Cov txheej txheem:
- Ethephon thiab ethylene yog dab tsi?
- Ethephon ua haujlwm li cas ntawm paj rwb?
- Ethephon ua li cas?
- Puas yog ethephon lom rau tib neeg?
Video: Txhais li cas los ntawm ethephon?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Ethephon yog ib tsob nroj kev loj hlob regulator siv los txhawb cov txiv hmab txiv ntoo ripening, abscission, paj induction, thiab lwm yam lus teb. Ethephon tau sau npe siv rau ntau yam khoom noj, pub thiab qoob loo tsis yog zaub mov, tsev cog khoom cog, thiab cov nroj tsuag sab nraum zoov, tab sis yog siv feem ntau ntawm paj rwb.
Ethephon thiab ethylene yog dab tsi?
Ethephon yog tus kab mob cog kev loj hlob regulatorbelongs rau tsev neeg phosphonate. Nws yog nkag tau yooj yim los ntawm cov nroj tsuag thiab tso tawm ethylene uas yog ib tug natural nroj tsuag hormone. Ethylene cuam tshuam ncaj qha rau ntau yam kev ua haujlwm physiological (ripening, maturation thiab lwm yam) thiab txhawb kev tsim cov ethylene endogenous.
Ethephon ua haujlwm li cas ntawm paj rwb?
Paj Rwb yog ib qho tseem ceeb tshaj plaws siv qoob loo rau ethephon. Nws pib fruiting nyob rau lub sij hawm ntawm ob peb lub lis piam, txhawb nqa thaum ntxov concentrated boll qhib, thiab txhim kho defoliation los pab txhawb thiab txhim kho efficiency ntawm teem caij sau qoob. Cov paj rwb sau tau zoo dua qub.
Ethephon ua li cas?
Ethephon rhuav tshem rau hauv ethylene sai dua li pH nceQhov no txhais tau tias lub hom phiaj yog khaws cov pH ntawm cov tshuaj tsuag tom qab ntxiv ethephon rau koj cov dej nqa hauv qhov kev pom zoo ntawm 4 rau 5. Qhov no feem ntau tsis muaj teeb meem vim ethephon yog ib txwm acidic.
Puas yog ethephon lom rau tib neeg?
Kev soj ntsuam kev pheej hmoo ntawm tib neeg
Ethephon muaj peev xwm ua rau tawv nqaij thiab qhov muag khaus (Toxicity Category I), tab sis txwv tsis pub yog cov tshuaj lom nruab nrab. Ib qho tshuaj tua kab organophosphate, nws muaj peev xwm ua rau cholinesterase inhibition.
Pom zoo:
Puas qhov loj ntawm tus txiv neej txhais tes txhais li cas?
Ib tug txiv neej tes Size Hints at His Athletic Ability Cov txiv neej nrog ntiv nplhaib ntev dua txhais tes muaj zog dua, tsis hais lawv lub hnub nyoog thiab lub cev loj npaum li cas, ib pab pawg ntawm leej txiv-tus kws tshawb fawb pom. Ntau qhov kev tshawb fawb qhia txog qhov kev xav uas ntev ntiv tes txuas nrog kev ua kis las zoo tshaj thiab tag nrho lub zog .
Koj txhais li cas los ntawm kev txhais lus?
transitive verb.: to question (qee tus, xws li ib tug nom tswv txawv teb chaws) raug cai hais txog kev ua nom ua tswv lossis txoj cai lossis kev coj tus kheej . piv txwv piv txwv yog dab tsi? Piv txwv li, thaum tus nom tswv hais rau pawg neeg li ' pej xeem', lossis tus kws qhia ntawv hais ib chav kawm li 'cov tub ntxhais kawm', cov neeg nyob rau hauv cov xwm txheej no raug nug kom txais yuav.
Txhais li cas los ntawm kev rov qab los?
Muaj peev xwm lossis muaj peev xwm rov zoo regenerative txhais li cas? Regenerative txhais tau tias tuaj yeem lossis nyiam rov tsim dua -kom rov ua dua lossis rov ua dua tshiab lossis rov ua dua, tshwj xeeb tshaj yog tom qab raug puas lossis ploj.
Puas tib neeg hloov zuj zus los ntawm chimps vim li cas los yog vim li cas ho tsis?
Nws yog ib lo lus teb yooj yim: Tib neeg tsis tau hloov zuj zus los ntawm chimpanzees los yog lwm yam zoo kawg nkaus apes uas nyob niaj hnub no. Peb sib koom ib tug poj koob yawm txwv uas nyob kwv yees li 10 lab xyoo dhau los . Puas tib neeg hloov zuj zus los ntawm apes?
Los ntawm axis ntawm symmetry txhais?
Ib kab los ntawm ib sab kom txhua sab yog daim iav. Thaum cov duab yog folded nyob rau hauv ib nrab raws li axis ntawm symmetry, ces ob halves match up . Koj txhais li cas los ntawm axis ntawm symmetry? Lub axis ntawm symmetry ntawm parabola yog kab ntsug uas faib cov parabola rau hauv ob qhov sib xyaw ua ke.
