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Involvement of endogenous gibberellins in the chilling requirements of strawberry (Fragaria×ananassa Duch.)
Year:
1977
Source of publication :
Annals of Botany
Authors :
Avigdori-Avidov, Hadassah
;
.
Volume :
41
Co-Authors:
Avigdori-avidov, H., Division of Vegetable Crops, Agricultural Research Organization, Gilat Experimental Station, Negev, Israel
Goldschmidt, E.E., Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
Kedar, N., Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
Facilitators :
From page:
927
To page:
936
(
Total pages:
10
)
Abstract:
Plants of Fragaria ananassa Duch. cvs Tioga and Fresno were chilled in a cold store at-1°C for 2-8 months, after which they were transferred to short-day (SD) and long-day (LD)) growth chambers.Chilling promoted subsequent vegetative development, as expressed through leaf area, petiole length and stolon production, but inhibited the formation of inflorescences. Leaf area and petiole length responses appeared to be almost saturated by 2 months' chilling. The increase in stolon production and the reduction in inflorescence formation came into full expression with longer periods of chilling.Application of gibberellin A3 (GA3 to plants pre-chilied for 2 months had little effect on leaf area or petiole length but promoted stolon production and retarded the formation of inflorescences. AMO-1618 applied to plants pre-chilled for 4 months antagonized the chilling responses.The level of diffusible gibberellin-like substances from crown apices remained low during most of the chilling period but increased markedly after 6-8 months of chilling, when plants approached spontaneous sprouting in the cold store. Plants pre-chilled for 2 months had low levels of gibberellin-like substances which increased several fold upon transfer to the growth chambers. This increase was somewhat delayed in plants treated with AMO-1618.The role of gibberellins in the responses of strawberry plants to chilling is discussed. © 1977 Annals of Botany Company.
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DOI :
Article number:
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Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
29818
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:49
Scientific Publication
Involvement of endogenous gibberellins in the chilling requirements of strawberry (Fragaria×ananassa Duch.)
41
Avigdori-avidov, H., Division of Vegetable Crops, Agricultural Research Organization, Gilat Experimental Station, Negev, Israel
Goldschmidt, E.E., Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
Kedar, N., Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
Involvement of endogenous gibberellins in the chilling requirements of strawberry (Fragaria×ananassa Duch.)
Plants of Fragaria ananassa Duch. cvs Tioga and Fresno were chilled in a cold store at-1°C for 2-8 months, after which they were transferred to short-day (SD) and long-day (LD)) growth chambers.Chilling promoted subsequent vegetative development, as expressed through leaf area, petiole length and stolon production, but inhibited the formation of inflorescences. Leaf area and petiole length responses appeared to be almost saturated by 2 months' chilling. The increase in stolon production and the reduction in inflorescence formation came into full expression with longer periods of chilling.Application of gibberellin A3 (GA3 to plants pre-chilied for 2 months had little effect on leaf area or petiole length but promoted stolon production and retarded the formation of inflorescences. AMO-1618 applied to plants pre-chilled for 4 months antagonized the chilling responses.The level of diffusible gibberellin-like substances from crown apices remained low during most of the chilling period but increased markedly after 6-8 months of chilling, when plants approached spontaneous sprouting in the cold store. Plants pre-chilled for 2 months had low levels of gibberellin-like substances which increased several fold upon transfer to the growth chambers. This increase was somewhat delayed in plants treated with AMO-1618.The role of gibberellins in the responses of strawberry plants to chilling is discussed. © 1977 Annals of Botany Company.
Scientific Publication
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