Biennial bearing is a term used in pomology to refer to trees that have an irregular crop load year after year. In the year "on" too much fruit is set, leading to small fruit size. Excees weight in the main branches might be too much for their mechanical resistance, breaking them. The main consequence is that flower induction will be lower, and the subsequent year will be "off" (too little fruit). Pomology (from Latin pomum (fruit) + -logy) is is branch of botany that studies and cultivates fruits. ...

The behavior could be due to plant hormones, particularly gibberellins produced in excess in the year "on" in the embryos of the young fruit. It could also be caused by depletion of carbohydrate reserves in the tree. Plant hormones (or plant growth regulators, or PGRs) are internally secreted chemicals in plants that are used for regulating their growth. ... Gibberellins are a plant growth substance (phytohormone) involved in promotion of stem elongation, mobilisation of food reserves in seeds and other processes. ... Categories: Biology stubs | Developmental biology ... Carbohydrates are chemical compounds that contain oxygen, hydrogen, and carbon atoms. ...

Biennial bearing is more common in certain fruit crops like apricot and avocado, and almost non-existing in grapes. Binomial name Prunus armeniaca L. The Apricot (Prunus armeniaca, syn. ... Binomial name Persea americana Mill. ... Species Vitis acerifolia Vitis aestivalis Vitis amurensis Vitis arizonica Vitis x bourquina Vitis californica Vitis x champinii Vitis cinerea Vitis x doaniana Vitis girdiana Vitis labrusca Vitis x labruscana Vitis monticola Vitis mustangensis Vitis x novae-angliae Vitis palmata Vitis riparia Vitis rotundifolia Vitis rupestris Vitis shuttleworthii Vitis tiliifolia Vitis...

Horticultural management

This disorder can be reduced by winter pruning, and thinning of flowers and young fruit. In microeconomics, pruning taken as a metaphor from gardening, refers to the removal of excess items from a budget. ... Thinning is in forestry a type of selective cutting primarily undertaken to make the forest more profitable in an upcoming final felling. ... Wildflowers A flower is the reproductive organ of those plants classified as angiosperms ( flowering plants; Division Magnoliophyta). ... Fruit stall in Barcelona, Catalonia. ...