Short day plant
A short day plant is a
plantthat cannot flowerunder the long days of summer. Short day plants typically flower in the fall of the year. These plants require a certain number of hours of darkness in each 24 hour period (a short daylength) before floraldevelopment can begin. Plants use the phytochromesystem to sense daylength or photoperiod.
Examples of short day plants
Tobacco, var. Maryland Mammouth
duckweed, "Lemna minor"
Maize- tropical cultivars only - others are day neutral plants
Ogulative (quantitative requirement):
Fosket, D.E. "Plant Growth & Development, A Molecular Approach." Academic Press, san Diego, 1994, p. 495.
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Look at other dictionaries:
short-day plant — noun (botany) One that will flower only if the daily period of light is shorter than some critical length (cf ↑day neutral plant, ↑long day plant) • • • Main Entry: ↑short * * * short day plant «SHRT DAY», a plant that blooms only when its daily… … Useful english dictionary
short-day plant — trumpadienis augalas statusas T sritis augalininkystė apibrėžtis Augalas, kurio normaliam augimui ir raidai reikia trumpos dienos. atitikmenys: angl. short day plant rus. растение короткого дня … Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas
short-day plant — /ˈʃɔt deɪ plænt/ (say shawt day plant) noun a plant which requires a comparatively long period of darkness in a 24 hour period to initiate flowering; typically flowering in late summer or autumn as the nights lengthen and the daylight hours… … Australian English dictionary
short-day plant — A plant which will not flower until triggered to do so by exposure to one or a number of dark periods equal to or longer than its critical period. Other plant species are long day and some are daylength neutral. Genetic variation for daylength… … Glossary of Biotechnology
short-day — ˈ ̷ ̷| ̷ ̷ adjective : responding to a short photoperiod used especially of a plant * * * /shawrt day /, adj. Bot. requiring a short photoperiod. [1915 20] * * * adj. [attrib.] (of a plant) needing a daily period of darkness of more than a… … Useful english dictionary
short-day — adjective Date: 1920 responding to or relating to a short photoperiod used especially of a plant; compare day neutral, long day … New Collegiate Dictionary
short-day — adjective (of a plant) needing a relatively long daily period of darkness to initiate flowering … English new terms dictionary
long-day plant — /ˈlɒŋ deɪ plænt/ (say long day plant) noun a plant which requires a comparatively short period of darkness in a 24 hour period to initiate flowering, typically flowering in late spring or early summer as the length of the nights shortens and… … Australian English dictionary
long-day plant — Plants requiring a period of short nights before the switch from vegetative to reproductive growth can be initiated. See: short day plant … Glossary of Biotechnology
long-day plant — noun A plant that will only flower after being exposed to conditions of long days and short nights • • • Main Entry: ↑long * * * long day plant «LNG DAY, LONG », a plant that flowers only when exposed to light for a relatively long period of time … Useful english dictionary