NDLI: Dormancy of alpine and subalpine perennial forbs

Content Provider	Springer Nature Link
Author	Yoshie, Fumio
Copyright Year	2007
Abstract	Depth of dormancy of alpine and subalpine perennial forbs in autumn was investigated, which was judged by the number of days required for growth initiation at 24 °C. The depth of dormancy differed depending on Raunkiaer’s life-form and shoot habits. Chamaephytes with perennial shoot-axes showed shallower dormancy than hemicryptophytes with annual shoot-axes, and geophytes with annual shoot-axes showed the deepest dormancy. The results strongly suggest that the dormancy is more endogenously controlled in forbs less hardy to freezing stress. Potential growth ability of alpine herbaceous chamaephytes in autumn is an adaptive advantage, since they utilize the short vegetative period as long as possible. All of the species with annual shoot-axes had winter buds covered with scales. In plants with perennial shoot-axes, percentage of winter buds covered with scales increased with increasing depth of dormancy. The results indicate that the shoot apices are well protected by bud scales in forbs with a long endogeneous-dormant period.
Starting Page	35
Ending Page	40
Page Count	6
File Format	PDF
ISSN	09123814
Journal	Ecological Research
Volume Number	23
Issue Number	1
e-ISSN	14401703
Language	English
Publisher	Springer Japan
Publisher Date	2007-02-08
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Alpine plants Bud scale Frost hardiness Raunkiaer’s life-form Shoot habit Forestry Behavioural Sciences Evolutionary Biology Zoology Plant Sciences Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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