{"id":90853,"date":"2018-02-11T03:25:00","date_gmt":"2018-02-11T03:25:00","guid":{"rendered":""},"modified":"2023-01-06T20:44:18","modified_gmt":"2023-01-06T20:44:18","slug":"conifere","status":"publish","type":"post","link":"https:\/\/cvnextjob.com\/index.php\/2018\/02\/11\/conifere\/","title":{"rendered":"Conifere"},"content":{"rendered":"
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In aceast\u0103 \u00eencreng\u0103tur\u0103 sunt grupate plantele cele mai evoluate, gimnospermele \u015fi angiospermele, cu corpul format din r\u01ced\u01cecin\u01ce, tulpin\u01ce, frunze \u015fi flori, florile fiind organe noi, ne\u00eent\u00e2lnite la pteridofite. Caracteristic pentru spermatofite este prezen\u0163a semin\u0163elor ca organe de \u00eenmul\u0163ire. Sub\u00eencreng\u01cetura Coniferophytina (Gimnospermae). Gimnospermele sunt arbori \u015fi arbu\u015fti cu o mare r\u01cesp\u00e2ndire \u00een regiunile de munte \u015fi \u00een cele nordice. Ele au tulpini \u00eenalte, drepte \u015fi frunze aciculare, persistente. Florile sunt reunite \u00een conuri femele \u015fi conuri mascule. Florile femele nu au ovar, stil \u015fi stigmat. Carpelele nu se \u00eenchid spre a forma ovarul, ci r\u0103m\u00e2n libere \u015fi poart\u0103 la suprafa\u0163a lor ovulele descoperite. Din ovule se dezvolt\u0103 semin\u0163ele gola\u015fe, ne\u00eenchise \u00een fruct, organ care lipse\u015fte la aceste plante. Neav\u00e2nd ovar, stil \u015fi stigmat, polenul transportat de v\u00e2nt ajunge direct pe ovul. Clasa Pinatae. Ordinul Pinales. Conifere. Familia Taxaceae cuprinde arbori \u015fi arbu\u015fti cu frunze dispuse spiralat. Tisa: s\u0103m\u00e2n\u0163a sa este \u00eenconjurat\u0103 la baz\u0103 de un aril ro\u015fu, ca o cup\u0103 c\u0103rnoas\u0103, singura parte netoxic\u0103, pe care o consum\u0103 p\u0103s\u0103rile, contribuind la r\u0103sp\u00e2ndirea semin\u0163elor. Celelalte organe ale tisei con\u0163in un alcaloid puternic \u2013 taxina, otr\u0103vitoare pentru animale. Lemnul greu, dur \u015fi compact, de culoare ro\u015fcat\u0103, este foarte pre\u0163ios pentru sculptur\u0103 \u015fi t\u00e2mpl\u0103rie fin\u0103. Frecvent\u0103 \u00een p\u0103durile noastre din trecut, ast\u0103zi devine tot mai rar\u0103, de aceea este ocrotit\u0103 prin lege ca monument al naturii. Familia Pinaceae cuprinde arbori \u015fi arbu\u015fti cu tulpina dreapt\u0103 \u015fi coroana de obicei piramidal\u0103. Florile unisexuate sunt dispuse \u00een conuri femele \u015fi mascule. Gr\u0103unciorii de polen au doi saci cu aer. S\u0103m\u00e2n\u0163a matur\u0103 poart\u0103 o arip\u0103, ce-i ajut\u0103 la r\u0103sp\u00e2ndire. Molidul, bradul ro\u015fu: coroana are forma ascu\u0163it-piramidal\u0103, uneori aproape columnar\u0103. Frunzele \u00een patru muchii \u00eenconjoar\u0103 ramurile. Conurile mascule galbene au numeroase<\/p>\n

stamine. Conurile femele tinere (inflorescente) sunt ro\u015fii-purpurii \u015fi \u00eendreptate \u00een sus (erecte); spre maturitate devin brune \u015fi se apleac\u0103, apoi cad \u00een \u00eentregime pe p\u0103m\u00e2nt. Lemnul molidului serve\u015fte \u00een construc\u0163ii, \u00een t\u00e2mpl\u0103ria u\u015foar\u0103, la construirea avioanelor, iar ca lemn de rezonan\u0163\u0103 este c\u0103utat pentru fabricarea instrumentelor muzicale. Molidul se folose\u015fte ca materie prim\u0103 \u00een industria h\u00e2rtiei \u015fi a celulozei. Scoar\u0163a con\u0163ine 10 \u2013 11% tanin \u015fi se \u00eentrebuin\u0163eaz\u0103 ca materie tanant\u0103 \u00een t\u0103b\u0103c\u0103rie. Prin distilarea r\u0103\u015finii se ob\u0163ine terebentin\u0103, colofoniu, gudroane \u015fi alte substan\u0163e chimice utile. Predomin\u0103 \u00een p\u0103duri \u00eentinse \u2013 molidi\u015furi \u2013 din etajul montan superior.<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

In aceast\u0103 \u00eencreng\u0103tur\u0103 sunt grupate plantele cele mai evoluate, gimnospermele \u015fi angiospermele, cu corpul format din r\u01ced\u01cecin\u01ce, tulpin\u01ce, frunze \u015fi flori, florile fiind organe noi, ne\u00eent\u00e2lnite la pteridofite. Caracteristic pentru spermatofite este prezen\u0163a semin\u0163elor ca organe de \u00eenmul\u0163ire. Sub\u00eencreng\u01cetura Coniferophytina (Gimnospermae). Gimnospermele sunt arbori \u015fi arbu\u015fti cu o mare r\u01cesp\u00e2ndire \u00een regiunile de munte \u015fi […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/cvnextjob.com\/index.php\/wp-json\/wp\/v2\/posts\/90853"}],"collection":[{"href":"https:\/\/cvnextjob.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cvnextjob.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cvnextjob.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cvnextjob.com\/index.php\/wp-json\/wp\/v2\/comments?post=90853"}],"version-history":[{"count":0,"href":"https:\/\/cvnextjob.com\/index.php\/wp-json\/wp\/v2\/posts\/90853\/revisions"}],"wp:attachment":[{"href":"https:\/\/cvnextjob.com\/index.php\/wp-json\/wp\/v2\/media?parent=90853"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cvnextjob.com\/index.php\/wp-json\/wp\/v2\/categories?post=90853"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cvnextjob.com\/index.php\/wp-json\/wp\/v2\/tags?post=90853"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}