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פותח על ידי קלירמאש פתרונות בע"מ -
Growth Regulators and the Phytochrome‐Mediated Dormancy of Celery Seeds
Year:
1975
Source of publication :
Physiologia Plantarum
Authors :
פלביץ', דן
;
.
Volume :
35
Co-Authors:
THOMAS, T.H., National Vegetable Research Station, Wellesbourne, Warwick, CV35 9EF, United Kingdom
PALEVITCH, D., National Vegetable Research Station, Wellesbourne, Warwick, CV35 9EF, United Kingdom
BIDDINGTON, N.L., National Vegetable Research Station, Wellesbourne, Warwick, CV35 9EF, United Kingdom
AUSTIN, R.B., National Vegetable Research Station, Wellesbourne, Warwick, CV35 9EF, United Kingdom
Facilitators :
From page:
101
To page:
106
(
Total pages:
6
)
Abstract:
Seeds of five celery (Apium graveolens L.) cultivars germinated at 15°C in the light or dark but at 22°C only in the light. This light requirement was overcome by treatment with a mixture of the gibberellins GA4 and GA7 (GA4/7) but interactions of cytokinins, daminozide, ethephon, EDTA and N‐phenyl‐N′‐4‐pyridylurea (NC5392) with GA4/7 were observed. Varietal differences in response to GA4/7 concentration and the requirement for cytokinins were related to the upper temperature limits for germination of the different cultivars. Seeds of cultivars responding to low concentrations of GA4/7 appeared to contain less natural inhibitor than those requiring either high concentrations of GA4/7 or cytokinin in addition to low GA4/7. The cytokinin requirement for germination was partially removed by leaching the seeds with water. Interaction studies with applied hormones indicated that in seeds incubated in the light inhibition by abscisic acid was partially alleviated by N6‐benzyladenine but not by GA4/7 application. The implications of these results are discussed in relation to the involvement of natural plant hormones in the dormancy mechanism of celery seeds. Copyright © 1975, Wiley Blackwell. All rights reserved
Note:
Related Files :
עוד תגיות
תוכן קשור
More details
DOI :
10.1111/j.1399-3054.1975.tb03876.x
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
26911
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:26
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Scientific Publication
Growth Regulators and the Phytochrome‐Mediated Dormancy of Celery Seeds
35
THOMAS, T.H., National Vegetable Research Station, Wellesbourne, Warwick, CV35 9EF, United Kingdom
PALEVITCH, D., National Vegetable Research Station, Wellesbourne, Warwick, CV35 9EF, United Kingdom
BIDDINGTON, N.L., National Vegetable Research Station, Wellesbourne, Warwick, CV35 9EF, United Kingdom
AUSTIN, R.B., National Vegetable Research Station, Wellesbourne, Warwick, CV35 9EF, United Kingdom
Growth Regulators and the Phytochrome‐Mediated Dormancy of Celery Seeds
Seeds of five celery (Apium graveolens L.) cultivars germinated at 15°C in the light or dark but at 22°C only in the light. This light requirement was overcome by treatment with a mixture of the gibberellins GA4 and GA7 (GA4/7) but interactions of cytokinins, daminozide, ethephon, EDTA and N‐phenyl‐N′‐4‐pyridylurea (NC5392) with GA4/7 were observed. Varietal differences in response to GA4/7 concentration and the requirement for cytokinins were related to the upper temperature limits for germination of the different cultivars. Seeds of cultivars responding to low concentrations of GA4/7 appeared to contain less natural inhibitor than those requiring either high concentrations of GA4/7 or cytokinin in addition to low GA4/7. The cytokinin requirement for germination was partially removed by leaching the seeds with water. Interaction studies with applied hormones indicated that in seeds incubated in the light inhibition by abscisic acid was partially alleviated by N6‐benzyladenine but not by GA4/7 application. The implications of these results are discussed in relation to the involvement of natural plant hormones in the dormancy mechanism of celery seeds. Copyright © 1975, Wiley Blackwell. All rights reserved
Scientific Publication
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