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dormancy breaking

См. также в других словарях:

  • dormancy — A period in the life of an animal (hibeRNAtion and aestivation) or plant during which growth slows or completely ceases. Evolved to allow survival of adverse environmental conditions. Annual plants survive the winter as dormant seeds, while many… …   Glossary of Biotechnology

  • Seed — A seed Audio IPA|en us seed.ogg|/ˈsiːd/ (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 food. It is the product of the ripened ovule of gymnosperm and… …   Wikipedia

  • Cyanamid — Strukturformel Allgemeines Name Cyanamid Andere Namen Alzod …   Deutsch Wikipedia

  • seed and fruit — ▪ plant reproductive part Introduction       respectively, the characteristic reproductive (reproductive system, plant) body of both angiosperms (flowering plants) and gymnosperms (conifers, cycads, and ginkgos) and the ovary that encloses it.… …   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

  • Chilling requirement — Chilling unit redirects here. For the machines, see Chiller and Water chiller. The chilling requirement of a fruit is the minimum period of cold weather after which a fruit bearing tree will blossom. It is often expressed in chill hours, which… …   Wikipedia

  • Germination — is the process whereby growth emerges from a period of dormancy. The most common example of germination is the sprouting of a seedling from a seed of an angiosperm or gymnosperm. However, the growth of a sporeling from a spore, for example the… …   Wikipedia

  • Evolutionary history of plants — Plants have evolved through increasing levels of complexity, from the earliest algal mats, through bryophytes, lycopods, ferns and gymnosperms to the complex angiosperms of today. While the simple plants continue to thrive, especially in the… …   Wikipedia

  • angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction       any member of the more than 300,000 species of flowering plants (division Anthophyta) …   Universalium

  • Gibberellin — Gibberellins (GAs) are plant hormones that regulate growth and influence various developmental processes, including stem elongation , germination, dormancy, flowering, sex expression, enzyme induction and leaf and fruit senescence.… …   Wikipedia

  • Antarctica — /ant ahrk ti keuh, ahr ti /, n. the continent surrounding the South Pole: almost entirely covered by an ice sheet. ab. 5,000,000 sq. mi. (12,950,000 sq. km). Also called Antarctic Continent. * * * Antarctica Introduction Antarctica Background:… …   Universalium

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