Pom zoo cog cov kev loj hlob regulators rau txiv laum huab xeeb

I. Cov hom tseem ceeb thiab cov haujlwm ntawm cov nroj tsuag kev cai tswj hwm rau txiv laum huab xeeb


Thaum lub sij hawm germination ntawm txiv laum huab xeeb, cov nroj tsuag kev loj hlob regulators tuaj yeem tsoo cov noob dormancy thiab nrawm nrawm nrawm los ntawm kev tswj hwm qib endholious qib endogenous endogenous cov yam ntxwv zoo endogenous. Feem ntau siv cov tswj hwm suav nrog:

1. Gibbertellic acid (ga₃):
Txhawb nqa ntawm tes elongation thiab txhim kho germination muaj peev xwm. Cov kev pom zoo kom txog yog 50-100 mg / l, thiab germination tus nqi tuaj yeem nce los ntawm 15% -20% tom qab so rau 6-8 teev.

2. 1-naphyyl acetic acid (NAA):
Stimulates root sib txawv. Nws raug nquahu kom siv 10-20 mg / l

3. Sodium nitrophenolates (atonik):
Ib qho kev tswj hwm suav uas muaj ob qho germination nce qib thiab kev ntxhov siab tiv thaiv. Soak cov noob ntawm 0.3-0.5 mg / l rau 12 teev tuaj yeem txhim kho cov kev sib txuam ntawm germination los ntawm ntau dua 25%.



Ii. Cov ntsiab lus tseem ceeb rau kev siv cov khoom lag luam kev loj hlob

1. Tus tswj hwm qhov tseeb: Kev siv ntau dhau tuaj yeem ua rau muaj kev tawm tsam cov noob. Piv txwv li, gibberellic acid concentration tshaj 200 mg / l tej zaum yuav inhibit embryo kev loj hlob.

2. Co-kho cov txheej txheem:

- Kev sib xyaw ntawm gibbertellic acid + 6-ba (5 mg / l) tuaj yeem txhawb kev txhim kho ntawm buds thiab keeb kwm ib txhij;

- Nws raug nquahu kom ntxiv 0,% calcium chloride nyob rau hauv tsawg ib puag ncig ib puag ncig los txhim kho lub peev xwm tiv taus puas txias.

3. Ib puag ncig kev yoog raws:

- Nws raug nquahu kom siv 25 ℃ tas li kub rau germination ntawm lub caij nplooj ntoos hlav-sown txiv laum huab xeeb;

- Lub sijhawm soaking rau lub caij ntuj sov sowing yuav tsum tau ua kom luv rau 4-6 teev kom zam dhau qhov kub thiab txias ua rau cov noob rot.



III. Ceev faj thiab lwm yam

1. Cov roj ntsha eginate los yog humic acid tuaj yeem siv los hloov cov tshuaj uas muaj tshuaj lom neeg hauv cov organic cog, tab sis cov txiaj ntsig qeeb (soaking cov noob yuav tsum tau txuas ntxiv mus 24 teev).

2. Tom qab kev kho mob, cov noob yuav tsum tau muab yaug nrog dej huv 2-3 zaug. Residual regulators yuav inhibit seedling tshwm sim.

3. Rau cov noob qub, osmotic regulators (xws li peg-6000) yuav tsum tau siv ua ntej, thiab kev xav tau yuav tsum tau tswj hwm ntawm 5% -10%.