Ngaba ungathanda ukwazi ukuba zithini iindawo zomthi? Ngaphandle kwamathandabuzo, kuyathakazelisa kakhulu ukwazi ngakumbi ngezi zityalo, apho inani elikhulu lezilwanyana lixhomekeke kuzo-kubandakanya thina bantu. Mhlawumbi ukuba sonke besifunde iindawo nemisebenzi yezityalo, umhlaba ubuya kwahluka, kodwa esi sesinye isihloko esingazukuphatha apha.
Emva koko ndiza kuchaza ukuba leliphi na icandelo, nokuba ziluncedo njani emithini.
Yintoni umthi?
Umthi osandul 'ukuntshula. Ezi cotyledon zimbini (ziphelele, amagqabi alula) zinokwahluka.
Umthi Sisityalo esineenkuni esifikelela kwi-5 yeemitha ubuncinci ukuphakama (abanye bathi yi-6 okanye i-7), kwaye loo masebe avela kwiimitha ezithile ngaphezulu komhlaba. Amagqabi anokuqaqamba; Oko kukuthi, ukuwa ngexesha elithile lonyaka (ehlotyeni okanye ekwindla / ebusika), okungapheliyo (okuthetha ukuba bayawa kodwa ngokuthe ngcembe unyaka wonke), okanye kuphele ixesha, oko kukuthi, bawela kuphela.
Zininzi izityalo ezimile okomthi kodwa zingenjalo.. Umzekelo ocacileyo yimithi yesundu. Rhoqo, nasezincwadini zegadi, baya kukuxelela ukuba nayo le yimithi, kodwa abananto yakwenza nabo, ngenxa yesizathu "esilula" sokuba bazingxamile, hayi ii-dicot. Ithetha ntoni loo mazwi? Bucala ngasekhohlo:
- Monocot: xa ihluma, izithole zinecotyledon enye okanye igqabi lakudala. Ngaphandle koko, abanayo i-cambium, oko kuthetha ukuba abanako ukuqhubeka bekhula kubukhulu. Imizekelo: I-Asparagus, Pandanus, Pha, bulbous, kunye nazo zonke iintende, phakathi kwabanye.
- Iidikethi: zezo zithi xa zihluma zibe neebhotile ezimbini okanye nangaphezulu okanye amaphecana akudala. Banayo i-cambium, ngoko ke imiboko yabo inokukwazi ukujiya ukuya… kulungile, de kube yimfuza yabo ibaxelele 🙂. Imizekelo: yonke imithi, izihlahla, iinyibiba zamanzi, iCeratophyllum, iAmborella, njl.
Athini amalungu esiqu somthi?
Umfanekiso - izahlulo.com
Ngoku ekubeni sisazi kancinci malunga namaqela amabini aphambili ezityalo kunye neempawu zazo eziphambili, lixesha lokuba sifunde ngakumbi malunga nemithi. Iinxalenye zomboko wayo zezi zilandelayo:
- ICortexNgumaleko ongaphandle, kwaye nangona unzima, ububuthathaka kakhulu. Yenziwe ngumaleko wangaphakathi owenziwe ngeeseli eziphilayo, kwaye umaleko ongaphandle wenziwe ngeeseli ezifileyo.
- Cambiumngumaleko omncinci apho iiseli ezintsha zenziwe khona, ezivumela ukuba umthi ukhule kwaye ukhule unyaka nonyaka.
- Xylem: yaziwa ngokuba ngumthi womthi. Ngumaleko owenziwe ngumnatha weeseli ezinoxanduva lokuthwala amanzi kunye nezondlo ukusuka kwinkqubo yeengcambu ukuya kumasebe nakumagqabi. Ngumthi omncinci, uninzi, kunye noluthambileyo.
- IntliziyoYenziwe yi-xylem efileyo, oko kukuthi, ziiseli ezifileyo ezazenze i-xylem ngaphambili. Lo mthi ngowona unzima, kwaye ke unika inkxaso kunye namandla.
- Umongo: yindawo encinci yeseli ephilayo embindini womboko. Ngayo, izondlo ezibaluleke kakhulu ziyathuthwa. Ikhuselwe ngomthi onzima kakhulu.
- Imitha ye-medullary: yimitha ephuma emthini, nalapho kuthuthwa ngayo incindi.
Ndiyathemba ukuba ibikukunika umdla 🙂.