נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Winding up the bloom clock—do sugar levels at senescence determine how trees respond to winter temperature?
Year:
2021
Source of publication :
tree physiology (source)
Authors :
Sperling, Or
;
.
Volume :
Co-Authors:

Or Sperling

Maciej A Zwieniecki                           
Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

Variable winter temperatures cause a year-to-year discrepancy in the phenology of deciduous trees. It implies that an intrinsic 'winter clock' synchronizes bloom with the progression of winter to spring. The carbohydrate-temperature (C-T) model established a mechanistic association between carbohydrate metabolism in dormant trees and hourly winter temperatures. Using historical winter temperature and bloom times of Prunus dulcis (almond), Malus domestica (apple), Pistachia vera (pistachio), and Juglans regia (walnut) in California and Washington states, we parametrized species-specific metabolic parameters to the C-T model. There was a sound fit between actual and projected bloom dates with a deviation (RMSE) of 4–7 days in all species. The parameterized model enabled us to study how the observed variability in soluble carbohydrate concentrations at senescence (SC0) could affect bloom time. The C-T model projected that low SC0 could advance, and high SC0 possibly delay the bloom of the early-blooming almond trees. In contrast, high SC0 would advance the bloom of apple, pistachio, and walnut trees. These novel projections suggest that, after experimental validation, SC0 could guide post-harvest farming applications that affect fall carbohydrate accumulation to mediate climate shifts' effects.

Note:
Related Files :
blooming
Juglans regia
Malus domestica (apple)
Pistachia vera (pistachio)
Prunus dulcis (almond)
walnut
Winter temperature
Show More
Related Content
More details
DOI :
10.1093/treephys/tpab051
Article number:
0
Affiliations:
Database:
Google Scholar
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
54932
Last updated date:
02/03/2022 17:27
Creation date:
10/05/2021 12:40
Scientific Publication
Winding up the bloom clock—do sugar levels at senescence determine how trees respond to winter temperature?

Or Sperling

Maciej A Zwieniecki                           
Winding up the bloom clock—do sugar levels at senescence determine how trees respond to winter temperature?

Variable winter temperatures cause a year-to-year discrepancy in the phenology of deciduous trees. It implies that an intrinsic 'winter clock' synchronizes bloom with the progression of winter to spring. The carbohydrate-temperature (C-T) model established a mechanistic association between carbohydrate metabolism in dormant trees and hourly winter temperatures. Using historical winter temperature and bloom times of Prunus dulcis (almond), Malus domestica (apple), Pistachia vera (pistachio), and Juglans regia (walnut) in California and Washington states, we parametrized species-specific metabolic parameters to the C-T model. There was a sound fit between actual and projected bloom dates with a deviation (RMSE) of 4–7 days in all species. The parameterized model enabled us to study how the observed variability in soluble carbohydrate concentrations at senescence (SC0) could affect bloom time. The C-T model projected that low SC0 could advance, and high SC0 possibly delay the bloom of the early-blooming almond trees. In contrast, high SC0 would advance the bloom of apple, pistachio, and walnut trees. These novel projections suggest that, after experimental validation, SC0 could guide post-harvest farming applications that affect fall carbohydrate accumulation to mediate climate shifts' effects.

Scientific Publication
You may also be interested in