Germination, seed traits, and seedling vigor of Pilosocereus robinii (Cactaceae) from northwestern Cuba
DOI :
https://doi.org/10.17348/jbrit.v18.i2.1372Mots-clés :
photoblastic response, orthodox behavior, temperatures, climatic changeRésumé
Studies on the germination of Caribbean cacti are essential for conservation and ecological restoration programs. We evaluated the seed traits and germination response of Pilosocereus robinii under five temperatures and two light conditions and compared the vigor of the seedlings obtained. Seminal traits showed characteristics of orthodox seeds. Pilosocereus robinii seeds showed positive photoblastism and a range of optimal temperatures below 30°C. In all treatments where germination was suboptimal, the seeds demonstrated high recovery percentages when they were exposed to the optimal temperature. The vigor of the seedlings showed a behavior similar to germination. Our study shows that restoration plans for the species' populations are viable from seeds.
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