Editing Raspberry (section)

== Description ==
[[File:Raspberry - halved (Rubus idaeus).jpg|thumb|125px|Halved raspberry; torus does not remain when the fruit is picked]]
[[File:Halved blackberry (Rubus fruticosus).jpg|thumb|135px|Halved blackberry; torus remains when the fruit is picked]]
A raspberry is an [[aggregate fruit]], developing from the numerous distinct carpels of a single flower.<ref>{{Cite encyclopedia |title=Angiosperm - Petals, Stamens, Sepals |author= |encyclopedia=Encyclopedia Britannica |date= |access-date=6 December 2023 |url=https://www.britannica.com/plant/angiosperm/The-corolla#ref597008 |quote=consist of several separate carpels of one apocarpous gynoecium (e.g., raspberries where each unit is a single carpel }}</ref> What distinguishes the raspberry from its [[blackberry]] relatives is whether or not the torus ([[receptacle (botany)|receptacle]] or stem) "picks with" (i.e., stays with) the fruit. When picking a blackberry fruit, the torus stays with the fruit. With a raspberry, the torus remains on the plant, leaving a hollow core in the raspberry fruit.<ref>{{cite web |author1=Gina Fernandez |author2=Elena Garcia |author3=David Lockwood |title=Fruit development |url=https://content.ces.ncsu.edu/southeast-regional-caneberry-production-guide/fruit-development |publisher=North Carolina State University, Cooperative Extension |access-date=9 August 2018 |archive-date=25 April 2019 |archive-url=https://web.archive.org/web/20190425030351/https://content.ces.ncsu.edu/southeast-regional-caneberry-production-guide/fruit-development |url-status=live }}</ref>

Raspberries are grown for the fresh fruit market and for commercial processing into [[IQF|individually quick frozen]] (IQF) fruit, [[purée]], juice, or [[dried fruit]] used in a variety of grocery products such as [[raspberry pie]]. Raspberries need ample sun and water for optimal development. Raspberries thrive in well-drained soil with a [[pH]] between 6 and 7 with ample organic matter to assist in retaining water.<ref name="Growing Raspberries">{{cite web |last=Strik |first=B.C. |year=2008 |title=Growing Raspberries in Your Home Garden |url=https://ir.library.oregonstate.edu/downloads/0p096714f |access-date=23 October 2021 |work=Growing Small Fruits |publisher=Oregon State University Extension Service |archive-date=26 January 2021 |archive-url=https://web.archive.org/web/20210126060506/https://ir.library.oregonstate.edu/downloads/0p096714f |url-status=live }}</ref> While moisture is essential, wet and heavy soils or excess [[irrigation]] can bring on ''[[Phytophthora]]'' root rot, which is one of the most serious pest problems faced by the red raspberry. As a cultivated plant in moist, temperate regions, it is easy to grow and tends to spread unless pruned. Escaped raspberries frequently appear as garden weeds, spread by seeds found in bird droppings.{{cn|date=October 2023}}

An individual raspberry weighs {{convert|3|–|5|g|oz|abbr=on}} and is made up of around 100 [[drupelet]]s,<ref>{{cite journal |journal=Physiologia Plantarum |last1=Iannetta |volume=110 |first1=P. P. M. |issue=4 |last2=Wyman |first2=M. |last3=Neelam |first3=A. |last4=Jones |first4=C. |last5=Taylor |first5=M. A. |last6=Davies |first6=H. V. |last7=Sexton |first7=R. |title=A causal role for ethylene and endo-beta-1,4-glucanase in the abscission of red-raspberry (''Rubus idaeus'') drupelets |pages=535–543 |date=December 2000 |doi=10.1111/j.1399-3054.2000.1100417.x }}</ref> each of which consists of a juicy pulp and a single central seed. A raspberry bush can yield several hundred berries a year.{{cn|date=February 2025}}