Gibberellin ni ubwoko bwa tetracyclic diterpene plant hormone, kandi imiterere yayo y'ibanze ni 20 karuboni gibberelline. Gibberellin, nk'umusemburo usanzwe ugenga imikurire y'ibimera ukora neza kandi ufite imiterere yagutse, igira uruhare runini mu kugenzura imikurire y'ibimera, amababi, indabyo n'imbuto.
Gukoresha gibberellin
►Breba aho imbuto zihagarara.
►Rgabanya imikurire y'ibimera.
►Ckugenzura igihe cyo kurabya.
►Pitandukaniro ry'indabyo z'abagabo za romote.
►Fkubungabunga imyanda.
Impamvu zitera guturika kw'imbuto
Gucika kw'imbuto ni ikintu kigaragara mu buryo butaringaniye mu miterere y'ibimera. Impamvu nyamukuru ni uko gukura kw'igishishwa kudashobora guhuza n'imikurire y'imbuto. Nyuma y'ubushakashatsi n'incamake by'abahanga, ibintu bigira ingaruka ku gucika kw'imbuto ni: igitutu cya turgor ku gishishwa, umuvuduko utaringaniye w'imikurire y'imbuto n'igishishwa, ubushyuhe bw'uruhu rw'imbuto n'imiterere y'uruhu rw'imbuto. Muri byo, igitutu cya pericarp cyagizweho ingaruka n'amazi n'ibiri muri gibberellin na aside abscisic; Ingufu za pericarp zagizweho ingaruka n'umubare wa kalisiyumu n'ibice by'urukuta rw'uturemangingo; Gucika kwa pericarp bigira ingaruka ku ngirabuzimafatizo yo kuruhuka k'urukuta rw'uturemangingo. Iyo igitutu cya pericarp kibyimbye, imbaraga za mashini n'ubunini bwa pericarp bitaringaniye, habaho gucika kw'imbuto.
Mu gihe cy'imvura, amazi menshi yongera umuvuduko w'igishishwa, bigatuma imbuto zicika. Mu mezi y'umuhengeri n'ay'imvura, imbuto zikura vuba kurusha igishishwa. Iyo igihe cy'imvura kigeze, ibimera byihutira kwinjiza amazi n'intungamubiri. Ubusumbane bw'umuvuduko w'ikura hagati y'imbuto na pericarp no kwiyongera k'umuvuduko w'ibyimbirwe bya pericarp bituma imbuto zicika. Gutera umwuka ku mbuto z'ibimera kugira ngo habeho uburyo bwo kuringaniza igishishwa cy'igishishwa n'amacupa bishobora gukumira gucika kw'imbuto.
Kuri ubu, inyandiko zimwe na zimwe n'inyandiko z'igerageza bigaragaza ko ubwo bwoko bwa surfactant bufite ingaruka nke ku buryo bwo guhuza ibintu ku buryo bwo gukura bwa gibberellin. Gushimangira mu buryo butari bwo ingaruka zo guhuza ibintu bizatuma ikiguzi cy'abahinzi kiyongera. Kubwibyo, turasaba ko guhuza ibintu bigenga gukura n'ibindi bivangwa bigomba guhuzwa mu buryo bwa siyansi hakurikijwe imiterere n'ibyo imboga n'imbuto zikenera mu byiciro bitandukanye by'iterambere.
Binyungu
♦Gufata agahu ku mababi cyangwa ku mbuto bishobora kugabanya gukaraba amazi y'imvura ku bintu bifatika nk'imiti igabanya ikura ry'ibimera n'imiti yica udukoko, birinda gukoresha kenshi no kugabanya ikiguzi.
♦Kora urwego rwo kurinda izuba ku buso bw'amababi n'ubw'imbuto, ugabanye neza ibyangiritse biterwa n'imirasire y'izuba n'imirasire y'izuba munsi y'izuba rishyushye, kandi ugire uruhare mu gufunga amazi no gukumira guhumeka.
♦Kuringaniza uburyo bwo kwagura imbuto n'igishishwa kugira ngo wirinde gucika.
♦Nyuma yo gutera umuti ugenzura ubwinshi bw'imbuto kugira ngo wongere ibara ry'imbuto, ushobora gutera umuti kugira ngo wongere igihe cyo gutanga imbuto.
♦Ihujwe n'abashinzwe kugenzura imikurire, itanga garanti ku mbuto n'imboga mu byiciro bitandukanye by'imikurire.
Igihe cyo kohereza: 15 Gashyantare 2022