Stratification (mkpụrụ)

N'ihe ọkụkụ, stratification bụ usoro ọgwụgwọ mkpụrụ iji mee ka ọnọdụ okike nke mkpụrụ osisi ahụ ga-enweta tupu ịmalite ịmalite. Ọtụtụ ụdị mkpụrụ osisi nwere oge dormancy embrayo na-agaghị esikwa pulite ruo mgbe ezumike a mebiri.

Enwere ike ịchọta okwu stratification azụ na opekata mpe 1664 na John Evelyn's Sylva, ma ọ bụ Okwu nke Forest-Trees and the Propagation of Timber, [2] ebe etinyere mkpụrụ osisi (stratified) n'etiti ala mmiri na-ekpo ọkụ ma kpughee strata ahụ. ọnọdụ oyi. N'ihi ya, stratification ghọrọ usoro nke mkpụrụ osisi na-eji artificially kpughee ọnọdụ iji kwalite germination.

 Nchịkọta oyi 
oyi stratification bụ usoro nke itinye mkpụrụ n'okpuru ọnọdụ oyi na nke mmiri. Mkpụrụ nke ọtụtụ osisi, obere osisi na osisi ndị na-adịgide adịgide chọrọ ọnọdụ ndị a tupu ntolite.   [citation needed]

N'ọhịa, a na-emekarị ụra mkpụrụ na-ehi ụra site na oge mkpụrụ na-anọ n'ala n'oge oyi ma nwee mkpuchi mkpụrụ ya siri ike nke oyi na ihu igwe. Site n'ime nke a, mkpụrụ ahụ na-agafe ụdị okike nke "okpomọkụ" ma ọ bụ tupu ọgwụgwọ. Oge oyi a na-ekpo ọkụ na-akpali mkpụrụ ahụ; uto ya na mgbasawanye ya na-esote na-emecha mebie mkpuchi mkpụrụ ahụ dị nro na ọchụchọ ya maka anyanwụ na ihe oriri.   [citation needed]

oyi na-eme ka usoro okike site na itinye mkpụrụ n'ime ala dị jụụ (nke kachasị mma +1 ruo +3 ) maka oge otu ọnwa ruo ọnwa atọ. A na-etinye mkpụrụ n'ime ihe dị ka vermiculite, peat, ma ọ bụ ájá ma tinye ya na friji n'ime akpa plastik ma ọ bụ akpa mechiri emechi. Ịtinye mkpụrụ n'ime mmiri oyi ruo awa 6-12 tupu etinye ha n'ime oyi nwere ike belata oge achọrọ maka stratification, dịka mkpụrụ ahụ chọrọ ịmị mmiri iji mee ka mgbanwe kemịkal na-ewere ọnọdụ.   [citation needed]

Ojiji nke fungicide iji mee ka vermiculite dị nro ga-enyere aka igbochi ọrịa fungal. Chinosol (8-quinolyl potassium sulfate ) bụ otu n'ime ọgwụ fungicide a na-eji egbochi ọrịa Botrytis cinerea. 

 Ọdịdị okpomọkụ na oyi 
Mkpụrụ ọ bụla nke egosiri dị ka nke chọrọ oge okpomọkụ na-esote okpomọkụ okpomọkụ ga-etinye n'okpuru otu usoro ahụ, mana a ga-etinye mkpụrụ ahụ na mpaghara na-ekpo ọkụ na mbụ, na-esochi oge oyi na friji mgbe e mesịrị. Ọdịdị dị ọkụ chọrọ okpomọkụ nke 15-20  . N'ọtụtụ ọnọdụ, a pụkwara izute usoro okpomọkụ na-esote ihe ndị oyi chọrọ site n'ịkụ mkpụrụ n'oge okpomọkụ n'elu àkwà maka ịtụ anya ntolite n'oge opupu ihe ubi na-eso ya. Mkpụrụ ụfọdụ nwere ike ọ gaghị epulite ruo n'oge opupu ihe ubi nke abụọ.   [citation needed]

 Hụkwa 

 Scarification (botany) - usoro iji melite ntolite site n'ime ka mkpụrụ dịkwuo mfe
 Vernalization - induction nke okooko osisi site na oyi

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