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Cold hardening is a process in which a plant undergoes physiological changes to avoid, or mitigate cellular injuries caused by sub-zero temperatures. [1] Non-acclimatized individuals can survive −5 °C, while an acclimatized individual in the same species can survive −30 °C.
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Salvia frigida is a herbaceous perennial in the family Lamiaceae. [1] It is native to northern Iraq, northwestern Iran, and eastern Turkey growing at 900 to 2,500 m (3,000 to 8,200 ft) elevation. It is often found growing in Anatolia, on woodland edges, meadows, limestone slopes, and crevices.
Since freezing belongs to dehydration stresses, cold acclimation process is associated with an enhanced accumulation of osmolytes (sugars, proline, polyamines, and hydrophilic proteins). [3] The loss of frost resistance occurs after warming. Rapid temperature fluctuations during winter deharden trees and increase the risk of spring damage. [5]
Some cryoprotective agents used in research are inspired by plants and animals in nature that have unique cold tolerance to survive harsh winters, including: trees, [3] [4] wood frogs, [5] and tardigrades. [6] The first human corpse to be frozen with the hope of future resurrection was James Bedford's, a few hours after his cancer-caused death ...
Additionally, wind chill can make a significant difference in staying safe out in the cold. “If [it’s] below -15 degrees Fahrenheit, it’s a good day to play inside.
Salvia (/ ˈ s æ l v i ə /) [3] is the largest genus of plants in the sage family Lamiaceae, with just under 1,000 species of shrubs, herbaceous perennials, and annuals. [4] [5] [6] Within the Lamiaceae, Salvia is part of the tribe Mentheae within the subfamily Nepetoideae. [4]
While the weather is warm and your green thumb may be aching, don't start your work on the garden just yet in 2024. Here's when you can start.