Me me, txiv ntseej-ntsuab cones muab zais ntawm cov koob ntawm tsob ntoo sequoia. Lawv muaj txiaj ntsig tshwj xeeb rau kev nthuav tawm vim tias lawv muaj cov noob. Lawv kuj ua zaub mov rau tsiaj qus thiab tau nyiam cov neeg tshawb fawb ntev.
Sequoia cones zoo li cas thiab lawv nthuav tawm li cas?
Sequoia cones yog txiv ntseej-ntsuab, qe-zoo li lub cev xeeb tub uas muaj cov noob. Lawv loj hlob mus txog 8.5 cm ntev thiab 5.5 cm dav, ua woody nyob rau hauv lub caij nplooj zeeg thiab poob. Kev yug me nyuam tshwm sim los ntawm cua-los yog tsiaj-pab pollination thiab cov noob poob, tshwj xeeb tshaj yog thaum tshav kub kub thiab hav zoov hluav taws.
Kev tsim kho ntawm sequoia cone
Lub khob hliav qab ntawm tsob ntoo sequoia muaj cov khoom nram qab no:
- Length: mus txog 8.5cm
- Dav: mus txog 5.5 cm
- Shape: blunt thiab ovoid
- xim: txiv ntseej ntsuab, tom qab browning
- Quantity: 10,000 - 30,000 cones on a tree
- ntoo thiab poob rau lub caij nplooj zeeg
- tshwm sim ib leeg lossis hauv pab pawg
- upright loj hlob thaum lub sij hawm flowering
- tsheb log tsheb daig
Propagation los ntawm cones
Lub cones ntawm tsob ntoo sequoia muaj cov noob uas nws yug dua tshiab. Yuav kom nkag siab zoo dua cov noob tso tawm ntawm sequoia cone, nws ua rau kev nkag siab ua ntej saib nws cov qauv.
Tsim ib lub pob zeb sequoia
Ib tsob ntoo sequoia lub khob hliav qab muaj txog 25 lub khob hliav qab. Cov no yog teem rau hauv ib tug kauv thiab nqa lub ovules, uas nyob rau hauv lem yog teem nyob rau hauv ob kab. Lawv txoj hauj lwm yog tsim pollination drops uas Sequoiadendron giganteum reproduces (saib hauv qab). Cov pollination tee no tau muab zais tob rau hauv lub khob hliav qab.
Pollination thiab noob poob
tsob ntoo sequoia muaj ob lub ntuj pollination pab:
- cua
- thiab Douglas Squirrel
Ntawm ib sab, cov cones ntes paj ntoos uas cua nqa nrog lawv. Yog hais tias cov no ntaus cov pollination poob rau hauv lub khob hliav qab, fertilization yuav tshwm sim.
Ib yam li ntawd, Douglas squirrel, uas siv cov cones ua zaub mov, nqa cov noob ntawm tsob ntoo mus rau tsob ntoo.
Sequoiadendron giganteum kuj yog cov nroj tsuag monoecious. Qhov no txhais tau hais tias tsob ntoo muaj txiv neej thiab poj niam paj, yog li nws muaj peev xwm fertilize nws tus kheej.
Cov cones qhuav tawm ntawm qhov kub thiab txias. Qhov no ua rau lub ovules qhib thiab tso tawm cov khoom germination. Hav zoov hluav taws tshwj xeeb, uas tsis tshua muaj tshwm sim hauv Western America, lub tsev ntawm tsob ntoo sequoia, ua rau cov txheej txheem no. Nyob rau hauv rooj plaub no, cov tseem tsis paub qab hau, ntsuab cones kuj tso lawv cov noob. Txawm li cas los xij, qhov hluav taws kub muaj txiaj ntsig zoo rau kev loj hlob ntawm tsob ntoo sequoia sawv. Thaum cov tawv tawv tuab tiv thaiv lub cev, qhov hluav taws kub tshem tawm cov av thiab muab lub teeb txaus los ntawm kev tuag ntawm cov nroj tsuag nyob sib ze. Qhov no tsim cov xwm txheej zoo tshaj plaws rau germination ntawm cov noob poob.
Sequoia cones hauv kev tsom xam ntawm kev tshawb fawb
Yuav kom cov neeg tuaj yeem nce sequoia tsob ntoo, cov kws tshawb fawb sau lawv cov cones ntawm tsob ntoo. Tsob ntoo txiv hmab txiv ntoo, uas feem ntau tseem unripe, yog ces rhuab kom lawv qhib thiab tso cov noob. Ntawm qhov tod tes, cov noob tau siv rau kev sim ua kom tau txais cov ntaub ntawv meej ntxiv txog tsob ntoo loj, thiab ntawm qhov tod tes, lawv muaj muag lossis muag rau cov chaw zov me nyuam ntoo kom koj tuaj yeem txaus siab rau koj tus kheej tsob ntoo sequoia hauv koj lub tsev. vaj.
