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leaf of a plant

См. также в других словарях:

  • Leaf — For other uses, see Leaf (disambiguation). The leaves of a Beech tree …   Wikipedia

  • Plant evolutionary developmental biology — For a more ecological discussion on the evolution of plant morphology, refer to Evolutionary history of plants Evolutionary developmental biology (evo devo) refers to the study of developmental programs and patterns from an evolutionary… …   Wikipedia

  • leaf — leafless, adj. leaflike, adj. /leef/, n., pl. leaves /leevz/, v. n. 1. one of the expanded, usually green organs borne by the stem of a plant. 2. any similar or corresponding lateral outgrowth of a stem. 3. a petal: a rose leaf. 4. leaves… …   Universalium

  • Leaf — /leef/, n. Munro /mun roh /, 1905 76, U.S. author and illustrator of books for children. * * * I Any flattened, green outgrowth from the stem of a vascular plant. Leaves manufacture oxygen and glucose, which nourishes and sustains both plants and …   Universalium

  • Leaf Area Index — The Leaf Area Index or LAI is the ratio of total upper leaf surface of vegetation divided by the surface area of the land on which the vegetation grows. The LAI is a dimensionless value, typically ranging from 0 for bare ground to 6 for a dense… …   Wikipedia

  • leaf — noun ADJECTIVE ▪ new, young ▪ autumn, fall (AmE) ▪ dead, dry, fallen, falling, rotting …   Collocations dictionary

  • Plant perception (paranormal) — In the study of paranormal phenomenon Plant perception, or biocommunication in plant cells, has come to mean a belief that plants are sentient, that they experience pain, pleasure, or emotions such as fear and affection, and that they have the… …   Wikipedia

  • leaf — {{11}}leaf (n.) O.E. leaf leaf of a plant; page of a book, from P.Gmc. *laubaz (Cf. O.S. lof, O.N. lauf, O.Fris. laf, Du. loof, O.H.G. loub, Ger. Laub foliage, leaves, Goth. lauf), perhaps from PIE *leup to peel off, break off (Cf. Lith …   Etymology dictionary

  • leaf — 1. noun /liːf/ a) The usually green and flat organ that represents the most prominent feature of most vegetative plants. gold leaf b) Anything resembling the leaf of a plant. The train car has one single leaf and two double leaf doors per side 2 …   Wiktionary

  • 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

  • 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

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