Abies nebrodensis is a strict Sicilian endemic species, listed as “Critically Endangered” in the IUCN Red List of Threatened Species. Seed production highly varies annually and among specimens. The species is affected by a very low seed germination rate, mainly depending on the large number of empty seeds (from 68 to 96%). The embryo presence in seeds increases with increasing seed size and weight. Optimal germination rate (61%) was achieved at constant 5°C in the darkness. The low proportion of embryos in seeds is a relevant threat for A. nebrodensis conservation, as it affects the intrapopulation genetic diversity and reduces the potential genetic variability of seed accessions preserved in a gene bank collection.

Scialabba A. (2019). Seed germination in Abies nebrodensis (Pinaceae). FLORA MEDITERRANEA, 29, 272-276 [10.7320/FlMedit29.272].

Seed germination in Abies nebrodensis (Pinaceae)

Scialabba A.
2019-01-01

Abstract

Abies nebrodensis is a strict Sicilian endemic species, listed as “Critically Endangered” in the IUCN Red List of Threatened Species. Seed production highly varies annually and among specimens. The species is affected by a very low seed germination rate, mainly depending on the large number of empty seeds (from 68 to 96%). The embryo presence in seeds increases with increasing seed size and weight. Optimal germination rate (61%) was achieved at constant 5°C in the darkness. The low proportion of embryos in seeds is a relevant threat for A. nebrodensis conservation, as it affects the intrapopulation genetic diversity and reduces the potential genetic variability of seed accessions preserved in a gene bank collection.
Settore BIO/01 - Botanica Generale
Scialabba A. (2019). Seed germination in Abies nebrodensis (Pinaceae). FLORA MEDITERRANEA, 29, 272-276 [10.7320/FlMedit29.272].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/415195
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