Qhov Tseem Ceeb Qhov txawv - Epigeal vs Hypogeal Germination
Germination yog txheej txheem uas cov noob tau txais kev loj hlob thiab dhau los ua cov nroj tsuag paub tab. Muaj ntau theem morphological thiab kev loj hlob ntawm cov txheej txheem germination. Tsim nyog qhov zoo ntawm qhov sov sov, noo noo nrog rau cov as-ham raug yog tsim nyog rau cov txheej txheem germination ntawm cov noob los tsim cov noob thiab thaum kawg ua kom loj hlob rau hauv cov nroj tsuag tshiab. Noob germination tuaj yeem muab faib ua ob hom tseem ceeb xws li Epigeal Germination ntawm cov noob thiab Hypogeal Germination ntawm cov noob. Qhov no categorization yog raws li cov kev taw qhia nyob rau hauv uas lub seedlings loj hlob raws li germination. Epigeal germination yog txheej txheem uas cov noob nplooj lossis cov cotyledons raug coj mus rau hauv av nrog rau kev tua thaum lub sij hawm germination. Hypogeal germination yog txheej txheem uas cov noob nplooj los yog cov cotyledons nyob hauv qab ntawm cov av thaum lub sij hawm germination. Qhov sib txawv tseem ceeb ntawm epigeal thiab hypogeal germination yog tias nyob rau hauv epigeal germination, lub hypocotyl ncua thiab cov cotyledons tawm hauv av thaum nyob rau hauv hypogeal germination lub epicotyl txuas mus, thiab cov cotyledons nyob rau hauv av.
Epigeal Germination yog dab tsi?
Nyob rau hauv cov txheej txheem ntawm epigeal germination, cov noob nplooj los yog cotyledons raug coj mus rau saum npoo nrog rau kev loj hlob ntawm tua. Qhov no feem ntau yog vim qhov nrawm nrawm ntawm hypocotyl ntawm cov nroj tsuag. Thaum lub sij hawm epigeal germination, lub hypocotyl loj hlob sai thiab nquag thiab ua nkhaus los yog curled nyob rau hauv tsos. Qhov kev hloov pauv hauv hypocotyl no tso cai rau cov noob nplooj lossis cov cotyledons tuaj rau saum av. Tom qab cov cotyledons raug coj mus rau saum npoo, cov hypocotyl straightens uas tom qab ntawd yuav ua rau cov noob qoob loo poob, thiab thaum kawg, cov cotyledons yuav tshwm ntsuab. Qhov tshwm sim epicotyl tom qab ntawd yuav pib nws theem kev loj hlob. Cov epicotyl thaum kawg yuav paub tab thiab ua rau cov nplooj ntsuab loj hlob tuaj, thiab cov cotyledons yuav poob.
Cov yam ntxwv tseem ceeb ntawm epigeal germination yog;
- Cov radicle tshwm sim thawj zaug los tsim cov hypocotyls.
- Lub plumule tsim lig.
- Tus hypocotyl pib ua ib lub voj thiab tom qab ntawd txuas mus.
- Cov cotyledons raug coj mus rau saum npoo thiab yog li tsim cov nplooj pib ua raws li kev tsim tawm.
Daim duab 01: Epigeal thiab Hypogeal Germination
Piv txwv rau cov noob qoob loo epigeal yog plumule albuminous noob (dos), dicotyledonous albuminous noob (castor), monocotyledonous exalbuminous noob (Alisma) thiab dicotyledonous exalbuminous noob (taum).
Hypogeal Germination yog dab tsi?
Thaum lub sijhawm hypogeal germination ntawm cov noob, cov cotyledons nyob hauv qab ntawm cov av. Qhov no yog vim kev loj hlob sai thiab elongation ntawm epicotyl. Lub epicotyl pib tsim, thiab tom qab ntawd nws elongates, ua raws li curling thiab ua tiav cov qauv nkhaus. Yog li ntawd, nyob rau hauv thaum ntxov txoj kev loj hlob ntawm lub plumule nws emerges saum toj no cov av nto. Qhov no ua rau cov cotyledons nyob hauv qab ntawm cov av. Lub plumule elongates ceev ceev nyob rau hauv cov ntaub ntawv ntawm hypogeal germination, thiab lub plumule ruptures lub coleoptile thiab undergoes kev loj hlob ntxiv. Lub ruptured plumule hlob mus rau lub radicle thiab yog hloov los ntawm lub hauv paus system.
Lub ntsiab nta ntawm hypogeal germination yog;
- Nws yog hom kev cog qoob loo hauv thaj chaw uas cov cotyledons nyob hauv av.
- Cov radicle tsim los tsim cov hauv paus system.
- Lub plumule txhim kho mus rau hauv kev tua.
Piv txwv ntawm hypogeal germination yog monocotyledonous exalbuminous noob (arum), dicotyledonous exalbuminous noob (gram, pea), monocotyledonous albuminous noob (dej lily) thiab monocotyledonous albuminous noob (pobkws).
Dab tsi zoo sib xws ntawm Epigeal thiab Hypogeal Germination?
- ob leeg yog hom germination ntawm noob.
- Ob leeg yog nyob ntawm kev coj ntawm cotyledon.
Qhov txawv ntawm Epigeal thiab Hypogeal Germination yog dab tsi?
YEpigeal vs Hypogeal Germination |
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| Epigeal germination yog txheej txheem uas cov noob nplooj lossis cov cotyledons raug coj los rau saum npoo nrog rau kev tua thaum lub sijhawm germination. | Hypogeal germination yog txheej txheem uas cov noob nplooj lossis cov cotyledons nyob hauv qab cov av saum npoo thaum germination. |
| Structure shows a greater Elongation | |
| Cov hypocotyl yog elongated hauv epigeal germination. | Epicotyl yog elongated hauv hypogeal germination. |
| curling | |
| Lub davhlau ya nyob twg ntawm hypocotyl yog nkhaus los tiv thaiv cov cotyledon hauv epigeal germination. | Lub davhlau ya nyob twg ntawm epicotyl yog nkhaus los tiv thaiv plumule los ntawm hypogeal germination. |
Summary – Epigeal vs Hypogeal Germination
noob germination yog ib qho tseem ceeb thiab txheej txheem tseem ceeb hauv kev tsim cov nroj tsuag. Muaj ob txoj hauv kev uas cov noob germination yuav siv qhov chaw uas yog, epigeal germination thiab hypogeal germination. Cov no nyob ntawm txoj hauj lwm cotyledon nyob rau hauv thawj txoj kev loj hlob. Nyob rau hauv lub epigeal germination, cov cotyledons yog coj los saum toj no cov av qhov chaw nyob rau hauv hypogeal germination lub cotyledons nyob twj ywm nyob rau hauv cov av. Qhov no yog qhov txawv ntawm epigeal thiab hypogeal germination.
Download the PDF Epigeal vs Hypogeal Germination
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li daim ntawv ceeb toom. Thov download PDF version ntawm no Qhov txawv Ntawm Epigeal thiab Hypogeal Germination
