Cov txheej txheem:
Video: Dab tsi cuam tshuam rau dormancy thiab germination ntawm noob?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Zoo tshaj kub , lub teeb, pH, av noo thiab qhov tob faus ua lub luag haujlwm tseem ceeb hauv kev cog noob (Egley thiab Duke, 1985). Qhov cuam tshuam ntawm cov av noo ntawm kev cog qoob loo ntawm cov nroj tsuag yog nyob ntawm cov dej nag, kub , thiab hom av.
Tsis tas li ntawd, dab tsi yog qhov cuam tshuam rau cov noob dormancy?
Factors ntawm Seed Dormancy:
- kuv. Lub impermeability ntawm noob-coats rau dej:
- ii. Mechanically Resistant Noob Coats:
- iii. Noob-Coats Impermeable rau Oxygen:
- ib iv. Rudimentary Embryos:
- v. Dormant Embryos:
- ua vi. Germination Inhibitors:
Ib qho ntxiv, yam sab nraud cuam tshuam dab tsi rau kev cog noob? Qhov tseem ceeb tshaj plaws sab nraud muaj xws li dej, oxygen, haum kub , thiab qee zaum pom kev lossis tsaus ntuj. Ntau yam nroj tsuag xav tau ntau qhov sib txawv rau kev ua tiav cov noob zoo.
Los ntawm qhov ntawd, yam dab tsi cuam tshuam rau kev cog qoob loo ntawm cov noob?
Environmental yam xws li kub , lub teeb, pH, thiab av noo tau paub tias cuam tshuam rau kev cog qoob loo (Chachalis thiab Reddy 2000; Taylorson 1987). Kev faus tob ntawm cov noob kuj tseem cuam tshuam rau kev cog qoob loo thiab kev tshwm sim ntawm cov noob.
Peb yam dab tsi uas cuam tshuam txog kev muaj peev xwm ntawm cov noob?
Noob nyob ntev, muaj zog thiab muaj peev xwm nyob ntawm seb caj ces thiab lub cev yam tseem ceeb nrog rau kev khaws cia. Qhov tseem ceeb tshaj plaws uas cuam tshuam rau kev khaws cia yog kub , noo noo, cov yam ntxwv ntawm cov noob, micro-organism thaj chaw qhov chaw thiab cov qauv cia.
Pom zoo:
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Plaub pawg ntawm cov tshuaj psychoactive thiab dab tsi yog qhov cuam tshuam ntawm txhua tus?
Hallucinogens suav nrog LSD, mescaline, thiab ecstasy. Cov tshuaj no ua raws li kev cuam tshuam ntawm cov tshuaj xa xov serotonin thiab epinephrine, uas txo qhov mob. Muaj plaub hom tseem ceeb ntawm cov tshuaj psychoactive: Stimulants. Kev nyuaj siab. Narcotics. Hallucinogens
Lub ntsiab lus ntawm kev cuam tshuam thiab cuam tshuam yog dab tsi?
Feem ntau, koj yuav xav tau cuam tshuam raws li cov lus qhia lub ntsiab lus cuam tshuam rau qee yam thiab cuam tshuam rau qee yam uas tau cuam tshuam. Qhov sib txawv ntawm kev cuam tshuam thiab cuam tshuam yog li ntawd cov neeg tau pib siv 'cuam tshuam' raws li cov lus piav qhia
Dab tsi cuam tshuam qhov kub thiab txias muaj rau kev ua ntawm salivary amylase?
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Dab tsi yog x cuam tshuam hauv daim ntawv nqes hav cuam tshuam?
Peb tuaj yeem siv daim ntawv nqes hav-intercept (y = mx + b). Qhov kev cuam tshuam x yog pom los ntawm kev teeb tsa y = 0, vim qhov ntawd yuav ua rau peb x-tus nqi uas cov kab hla ntawm x-axis