pollen plant

См. также в других словарях:

• Plant sexuality — Close up of an Echinopsis spachiana flower, showing both carpels (only the styles and stigmas are visible) and stamens, making it a perfect flower. Plant sexuality covers the wide variety of sexual reproduction systems found across the plant… …   Wikipedia

• plant disease — ▪ plant pathology Introduction       an impairment of the normal state of a plant that interrupts or modifies its vital functions.       All species of plants, wild and cultivated alike, are subject to disease. Although each species is… …   Universalium

• Pollen zone — Pollen zones are a system of subdividing late Pleistocene and early Holocene paleoclimate using the data from pollen cores. The sequence provides a global chronological structure to a wide variety of scientists, such as geologists,… …   Wikipedia

• Pollen count — is the measurement of the number of grains of pollen in a cubic meter of air. The higher the number, the more people will suffer if they are allergic to a particular pollen . Usually, the counts are announced for specific plants such as grass,… …   Wikipedia

• Plant breeding — is the art and science of changing the genetics of plants in order to produce desired characteristics.[1] Plant breeding can be accomplished through many different techniques ranging from simply selecting plants with desirable characteristics for …   Wikipedia

• Plant hormone — Plant hormones (also known as phytohormones) are chemicals that regulate plant growth. Plant hormones are signal molecules produced within the plant, and occur in extremely low concentrations. Hormones regulate cellular processes in targeted… …   Wikipedia

• Plant virus — Plant viruses are viruses affecting plants.Plant viruses, like all other viruses, are obligate intracellular parasites that do not have the molecular machinery to replicate without the host. The plant viruses are defined as viruses pathogenic to… …   Wikipedia

• Plant taxonomy — is the science that finds, describes, classifies, identifies, and names plants. It thus is one of the main branches of taxonomy. Plant taxonomy is closely allied to plant systematics, and there is no sharp boundary between the two. In practice,… …   Wikipedia

• pollen — [päl′ən] n. [ModL < L, fine flour, dust < IE base * pel, dust, meal > L pulvis, dust, Gr palē, dust] the fine, dustlike mass of grains that are produced in the anthers or microspore sacs of seed plants, containing the male sexual cells… …   English World dictionary

• Pollen — Tip of a tulip stamen with many grains of pollen Closeup image of a cac …   Wikipedia

• plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… …   Universalium