Prohexadione calcium tuaj yeem txo pob ntseg qhov siab, txhim kho chaw nyob, thiab ua kom cov qoob loo hauv pob kws. Nws mechanism ntawm kev txiav txim thiab cov ntsiab lus tseem ceeb ntawm daim ntawv thov yog raws li nram no:
Mechanism ntawm Action
1. Inhibition of Gibberellin Synthesis: Prohexadione calcium selectively inhibits biosynthesis ntawm gibberellins (tshwj xeeb tshaj yog GA1) nyob rau hauv pob kws, yog li shortening internode ntev, txo cog qhov siab, thiab pob ntseg qhov siab.
2. Txhawb nqa hauv paus kev loj hlob thiab qia Vigor: Thaum inhibiting ntau vegetative txoj kev loj hlob, nws txhawb cov hauv paus kev loj hlob, txhim khu qia elasticity thiab hardness, thiab ho txhim kho qhov chaw tiv thaiv.
3. Tsis muaj Inhibition of Ear Development: Tsis zoo li qee qhov kev tswj hwm kev loj hlob ib txwm muaj, prohexadione calcium precisely lub hom phiaj qia elongation yam tsis cuam tshuam rau pob ntseg sib txawv thiab kev loj hlob nplej. Grain filling txhawb nqa paj tuav thiab nce qoob loo.
4. Txhim kho photosynthetic efficiency thiab kev ntxhov siab tsis kam: Nplooj yuav tsaus ntsuab thiab upright, txhawb nqa photosynthetic muaj peev xwm; ib txhij ntxiv dag zog rau kev tiv thaiv drought, kab mob tiv thaiv, thiab kev ntxhov siab.
Yield nce teebmeem:
1. Shortens basal internodes los ntawm 20% -30%, txo qhov kev pheej hmoo ntawm chaw nyob.
2. Ua kom cov qoob loo ntau dua ib pob ntseg los ntawm kwv yees li 8.7%, thiab nce ntau txhiab nplej hnyav los ntawm 6.3% (Cov ntaub ntawv tshawb fawb los ntawm Shandong Agricultural University).
3. Tso tseg tsis muaj residue, nyab xeeb rau cov qoob loo tom ntej, ua tau raws li cov kev cai ntawm kev ua liaj ua teb ntsuab thiab kev ua liaj ua teb organic.
