נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Soil water movement to germinating seeds
Year:
1971
Source of publication :
Journal of Experimental Botany
Authors :
Dasberg, Shmuel
;
.
Volume :
22
Co-Authors:
Dasberg, S., Department of Soils and Water, The Volcani Institute of Agricultural Research, Rehovot, Israel
Facilitators :
From page:
999
To page:
1008
(
Total pages:
10
)
Abstract:
Water movement to germinating seeds of several range plants was measured with a gammaray attenuation technique. Seeds were placed at a depth of 1.5 cm in soil at several water contents and the soil water content of thin (3 mm) layers above and below the seeds was measured daily. It was found that the distance from which water was taken up by the seeds did not exceed 1 cm and was not affected by soil water content. Germination was found to be dependent on seed water uptake, which was determined by soil water content. The rate of seedling root growth was not affected by initial soil water content, but shoot growth was strongly affected.Solutions of the water flow equation were applied to the case of spheric geometry and infinite medium and to the case of linear flow and semi-infinite medium, in order to calculate water movement to a germinating seed or to a layer of seeds. Both the calculations and the measurements showed that water uptake by a 2-mm-diameter seed from distances exceeding 1 cm was negligible. © 1971 OXFORD UNIVERSITY PRESS.
Note:
Related Files :
Show More
Related Content
More details
DOI :
10.1093/jxb/22.4.999
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
30233
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:52
Scientific Publication
Soil water movement to germinating seeds
22
Dasberg, S., Department of Soils and Water, The Volcani Institute of Agricultural Research, Rehovot, Israel
Soil water movement to germinating seeds
Water movement to germinating seeds of several range plants was measured with a gammaray attenuation technique. Seeds were placed at a depth of 1.5 cm in soil at several water contents and the soil water content of thin (3 mm) layers above and below the seeds was measured daily. It was found that the distance from which water was taken up by the seeds did not exceed 1 cm and was not affected by soil water content. Germination was found to be dependent on seed water uptake, which was determined by soil water content. The rate of seedling root growth was not affected by initial soil water content, but shoot growth was strongly affected.Solutions of the water flow equation were applied to the case of spheric geometry and infinite medium and to the case of linear flow and semi-infinite medium, in order to calculate water movement to a germinating seed or to a layer of seeds. Both the calculations and the measurements showed that water uptake by a 2-mm-diameter seed from distances exceeding 1 cm was negligible. © 1971 OXFORD UNIVERSITY PRESS.
Scientific Publication
You may also be interested in