I-Gibberellin iwuhlobo lwe-tetracyclic diterpene plant hormone, futhi isakhiwo sayo esiyisisekelo yi-20 carbon gibberelline.I-Gibberellin, njenge-hormone elawula ukukhula kwezitshalo esebenza kahle kakhulu kanye ne-spectrum ebanzi, idlala indima ebalulekile ekulawuleni ukukhula kwezitshalo, amaqabunga, izimbali nezithelo.
Ukusetshenziswa kwe-gibberellin
►Bthola i-dormancy yembewu.
►Rlawula ukukhula kwezitshalo.
►Cukulawula isikhathi sokuqhakaza.
►Pi-romote male flower differentiation.
►Fukulondolozwa kwe-ruit.
Izimbangela zokuqhekeka kwezithelo
Ukuqhekeka kwezithelo kuyisimo sokungalingani komzimba wezitshalo.Isizathu esibalulekile ukuthi ukukhula kwekhasi akukwazi ukujwayela ukukhula kwe-pulp yesithelo.Ngemva kocwaningo kanye nesifinyezo sezazi, izici ezinethonya eziholela ekuqhekekeni kwezithelo yilezi: ingcindezi ye-turgor ecwecweni, izinga lokukhula elingaxhumene le-pulp nekhasi, ukunwebeka kwesikhumba sezithelo kanye nokwakheka kwesikhumba sezithelo.Phakathi kwabo, ukucindezela kokuvuvukala kwe-pericarp kwathinteka ngamanzi kanye nokuqukethwe kwe-gibberellin ne-abscisic acid;Amandla omshini we-pericarp athintwa okuqukethwe kwe-calcium nezingxenye zodonga lwamaseli;Ukwandiswa kwe-Pericarp kuthintwa isakhi sofuzo sokuphumuza udonga lweseli.Lapho ukucindezela kokuvuvukala, amandla omshini kanye nokwandiswa kwe-pericarp kungalingani, ukuqhekeka kwezithelo kwenzeka.
Ngenkathi yemvula, amanzi amaningi azokwandisa ukucindezela kokuvuvukala kwekhasi, okuholela ekuqhekekeni kwezithelo.Ezinyangeni ezomile nezina, isithelo sikhula ngokushesha kunekhasi.Lapho kufika inkathi yemvula, izitshalo zimunca ngokushesha amanzi nezakhamzimba.Ukungalingani kwezinga lokukhula phakathi kwezithelo kanye ne-pericarp kanye nokwanda kokucindezela kokuvuvukala kwe-pericarp kuholela ekuqhekekeni kwezithelo.Ukufafaza igesi esithelweni sezitshalo ukulinganisa uhlelo lokucindezela kwekhasi kanye ne-pulp kungavimbela ukuqhekeka kwezithelo.
Njengamanje, ezinye izincwadi namarekhodi okuhlola abonisa ukuthi lolu hlobo lwe-surfactant lunomphumela olinganiselwe we-synergistic kuzilawuli zokukhula kwe-gibberellin.Ukugcizelela ngobumpumputhe umphumela we-synergistic wezithasiselo kuzokwandisa izindleko zabalimi.Ngakho-ke, siphakamisa ukuthi inhlanganisela enengqondo yezilawuli zokukhula kanye nezithasiselo kufanele kuhlanganiswe ngokwesayensi ngokuya nezici nezidingo zemifino nezithelo ngezigaba zokukhula ezihlukene.
Benefit
♦Ukwakhiwa kwefilimu emaqabunga noma izithelo kunganciphisa ukukhucululwa kwamanzi emvula ezingxenyeni ezisebenzayo ezifana nezilawuli zokukhula nezibulala-sikhunta, gwema ukusetshenziswa okuphindaphindiwe futhi kunciphise izindleko.
♦Yakha ungqimba oluvikelayo lokuvikela ilanga endaweni yamaqabunga nangaphezulu kwezithelo, unciphise ngempumelelo umonakalo odalwe i-ultraviolet nokukhanya kwelanga ngaphansi kwelanga elishisayo, futhi udlale indima yokuvala amanzi kanye nokunqanda ukuphuma kwegazi.
♦Linganisa uhlelo lokunweba phakathi kwezithelo nekhasi ukuze uvimbele ukuqhekeka.
♦Ngemva kokufafaza isilawuli sokukhula sobuningi ukuze sithuthukise umbala wezithelo, singafafazwa ukuze kwandiswe isikhathi sokunikezwa kwezithelo.
♦Kuhlanganiswe nezilawuli zokukhula, kunikeza isiqinisekiso esiyindilinga sezithelo nemifino ezigabeni ezihlukene zokukhula.
Isikhathi sokuthumela: Feb-15-2022