Qhov sib txawv tseem ceeb ntawm involucral bract calyx thiab indumentum yog involucral bract yog lub bract uas tshwm nyob rau hauv lub whorl thaum calyx yog sau ntawm sepals thiab indumentum yog saum npoo npog muaj li ntawm cov plaub hau los yog trichomes nyob rau hauv cov nroj tsuag.
Bract, calyx thiab indumentum yog peb feem ntawm cov nroj tsuag. Lub involucral bract yog qhov pom tseeb ntawm bract lossis lub ntsej muag ntawm bract pom ntawm lub hauv paus ntawm inflorescence. Calyx yog sau los ntawm sepals ntawm paj. Indumentum yog cov plaub hau npog ntawm cov nroj tsuag. Tag nrho peb ntu yog qhov tseem ceeb rau cov nroj tsuag, thiab lawv ua haujlwm ntau hauv cov nroj tsuag.
Involucral Bract yog dab tsi?
Involucral bract yog qhov pom tseeb ntawm bract lossis whorl ntawm bracts tam sim no ntawm lub hauv paus ntawm inflorescence. Lub bract uas tam sim no nyob rau hauv daim ntawv ntawm ib tug whorl yog hu ua lub involucral bract. Nws yog nplooj ntoo. Txhua tus neeg lub paj ntawm inflorescence muaj nws tus kheej involucel. Involucral bract yog ib hom ntawm ntau tsev neeg ntawm paj ntoo xws li Asteraceae, Apiaceae, Euphorbiaceae thiab Proteaceae.
Daim duab 01: Involucral Bract
Involucral bract yog tus yam ntxwv zoo uas tuaj yeem siv los paub qhov txawv ntawm cov paj ntoo. Tsis tas li ntawd, nws tiv thaiv cov noob txiv ntoo.
Calyx yog dab tsi?
Calyx yog cov sau sepals. Nws yog qhov sab nraud ntawm lub paj. Calyx zoo li nplooj vim tias feem ntau cov paj ntoo muaj xim ntsuab sepals. Txawm li cas los xij, qee cov paj muaj cov xim zoo nkauj zoo nkauj. Ci ntsa iab calyx qee zaum ua haujlwm zoo li cov paj kom nyiam cov paj ntoos. Hauv qee cov nroj tsuag, sepals nyob sib cais. Tab sis qee cov nroj tsuag tau marginally fused sepals.
Daim duab 02: Colouful calyx ntawm Abutilon
Feem ntau, tus naj npawb ntawm calyx lobes yog sib npaug ntawm cov fused sepals. Lub luag haujlwm tseem ceeb ntawm calyx yog los tiv thaiv lub paj tsis qhib. Tsis zoo li petals thiab stamens, lub calyx yog pheej yig. Nws tuaj yeem pom txawm nyob hauv txiv hmab txiv ntoo.
Indumentum yog dab tsi?
Indumentum yog cov plaub hau npog ntawm cov nroj tsuag. Nws tuaj yeem suav nrog trichomes. Indumentum tuaj yeem pom nyob rau hauv qab ntawm nplooj. Indumentums tuaj yeem pom nyob rau hauv stems thiab petioles. Kev muaj lossis tsis muaj ib qho indumentum yog ib qho kev cog qoob loo siv hauv kev txheeb xyuas cov nroj tsuag.
Daim duab 03: Indumentum
Indumentum ua tiav ntau lub luag haujlwm hauv cov nroj tsuag. Nws ua raws li ib tug anchorage nyob rau hauv nce toj nroj tsuag. Tsis tas li ntawd, nws tiv thaiv kev kis kab mob thiab pab hauv kev nqus dej. Nws kuj tiv thaiv cov nroj tsuag los ntawm kab predators. Qhov tseem ceeb tshaj plaws, hauv qee cov nroj tsuag, indumentum pab txhawm rau tua kab.
Dab tsi yog qhov zoo sib xws ntawm Involucral Bract Calyx thiab Indumentum?
- Involucral bract, calyx thiab indumentum yog peb feem ntawm cov nroj tsuag.
- Tag nrho peb cov qauv muaj txiaj ntsig zoo rau cov nroj tsuag.
Qhov txawv ntawm Involucral Bract Calyx thiab Indumentum yog dab tsi?
Involucral bract yog lub ntsej muag ntawm cov bracts tam sim no ntawm lub hauv paus ntawm inflorescence thaum calyx yog sau ntawm sepals ntawm paj. Indumentum, ntawm qhov tod tes, yog qhov npog ntawm cov plaub hau lossis trichomes hauv cov nroj tsuag. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm involucral bracts calyx thiab indumentum.
Ntxiv mus, involucral bract tiv thaiv cov noob txiv ntoo, thaum calyx tiv thaiv lub paj tsis tau qhib, thiab indumentum tswj kev hloov pauv, dej nqus, muab kev thauj mus los, thiab lwm yam. Yog li, qhov no yog qhov sib txawv ntawm involucral bracts calyx thiab indumentum.
Summary – Involucral Bracts Calyx vs Indumentum
Involucral bract yog ib lub bract teem nyob rau hauv ib tug whorl ntawm lub hauv paus ntawm inflorescence. Nws tiv thaiv cov noob txiv ntoo. Calyx yog sau los ntawm sepals ntawm paj. Nws tiv thaiv lub paj tsis tau qhib. Indumentum yog cov plaub hau npog ntawm cov nroj tsuag. Nws tswj transpiration, dej nqus. Nws kuj ua raws li ib tug anchorage rau nce toj nroj tsuag. Yog li, qhov no qhia txog qhov sib txawv ntawm involucral bract calyx thiab indumentum.
