Temperature is one of the most important abiotic factors affecting seed germination, and it is strongly influenced by local site conditions. Seeds of Nothofagus glauca, an endemic and vulnerable species of the Mediterranean region of Chile and the most representative of the Mediterranean forests of South America, were collected. In this study, we evaluated the effect of temperature on different germinative attributes of five N. glauca provenances representative of their natural distribution. The seeds were treated at a constant temperature (i.e., 18 °C, 22 °C, 26 °C, or 30 °C) in the absence of light for 40 days. The results show that in all the provenances, the germination ratio and energy increase linearly with temperature until reaching an optimum temperature (i.e., 22 °C), above which they decrease severely. At 22 °C, the response of average germination speed and germination vigor was significantly higher than with the other temperatures (performance of germination start day was not clear). The base temperature was around 18 °C and the maximum, above 30 °C, which may be close to thermo-inhibition. Given the threat of climate change, it is necessary to increase research in terms of the possible adaptation of this species to increased temperatures and prolonged periods of drought
El crecimiento del sector forestal se ha basado en el cultivo de dos especies (pino radiata y eucalipto) establecidas como monocultivo. Existe cada vez mayor conciencia sobre la necesidad de diversificar la actividad forestal, tanto en cantidad de especies como en los modelos productivos. En este marco resulta interesante la utilización de especies madereras de alto valor en plantaciones forestales, así como la aplicación e implementación de técnicas que permitan mejorar el crecimiento y la calidad de la madera. Este artículo presenta resultados de una plantación de liquidámbar (Liquidambar styraciflua), de 3 años, establecida con distintos tipos de protecciones individuales. Liquidambar es una de las especies de alto valor considerada en el proyecto “Silvicultura de especies no tradicionales, una mayor diversidad productiva”, financiado por el FIA y ejecutado por INFOR, donde se analizó el efecto de distintos tipos de protecciones sobre el crecimiento inicial de la especie. Las protecciones probadas corresponden al tradicional (Tubex) y a dos protectores artesanales, construidos con material de desecho para reducir costos.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.