NDLI: Longevity of Juniperus procera seed lots under different storage conditions: implications for ex situ conservation in seed banks

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Longevity of Juniperus procera seed lots under different storage conditions: implications for ex situ conservation in seed banks

Content Provider	Springer Nature Link
Author	Mamo, Negash Nigusie, Diriba Tigabu, Mulualem Teketay, Demel Fekadu, Miftah
Copyright Year	2011
Abstract	Juniperus procera Endl. is economically important timber species, but its populations are extremely small and fragmented in its natural habitat, thus, calling for immediate ex situ conservation. Here we examined the effects of seed sources and storage temperature on the longevity of Juniperus procera seed lots through collection and preservation of seeds in seed banks. Seeds were collected from nine sites across the species natural distribution in Ethiopia and stored in four warehouses: modern cold room (5°C), mud house (15°C), concrete block house (17°C) or corrugated iron house (20°C) for 42 months. Every three months, a random sample of stored seeds were drawn and tested for germination. A highly significant variation (p < 0.01) in germination of stored seeds was observed among different storage environments, seed lots, and duration of storage. Over the storage period, seeds stored in the cold room had the highest mean percentage germination, followed by the mud house, corrugated house and blocket house. The cold room (41%) and the mud house (38%) maintained the same level of germination as the intitial germination of the seedlotds (42%). The variation in longevity of stored seeds was significnatly correlated with the initial germination of seed lots (r > 0.80; p < 0.01). Cold storage also resulted in enhancement of germination through its stratification effect that terminated the non-deep physiological dormancy of juniper seeds. In conclusion, seed lots with good initial germination can be effectively stored in cold room (5°C) up to four years. In the absence of modern cold stores, mud houses can be used as a good alternative to store seeds at local level.
Starting Page	453
Ending Page	459
Page Count	7
File Format	PDF
ISSN	1007662X
Journal	Journal of Forestry Research
Volume Number	22
Issue Number	3
e-ISSN	19930607
Language	English
Publisher	Northeast Forestry University
Publisher Date	2011-08-04
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	germination African pencil cedar Ethiopia seed zones seed storage Forestry
Content Type	Text
Resource Type	Article
Subject	Forestry

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