Mutobiqshavii rastani dar khokhoi nisbatan khushk

Rushdu numui rastaniho ba sharoiti muhiti zisti onho sakht aloqamandi dorad. Juzhoi (elementhoi) alohidai muhiti berunaro (ravshani, harorat, nami, tarkibi khok va gayrahoro) omilhoi ekologi menomand. Binobar on, vobasta ba omilhoi gunoguni ekologii muhiti atrof rastaniho mutobiqathoi gunogun paydo kardaand.

Gunogunii sharoiti muhiti zist boisi gunogunkhelii rastaniho megardad. Binobar on, mo dar vodiyu domanakuhho, teppayu margzorho, dashtu biyobonho rastanihoi bisyorero mebinem, ki baroi dar chunin sharoitho zindagi kardan bo harguna digargunshavii uzvhoyashon khususiyathoi mutobiqati paydo kardaand. Masalan, barghoi tutanjir, guli hasrat va khususan filodendron khele kalon ast. Pas, in rastaniho az joyhoe ovarda shudaand, ki namii farovon doshtaand. Dar haqiqat, vatani in rastaniho beshahoi sernami tropiki ast.

Rastanikhoi mahalhoi sernam az jihati sokht va namudi zohiri- ashon az rastanihoi joyhoi khushk ba kulli farq mekunand. Namii farovon ba kalon shudani barg yori merasonad. Va chi tavre ki malum ast, har qadar barg kalon boshad, vay hamon qadar obro beshtar bukhor mekunad.

mumkin ast. Bargi in rastaniho mayda ast. Bazan onho bebargand yo ba joi barg misli subbor (kaktus) khor dorand.

Dar khok to haddi zaruri narasidani nami, yo in ki az had ziyod budani on ba nashunamoi rastaniho tasir merasonad, ohista-ohista (tadrijan) namudi zohiri va sokhti onho tagyir meyobad.

Bargi bisyor rastanihoi mahalli khushk va garmbod vasilahoi mutobiqatie dorand, ki onho boisi kam bukhor gardidani ob meshavand. Masalan, serpashmaki va bo shirai mummonand ruypush budani barg, nisbatan kam budani masomaho va alomathoi digar az jumlai onhoand.

Bargi baze rastaniho, masalan sabr (aloe) va khanjari (agava) purmagzu serob meshavad. Dar in guna bargho ob zakhira meshavad.

Hususan, rastanihoi dashtu biyobon ba sershumor nabudani khelhoyashon dar chunin sharoit (khushki) nigoh nakarda, mutobiqathoi favqulodda gunogun paydo kardaand. Bazei onho barghoi nihoyat khurd yo suzanshakl dorand. Dar digarashon barg ba pulakchai nihoyat khurd mubaddal gashtaast. Dar saksavul boshad, umuman barg dida nameshavad. Ravandi fotosintez dar navdahoi sabz meguzarad. Baze rastanihoi joyhoi khushk inchunin ba tufayli reshai khele darozashon ba sharoiti khushki mutobiq gardidaand.

Hamin tavr, rastaniho dar davomi tarikhi duru darozi inkishofashon dar muhithoi gunogun nashunamo karda, bisyor alo- mathoi mutobiqati paydo kardaand.

1. Rastanihoi mahalli sernamro az rui kadom alomathoi zohiriashon farq kardan mumkin ast?
2. Rastanihoi mahalli khushk chi khel vositahoi mutobiqati dorand?
3. Bargi rastanihoi mahalhoi khushk chi guna ast?