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פותח על ידי קלירמאש פתרונות בע"מ -
Root development of bell pepper (Capsicum annuum L.) as affected by water salinity and sink strength
Year:
2020
Source of publication :
צמחים
Authors :
אראל, רן
;
.
לה, טוק
;
.
Volume :
9
Co-Authors:

Eshel, A., School of Plant Sciences and Food Security, Tel Aviv University, Tel Aviv, 6997801, Israel; Cohen, S., Yair Station, Central and Northern Arava R&D Center, Hazeva8681500, Israel; Offenbach, R., Yair Station, Central and Northern Arava R&D Center, Hazeva8681500, Israel; Strijker, T., Yair Station, Central and Northern Arava R&D Center, Hazeva8681500, Israel; Shtein, I., Department of Oenology and Agriculture, Eastern R&D Center, Ariel, 40700, Israel

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

Fruits are the dominant sinks for assimilates. At optimal conditions, assimilates supply can meet the demand of fruits and those of the vegetative organs; however, extreme circumstances such as strong sink strength or an environmental stress may disturb this fine balance. While most studies focus on aboveground parameters, information regarding root growth dynamics under variable sink strength are scarce. The objective of this study was to evaluate the effect of sink strength (represented by fruit load) and salinity on bell-pepper root development. Three levels of fruit load were combined with two salinity levels in plants grown in an aeroponic system. Root growth was determined both by root capacitance and destructive measurements. Salinity and sink strength significantly affected root, shoot and fruit growth dynamics. Root growth was less affected by fruit load. Salinity stress was negatively associated with shoot growth, but after an acclimation period, salinity enhanced root development. Additionally, this study shows for the first time that root capacitance is a valid approach for non-destructive measurement of root development in aeroponic systems. The good correlation measured by us (r2 0.86) opens new opportunities for continuous root growth monitoring in aeroponic systems in the future. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.

Note:
Related Files :
abiotic stress
Fruit load
Root capacitance
root to shoot ratio
עוד תגיות
תוכן קשור
More details
DOI :
10.3390/plants9010035
Article number:
35
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
45813
Last updated date:
02/03/2022 17:27
Creation date:
21/01/2020 10:36
Scientific Publication
Root development of bell pepper (Capsicum annuum L.) as affected by water salinity and sink strength
9

Eshel, A., School of Plant Sciences and Food Security, Tel Aviv University, Tel Aviv, 6997801, Israel; Cohen, S., Yair Station, Central and Northern Arava R&D Center, Hazeva8681500, Israel; Offenbach, R., Yair Station, Central and Northern Arava R&D Center, Hazeva8681500, Israel; Strijker, T., Yair Station, Central and Northern Arava R&D Center, Hazeva8681500, Israel; Shtein, I., Department of Oenology and Agriculture, Eastern R&D Center, Ariel, 40700, Israel

Root development of bell pepper (Capsicum annuum L.) as affected by water salinity and sink strength

Fruits are the dominant sinks for assimilates. At optimal conditions, assimilates supply can meet the demand of fruits and those of the vegetative organs; however, extreme circumstances such as strong sink strength or an environmental stress may disturb this fine balance. While most studies focus on aboveground parameters, information regarding root growth dynamics under variable sink strength are scarce. The objective of this study was to evaluate the effect of sink strength (represented by fruit load) and salinity on bell-pepper root development. Three levels of fruit load were combined with two salinity levels in plants grown in an aeroponic system. Root growth was determined both by root capacitance and destructive measurements. Salinity and sink strength significantly affected root, shoot and fruit growth dynamics. Root growth was less affected by fruit load. Salinity stress was negatively associated with shoot growth, but after an acclimation period, salinity enhanced root development. Additionally, this study shows for the first time that root capacitance is a valid approach for non-destructive measurement of root development in aeroponic systems. The good correlation measured by us (r2 0.86) opens new opportunities for continuous root growth monitoring in aeroponic systems in the future. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.

Scientific Publication
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