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1-Methylcyclopropene(efushanisiwe njenge-1-MCP) I-CAS 3100-04-7, iyinhlanganisela ye-molecule encane enesakhiwo esijikelezayo futhi isetshenziswa kabanzi emkhakheni wokugcinwa komkhiqizo wezolimo ngenxa yendima yayo eyingqayizivele ekulawuleni umzimba wezitshalo.

I-1-Methylcyclopropene (1-MCP) iyinhlanganisela enendlela yokusebenza eyingqayizivele futhi inezinhlelo zokusebenza ezibalulekile emikhakheni eminingi, ikakhulukazi kwezolimo nokongiwa kokudla. Okulandelayo yizinhlelo zayo eziyinhloko nemininingwane ehlobene:

Umkhakha wezolimo nokugcinwa kwezithelo

1. Vimbela umphumela we-ethylene futhi wandise isikhathi sokusha kwezithelo

Isimiso sesenzo: I-ethylene iyi-hormone eyinhloko yokuvuthwa kanye nokubonakala kwezithelo zezitshalo. I-1-MCP ingabopha ngendlela engenakuhlehliswa kuma-ethylene receptors, ivimbe ukudluliswa kwesignali ye-ethylene, futhi ngaleyo ndlela ibambezele ukuvuthwa, ukuthambisa kanye nezinqubo ze-senescence.

Izimo zohlelo lokusebenza:

Ukulondolozwa kwezithelo ezihlukahlukene: njengama-apula, amapheya, ubhanana, ama-kiwi, umango, ama-strawberries, njll. Ngokwesibonelo, uma ama-apula ephathwa nge-1-MCP ngemva kokukha, anganweba ngokuphawulekayo ukuphila kwawo kweshalofu esiqandisini noma ekamelweni lokushisa, futhi alondoloze ukuqina nokuthungwa kwenyama.

Lawula izifo eziphila ngemva kokuvuna: Yehlisa izinkinga ezifana ne-Browning kanye nokubola kwezithelo okubangelwa i-ethylene (njenge-black spot disease kubhanana).

Izinzuzo: Uma kuqhathaniswa nezinto ezivamile zokumunca i-ethylene (njenge-potassium permanganate),1-MCPinomphumela ohlala njalo futhi osebenza kahle, futhi idinga umthamo ophansi (imvamisa i-ppm embalwa).

2. Lawula ukuguga kwezimbali nezitshalo zokuhlobisa

Kusetshenziswa ekulondolozweni kwezimbali ezisikiwe: Nweba impilo yevazi yezimbali ezisikiwe njengama roses, ama-carnations neminduze, futhi ulibazise ukubuna nokubuna kwamacembe.

Ukuphatha izitshalo ezimbizeni: Vimbela ukuguga ngaphambi kwesikhathi kwezitshalo zokuhlobisa zasendlini (njenge-Phalaenopsis) futhi ugcine isimo sesitshalo esikhangayo.

Inkambu Yokulima Nokutshalwa Kwezitshalo

1. Lawula ukukhula nokukhula kwezitshalo

Ibambezela ukuguga kwemifino: Isetshenziselwa ukwelashwa kwangemva kokuvunwa kwemifino efana ne-broccoli nolethisi ukuze kugcinwe umbala wazo oluhlaza esimaradi nobusha.

Ukulawula ukungaguquguquki kokuvuthwa kwezitshalo: Ekutshalweni kwezithelo ezinjengotamatisi nopelepele, ukwelashwa kwe-1-MCP kwamukelwa ukwenza ukuvuthwa kwesithelo kube okufanayo, kube lula ukuvunwa kanye nokucubungula.

2. Yehlisa ukusabela kokucindezeleka kwezitshalo

Ukumelana nengcindezi okuthuthukisiwe: Ngaphansi kwengcindezi yezokuthutha noma yemvelo (njengamazinga okushisa aphezulu noma aphansi), kunciphisa ukuphendula kwengcindezi okubangelwa i-ethylene ezitshalweni, futhi kunciphisa ukuphuzi nokuwa kwamaqabunga.

Ezinye izinhlelo zokusebenza ezingaba khona

1. Ukwelashwa kwangaphambili embonini yokudla

I-1-Methylcyclopropene isetshenziselwa ukulondoloza izithelo ezisanda kusikwa (njengezingcezu ze-apula nezingcezu zamapheya), ukubambezela i-oxidation kanye ne-Browning, futhi andise impilo yeshalofu.

2. Ucwaningo lwesayensi nocwaningo lokuhlola

Njengenhlanganisela yethuluzi lokucwaninga indlela yokusebenza ye-ethylene, isetshenziswa ekuhlolweni kwe-plant physiology kanye nokuhlolwa kwebhayoloji yamangqamuzana ukuhlola indlela yokulawula yendlela yokubonisa i-ethylene.

Izinyathelo Zokusebenzisa

Isikhathi:1-Methylcyclopropenekufanele isetshenziswe ngaphambi kokukhululwa kwe-ethylene esithelweni noma esitshalweni (njengokushesha ngemva kokukha) ukuze kube nomphumela omuhle kakhulu. Uma isithelo singene esigabeni sekwephuzile sokuvuthwa, umphumela wokwelapha uzokwehla.

Ukulawulwa komthamo: Izitshalo ezihlukene zine-sensitito ehlukile ku-1-Methylcyclopropene 1-MCP (isibonelo, uhlobo lwesithelo olushintshashintshayo luzwela kakhulu). Ukugxiliswa kwesicelo kufanele kulungiswe ngokuvumelana nezinhlobonhlobo ukuze kugwenywe ukunambitheka kwezithelo okungavamile okubangelwa umthamo oweqile (njengo "powderization" wama-apula).

Izimo zemvelo: Ukwelashwa kufanele kwenziwe endaweni evaliwe (efana negumbi lokugcina elilawulwayo noma izikhwama zepulasitiki), njengoba izinga lokushisa kanye nomswakama kungathinta ukukhanga nokusebenza kahle kwe-1-MCP.

Njengamanje, ngicabanga ukuthi wonke umuntu uzobe esewucabangele umbuzo owodwa:

Ingabe ukusetshenziswa kwe-1-methylcyclopropene kuyingozi emzimbeni womuntu?

I-1-methylcyclopropene ayinabungozi emzimbeni womuntu ngaphansi kwezimo zokusetshenziswa ezifanele, futhi ukuphepha kwayo kuye kwaqashelwa izikhungo ezigunyaziwe zomhlaba wonke. Kungakhathaliseki ukuthi ubuthi obuyingozi, imiphumela yezempilo yesikhathi eside noma izingozi ezisalelayo, konke kungaphakathi kwebanga elamukelekayo. Abathengi akufanele bakhathazeke lapho besebenzisa imikhiqizo yezolimo ephathwe nge-1-MCP, futhi abaqhubi badinga kuphela ukulandela izinqubo zokuphepha ukuze bagweme ingcuphe yokuchayeka emsebenzini. Inzuzo eyinhloko yalobu buchwepheshe isekweluleni isikhathi sokusha kwemikhiqizo yezolimo ngezindlela zesayensi kunokwethula izingozi zokuphepha ezingaba khona.

Inani eliyinhloko le-1-methylcyclopropene lilele ekulawuleni ngokunembile imiphumela ye-physiological ye-ethylene ukuze kuzuzwe ukulondolozwa kwemikhiqizo yezolimo kanye nokuphathwa kokukhula kwezitshalo. I-1-methylcyclopropene isiphenduke indlela yobuchwepheshe ebalulekile yokwelashwa kwangemva kokuvuna kwezolimo zanamuhla, ikakhulukazi enezinzuzo ezibalulekile ekwandiseni isikhathi seshalofu kanye nokwenza ngcono izinga lezithelo nezimbali. Ikakhulukazi ehlobo, imvelo yokushisa ephezulu kanye nomswakama ophezulu ehlobo ingasheshisa kalula ukuchithwa kwezithelo. Ukulondolozwa kwesayensi kudinga ukwenza izinhlelo ezihambisana nezici zezithelo kanye nezici zemvelo.

Ikakhulukazi ehlobo, imvelo yokushisa ephezulu kanye nomswakama ophezulu ehlobo ingasheshisa kalula ukuchithwa kwezithelo. Ukulondolozwa kwesayensi kudinga ukwenza izinhlelo ezihambisana nezici zezithelo kanye nezici zemvelo. Singochwepheshe1-methylcyclopropene abahlinzeki. I-1-MCP powder iyisinqumo esihle kuwe.