VDO of Why Holding Fruit on Trees May Limit Next Year's Crop
Why Holding Fruit on Trees May Limit Next Year's Crop Tube. Duration : 4.03 Mins.We had a good read. For the benefit of yourself. Be sure to read to the end. I want you to get good knowledge from Teacher Supply. This is the VOA Special English Agriculture Report, from voaspecialenglish.com Alternate bearing is a widespread problem for growers of citrus and other fruit trees. It can affect a large area or just individual trees or even part of a tree. No, it is not a disease. Alternate bearing is when a tree produces a heavy crop one year, called an "on-crop," followed by an "off-crop" the next year. On-crop trees produce a large number of small fruit with little value. Off-crop trees produce no fruit or a small number of large fruit that often have thick, unappealing skins. Citrus growers know that the number of fruit in their current crop has an inverse effect on the number of flowers in the return bloom. In other words, if one number is big, the other number will be small. Two researchers recently did a study to understand how this happens. Johannes Verreynne is now at Stellenbosch University in South Africa. Carol Lovatt is at the University of California, Riverside. They studied "Pixie" mandarin trees in the Ojai Valley of California. Mandarin oranges are also known as tangerines. The study showed that fruit on the tree reduces the next bloom by stopping buds from appearing. This limits the number and length of summer and fall shoots. As a result, there is a reduction in the number of nodes, or joints, that produce groups of flowers along stems. Fruit on the tree during spring bloom stops the growth of flowering shoots. During an on-crop year, growers often treat the fruit so ...
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