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פותח על ידי קלירמאש פתרונות בע"מ -
Sequential photoperiodic requirement for flower initiation and development of leucospermum patersonii (Proteaceae)
Year:
1989
Source of publication :
Israel Journal of Botany
Authors :
ולרשטיין, ישראלה
;
.
Volume :
38
Co-Authors:
Wai.I.Rrstr1n, I., Department of Ornamental Horticulture, Agricultural Research Organization, The Volcani Center, P.O. Box 6, BetDagan, 50250, Israel
Facilitators :
From page:
25
To page:
34
(
Total pages:
10
)
Abstract:
Leucospermum patersonii was found to be an obligatory long-short day plant under a moderate temperature regime (22/17°C, day/night). The short-day (SD) requirement could be compensated by a low temperature (17/12°C) regime under long-day (LD) conditions. Long days had an inductive effect, whereas floral differentiation occurred under short days or a low temperature regime. The LD effect resembles that of the release from apical dominance following the production of a terminal bud. The morphological differentiation of the inflorescence was inhibited under LD and promoted under SD conditions. The effect of the low temperature regime or of short days on the initial stages of floral differentiation was similar; however, further inflorescence differentiation and development were faster under SD conditions and a moderate temperature regime. The correlative inhibition caused by the primary inflorescence under SD conditions could be overcome by treatment with cytokinin (benzyl adenine). All the inflorescences released from inhibition by cytokinin developed simultaneously, but aborted later during the growth season. In April, as natural days grew longer, the aborted inflorescences were replaced by vegetative axillary shoots. The nature of the LD effect and its disappearance under SD conditions are discussed. © 1989 Taylor & Francis Group, LLC.
Note:
Related Files :
flower
Leucospermum patersonii
Photoperiod
Proteaceae
temperature
עוד תגיות
תוכן קשור
More details
DOI :
10.1080/0021213X.1989.10677108
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
24656
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:09
Scientific Publication
Sequential photoperiodic requirement for flower initiation and development of leucospermum patersonii (Proteaceae)
38
Wai.I.Rrstr1n, I., Department of Ornamental Horticulture, Agricultural Research Organization, The Volcani Center, P.O. Box 6, BetDagan, 50250, Israel
Sequential photoperiodic requirement for flower initiation and development of leucospermum patersonii (Proteaceae)
Leucospermum patersonii was found to be an obligatory long-short day plant under a moderate temperature regime (22/17°C, day/night). The short-day (SD) requirement could be compensated by a low temperature (17/12°C) regime under long-day (LD) conditions. Long days had an inductive effect, whereas floral differentiation occurred under short days or a low temperature regime. The LD effect resembles that of the release from apical dominance following the production of a terminal bud. The morphological differentiation of the inflorescence was inhibited under LD and promoted under SD conditions. The effect of the low temperature regime or of short days on the initial stages of floral differentiation was similar; however, further inflorescence differentiation and development were faster under SD conditions and a moderate temperature regime. The correlative inhibition caused by the primary inflorescence under SD conditions could be overcome by treatment with cytokinin (benzyl adenine). All the inflorescences released from inhibition by cytokinin developed simultaneously, but aborted later during the growth season. In April, as natural days grew longer, the aborted inflorescences were replaced by vegetative axillary shoots. The nature of the LD effect and its disappearance under SD conditions are discussed. © 1989 Taylor & Francis Group, LLC.
Scientific Publication
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