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Yield, transpiration and growth of tomatoes under combined excess boron and salinity stress
Year:
2002
Source of publication :
Plant and Soil
Authors :
Ben-Gal, Alon
;
.
Volume :
247
Co-Authors:
Ben-Gal, A., Hebrew University of Jerusalem, Dept. of Soil and Water Sciences, Fac. Agric., Food and Environ. Sci., Israel, Arava Research and Development, 'Arava' Experimental Station, Mobile Post Eilot, 88820, Israel
Shani, U., Dept. of Soil and Water Sciences, Fac. Agric., Food and Environ. Sci., Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Facilitators :
From page:
211
To page:
221
(
Total pages:
11
)
Abstract:
Boron is essential to growth at low concentrations and limits growth and yield when in excess. Little is known regarding plant response to excess boron (B) and salinity occurring simultaneously. The influences of B and salinity on tomatoes (Lycopersicon esculentum Mill. Cv '5656') were investigated in lysimeters. Salinity levels were 1, 3, 6 and 9 dSm -1 and B levels were 0.028, 0.185, 0.37, 0.74, 1.11, 1.48 mol m -3. Excess boron was found to decrease yield and transpiration of tomatoes. This effect was inhibited when plants were exposed to simultaneous B and salinity stresses. Both irrigation water salinity and boron concentration influenced water use of the plants in the same manner as they influenced yield. While yield was found to decrease with increased boron concentration in leaf tissue, increased salinity led to decreased boron accumulation. Yield response was found to correlate better to B concentration in irrigation water and soil solution than to plant tissue B content. A dominant-stress-factor model was assumed and validated. The model applies the principle that when a plant is submitted to conditions of stress caused by B in conjunction with salinity, the more severe stress determines yield. The results of this study have significance in modeling and management of high salinity high boron conditions. Under saline conditions, differences in crop yield and in water use may not be experienced over a significant range of boron concentrations.
Note:
Related Files :
Boron
Combined stress
crop yield
Lycopersicon
Lycopersicon esculentum
salinity
Toxicity
transpiration
Show More
Related Content
More details
DOI :
10.1023/A:1021556808595
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
29049
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:43
Scientific Publication
Yield, transpiration and growth of tomatoes under combined excess boron and salinity stress
247
Ben-Gal, A., Hebrew University of Jerusalem, Dept. of Soil and Water Sciences, Fac. Agric., Food and Environ. Sci., Israel, Arava Research and Development, 'Arava' Experimental Station, Mobile Post Eilot, 88820, Israel
Shani, U., Dept. of Soil and Water Sciences, Fac. Agric., Food and Environ. Sci., Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Yield, transpiration and growth of tomatoes under combined excess boron and salinity stress
Boron is essential to growth at low concentrations and limits growth and yield when in excess. Little is known regarding plant response to excess boron (B) and salinity occurring simultaneously. The influences of B and salinity on tomatoes (Lycopersicon esculentum Mill. Cv '5656') were investigated in lysimeters. Salinity levels were 1, 3, 6 and 9 dSm -1 and B levels were 0.028, 0.185, 0.37, 0.74, 1.11, 1.48 mol m -3. Excess boron was found to decrease yield and transpiration of tomatoes. This effect was inhibited when plants were exposed to simultaneous B and salinity stresses. Both irrigation water salinity and boron concentration influenced water use of the plants in the same manner as they influenced yield. While yield was found to decrease with increased boron concentration in leaf tissue, increased salinity led to decreased boron accumulation. Yield response was found to correlate better to B concentration in irrigation water and soil solution than to plant tissue B content. A dominant-stress-factor model was assumed and validated. The model applies the principle that when a plant is submitted to conditions of stress caused by B in conjunction with salinity, the more severe stress determines yield. The results of this study have significance in modeling and management of high salinity high boron conditions. Under saline conditions, differences in crop yield and in water use may not be experienced over a significant range of boron concentrations.
Scientific Publication
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