Citizendia
Your Ad Here

Parsley is an example of a biennial plant.
Parsley is an example of a biennial plant. Parsley ( Petroselinum crispum) is a bright Green, biennial Herb, also used as Spice.

A biennial plant is a flowering plant that takes two years to complete its lifecycle. Plants are living Organisms belonging to the kingdom Plantae. A life cycle is a period involving 1 Generation of an Organism through means of Reproduction, whether through Asexual reproduction or Sexual In the first year the plant grows leaves, stems, and roots (vegetative structures), then it enters a period of dormancy over the colder months. Usually the stem remains very short and the leaves are low to the ground, forming a rosette. Many biennials require a cold treatment, or vernalization, before they will flower. Vernalization (vernalisation - British English) is the acquisition of the competence to flower in the spring by exposure to the prolonged cold of winter The next spring or summer the stem of the biennial plant elongates greatly, or "bolts". The plant then flowers, producing fruits and seeds before it finally dies. A flower, also known as a bloom or Blossom, is the reproductive structure found in Flowering plants (plants of the division Magnoliophyta, also The term fruit has different meanings dependent on context and the term is not synonymous in Food preparation and Biology. A seed (in some plants referred to as a kernel) is a small embryonic Plant enclosed in a covering called the seed coat usually with some stored There are far fewer biennials than either perennials or annuals. A perennial plant or perennial ( Latin per, "through" annus, "year" is a Plant that lives for more than Botanically an annual plant is a Plant that usually germinates, Flowers and dies in one Year.

Under extreme climatic conditions, a biennial plant may complete its life cycle in a very short period of time (e. g. three or four months instead of two years). This is quite common in vegetable or flower seedlings that were exposed to cold conditions, or vernalized, before they were planted in the ground. This behavior leads to many normally biennial plants being treated as annuals in some areas. Botanically an annual plant is a Plant that usually germinates, Flowers and dies in one Year. Flowering can be induced in some biennials without vernalization by application of the plant hormone gibberellin, but this is rarely done commercially. Plant hormones (also known as phytohormones) are chemicals that regulate plant growth Gibberellins (GAs are Plant hormones that regulate growth and influence various developmental processes, including "stem elongation Secondary growth

The Sweet William Dwarf plant is a biennial plant
The Sweet William Dwarf plant is a biennial plant[1]

From a gardener's perspective, a plant's status as annual, biennial, or perennial often varies based on location or purpose. Botanically an annual plant is a Plant that usually germinates, Flowers and dies in one Year. A perennial plant or perennial ( Latin per, "through" annus, "year" is a Plant that lives for more than Biennials grown for flowers, fruits, or seeds need to be grown for two years. Biennials that are grown for edible leaves or roots are grown as annuals, e. g. beets, Brussels sprouts, cabbage, carrots, celery, lettuce, parsley, and Swiss chard. The beet or beetroot is a Flowering plant species ( Beta vulgaris) in the family Chenopodiaceae. This article is about the plant For the pencil game see Sprouts (game. The cabbage ( Brassica oleracea var capitata) is a leafy garden plant of the Family Brassicaceae (or Cruciferae used as a The carrot ( Daucus carota subsp sativus, Etymology: Middle French carotte, from Late Latin carōta, from Greek karōton See also Wild celery Apium graveolens is a plant species in the family Apiaceae, and yielding celery and Celeriac Lettuce ( Lactuca sativa) is a Temperate annual or Biennial plant of the daisy family Asteraceae. Parsley ( Petroselinum crispum) is a bright Green, biennial Herb, also used as Spice. Chard ( Beta vulgaris var cicla) also known as Swiss Chard, Silverbeet, Perpetual Spinach, Crab Beet and Mangold If a normally biennial plant is grown in extremely harsh conditions, it is likely to be treated as an annual because it will not survive the winter cold. Conversely, an annual grown under extremely favorable conditions may have highly successful seed propagation, giving it the appearance of being biennial or perennial. Some short-lived perennials may appear to be biennial rather than perennial. True biennials flower only once, while many perennials will flower every year once mature.

Examples of biennial plants are parsley, Lunaria, silverbeet, Sweet William, colic weed, and carrot. Parsley ( Petroselinum crispum) is a bright Green, biennial Herb, also used as Spice. For the band see Lunaria (band. For the Brachiopod Genus, see Lunaria (brachiopod. Chard ( Beta vulgaris var cicla) also known as Swiss Chard, Silverbeet, Perpetual Spinach, Crab Beet and Mangold Dianthus barbatus ( Sweet William) is a species of Dianthus native to the mountains of southern Europe from the Pyrenees The carrot ( Daucus carota subsp sativus, Etymology: Middle French carotte, from Late Latin carōta, from Greek karōton Plant breeders have produced annual cultivars of several biennials that will flower the first year from seed, e. g. foxglove, stock, and hollyhock. Matthiola incana is one of several species of stock, and is sometimes called hoary stock.

See also

References

  1. ^ Detailed Information on Sweet William Dianthus barbatus. Botanically an annual plant is a Plant that usually germinates, Flowers and dies in one Year. A perennial plant or perennial ( Latin per, "through" annus, "year" is a Plant that lives for more than Dave's Garden.

© 2009 citizendia.org; parts available under the terms of GNU Free Documentation License, from http://en.wikipedia.org
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic