ArticleAnnals of botany2025
Primary and secondary growth of Pinus halepensis are more sensitive to inter-annual drought variability than to 14 years of rainfall exclusion in a Mediterranean forest.
Article in Annals of botany, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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.
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.
Who cites it
1 citing paper in PubMed.
- A BpbZIP4 transcription factor enhances drought resistance and root development inHorticulture research · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsWith ongoing climate change, the impact of droughts of increasing intensity on forest functioning is of critical concern. While the adverse effects of drought on tree secondary growth have been largely documented both at the tree and stand scales, our understanding of how primary growth morphological traits, which control crown development, respond to drought remains limited, especially in the long term.
methodsBased on 14 years of monitoring of four primary growth morphological traits (e.g. shoot elongation, polycyclism rate, branching and needle length) and stem secondary growth in a rainfall exclusion experiment, we investigated (1) the climatic drivers of above-ground growth and (2) the effect of long-term exacerbated drought conditions on the growth response to drought in a mature Pinus halepensis stand. KEY
resultsAbove-ground growth was strongly and negatively impacted by drought duration during the current year (stem secondary growth), the previous year (polycyclism) and both years (branching, shoot length), and by drought during spring (needle length). While excluding 30 % of the incoming rainfall did not significantly affect the number of ramifications, polycyclism rate or stem secondary growth, it reduced needle and shoot lengths by 14.3 and 7.7 % over the entire study period, respectively. However, this effect was significant only in the first years after the treatment was established. Such acclimation to exacerbated drought conditions is also reported in the drought-growth relationships which are similar among treatments, except for needles that were slightly shorter under a similar level of drought stress in the exclusion.
conclusionsOur study highlights the key acclimation capacity in the primary and secondary growth response of P. halepensis to drought. In addition to tree structural adjustments, the relatively limited effect of the 30 % rainfall exclusion may also be caused by (1) the substantial inter-annual rainfall variability typical of Mediterranean climates, which modulates the exclusion effect on drought duration, and (2) the inherent inter-individual variability in drought sensitivity.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.