Evidence map›Paper›PMID 42047832›Full record

ArticlePlanta2026

Trees just go "nuts": prioritizing carbon allocation to yield in almond trees.

Shreya S Veeravelli, Andrew J McElrone, Ian R Wright, Mina Momayyezi, Kyle R Knipper, Nicolas E Bambach, Sebastian Castro Bustamante, Andrew J Gal, Sat Darshan S Khalsa, Ranjith Karunakaran and 2 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Planta, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Shreya S VeeravelliDepartment of Botany and Plant Pathology, Purdue University, 915 Mitch Daniels Blvd, West Lafayette, IN, 47907, USA.
Andrew J McElroneDepartment of Plant Sciences, University of California, Davis, Davis, CA, 95616, USA.
Ian R WrightDepartment of Plant Sciences, University of California, Davis, Davis, CA, 95616, USA.
Mina MomayyeziDepartment of Plant Sciences, University of California, Davis, Davis, CA, 95616, USA.
Kyle R KnipperSustainable Agricultural Water Systems Unit, USDA-ARS, Davis, CA, 95616, USA.
Nicolas E BambachDepartment of Plant Sciences, University of California, Davis, Davis, CA, 95616, USA.
Sebastian Castro BustamanteDepartment of Plant Sciences, University of California, Davis, Davis, CA, 95616, USA.
Andrew J GalDepartment of Plant Sciences, University of California, Davis, Davis, CA, 95616, USA.
Sat Darshan S KhalsaDepartment of Plant Sciences, University of California, Davis, Davis, CA, 95616, USA.
Ranjith KarunakaranDepartment of Plant Sciences, University of California, Davis, Davis, CA, 95616, USA.
Hung T T NguyenDepartment of Earth Science and Environmental Change, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA.
Morgan E FurzeDepartment of Botany and Plant Pathology, Purdue University, 915 Mitch Daniels Blvd, West Lafayette, IN, 47907, USA. mfurze@purdue.edu.ORCID http://orcid.org/0000-0001-9690-6218

Funding

National Institute of Food and Agriculture 2021-67034-35230National Institute of Food and Agriculture 2021-67034-39050
6 · The paper itself

Abstract

MAIN

conclusionAlmond trees prioritize C to yield rather than stem growth, and their overall lower NSC stores compared to forest trees may have consequences for resilience under environmental variability. Perennial tree crops store nonstructural carbohydrates (NSCs) as energy reserves that can be used to persist during both predictable periods of reduced activity like dormancy and more unpredictable periods associated with stress. For deciduous tree crops, which lose their leaves at the start of dormancy, the NSC reserves accrued by that time are critically important for fueling respiration but may also influence processes in the following growing season. To quantify the seasonal NSC fluctuation surrounding dormancy and its influence on downstream processes like growth and yield, we conducted a comparative study of four almond varieties in a commercial orchard (California, USA). Sugar and starch concentrations were quantified in branch, stem, and coarse root when entering and exiting dormancy. We then assessed the correlation between these NSC data and metrics of stem growth and yield in the following growing season. We further explored long-term trade-offs between stem growth and yield using historical data from 2017 to 2022. Overall, total NSC concentrations significantly decreased during the dormant season in all organs. We observed a significant positive correlation between branch total NSC concentration when entering dormancy and yield the next year. However, we unexpectedly found that stem total NSC concentrations when entering dormancy were negatively correlated with stem growth the next year, suggesting that stem reserves were primarily used to support wintertime respiration or translocated to other organs. A long-term trade-off between stem growth and yield was evident; as yield increased, basal area increment tended to decrease. Additionally, we found whole-tree NSC storage to be lower in almond trees compared to temperate forest trees, reflecting prioritization to yield over NSC storage. Overall, these findings advance our understanding of crop tree carbon physiology and provide insight into the resilience of different almond cultivars under changing environmental conditions.

Indexed as

CarbonPrunus dulcisCarbohydrate MetabolismPlant LeavesPlant StemsSeasonsStarchTreesCarbonStarchDormancyNonstructural carbohydratesPerennial cropPrunus dulcis

Identifiers

PMID42047832
PMCPMC13124957

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.