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פותח על ידי קלירמאש פתרונות בע"מ -
Water availability to rose roots grown in soilless media, as a determinant factor of productivity
Year:
2007
Source of publication :
Acta Horticulturae
Authors :
רביב, מיכאל
;
.
Volume :
751
Co-Authors:
Raviv, M., Dept. of Ornamental Horticulture, Agricultural Research Organization, Neweya'Ar Research Center, P.O. Box 1021, Ramat Yishay 30095, Israel
Wallach, R., Seagram Center for Soil and Water Sciences, Faculty of Agricultural, Hebrew University of Jerusalem, P.O. Box 12, Rehovot, Israel
Facilitators :
From page:
23
To page:
32
(
Total pages:
10
)
Abstract:
Low matric potential in porous media is usually accompanied by very low unsaturated hydraulic conductivity (K). This characteristic is the main rate-limiting factor to water uptake by plant roots. Restricted water availability reduces leaf water potential, which, in turn, causes cessation of leaf and shoot expansive growth. Reduced leaf area leads to lower plant productivity. Net assimilation and transpiration rates are also negatively affected by low K, although less dramatically. Water status of the root zone can be manipulated at two stages. Firstly, it is affected by the choice of the medium, in respect to the crop needs, available management practices and climatic conditions, and secondly by the chosen strategy of irrigation control. Maintaining K at a level that is compatible with atmospheric water demand requires, in addition to adequate climatic sensors, real-time measurement of the water status in the medium. Based on our experience this is best achieved by weighing lysimeters and online calculation of water uptake rate while tensiometers, TDR and FD sensors may all yield erroneous results.
Note:
Related Files :
Leaf water potential
matric potential
Net assimilation rate
Osmotic potential
Rosa hybrid cultivar
Rosa x hybrida
water use efficiency
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר מתוך כינוס
;
.
Language:
אנגלית
Editors' remarks:
ID:
24305
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:06
You may also be interested in
Scientific Publication
Water availability to rose roots grown in soilless media, as a determinant factor of productivity
751
Raviv, M., Dept. of Ornamental Horticulture, Agricultural Research Organization, Neweya'Ar Research Center, P.O. Box 1021, Ramat Yishay 30095, Israel
Wallach, R., Seagram Center for Soil and Water Sciences, Faculty of Agricultural, Hebrew University of Jerusalem, P.O. Box 12, Rehovot, Israel
Water availability to rose roots grown in soilless media, as a determinant factor of productivity
Low matric potential in porous media is usually accompanied by very low unsaturated hydraulic conductivity (K). This characteristic is the main rate-limiting factor to water uptake by plant roots. Restricted water availability reduces leaf water potential, which, in turn, causes cessation of leaf and shoot expansive growth. Reduced leaf area leads to lower plant productivity. Net assimilation and transpiration rates are also negatively affected by low K, although less dramatically. Water status of the root zone can be manipulated at two stages. Firstly, it is affected by the choice of the medium, in respect to the crop needs, available management practices and climatic conditions, and secondly by the chosen strategy of irrigation control. Maintaining K at a level that is compatible with atmospheric water demand requires, in addition to adequate climatic sensors, real-time measurement of the water status in the medium. Based on our experience this is best achieved by weighing lysimeters and online calculation of water uptake rate while tensiometers, TDR and FD sensors may all yield erroneous results.
Scientific Publication
You may also be interested in