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cambium |
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cambiumIn botany, a layer of actively dividing cells (lateral meristem), found within stems and roots, that gives rise to secondary growth in perennial plants, causing an increase in girth. There are two main types of cambium: vascular cambium, which gives rise to secondary xylem and phloem tissues, and cork cambium (or phellogen), which gives rise to secondary cortex and cork tissues (see bark). How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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These harsh conditions so limit growth that the older trees of both species lose extensive amounts of their cambial layer, the cell layer that produces new tissue and bark. Parmeter, University of California, Berkeley), and record soil and cambial temperatures to determine heating under different burning conditions (S. O `rating' de volatilidade `V6(bra)' atribuido ao Future Composto Moderado e ao Future Cambial demonstra uma exposicao moderada a alta a riscos de mercado. |
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