Qhov sib txawv tseem ceeb ntawm stratification thiab scarification yog stratification yog lub tshuab uas cov noob muaj lub sij hawm ntub dej thiab txias rau induce germination. Meanwhile, scarification yog lub mechanism uas cov noob germination yog induced los ntawm tawg lub noob lub tsho tiv no.
Cov noob loj hlob mus rau hauv cov nroj tsuag ntawm cov txheej txheem hu ua noob germination. Txhawm rau germinate, cov noob xav tau qee yam mob xws li kub, dej, oxygen lossis cua thiab qee zaum lub teeb lossis tsaus. Kom txog rau thaum cov xwm txheej zoo, cov noob tseem nyob hauv dormancy. Stratification thiab scarification yog ob hom mechanisms uas induce noob germination los ntawm tawg lub noob dormancy. Nyob rau hauv stratification, cov noob tau muab tso rau hauv qhov chaw txias txias kom txhawb cov noob germination thiab rhuav tshem sab hauv. Nyob rau hauv scarification, lub noob lub tsho tiv no yog tawg los ntawm khawb los yog tshem tawm thiaj li kov yeej lub cev dormancy.
Dab tsi yog Stratification?
Stratification yog ib lub tswv yim uas pab kom kov yeej lub cev nqaij daim tawv ntawm cov noob. Hauv lwm lo lus, stratification pab kom tawg embryonic lossis sab hauv dormancy ntawm cov noob. Yog li ntawd, stratification yog hais txog cov txheej txheem uas cov noob tau muab tso rau hauv cov dej noo thiab txias rau ib lub sijhawm, txhawm rau txhawb cov noob germination. Ntawm no, qhov kub thiab txias plays lub luag haujlwm tseem ceeb hauv kev tawg dormancy ntawm cov noob. Nyob rau hauv txoj kev no, cov noob tau khaws cia hauv qhov kub ntawm 2 ° -4 ° C (36 ° -40 ° F) rau 6-8 lub lis piam. Yog li ntawd, kev kho mob khaub thuas, noo noo txhawb cov noob lub embryo kom loj hlob thiab nws thiaj li tawg los ntawm softened lub tsho tiv no. Qee cov noob tau khaws cia hauv av thaum lub caij ntuj no.
Daim duab 01: Cov noob stratified
Txawm li cas los xij, qee cov noob nyiam sov stratification. Nyob rau hauv sov stratification, noob muab tso rau hauv ib tug kub ntawm 15-20 ° C (59-68 ° F) mus txog rau thaum germination tshwm sim.
Dab tsi yog Scarification?
Cov noob pib tawg los ntawm kev nqus dej los ntawm cov av los ntawm lawv lub tsho loj. Peb hu qhov txheej txheem imbibition. Qee cov noob muaj tuab heev thiab tawv tiv thaiv lub tsho tiv no uas yog impermeable rau dej. Yog li ntawd, cov noob tsis germinate vim lub cev dormancy. Txhawm rau ua kom cov noob germination, lub tsho tiv no tuaj yeem raug tshem tawm lossis khawb.
Daim duab 02: Scarification
Txoj kev tshem tawm lossis khawb ntawm lub tsho tiv no los ua kom cov noob germination yog hu ua scarification. Qhov no tuaj yeem ua tiav hauv ntau txoj hauv kev. Lub tsho tiv no tuaj yeem khawb tau siv cov ntawv xuab zeb. Tsis tas li ntawd, ib qho kawg ntawm lub tsho tiv no tuaj yeem txiav. Ib qho tawg kuj tuaj yeem tsim nyob rau hauv cov noob. Tsis tas li ntawd, cov noob tuaj yeem soaked hauv sulfuric acid (tshuaj scarification).
Dab tsi yog qhov zoo sib xws ntawm Stratification thiab Scarification?
- Kev sib cais thiab kev ntshai yog ob hom kev ua haujlwm uas pab kom kov yeej cov noob dormancy.
- Ob txoj kev txhawb nqa noob germination.
- Lub sijhawm ntawm ob txoj hauv kev yog qhov tseem ceeb los xyuas kom meej tias ib puag ncig muaj txiaj ntsig zoo rau ob qho kev tshwm sim thiab ciaj sia ntawm cov yub.
Qhov txawv ntawm Stratification thiab Scarification yog dab tsi?
Stratification yog cov txheej txheem ntawm kev tso cov noob nyob rau hauv cov huab cua txias rau ib lub sijhawm tshwj xeeb txhawm rau txhawm rau kov yeej cov dormancy sab hauv thaum scarification yog cov txheej txheem ntawm khawb lossis tshem lub tsho tiv no kom kov yeej lub cev dormancy. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm stratification thiab scarification. Ntxiv mus, nyob rau hauv txias stratification, cov noob khaws cia nyob rau hauv ib tug kub ntawm 2 ° -4 ° C (36 ° -40 ° F) rau 6-8 lub lis piam, thaum nyob rau hauv sov stratification, noob muab tso rau hauv ib tug kub ntawm 15-20 ° C. C (59-68 ° F) kom txog thaum germination. Nyob rau hauv scarification, noob lub tsho tiv no yuav raug khawb siv coarse sandpaper, txiav los ntawm ib kawg siv ib tug riam, tsau nyob rau hauv sulfuric acid thiab ua ib tug tawg ntawm cov noob. Nyob rau hauv luv luv, stratification tsom rau qhov kev hloov ntawm qhov kub thiab txias thaum scarification tsom mus rau kev tawg ntawm lub hard impermeable noob tsho tiv no.
Los ntawm stratification, physiological dormancy tuaj yeem kov yeej thaum los ntawm scarification, lub cev dormancy tuaj yeem kov yeej. Tsis tas li ntawd, stratification tuaj yeem txias thiab sov thaum scarification tuaj yeem ua tshuab, tshuaj thiab thermal.
Hauv qab infographic qhia txog qhov sib txawv ntawm stratification thiab scarification.
Summary – Stratification vs Scarification
Stratification thiab scarification yog ob txoj kev uas ua rau cov noob germination. Stratification siv qhov kub thiab txias kom tawg dormancy, thaum scarification lov cov noob lub tsho tiv no, uas yog ib qho nyuaj thiab impermeable rau dej. Nyob rau hauv stratification, noob feem ntau yog muab tso rau hauv moist thiab txias tej yam kev mob los txhawb germination. Nyob rau hauv scarification, khawb los yog tshem tawm cov noob txheej yog ua tiav. Yog li, qhov no qhia txog qhov sib txawv ntawm stratification thiab scarification.
