Cov txheej txheem:
- Yuav ua li cas hu ua glumes?
- Dab tsi yog spikelet hauv botany?
- Yuav ua li cas yog tsob nroj floret?
- Rachilla hauv paj yog dab tsi?
- Nplej inflorescence (spike of spiklet)
2024 Tus sau: Simon Evans | [email protected]. Kawg hloov kho: 2024-01-13 03:51
Lub lodicules yog ob lub cev me me nyob nruab nrab ntawm lub lemma thiab zes qe menyuam hauv cov nyom floretuas, los ntawm kev nthuav dav sai thaum lub sijhawm anthesis, lever tseg cov tawv lemma cia anthers thiab stigmas tshwm sim.
Yuav ua li cas hu ua glumes?
Nyob rau hauv botany, glume yog a bract (nplooj zoo li qauv) hauv qab ib spikelet hauv inflorescence (paj pawg) ntawm nyom (Poaceae) lossis paj ntawm sedges (Cyperaceae). … Glumes tej zaum yuav zoo ib yam li cov lemmas, lub bracts ntawm lub hauv paus ntawm txhua floret.
Dab tsi yog spikelet hauv botany?
xwb. / (ˈspaɪklɪt) / npe. botany chav tsev ntawm nyom inflorescence, feem ntau muaj ob lub bracts (glumes) nyob ib puag ncig ib lossis ntau lub paj, txhua tus ntawm nws tus kheej nyob ib puag ncig los ntawm ob bracts Saib lemma 1, palea.me me inflorescence ntawm cov nroj tsuag ntawm lwm tsev neeg, esp lub sedges.
Yuav ua li cas yog tsob nroj floret?
Nyob hauv ntiaj teb cov nyom, ib lub paj yog ib paj me me uas tsis muaj paj, tsuas yog txiv neej thiab poj niam qhov chaw npog los ntawm bracts. Nyob rau hauv ib tug nyom spikelet, florets kab, ib tug tom qab lwm, nrog ib tug khub ntawm glumes ntawm lub hauv paus.
Rachilla hauv paj yog dab tsi?
Rachilla, racheola, theem nrab ntawm nplooj nplooj; lub axis ntawm ib tug spikelet ntawm nyom los yog sedge; hauv xibtes, ceg uas dais paj; (raws li Rhachilla, raws li Rhacheola) "ib tug thib ob axis nyob rau hauv lub inflorescence ntawm grasses" (Jackson); “ib tug me me los yog theem nrab rachis; tshwj xeeb lub axis ntawm ib tug spikelet ntawm ib tug nyom los yog sedge" …
Pom zoo:
Tylosis hauv botany yog dab tsi?
Nyob hauv cov ntoo ntoo, tylosis yog lub zais zis zoo li lub parenchyma cell rau hauv lub lumen ntawm cov hlab ntsha uas nyob ib sab. Lub sij hawm tylosis qhia txog cov txheej txheem physiological thiab qhov tshwm sim occlusion nyob rau hauv xylem ntawm ntoo ntoo raws li cov lus teb rau kev raug mob los yog kev tiv thaiv los ntawm lwj nyob rau hauv heartwood.
Dab tsi yog synangium hauv botany?
1: qhov peripheral ib feem ntawm cov hlab ntsha ntawm lub cev uas cov ceg ntoo tshwm nyob rau hauv qis vertebrate- piv pylangium. 2: ib tug sorus (raws li nyob rau hauv ferns ntawm tsev neeg Marattiaceae) ua los ntawm sporangia ntau sib koom los yog cohered rau hauv ib tug compound qauv .
Dab tsi yog cov yeeb yaj kiab dab tsi yog dax shepard hauv?
Dax Randall Shepard yog Asmeskas tus neeg ua yeeb yam, neeg tuaj dab ros, sau ntawv, tus thawj coj thiab tus tswv tsev podcast. Txij li xyoo 2018, nws tau tuav Armchair Expert, lub podcast uas xam phaj cov neeg nto moo, cov neeg sau xov xwm, thiab kev kawm txog lawv lub neej.
Dab tsi yog allopolyploidy hauv botany?
allopolyploid A polyploid kab mob, feem ntau yog ib tsob nroj, uas muaj ntau pawg chromosomes tau los ntawm ntau hom. Hybrids feem ntau tsis muaj menyuam, vim tias lawv tsis muaj cov chromosomes homologous thiab yog li kev ua khub tsis tuaj yeem tshwm sim .
Dab tsi yog sciophyte hauv botany?
: Ib tsob ntoo uas ua siab ntev lossis loj hlob zoo tshaj plaws ntawm kev siv qis qis . Heliophytes thiab Sciophyte nroj tsuag yog dab tsi? Heliophytes tseem hu ua hnub hlub nroj tsuag. Cov nroj tsuag no yuav tsum tau siv lub hnub ci siab rau kev loj hlob zoo.