Hom ntoo twg yog spruce?
Hom ntoo twg yog spruce?

Video: Hom ntoo twg yog spruce?

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

Ib tug spruce yog tsob ntoo ntawm genus Picea /pa?ˈsiː?/, ib tug genus ntawm txog 35 hom coniferous evergreen ntoo hauv tsev neeg. Pinaceae , pom nyob rau sab qaum teb temperate thiab boreal (taiga) cheeb tsam ntawm lub ntiaj teb.

Ib yam li ntawd, nws raug nug, yog tsob ntoo spruce yog tsob ntoo ntoo?

Spruce , fir thiab ntoo thuv yog tag nrho ib feem ntawm ib chav kawm tshwj xeeb ntawm tsob ntoo lub npe hu ua pinopsida. Pinopsida yog tib chav kawm nyob rau hauv conifer faib ntawm cov nroj tsuag; feem ntau conifers yog ntoo , txawm tias lawv tuaj yeem yog cov ntoo. Nyob rau hauv feem ntau conifers, nplooj yuav siv sij hawm ntev, nyias nqaim koob.

Ib sab saum toj no, cov ntoo spruce yuav loj hlob li cas? Txhua tsob ntoo spruce nqa txiv neej thiab poj niam cones. Cov poj niam lub cones loj muaj ovules, uas loj hlob mus rau hauv qe qe, los yog poj niam gametophytes. Rau yug me nyuam , cov txiv neej me me cia xoob nplej ntawm paj ntoos, uas yog txiv neej gametophytes. Cov paj ntoos taug kev ntawm qhov cua kom fertilize lub qe qe nyob rau hauv cov poj niam cones.

Ua li no, qhov txawv ntawm tsob ntoo fir thiab tsob ntoo spruce yog dab tsi?

Qhia spruce thiab cov ntoo sib nrug, nws pab kom paub qhov ntawd spruce koob yog sharply taw tes, square thiab yooj yim rau yob nruab nrab koj ntiv tes. Fir Cov koob, ntawm qhov tod tes, yog softer, tiaj tus thiab tsis tuaj yeem dov nruab nrab koj ntiv tes. Spruce koob yog txuas rau me me, stalk-zoo li woody projections.

Puas yog Spruce nyuaj dua li ntoo thuv?

Zuag qhia tag nrho, ntoo yog tej zaum cov zoo dua kev xaiv rau flooring. Nws muaj ntau tus cwj pwm, thiab tuaj yeem nkaum dents zoo dua spruce . Yog tias koj mus rau ib qho ntoo tsos, tab sis tseem yuav tsum tau durability, siv daj ntoo -- nws yog hais txog plaub zaug nyuaj dua mos ntoo.

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