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פותח על ידי קלירמאש פתרונות בע"מ -
Water uptake by seeds as affected by water stress, capillary conductivity and seed soil water contact I. Experimental Study
Year:
1974
Source of publication :
Agronomy Journal
Authors :
רוסו, דוד
;
.
Volume :
66
Co-Authors:

A. Hadas

D. Russo

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

Imbibition and seed germination as affected by water potentials, hydraulic conductivity, and seed-water contact area were studied. Water potential effects were studied under perfect seed contact and unlimited hydraulic con· ductivity. Effects on imbibition and germination of hy· draulic conductivity and seed-water contact were studied in an experimental setup in which separation between these factors was made possible while a very high water potential was maintained. The results show that low values of external water potential affect the rate of water uptake but not percent of germination. The rate of germination, however, is affected as long as water po· tential is higher than a critical value that is speciesspecific. For a given seed-water contact area, any de· crease in the hydraulic conductivity (or for a given con- ductivity, any reduction in contact area) reduced rates of water uptake and germination; total germination was not affected as long as the critical water potential was not reached.

Note:
Related Files :
germination
imbibition
Seed-water contact area
soil water potential
water stress
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
0
Affiliations:
Database:
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
55894
Last updated date:
02/03/2022 17:27
Creation date:
15/08/2021 12:31
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Scientific Publication
Water uptake by seeds as affected by water stress, capillary conductivity and seed soil water contact I. Experimental Study
66

A. Hadas

D. Russo

Water uptake by seeds as affected by water stress, capillary conductivity and seed soil water contact I. Experimental Study

Imbibition and seed germination as affected by water potentials, hydraulic conductivity, and seed-water contact area were studied. Water potential effects were studied under perfect seed contact and unlimited hydraulic con· ductivity. Effects on imbibition and germination of hy· draulic conductivity and seed-water contact were studied in an experimental setup in which separation between these factors was made possible while a very high water potential was maintained. The results show that low values of external water potential affect the rate of water uptake but not percent of germination. The rate of germination, however, is affected as long as water po· tential is higher than a critical value that is speciesspecific. For a given seed-water contact area, any de· crease in the hydraulic conductivity (or for a given con- ductivity, any reduction in contact area) reduced rates of water uptake and germination; total germination was not affected as long as the critical water potential was not reached.

Scientific Publication
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