adventitious root definition
prop roots of maize, clinging roots of climbing vines, and roots of BULBS, such as the daffodil. They are especially numerous on underground stems, such as rhizomes, corms, and tubers, and make it possible to vegetatively propagate many plants from stem or leaf cuttings. Adventitious root growth is extremely evident in strangler figs, which produce this type of root as a support. Fibrous roots are known for the cluster or group of similarly sized, thickness, hair like structure. Answer. Define adventitious root. adventitious definition: 1. not expected or planned: 2. not expected or planned: . This will allow any adventitious roots in contact with the soil to grow and aid in developing a strong and vigorous root system for your tomatoes. They become swollen at the apex and have a definite shape, eg., ginger. Adventitious root definition? Accidental, additional, appearing casually. Definition of Adventitious Root System 2. They branch like the tap root. Adventitious roots develop from preformed root primordia or from induced primordia by division of parenchyma cells, similar to the process of initiation of normal lateral roots. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Can you spell these 10 commonly misspelled words? In root: Types of roots and root systems. Botany, Zoology. adventitious (of a root) growing laterally from a stem rather than the main root, e.g. 1. adventitious root - root growing in an unusual location e.g. 0. Adventitious root growth is extremely evident in strangler figs, which produce this type of root as a support. You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary. African violet and … Adventitious Root Definition The roots that arise from any part of the plant, other than its designated root tissue (radicle) during the normal course of development, are called adventitious roots. These roots can arise from the injured root, nodes of the stem, internodes, branches, or any other tissue. Its primary functions are absorption of water and dissolved minerals and conduction of these to the stem, storage of reserve foods, and anchorage of the plant. What made you want to look up adventitious root? These roots are found in climbers (plants climbing on various structures). 2002, Colin Jones, The Great Nation, Penguin 2003, p. 30: The adventitious disappearance of those nearer the throne than the duke had, moreover, set tongues awagging. Prior to their emergence from the parent root, adventitious roots differentiate an apical meristem, root cap, and the beginning of a vascular cylinder. from a stem root - the usually underground organ that lacks buds or … Adventitious roots are the type of roots that arise from parts of the plant other than the radicle. Definition of adventitious root in the AudioEnglish.org Dictionary. Objectives covered include: Know where adventitious roots can grow from Information and translations of adventitious root in the most comprehensive dictionary definitions resource on the web. Some roots, called adventitious roots, arise from an organ other than the root—usually a stem, sometimes a leaf. adventitious (comparative more adventitious, superlative most adventitious) From an external source; not innate or inherent, foreign. Their main function is to absorb water and nutrients from the soil. 2 : arising or occurring sporadically or in … What does adventitious root mean? Adventitious definition: added or appearing accidentally or unexpectedly | Meaning, pronunciation, translations and examples adventitious root definition: A root growing from a location other than the underground, descending portion of the axis of a plant, as from a stem or leaf. Adventitious roots may develop on the stem or leaf. They become swollen at the apex and have a definite shape, eg., ginger. Plant hormones , termed auxins , are often applied to stem, shoot or leaf cuttings to promote adventitious root formation, e.g. Of or belonging to a structure that develops in an unusual place: adventitious roots. Adventitious root definition is - a root that arises from any point other than the radicle or the root axis (as the prop roots of corn arising from the lower stem). For eg., sweet potato. Adventitious root, tillering counts, plant height (cm), and root and plant dry weight (mg/plant) of winter wheat for 3 opening configurations in 2004-05 and 2005-06 Means within a column followed by the same letters are not significantly different at P = 0.05 Cropping Growth stage Treatments Adventitious Tillering season root counts 2004-05 Winter dormancy Strip-chop 5.5ab 2.0a (25 Nov. Noun 1. adventitious root - root growing in an unusual location e.g. ‘The young parasite then develops a tubercle, with adventitious roots and a shoot.’ ‘Oxygen transport from shoot through adventitious roots has been visualized directly.’ ‘After removal, such stem segments could produce adventitious roots under moist soil conditions, and produce new plants.’ This general definition separates adventitious roots from primary and lateral roots but within this general heading there is even more complexity as there are subgroups of adventitious roots formed both as a stress response and during normal development. adventitious root: 1 n root growing in an unusual location e.g. More than 250,000 words that aren't in our free dictionary, Expanded definitions, etymologies, and usage notes. Adventitious roots are plant roots that form from any nonroot tissue and are produced both during normal development (crown roots on cereals and nodal roots on strawberry [Fragariaspp.]) adventitious root synonyms, adventitious root pronunciation, adventitious root translation, English dictionary definition of adventitious root. Their formation is basically a survival mechanism, and therefore, their primary duty is to supplement the main root when its functioning is impaired due to disease, damage, or otherwise. Test Your Knowledge - and learn some interesting things along the way. In the interaction of hydric conditions within rootstocks for adventitious root number, on normal hydric condition the rootstock G.202 presented more adventitious root number, while in waterlogged condition the rootstock G.213 presented less emission of adventitious roots. from a stem Type of: root (botany) the usually underground organ that lacks buds or leaves or nodes; absorbs water and mineral salts; usually it anchors the plant to the ground from a stem root - the usually underground organ that lacks buds or … root - (botany) the usually underground organ that lacks buds or leaves or nodes; absorbs water and mineral salts; usually it anchors the plant to the ground. Learn more about the types of roots, their functions, how they grow, and their morphology. 1. “Taproot.” Wikipedia, Wikimedia Foundation, 28 June 2019, Available here. 1. root growing in an unusual location e.g. In other words, adventitious roots grow from an area of the plant other than the root zone. Define adventitious root. They may develop on roots or leaves, or on shoots as a new growth. 1 : coming from another source and not inherent or innate a Federal house without adventitious later additions adventitious influences. These roots can end up larger than the main tree and span larger plants, hugging them to support the fig as it strains towards the light. Increase your knowledge of adventitious roots by reviewing the lesson Adventitious Roots: Definition & Examples. It emerges from adventitious root definition aerial root is the cluster or group of similarly sized thickness. Or group of similarly sized, thickness, hair like structure sometimes a leaf plants climbing on various ). As stems or leaves, or sometimes a leaf the injured root nodes... And … Moreover, the taproot is persistent, while the adventitious roots and root systems root or fibrous is. Not always the case, however, since a root can store food promote adventitious root system AudioEnglish.org. 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