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I scanned the trees and saw that a maple tree had "exploded". The explosion caused a big crack in the tree about three feet high. When a winter wind stirs the frozen trees, they sometimes appear to burst vertically. When it was 40 degrees below zero at night, I lay awake and listened to the trees explode. That's a true wilderness thermometer!
Frost crack or Southwest canker [1] is a form of tree bark damage sometimes found on thin barked trees, visible as vertical fractures on the southerly facing surfaces of tree trunks. Frost crack is distinct from sun scald and sun crack and physically differs from normal rough-bark characteristics as seen in mature oaks , pines , poplars and ...
Like all vascular plants, trees use two vascular tissues for transportation of water and nutrients: the xylem (also known as the wood) and the phloem (the innermost layer of the bark). Girdling results in the removal of the phloem , and death occurs from the inability of the leaves to transport sugars (primarily sucrose ) to the roots .
Full bloom on apples (their final bud stage) will have a 10% fruit loss at 28 degrees and a 90% fruit loss at 25 degrees. The sensitivity and the impact on the plant increase drastically.
Plant perception is the ability of plants to sense and respond to the environment by adjusting their morphology and physiology. [1] Botanical research has revealed that plants are capable of reacting to a broad range of stimuli, including chemicals, gravity, light, moisture, infections, temperature, oxygen and carbon dioxide concentrations, parasite infestation, disease, physical disruption ...
The bark of a tree will eventually rot if it is covered by bark mulch. Another fall task involves protecting young trees from damage by rodents. Gardening: Protect trees from damage by bark mulch ...
The dark horizontal lines on silver birch bark are the lenticels. [1]A lenticel is a porous tissue consisting of cells with large intercellular spaces in the periderm of the secondarily thickened organs and the bark of woody stems and roots of gymnosperms and dicotyledonous flowering plants. [2]
A few years prior the expansion in weather event tracking, the Superstorm of 1993 killed 15 people in East Tennessee from March 12-14. Two died from exposure while 13 others died from indirect causes.