The potential for an increasing threat of unseasonal temperature cycles to dormant plants.

Autor: Kovaleski AP; Department of Plant and Agroecosystem Sciences, University of Wisconsin-Madison, Madison, WI, 53706, USA.
Jazyk: angličtina
Zdroj: The New phytologist [New Phytol] 2024 Oct; Vol. 244 (2), pp. 377-383. Date of Electronic Publication: 2024 Aug 17.
DOI: 10.1111/nph.20052
Abstrakt: Two functional responses largely guide woody plants' survival to winter conditions: cold hardiness and dormancy. Dormancy affects budbreak timing based on chill accumulation. Effects of warming on dormancy may appear time-shifted: fall and winter warming events decrease chill accumulation, delaying budbreak observed in spring. The same warming events also affect cold hardiness dynamics, having immediate implications. As cold deacclimation rates increase with dormancy progression, the same amount of warming has greater damage risk the later it occurs in the season, depending on return of low temperatures. Should frequency of erratic weather increase with climate change, more instances of risk are expected. However, understanding how plants fare through seasons now and in future climates still requires better knowledge of winter physiology.
(© 2024 The Author(s). New Phytologist © 2024 New Phytologist Foundation.)
Databáze: MEDLINE
Externí odkaz: