Whole‑Tree Storage of Non‑structural Carbohydrates in Apple and Pear Trees on Size‑Controlling Rootstocks

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25271121%3A_____%2F23%3AN0000130" target="_blank" >RIV/25271121:_____/23:N0000130 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007/s00344-023-11052-6" target="_blank" >https://link.springer.com/article/10.1007/s00344-023-11052-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00344-023-11052-6" target="_blank" >10.1007/s00344-023-11052-6</a>

Result language

angličtina

Original language name

Whole‑Tree Storage of Non‑structural Carbohydrates in Apple and Pear Trees on Size‑Controlling Rootstocks

Original language description

Size-controlling rootstocks have been one of the major innovations facilitating high-efficiency fruit production; however, biological mechanisms responsible for their size-controlling effect remain unclear. In this study we investigated if apple and pear trees grafted on dwarfing and invigorating rootstocks differ in the size and dynamics of non-structural carbohydrate (NSC) storage pools. Seasonal dynamics in NSC concentrations were assessed in current-year shoots, coarse roots, trunks, and leaves. These measurements were then upscaled to whole-organ and whole-tree NSC pools and mutually compared. Because of the small variation in the relative biomass partitioning and generally similar organ-level NSC concentrations, the size of the NSC pools scaled tightly with the overall tree biomass with vigorous trees having greater absolute storage pools compared to dwarfing trees. The magnitudes of the seasonal fluctuation in NSC pools (i.e., November to May difference) were in the range from 0.55 to 3.93 kg per tree and 20 to 50 g per kg of tree’s dry weight. In absolute terms, the seasonal fluctuations in NSC pools were higher in vigorously growing trees but in relative terms and also when scaled by the tree’s biomass the differences between the low and high vigor trees became negligible, suggesting that the low and high vigor trees rely on their NSC reserves to a similar extent during their annual growth cycle. Thus, our results provide no support that the observed differences in growth vigor are driven by the availability of C-reserves.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10611 - Plant sciences, botany

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Plant Growth Regulation

ISSN

1435-8107

e-ISSN

—

Volume of the periodical

42

Issue of the periodical within the volume

12

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

7759–7769

UT code for WoS article

001002448400001

EID of the result in the Scopus database

2-s2.0-85161437467