I-0.03% i-S-abscisic acid (i-S-ABA) isisombululo samanzi silawula ngokufanelekileyo ukukhula kwerayisi, sikhuthaza ukuphuhliswa kweengcambu, ukwandisa ubunzima be-panicle, kunye nokunyusa isivuno. Ukunyuka kwesivuno esingqiniweyo esidlangalaleni sisuka malunga ne-7.8% ukuya kwi-11.1%, kunye neziphumo ezibaluleke ngakumbi ezibonwe phantsi kweemeko zoxinzelelo lwetyuwa.
IiNdlela ezingundoqo zokuSebenza
I-S-abscisic acid yaziwa ngokuba yi "growth-balancing factor" kunye ne "stress-resistance inducing factor" yerayisi. Imisebenzi yayo ephambili ibonakala ngeendlela ezimbini:
Umgaqo wokukhula: Ulungelelanisa i-endogenous hormone metabolism, ikhuthaza ukukhula kweengcambu, iphakamisa isakhono sezithole sokufunxa amanzi kunye nezondlo, kwaye ikhulise izithole ezomeleleyo. Ikwalungelelanisa ukukhula kwezityalo kunye nokuzala, ikhuthaza uphuhliso lwezihlakula ezinemveliso ngelixa inciphisa ezingavelisiyo.
Ukuqalisa ukuchasana noxinzelelo: Isebenza njengomthunywa obangela ukubonakaliswa kofuzo lokuxhathisa uxinezeleko, yenza kusebenze inkqubo yokhuselo lomzimba yesityalo serayisi. Oku kwandisa ukunyamezela imbalela, amaqondo obushushu aphezulu, ingqele, ityuwa, kunye nezifo, ngaloo ndlela kuthomalalisa uthintelo lokukhula olubangelwa yimo engqongileyo engalunganga kunye nokuqinisekisa izivuno ezizinzile.
Iimpembelelo ezithe ngqo ze-S-abscisic Acid kwi-Rice Roots kunye ne-Panicle Weight
Ukukhuthaza ukukhula kweeNgcambu: Ukufunxwa kwembewu phambi kokuhlwayelwa kukhuthaza ngokuthe ngqo ukukhula kweengcambu kwaye konyusa amandla okufunxa izondlo. Oku kunciphisa ixesha lokubuyisela emva kokutshintshwa, ukuvumela izithole ukuba zingene kwisigaba sokukhula esiqhelekileyo ngokukhawuleza. Ngaphantsi koxinzelelo lwetyuwa, igcina amandla eengcambu, iqinisekisa ukuthathwa kwezondlo okuqhubekayo.
Ukwandiswa kwe-Panicle Weight kunye neSivuno: Iphucula izinga lokumisela imbewu, inyusa i-1,000-grain weight, iyanciphisa i-spikelet degeneration, kwaye ikhulise ukuzaliswa kweenkozo, ekugqibeleni ikhokelela kwizivuno eziphezulu. Idatha yophando yoluntu ibonisa ukuba phantsi kweemeko eziqhelekileyo zokulima, ukusetyenziswa kwe-S-ABA kwirayisi ye-hybridi kunokunyusa isivuno nge-7.8% -11.1%. Kwiindawo ezigxininiswe ngetyuwa, kunciphisa kakhulu imiphumo yokuthintela ityuwa kwinani le-panicles evelisayo kunye nesantya sokumisela imbewu, ngaloo ndlela kugcinwe okanye ukwandisa isivuno-kunye nokunyuka okudlula i-14% kwezinye iimeko. Imiyalelo yokusebenzisa i-S-abscisic acid (yokulawula ukukhula kwerayisi)
Le mveliso isetyenziselwa ukufunxa imbewu yerayisi phambi kokuhlwayelwa. Nciphisa imveliso kwi-concentration ye-1: 750-1: 1000 njengoko kuchaziwe, kwaye ucofe imbewu kwiqondo lokushisa eliphantsi kweeyure ezingama-24-36, uqinisekise ukuba umgangatho wamanzi wanele ukuwafaka ngokupheleleyo. Emva kokucwina, hlambulula imbewu ngamanzi acocekileyo, emva koko uqhubeke nokuntshula okusemgangathweni kunye neenkqubo zokuhlwayela.
