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1-Methylcyclopropene(efinyeziweyo njenge-1-MCP) i-CAS 3100-04-7, yi-molecule encinci enesakhiwo esijikelezayo kwaye isetyenziswa kakhulu kwicandelo lokugcinwa kwemveliso yezolimo ngenxa yendima yayo ekhethekileyo ekulawuleni i-physiological yezityalo.

I-1-Methylcyclopropene (1-MCP) yikhompawundi enendlela eyahlukileyo yokusebenza kwaye inezicelo ezibalulekileyo kwiindawo ezininzi, ingakumbi kwezolimo nasekugcinweni kokutya. Nazi ezi zilandelayo izicelo zayo eziphambili kunye neenkcukacha ezinxulumene noko:

Intsimi yezolimo kunye nokugcinwa kweziqhamo

1. Nciphisa isiphumo se-ethylene kwaye wandise ixesha lokutsha kweziqhamo

Umgaqo wokusebenza: I-Ethylene yi-hormone ebalulekileyo ekuvuthweni nasekugugeni kweziqhamo zezityalo. I-1-MCP inokubopha ngokungenakuguquguquka kwi-ethylene receptors, ithintele ukuhanjiswa kwesignali ye-ethylene, ngaloo ndlela ilibazise ukuvuthwa, ukuthamba kunye neenkqubo zokuguga kweziqhamo.

Iimeko zesicelo:

Ukugcinwa kweziqhamo ezahlukeneyo: ezinje ngama-apile, amapere, iibhanana, ii-kiwi, iimango, ama-strawberry, njl. Umzekelo, ukuba ama-apile anyangwa nge-1-MCP emva kokuvunwa, anokwandisa kakhulu ixesha lawo lokugcinwa efrijini okanye kubushushu begumbi, kwaye agcine ukuqina kunye nokuthungwa kwenyama.

Lawula izifo zomzimba emva kokuvunwa: Nciphisa iingxaki ezifana nokubola kweziqhamo ezibangelwa yi-ethylene (njengesifo samabala amnyama kwiibhanana).

Iingenelo: Xa kuthelekiswa nezinto ezifunxa i-ethylene zemveli (ezifana ne-potassium permanganate),1-MCPinesiphumo esihlala ixesha elide nesisebenzayo, kwaye ifuna idosi ephantsi (ngesiqhelo i-ppm ezimbalwa).

2. Lawula ukuguga kweentyatyambo nezityalo zokuhombisa

Isetyenziswa ekugcineni iintyatyambo ezisikiweyo: Yandisa ubomi bevazi yeentyatyambo ezisikiweyo ezifana neerozi, iicarnations kunye neelilies, kwaye ubambezele ukubuna nokunyamalala kwamagqabi.

Ulawulo lwezityalo ezifakwe kwiimbiza: Zithintela ukuguga kwangethuba kwezityalo zokuhombisa zangaphakathi (ezifana nePhalaenopsis) kwaye zigcine imo entle yesityalo.

Intsimi yoLimo lweZityalo kunye nokuLima izityalo

1. Lawula ukukhula nophuhliso lwezityalo

Ukulibazisa ukuguga kwemifuno: Isetyenziselwa unyango emva kokuvunwa kwemifuno efana nebroccoli kunye nelettuce ukugcina umbala wayo oluhlaza kunye nokutsha.

Ukulawula ukuhambelana kokuvuthwa kwesivuno: Ekulimeni iziqhamo ezifana neetumato kunye nepepile, unyango lwe-1-MCP luyasetyenziswa ukwenza ukuvuthwa kwesiqhamo kufane ngakumbi, okwenza kube lula ukuvunwa kunye nokucutshungulwa kwindawo enye.

2. Nciphisa iimpendulo zoxinzelelo lwezityalo

Ukumelana noxinzelelo okwandisiweyo: Phantsi kothutho okanye uxinzelelo lokusingqongileyo (njengobushushu obuphezulu okanye obuphantsi), kunciphisa impendulo yoxinzelelo olubangelwa yi-ethylene kwizityalo, kwaye kunciphisa ukutyheli nokuwa kwamagqabi.

Ezinye izicelo ezinokubakho

1. Unyango lwangaphambi konyango kwishishini lokutya

I-1-Methylcyclopropene isetyenziselwa ukugcina iziqhamo ezisandula ukunqunyulwa (ezifana nezilayi zeapile kunye neziqwenga zepere), ukulibazisa i-oxidation kunye ne-Browning, kunye nokwandisa ixesha lokuphelelwa.

2. Uphando lwezenzululwazi kunye nophando lovavanyo

Njengesixhobo sokufunda indlela esebenza ngayo i-ethylene, isetyenziswa kwi-physiology yezityalo kunye novavanyo lwebhayoloji yemolekyuli ukuhlola indlela yokulawula indlela yokubonisa i-ethylene.

Amanyathelo okulumkela ukusetyenziswa

Ixesha elifanelekileyo:1-Methylcyclopropenekufuneka isetyenziswe ngaphambi kokuba kukhutshwe i-ethylene kwisiqhamo okanye kwisityalo (njengoko kwenzeka ngokukhawuleza emva kokuvunwa) ukuze kubekho isiphumo esihle. Ukuba isiqhamo singene kwinqanaba lokugqibela lokuvuthwa, isiphumo sonyango siya kuncipha.

Ulawulo lomlinganiselo: Izityalo ezahlukeneyo zinovakalelo olwahlukileyo kwi-1-Methylcyclopropene 1-MCP (umzekelo, uhlobo lwesiqhamo esiguqulwayo lunovakalelo olungakumbi). Uxinzelelo lokusetyenziswa kufuneka luhlengahlengiswe ngokweentlobo ukuze kuthintelwe incasa engaqhelekanga yesiqhamo ebangelwa yimilinganiselo egqithisileyo (njengokuba "ngumgubo" wama-apile).

Iimeko zendalo: Unyango kufuneka lwenziwe kwindawo evaliweyo (njengegumbi lokugcina umoya elilawulwayo okanye iingxowa zeplastiki), njengoko ubushushu kunye nokufuma kunokuchaphazela ukufunxwa kunye nokusebenza kakuhle kwe-1-MCP.

Okwangoku, ndicinga ukuba wonke umntu uza kube eqwalasele umbuzo omnye:

Ngaba ukusetyenziswa kwe-1-methylcyclopropene kuyingozi emzimbeni womntu?

I-1-methylcyclopropene ayinabungozi emzimbeni womntu phantsi kweemeko ezifanelekileyo zokusetyenziswa, kwaye ukhuseleko lwayo luye lwaqatshelwa zizikhungo zamazwe ngamazwe ezigunyazisiweyo. Nokuba yityhefu ebukhali, iziphumo zempilo zexesha elide okanye iingozi eziseleyo, zonke zingaphakathi koluhlu olwamkelekileyo. Abathengi akufuneki bakhathazeke xa besitya iimveliso zezolimo eziphathwe nge-1-MCP, kwaye abaqhubi kufuneka balandele iinkqubo zokhuseleko kuphela ukuze baphephe umngcipheko wokuvezwa emsebenzini. Inzuzo ephambili yale teknoloji isekongezeni ixesha lokutsha kweemveliso zezolimo ngeendlela zesayensi endaweni yokungenisa iingozi ezinokubakho zokhuseleko.

Ixabiso eliphambili le-1-methylcyclopropene likwindlela echanekileyo yokulawula imiphumo ye-ethylene kwimpilo ukuze kufezekiswe ukugcinwa kweemveliso zezolimo kunye nolawulo lokukhula kwezityalo. I-1-methylcyclopropene ibe yindlela ebalulekileyo yobugcisa yonyango emva kokuvuna kwezolimo zanamhlanje, ingakumbi ineenzuzo ezibalulekileyo ekwandiseni ubomi bokugcina kunye nokuphucula umgangatho weziqhamo kunye neentyatyambo. Ingakumbi ehlotyeni, imeko-bume yobushushu obuphezulu kunye nomswakama ophezulu ehlotyeni inokukhawulezisa ngokulula ukonakala kweziqhamo. Ukugcinwa kwesayensi kufuna ukwenziwa kwezicwangciso kunye neempawu zeziqhamo kunye nezinto ezingqongileyo.

Ingakumbi ehlotyeni, indawo enobushushu obuphezulu kunye nomswakama ophezulu ehlotyeni inokukhawulezisa ukubola kweziqhamo ngokulula. Ukulondolozwa kwesayensi kufuna ukwenziwa kwezicwangciso kunye neempawu zeziqhamo kunye nezinto ezingqongileyo. Singoochwephesha.Ababoneleli be-1-methylcyclopropeneUmgubo we-1-MCP lukhetho olufanelekileyo kuwe.