Gibberellic acid ga3 foliar txau txhawb nqa photorynthesis tiv thaiv nplooj thiab tiv thaiv kev laus ntxov thiab txuas ntxiv lub sijhawm sau qoob loo

①it muaj kev txhawb nqa tseem ceeb ntawm kev loj hlob ntawm cov noob qoob loo, nplooj hlav ntawm txiv neej kev loj hlob, thiab txuas ntxiv ntawm cov qoob loo txee.
②it muaj qhov cuam tshuam zoo ntawm kev rhuav cov dormancing ntawm cov noob qoob loo, tom qab buds, thiab tubers thiab txhawb kev germination.
③it tuaj yeem qeeb qeeb lossis tiv thaiv kev loj hlob thiab kev laus ntawm cov qoob loo. Ib qho ntxiv, rau cov teeb meem ntawm cov qoob loo dormant vim tias kub, lossis siv cov khoom tsis zoo vim yog ib puag ncig cov qoob loo kom tawg thaum ntxov thiab ua ntau cov paj zoo.