Qhov sib txawv tseem ceeb ntawm pinnate thiab palmate yog qhov pinnate yog cov qauv venation nyob rau hauv uas ib txoj hlab ntsha loj txuas ntawm lub hauv paus mus rau sab saum toj ntawm nplooj thiab cov leeg me me tshwm sim los ntawm cov leeg tseem ceeb whereas lub palmate yog cov qauv venation. nyob rau hauv uas ob peb lub ntsiab veins radiate los ntawm ib tug taw tes uas petiole thiab nplooj hniav sib sau ua ke.
Venation yog ib qho tseem ceeb ntawm cov nplooj uas siv tau los txheeb xyuas cov nroj tsuag. Nws yog qhov kev npaj ntawm cov leeg (thawj, theem nrab thiab qib thib ob) hauv cov nplooj ntoo. Lub hauv paus los yog lub ntsiab hlab ntsha yog ib qho nruab nrab tseem ceeb leeg. Cov hlab ntsha uas tshwm sim los ntawm thawj cov hlab ntsha yog cov hlab ntsha thib ob. Thawj cov hlab ntsha zoo li lub cev ntawm tsob ntoo thaum cov hlab ntsha thib ob yog cov ceg ntawm tib tsob ntoo. Cov hlab ntsha ntawm nplooj tuaj yeem teem caij sib txawv. Yog li ntawd, parallel, pinnate thiab palmate yog peb hom.
Pinnate yog dab tsi?
Pinnate venation yog ib qho ntawm cov qauv venation uas pom los ntawm cov nroj tsuag. Ib txoj hlab ntsha loj txuas ntawm lub hauv paus ntawm nplooj mus rau saum nplooj. Secondary veins yog branching tawm ntawm thawj cov hlab ntsha. Pinnately compound nplooj muaj nplooj ntawv tshwm sim los ntawm ob sab ntawm rachis.
Daim duab 01: Pinnate Venation
Tsis tas li ntawd, muaj ob hom pinnately compound nplooj uas yog khib-pinnate thiab txawm-pinnate. Yog hais tias ib tug pinnately compound nplooj muaj ib tug davhlau ya nyob twg leaflet, nws muaj ib tug khib cov nplooj ntawv. Tom qab ntawd peb hu nws qhov khib-pinnate. Yog hais tias nws muaj tus naj npawb ntawm nplooj ntawv, peb hu nws ua tus pinnate. Ntau lub xibtes, ferns thiab feem ntau cycads qhia pinnate venation thiab pinnate nplooj.
Palmate yog dab tsi?
Palmate yog cov qauv venation uas muaj ob peb lub ntsiab leeg tawm sab nraud ntawm lub hauv paus ntawm nplooj. Cov qauv no zoo ib yam li tsib ntiv tes uas nthuav tawm ntawm peb txhais tes. Cov hlab ntsha tseem ceeb yog kwv yees sib npaug ntawm qhov loj. Thiab lawv sib txawv ntawm ib qho chaw uas nplooj nplooj thiab petiole sib sau ua ke.
Daim duab 02: Palmate Venation
Feem ntau, cov nplooj nplooj ntoo muaj cov lobes tawg ntawm ib qho taw tes. Lawv cov kab mob tseem ceeb tuaj yeem sib txawv. Tab sis lawv qhia cov qauv zoo sib xws zoo li lub xib teg ntawm tes. Nyob rau hauv palmately compound nplooj, muaj ob peb nplooj ntawv tshwm sim los ntawm tib lub ntsiab lus nyob rau sab saum toj ntawm petiole. Cov ntawv sau ua ke ua ke mus rau qhov taw tes.
Qhov Zoo sib xws ntawm Pinnate thiab Palmate yog dab tsi?
- Pinnate thiab palmate yog ob hom kev sib txawv.
- Ob leeg tseem ceeb hauv kev txheeb xyuas cov nroj tsuag.
- Muaj pinnately compound thiab palmately compound nplooj.
- Ntxiv rau, kuj tseem muaj pinnate thiab palmate yooj yim nplooj.
Qhov txawv ntawm Pinnate thiab Palmate yog dab tsi?
Kev npaj ntawm thawj, theem nrab thiab qib thib ob ntawm nplooj ntawv yog hu ua venation. Pinnate thiab palmate yog ob qho qauv venation. Nyob rau hauv pinnate venation, ib leeg lub ntsiab leeg txuas los ntawm lub hauv paus mus rau sab saum toj ntawm nplooj thiab cov hlab ntsha theem nrab branching tawm raws cov hlab ntsha loj. Hauv palmate venation, muaj ntau cov hlab ntsha tseem ceeb tshwm sim los ntawm ib qho chaw uas nplooj nplooj thiab petiole sib sau ua ke. Qhov no yog qhov sib txawv tseem ceeb ntawm pinnate thiab palmate. Ntxiv mus, lub palmate venation tsis pom cov hlab ntsha theem nrab branching los ntawm thawj cov leeg.
Summary – Pinnate vs Palmate
Pinnate thiab palmate yog ob hom venation qauv. Raws li cov qauv venation, nplooj tuaj yeem yog pinnate lossis palmate thiab. Hauv cov qauv pinnate, tsuas yog ib txoj hlab ntsha tseem ceeb nyob ntawd thaum nyob rau hauv palmate patter peb lossis ntau cov leeg tseem ceeb tuaj yeem tshwm sim. Pinnate venation qhia tau hais tias tus qauv zoo li feather thaum palmate venation qhia tau hais tias tus qauv zoo li xibtes. Qhov no yog qhov txawv ntawm pinnate thiab palmate.
