Imiphumela evamile ye-brassinolide nokusebenzisa izinyathelo zokuphepha

Eminyakeni yamuva nje, i-brassinolide, njengohlobo olusha lokulawula ukukhula kwezitshalo, isetshenziswe kabanzi ekukhiqizweni kwezolimo, futhi umphumela wayo womlingo wokwandisa isivuno uye wathandwa abalimi.

I-Brassinolide ayiyona into eyodwa, kodwa igama elivamile lesigaba samahomoni ezitshalo ze-steroidal. Akhona ngamanani amancane kakhulu ezitshalweni, kodwa adlala indima ebalulekile yokulawula ekukhuleni nasekuthuthukeni kwezitshalo. Njengamanje, kunezinhlobo ezingaphezu kuka-70 ezaziwayo ze-brassinolide, phakathi kwazo i-24-epibrassinolide, 28-homobrassinolide, 28-epihomobrassinolide, njll. Nakuba zonke zingeze-brassinolide, ngenxa yomehluko ocashile ekwakhekeni kwamakhemikhali, imiphumela yazo ekukhuthazeni ukukhula, ukumelana nokucindezeleka, nokwanda kwesivuno kunokugxila okuhlukile.

Izinhlobo ezahlukene ze-brassinolide zinemiphumela ehlukene

Thatha ama-brassinolide amaningana ajwayelekile njengezibonelo:
24-epibrassinolide:
Ukugxila ekukhuthazeni ukukhula kwezimpande kanye nokuthuthukisa ukumelana nezitshalo, ikakhulukazi ngaphansi kwezimo ezimbi njengesomiso nosawoti, kungathuthukisa ngempumelelo izinga lokusinda kanye nesivuno sezitshalo. Ingashukumisa ukwehlukana kanye nokwelulwa kwamaseli ezimpande, yandise indawo engaphezulu kwempande, futhi ithuthukise amandla okumunca amanzi nezakhamzimba. Ezitshalweni ezisesigabeni sezithombo, ukusetshenziswa kwe-24-epibrassinolide kungakhuthaza ukukhula ngokushesha kwezimpande futhi kubeke isisekelo esiqinile sokukhula kamuva.

28-homobrassinolide:
Isebenza ngokuyinhloko ekukhuleni kweziqu zezitshalo namaqabunga, ikhuthaza ukuhlukana kwamangqamuzana nokwelula, yenza izitshalo zibe namandla, amaqabunga abe mkhulu futhi abe mkhulu, ngaleyo ndlela athuthukise ukusebenza kahle kwe-photosynthetic. Kungaphinde kugqugquzele ukukhula kwezithelo, kwandise isivuno kanye nekhwalithi. Isetshenziswa kabanzi ezitshalweni ezifana nemifino nezithelo, futhi ingakhuphula kakhulu isivuno kanye nenani lempahla.

28-epihomobrassinolide:
Inemiphumela emibili yokukhuthaza ukukhula kanye nokuthuthukisa ukumelana nokucindezeleka. Akukwazi nje ukukhuthaza ukukhula kwesiqu namaqabunga, kodwa futhi kuthuthukise ukumelana kwezitshalo ezindaweni ezimbi. Ngenkathi ithuthukisa isivuno nekhwalithi yezitshalo, ingaphinda ithuthukise amandla ezitshalo ukumelana nezifo nezinambuzane, inciphise ukusetshenziswa kwezibulala-zinambuzane, futhi ihambisane nesiqondiso sentuthuko yezolimo eluhlaza.

Ukusetshenziswa kwesayensi kungafinyelela izinzuzo ezinkulu kakhulu
Izindlela zokufaka i-Brassinolide ngokuyinhloko ukufafaza ngamaqabunga kanye nokuchelela ngezimpande zomhlabathi. Ukufafaza kwe-Foliar kudonsa ngokushesha futhi kuba nomphumela osheshayo, ofanele izimo lapho ukondliwa okunomsoco ngokushesha kuyadingeka noma ukubhekana nobunzima obungazelelwe. Ukuchelela kwezimpande zomhlabathi kudonsa kancane futhi kunomphumela ohlala isikhathi eside, ofanele ukukhuthaza ukukhula kwezimpande kanye nokwenza ngcono ukuphikiswa kokucindezeleka okuphelele kwezitshalo.

Ukukhetha indlela yokufaka isicelo kuncike ohlotsheni lwesitshalo, isigaba sokukhula kanye nezidingo ezithile. Isibonelo, ezitshalweni ezisesigabeni sezithombo, ukuchelela kwezimpande zomhlabathi kungasetshenziswa ukukhuthaza ukukhula kwezimpande; ezitshalweni ngesikhathi sokukhula okunamandla, ukufafaza kwamaqabunga kungasetshenziswa ukukhuthaza ukukhula kwesiqu namaqabunga kanye nokukhulisa izithelo; ezitshalweni ezihlushwa izinambuzane nezifo noma ubunzima, ukufafaza ngamahlamvu kungasetshenziswa ukwengeza ngokushesha ukudla okunomsoco futhi kuthuthukise ukumelana nokucindezeleka.