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The chilling requirement of a fruit is the minimum period of cold weather after which a fruit-bearing tree will blossom.It is often expressed in chill hours, which can be calculated in different ways, all of which essentially involve adding up the total amount of time in a winter spent at certain temperatures.
The pollen source in a given area depends on the type of vegetation present and the length of their bloom period. What type of vegetation will grow in an area depends on soil texture, soil pH , soil drainage, daily maximum and minimum temperatures, precipitation, extreme minimum winter temperature, and growing degree days .
The timing of spring can impact the apple crop, but pruning trees in late-winter will help them maximize their potential, writes Oak Duke. Late winter is the perfect time to trim apple trees. Tips ...
Hopkins' bioclimatic law states that in North America east of the Rockies, a 130-m (400-foot) increase in elevation, a 4° change in latitude North (444.48 km), or a 10° change in longitude East (two-thirds of a time zone) will cause a biological event to occur four days later in the spring or four days earlier in the fall. [1]
Hoosiers are encouraged to keep a watchful eye on the weather this year. Here are three maps from NOAA on what Indiana can expect.
A relatively small number of cultivars are "triploid", meaning that they provide almost no viable pollen for themselves or other apple trees. Apples that can pollinate one another are grouped by the time they flower so cross-pollinators are in bloom at the same time. Pollination management is an important component of apple culture.
The MAIA estimates they have planted more than 600,000 EverCrisp trees across the United States since the apple's development. [7] EverCrisp is considered a "club apple" variety. [8] This means that apple growers who want to breed, harvest, and sell EverCrisp are required to purchase a membership and license. [8]
Here is all the latest information for the approaching #winter storm in one post. A Winter Storm Warning continues across much of central Indiana, with a Winter Weather Advisory far north/northwest.