![]() The carpel is believed to be the evolutionary product of an originally leaflike organ bearing ovules along its margin. Pea and bean plants, exemplifying the simplest situation, show in each flower a single pistil (female structure), traditionally thought of as a megasporophyll or carpel. The concept of “fruit” is based on such an odd mixture of practical and theoretical considerations that it accommodates cases in which one flower gives rise to several fruits ( larkspur) as well as cases in which several flowers cooperate in producing one fruit ( mulberry). The principal purpose of the fruit is the protection and dissemination of the seed. Fertilization induces various changes in a flower: the anthers and stigma wither, the petals drop off, and the sepals may be shed or undergo modifications the ovary enlarges, and the ovules develop into seeds, each containing an embryo plant. It usually contains seeds, which have developed from the enclosed ovule after fertilization, although development without fertilization, called parthenocarpy, is known, for example, in bananas. For treatment of the nutrient composition and processing of fruits, see fruit processing.īotanically, a fruit is a mature ovary and its associated parts. For treatment of the cultivation of fruits, see fruit farming. Popularly, however, the term is restricted to the ripened ovaries that are sweet and either succulent or pulpy. Thus, apricots, bananas, and grapes, as well as bean pods, corn grains, tomatoes, cucumbers, and (in their shells) acorns and almonds, are all technically fruits. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!įruit, the fleshy or dry ripened ovary of a flowering plant, enclosing the seed or seeds.Learn about the major environmental problems facing our planet and what can be done about them! Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century. ![]() Britannica Beyond We’ve created a new place where questions are at the center of learning.100 Women Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians.COVID-19 Portal While this global health crisis continues to evolve, it can be useful to look to past pandemics to better understand how to respond today.Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more.Demystified Videos In Demystified, Britannica has all the answers to your burning questions.This Time in History In these videos, find out what happened this month (or any month!) in history.#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find.Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives.Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions.
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