Seed persistence and germination strategies of Carajasia cangae (Rubiaceae): an endemic forb from the Amazon ironstone outcrop DOI Creative Commons
Diego Fernando Escobar Escobar, Talita Zupo, Carolina da Silva Carvalho

et al.

Seed Science Research, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 8

Published: Feb. 19, 2025

Abstract Seed persistence, desiccation tolerance, and dormancy play a crucial role in plant population community dynamics. However, these life-history traits remain largely understudied perennial herbaceous species, particularly tropical ecosystems. We evaluated the seed storage behaviour, potential longevity, soil bank, alleviation field effects of after-ripening temperature time on Carajasia cangae – an endangered forb endemic to ironstone outcrops Eastern Amazon. performed germination experiments examine effect conditions (−20, 5 28°C, as well storage) viability, mean percentage. Our results suggested that C. seeds form transient bank show orthodox behaviour. The seeds' longevity was favoured all controlled relation soil-stored (field). marked loss viability less than 1 year, regardless condition, indicates low for long-term germplasm conservation through banking. fully alleviated after 3 months during dry season. Moreover, stored 6 at 28°C had their partially alleviated, indicating environmental found throughout season species habitat are required alleviate its dormancy. A type is by predictable seasonal variations climate region, iteroparity season, which delays until onset next rainy

Language: Английский

Seed persistence and germination strategies of Carajasia cangae (Rubiaceae): an endemic forb from the Amazon ironstone outcrop DOI Creative Commons
Diego Fernando Escobar Escobar, Talita Zupo, Carolina da Silva Carvalho

et al.

Seed Science Research, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 8

Published: Feb. 19, 2025

Abstract Seed persistence, desiccation tolerance, and dormancy play a crucial role in plant population community dynamics. However, these life-history traits remain largely understudied perennial herbaceous species, particularly tropical ecosystems. We evaluated the seed storage behaviour, potential longevity, soil bank, alleviation field effects of after-ripening temperature time on Carajasia cangae – an endangered forb endemic to ironstone outcrops Eastern Amazon. performed germination experiments examine effect conditions (−20, 5 28°C, as well storage) viability, mean percentage. Our results suggested that C. seeds form transient bank show orthodox behaviour. The seeds' longevity was favoured all controlled relation soil-stored (field). marked loss viability less than 1 year, regardless condition, indicates low for long-term germplasm conservation through banking. fully alleviated after 3 months during dry season. Moreover, stored 6 at 28°C had their partially alleviated, indicating environmental found throughout season species habitat are required alleviate its dormancy. A type is by predictable seasonal variations climate region, iteroparity season, which delays until onset next rainy

Language: Английский

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