photoperiod response

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• Photoperiodism — is the physiological reaction of organisms to the length of day or night. It occurs in plants and animals. Contents 1 In plants 1.1 Long day plants 1.2 Short day plants 1.3 …   Wikipedia

• Diapause — is the delay in development in response to regularly and recurring periods of adverse environmental conditions.[1][2] It is considered to be a physiological state of dormancy with very specific initiating and inhibiting conditions. Diapause is a… …   Wikipedia

• Cannabis cultivation — Typical home grown organic sinsemilla bud compared to a cigarette pack. This article presents common techniques and facts regarding the cultivation of the flowering plant cannabis, primarily for the production and consumption of marijuana buds.… …   Wikipedia

• agricultural technology — Introduction       application of techniques to control the growth and harvesting of animal and vegetable products. Soil preparation       Mechanical processing of soil so that it is in the proper physical condition for planting is usually… …   Universalium

• plant development — Introduction       a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… …   Universalium

• Melatonin — Not to be confused with Melanin or Melanotan. Melatonin Systematic (IUPAC) name …   Wikipedia

• dormancy — /dawr meuhn see/, n. the state of being dormant. [1780 90; DORM(ANT) + ANCY] * * * ▪ biology Introduction       state of reduced metabolic activity adopted by many organisms under conditions of environmental stress or, often, as in winter, when… …   Universalium

• Indoor Cannabis cultivation — This article is about methods of cultivating Cannabis plants indoors, growing them in a soil like medium, and adding fertilizer when the plants are given water. Cultivating plants indoors can also be done through the use of hydroponics; however,… …   Wikipedia

• Marsh rice rat — Temporal range: Rancholabrean (300,000 years before present) – present Conservation status …   Wikipedia

• Hypothalamus — Brain: Hypothalamus Location of the human hypothalamus …   Wikipedia

• Cryptochrome — 1 (photolyase like) Crystal structure of the PHR domain of cryptochrome 1 from Arabidopsis thaliana.[1] …   Wikipedia