Cov ntoo twg muaj Serotinous cones?
Cov ntoo twg muaj Serotinous cones?

Video: Cov ntoo twg muaj Serotinous cones?

Video: Cov ntoo twg muaj Serotinous cones?
Video: Leejtwg Yog Tus Tsim (Official Music Video 2023) N. Vajxob, Nxf. Tshuav Num, N. Txoov Kav 2024, Kaum ib hlis
Anonim

Cov ntoo uas muaj serotinous tenancy nyob rau hauv North America muaj xws li ib co hom ntawm conifers nrog rau ntoo , spruce, cypress, thiab sequoia. Cov ntoo Serotinous nyob rau sab qab teb hemisphere suav nrog qee qhov angiosperms zoo li eucalyptus hauv qhov hluav taws kub ntawm Australia thiab South Africa.

Tsis tas li ntawd, Serotinous cones yog dab tsi?

Jack pine tau tsim qhov hu ua a Serotinous lub khob hliav qab . Serotinous cones yog them nrog ib tug resin uas yuav tsum tau melled rau lub khob khob qhib thiab tso cov noob. Thaum hluav taws txav los ntawm hav zoov, lub cones qhib thiab cov noob raug faib los ntawm cua thiab lub ntiajteb txawj nqus.

Tsis tas li ntawd, cov ntoo thuv puas muaj Serotinous cones? Ponderosa pines yog tsis yoog rau qhov hluav taws kub hnyav Lawv yog tsis zoo yoog kom rov tsim dua tshiab hauv thaj ua rau thaj tsam loj ntawm hluav taws kub hnyav vim lawv yog tsis yog hom sprouting thiab ua tsis yog muaj serotinous cones los yog ntev-nyob av seedbanks.

Ib sab saum toj no, hom ntoo twg yog qhov tseem ceeb rau Serotinous cones uas tsuas yog qhib tom qab hluav taws kub hav zoov?

Lodgepole pines, ubiquitous thoob plaws ntau ntawm Sab Hnub Poob, yog ib qho ntawm thawj hom loj hlob tom qab hluav taws vim lawv Serotinous cones.

Dab tsi ua rau lub cones los ntawm lodgepole ntoo thuv kom poob nws cov noob?

Qhov no khob khob tuaj yeem nyob hauv tsob ntoo ceg ntoo rau xyoo lawm, kom txog rau thaum lub tshav kub ntawm ib tug hla hluav taws melts lub resin uas seals nws thiab tso cai rau lub khob khob qhib, poob nws cov noob . Rau sab laug yog tus paub tab lodgepole ntoo hav zoov. Lub canopy tau kaw, thaiv lub hnub ci thiab tiv thaiv cov tshiab ntoo los ntawm kev loj hlob.

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