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The USDA released a new hardiness zone map and half of the country has shifted. Read more here so you're ready to plant this spring. Gardeners, take note! The USDA released a new hardiness zone ...
Is Georgia getting too hot for it’s iconic peaches?
Hardiness of plants is defined by their native extent's geographic location: longitude, latitude and elevation. These attributes are often simplified to a hardiness zone. In temperate latitudes, the term most often describes resistance to cold, or "cold-hardiness", and is generally measured by the lowest temperature a plant can withstand.
In 2012 the USDA updated their plant hardiness map based on 1976–2005 weather data, using a longer period of data to smooth out year-to-year weather fluctuations. [7] Two new zones (12 and 13) were added to better define and improve information sharing on tropical and semitropical plants, they also appear on the maps of Hawaii and Puerto Rico.
The ultimate effect is on plant growth as well as development and reduced yield and quality. Breeding for heat stress tolerance can be mitigated by breeding plant varieties that have improved levels of thermo-tolerance using different conventional or advanced genetic tools. Marker assisted selection techniques for breeding are highly useful.
Waiting on the weather is an old story in agriculture, but as climate change drives an increase in spring rains across the Midwest, the usual anxiety around the ritual of spring planting is ...
The actual tree line is set by the mean temperature, while the realized tree line may be affected by disturbances, such as logging, [6] or grazing [11] Most human activities cannot change the actual tree line, unless they affect the climate. [6] The tree line follows the line where the seasonal mean temperature is approximately 6 °C or 43 °F.
A more resilient plant that is "hardy to zone 9" can tolerate a minimum temperature of -7°C. First developed for the United States by the Department of Agriculture (USDA), the use of the zones has been adopted by other nations. Based on the average annual minimum temperature for a given location, the USDA map provides an easy guideline for ...