Yiziphi izivundisi ezilawulayo zamaqabunga?
Lolu hlobo lomanyolo we-foliar luqukethe izinto ezilawula ukukhula kwezitshalo, njenge-auxin, amahomoni nezinye izithako.
Umsebenzi wawo omkhulu ukulawula ukukhula nokukhula kwezitshalo. Ilungele ukusetshenziswa ezigabeni zokuqala naphakathi zokukhula kwezitshalo.
Phakathi nenqubo yokukhula, izitshalo azikwazi nje ukuhlanganisa izakhi eziningi nezakhi, kodwa futhi zikhiqize ezinye izinto ezisebenza ngokomzimba, ezibizwa ngokuthi ama-hormone ezitshalo ezingapheli. Nakuba la ma-hormone ekhona ngamanani amancane ezitshalweni, angakwazi ukulawula nokulawula ukukhula okuvamile nokuthuthukiswa kwezitshalo, njengokukhula kwamangqamuzana nokuhlukaniswa, ukuhlukaniswa kwamaseli, ukwakhiwa kwezitho, i-dormancy kanye nokuhluma, i-tropism yezitshalo, ukuzwela, ukuvuthwa, ukuchithwa, ukuguga, njll., konke okulawulwa amahomoni ngokuqondile noma ngokungaqondile. Ezinye izinto eziphilayo ezihlanganiswe ngokwenziwa emafekthri anezinhlaka zamangqamuzana ezifanayo kanye nemiphumela yomzimba kumahomoni ezitshalo zemvelo zibizwa ngokuthi izilawuli zokukhula kwezitshalo.
Izilawuli zokukhula kwezitshalo namahomoni ezitshalo ngokuvamile abizwa ngokuthi abalawuli bokukhula kwezitshalo.
Njengamanje, izilawuli zokukhula kwezitshalo ezisetshenziswa kakhulu ekukhiqizeni ziyi
①Auxin:njenge-Naphthalene acetic acid (NAA), i-Indole-3-acetic acid, i-anti-drop agent, i-2,4-D, njll.;
②Gibberellic Acid:Kunezinhlobo eziningi ze-Gibberellic Acid compounds, kodwa i-Gibberellic Acid esetshenziswa ekukhiqizeni ikakhulukazi (i-GA3) ne-GA4, i-GA7, njll.;
③Ama-Cytokinins:njenge-5406;
④Ethylene:I-Ethephon;
⑤Ama-Plant growth inhibitors noma ama-retardants:I-Chlormequat Chloride (CCC), i-chlorambucil, i-Paclobutrazol (i-Paclo), ipulasitiki, njll. Ngaphezu kwalokhu okungenhla, kukhona i-Brassinolide (BRs), i-zeati, i-abscisic acid, i-defoliants, i-triacontanol, njll.
Umsebenzi wawo omkhulu ukulawula ukukhula nokukhula kwezitshalo. Ilungele ukusetshenziswa ezigabeni zokuqala naphakathi zokukhula kwezitshalo.
Phakathi nenqubo yokukhula, izitshalo azikwazi nje ukuhlanganisa izakhi eziningi nezakhi, kodwa futhi zikhiqize ezinye izinto ezisebenza ngokomzimba, ezibizwa ngokuthi ama-hormone ezitshalo ezingapheli. Nakuba la ma-hormone ekhona ngamanani amancane ezitshalweni, angakwazi ukulawula nokulawula ukukhula okuvamile nokuthuthukiswa kwezitshalo, njengokukhula kwamangqamuzana nokuhlukaniswa, ukuhlukaniswa kwamaseli, ukwakhiwa kwezitho, i-dormancy kanye nokuhluma, i-tropism yezitshalo, ukuzwela, ukuvuthwa, ukuchithwa, ukuguga, njll., konke okulawulwa amahomoni ngokuqondile noma ngokungaqondile. Ezinye izinto eziphilayo ezihlanganiswe ngokwenziwa emafekthri anezinhlaka zamangqamuzana ezifanayo kanye nemiphumela yomzimba kumahomoni ezitshalo zemvelo zibizwa ngokuthi izilawuli zokukhula kwezitshalo.
Izilawuli zokukhula kwezitshalo namahomoni ezitshalo ngokuvamile abizwa ngokuthi abalawuli bokukhula kwezitshalo.
Njengamanje, izilawuli zokukhula kwezitshalo ezisetshenziswa kakhulu ekukhiqizeni ziyi
①Auxin:njenge-Naphthalene acetic acid (NAA), i-Indole-3-acetic acid, i-anti-drop agent, i-2,4-D, njll.;
②Gibberellic Acid:Kunezinhlobo eziningi ze-Gibberellic Acid compounds, kodwa i-Gibberellic Acid esetshenziswa ekukhiqizeni ikakhulukazi (i-GA3) ne-GA4, i-GA7, njll.;
③Ama-Cytokinins:njenge-5406;
④Ethylene:I-Ethephon;
⑤Ama-Plant growth inhibitors noma ama-retardants:I-Chlormequat Chloride (CCC), i-chlorambucil, i-Paclobutrazol (i-Paclo), ipulasitiki, njll. Ngaphezu kwalokhu okungenhla, kukhona i-Brassinolide (BRs), i-zeati, i-abscisic acid, i-defoliants, i-triacontanol, njll.
