Effect of thermal pretreatment on germination of seeds from different provenances of subalpine oriental spruce (<i>Picea orientalis</i> (L.) Link.) forest in Turkey

Üçler, Ali Ömer; Acar, Cengiz; Yücesan, Zafer; Oktan, Ercan

doi:10.1080/10549811.2017.1406806

Cited by 1 publication

(1 citation statement)

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“…Many researchers, have discussed germination techniques for different species to seed dormancy by applying different pretreatments, which could improve the germination rate and accelerate the germination process (Airi et al, 2009;Alouani & Bani-Aameur, 2014;Azad et al, 2013;Dardour et al, 2014;Üçler et al, 2017). However, physical seed dormancy is a serious problem in seed germination (Schmidt, 2000).…”

Section: Discussionmentioning

confidence: 99%

Argan (Argania spinosa (L.) Skeels) Bazı Termal Şok Ön İşlemleri Altında Tohum Çimlenmesi

ALI

HACHEMI

Moumni

et al. 2022

Kastamonu Üniversitesi Orman Fakültesi Dergisi

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Aim of study:The objective of this study was to optimize the germination of A. spinosa seeds after different physical pretreatments by thermal shock to establish a simple, effective, and less expensive procedure.Area of study: The study was conducted in the laboratory on seeds from four regions of Morocco (Aoulouz, Essaouira, Sidi Bou Othmane, and Boulaouane).Material and methods: The seeds were dried and stored. Before the launching of the experimental protocol, they were dehulled and applied each their pre-treatment for the four provenances. The pretreatment used are the following. C: control without thermal shock, HC1: freezing, HC2: hot water, HC3: freezing + hot water.Main results: The results showed that the onset of germination of argan seeds subjected to pretreatment HC3 was reduced by 2 days on mean compared to seeds that were subjected to pretreatment (C). The application of the cold or hot pretreatment allowed us to reach up to 82% of the final percentage of germination. However, the combination of two pretreatments allowed us to reach up to 100% of the final germination percentage.Highlights: Freezing combined with hot water significantly improved the germination of A. spinosa seeds. This pretreatment could be recommended in the nursery for practitioners.

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Section: Discussionmentioning

confidence: 99%