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A few spots in northern Minnesota are also starting to show fall colors, but trees are generally green across the Upper Midwest, WeatherBug reports. ... with leaves changing color in early October ...
A CBS News map shows where leaf colors are changing and where to see peak fall foliage, updated regularly. ... These are the 6 most important stock market charts technical experts will be watching
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The phenomenon is commonly called autumn colours [2] or autumn foliage [3] in British English and fall colors, [4] fall foliage, or simply foliage [5] in American English. In some areas of Canada and the United States , " leaf peeping " tourism is a major contribution to economic activity.
In botany, the term phenology refers to the timing of flower emergence, sequence of bloom, fruiting, and leaf drop in autumn. The classification in major or minor nectar sources is very dependent on the agricultural use of the land. An agricultural crop such as canola or alfalfa may be a major or minor source depending on local plantings.
The leaf stalks are usually red and are up to 10 cm (4 in) long. The leaves can turn a characteristic brilliant red in autumn, but can also become yellow or orange on some individuals. Soil acidity can influence the color of the foliage and trees with female flowers are more likely to produce orange coloration while male trees produce red.
The Climate Prediction Center predicts a warmer-than-average fall for nearly the entire U.S., which can lower the intensity of autumn colors, but the Old Farmer's Almanac still predicts a great ...
The Leaf Color Chart (LCC) is a diagnostic tool used to determine the nitrogen level in rice plants relative to the shade of green of the plant's leaves. It is a ruler-shaped strip containing at least four panels of color, ranging from yellowish green to dark green.