Isilawuli sokukhula kwezityalo:S-abscisic acid

I-asidi ye-S-abscisic ineempembelelo ze-physiological ezifana nokubangela i-bud dormancy, ukuchithwa kwamagqabi kunye nokuthintela ukukhula kweeseli, kwaye yaziwa ngokuba yi-"dormant hormone".
Yafunyanwa malunga no-1960 kwaye yathiywa ngempazamo kuba yayinxulumene nokuwa kwamagqabi esityalo. Nangona kunjalo, ngoku kwaziwa ukuba ukuwa kwamagqabi ezityalo kunye neziqhamo kubangelwa yi-ethylene.

I-S-abscisic acid yimveliso eluhlaza ehambelana nokusingqongileyo,I-S-abscisic acid yinto yendalo yokukhula kwesityalo esebenzayo.
Le nto yendalo idla ngokufumaneka kwizityalo. Ngokwendalo ziqulethwe kwiziqhamo, imifuno kunye neenkozo ezityiwa ngabantu kwaye zikhuselekile ebantwini nakwindalo esingqongileyo.

Izinto ezisetyenziswayo kwinkqubo yokuvelisa i-abscisic acid yobugcisa zonke azinabungozi kwaye zingenabungozi kwiimveliso zezolimo kunye necala. Ifunyenwe nge-microbial fermentation, ngaphandle kokongezwa kwezinto ezinobungozi okanye izinto, kwaye akukho zinto ezinobuthi kwisakhiwo sayo sekhemikhali.

Ukusetyenziswa kwe-asidi ye-S-abscisic

I-1.S-abscisic acid yi-inhibitor esebenzayo yokuhluma kwembewu
I-asidi ye-S-abscisic ingasetyenziselwa ukugcina imbewu kunye nokugcina ukuntshula.

2. I-S-abscisic acid inokukhuthaza ukuqokelela kwezinto zokugcina kwimbewu kunye neziqhamo, ngokukodwa ukuqokelela iiprotheni zokugcina kunye noshukela.
Ukusebenzisa i-abscisic acid kumanqanaba okuqala okukhula kwembewu kunye neziqhamo kunokufikelela injongo yokwandisa isivuno sezityalo eziziinkozo kunye nemithi yeziqhamo.

3. I-asidi ye-S-abscisic inokwandisa ukuxhathisa kwezityalo ezibandayo kunye neqabaka.
I-asidi ye-S-abscisic ingasetyenziswa ukunceda izityalo ukumelana nobushushu obuphantsi kunye nomonakalo wokukhenkceza ekuqaleni kwentlakohlaza kwaye zilime iintlobo zezityalo ezitsha ezikwaziyo ukumelana nengqele.

4. I-S-abscisic acid inokuphucula ukumelana nesomiso kunye nokunyamezela ityuwa-alkali yezityalo.
I-asidi ye-S-abscisic inexabiso eliphezulu kakhulu lesicelo ekuncedeni abantu ukuba baxhathise iindawo ezisingqongileyo zembalela, ukuphuhlisa nokusebenzisa amasimi aphakathi kunye nesivuno esiphantsi, kunye nokugawulwa kwamahlathi.

5. I-S-abscisic acid yi-inhibitor eqinile yokukhula.
I-S-abscisic acid inokuthintela ukukhula kwezityalo ezipheleleyo okanye izitho ezizimeleyo. Impembelelo ye-ABA ekukhuleni kwezityalo ichasene ne-IAA, GA, kunye ne-CTK, kwaye inqanda ukwahlukana kweeseli kunye nobude. Ukuthintela ukwanda kunye nokukhula kwamalungu anje nge-bud sheaths, amasebe, iingcambu kunye ne-hypocotyls.

6. Ukusetyenziswa kwe-S-abscisic acid kwiintyatyambo zegadi
Ekubeni i-S-abscisic acid (ABA) inokuvala ngokukhawuleza i-pores ephambili yamagqabi, ingasetyenziselwa ukugcina iintyatyambo, ukwandisa ixesha leentyantyambo (umgaqo wokukhusela iintyatyambo), ukulawula ixesha leentyantyambo, kunye nokukhuthaza ukuhluma (i-horticultural regulation).

Indlela yokusebenzisa i-S-abscisic acid ngokudibeneyo
1. I-S-abscisic acid + auxin
Ikakhulu ikhuthaza ukuhluma kweengcambu kunye nokuncipha kwezithole emva kokutshintshwa kwezithole, okanye ukusika kwezithole, njl.

2. Ethylhexyl + S-abscisic acid, S-abscisic acid + gibberellin
Umsebenzi kukulawula ukukhula ngamandla kunye nokunyusa izinga lokumisela iziqhamo.

3. I-Anti-agonist + i-S-abscisic acid
Yandisa ukufunxwa kwezondlo, ukhuthaze ukukhula kwezithole, wandise isixa esipheleleyo sento eyomileyo, kwaye uphucule ukuxhathisa ingqele, ukumelana nembalela, ukumelana nezifo, kunye nokuxhathisa izinambuzane.