Biennialbearingbearing is a term used in pomology to refer to trees that have an irregular crop load from year to year. In the "on" year too much fruit is set, leading to small fruit size. What Is BiennialBearing: Information On Alternate Bearing Of Fruit Trees. By Susan Patterson. RHS Advice Guides. Quick facts. What is biennialbearing? Cause. Control. Heavy crops follow light crops when apples get into a pattern of biennialbearing. Image: RHS. Biennialbearing, or alternate bearing, is when a plant or tree bears heavily in one year and very lightly or not at all in the next. Biennialbearing in fruit trees is characterized by one year of high fruit load followed by a next year of very low load or no production (Guitton et al., 2012). Biennialbearing is the term used to describe the annual cyclical changes in apple orchard yields characterised by ‘on’ and ‘off’ years that yield ‘heavy’ and ‘light’ fruit loads, respectively. (2011), biennialbearing involves insufficient flowering and. should not be confused with low fruit set, which occurs. due to poor pollination. In the apple crop, biennialbearing is a troublesome. Biennialbearing, or alternate bearing, is characterized by a heavy crop one year (the “on” year), accompanied by little to no crop the following year (the “off” year). biennialbearing. When a fruiting plant produces heavy and light crops in alternate years.The trees are biennialbearing, which means the harvest is greater in alternate years. The genetic determinants of biennialbearing in apple were investigated using the 114 owering individuals from an F1 population of 122 genotypes, from a ‘Starkrimson’... Biennialbearing. Developing seeds inside apples send strong signals to apple shoots telling them not to set flower buds for the next year. Thinning reduces this signal. information on putative genetic control of biennialbearing bioactive GA through their influence on key steps of GA in apple. While the approach used here was based on synthesis... BiennialBearing. Occasionally certain fruit trees, such as apples, bear heavily one year and sparsely the next.Biennialbearing is difficult to alter or correct. Biennialbearing is a condition in which the tree produces few flowers one year and a large number the following year.For more information, refer to the section “Pollination Requirements.”
