientpartitioningamongannuallyremovedabovegroundorgansofpeach
AT juancarlosmelgar treeageinfluencesnutrientpartitioningamongannuallyremovedabovegroundorgansofpeach