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A cold front rolled through, leaving Arkansas feeling crisp and dry. It’s chilly, sure, but nothing too wild—just throw on a jacket and go about your day. Mid-December (Dec 15–20):
Plant senescence is the process of aging in plants. Plants have both stress-induced and age-related developmental aging. [1] Chlorophyll degradation during leaf senescence reveals the carotenoids, such as anthocyanin and xanthophylls, which are the cause of autumn leaf color in deciduous trees. Leaf senescence has the important function of ...
Malus sylvestris - Common Apple (Arkansas State Flower is the Apple Blossom) Acer negundo - Box Elder; Acer species - Maples; Cornus florida - Flowering Dogwood; Juniperus virginiana - Eastern Redcedar; Rhus glabra - Smooth Sumac; Other Rhus species also common; Diospyros virginiana - American Persimmon; Prunus serotina - Black Cherry; Prunus ...
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.
Many cold-hardy spring bulbs (tulips, daffodils, crocus, hyacinth, etc.) can be planted in pots to bloom indoors in late winter. Bulbs need time in the cold before they bloom; you can buy pre ...
An unrelenting series of winter storms and an outbreak of cold air have killed multiple people across several states since Friday. Now, another round of extreme cold and snow will march across the ...
Winter rest (from the German term Winterruhe) is a state of reduced activity of plants and warm-blooded animals living in extratropical regions of the world during the more hostile environmental conditions of winter. In this state, they save energy during cold weather while they have limited access to food sources.
The weeklong Arctic cold that's blanketed much of the nation has taken more than 50 lives, officials said, as 95 million people in the United States are under winter weather warnings Friday.