Navi rastani

Kheli rastani, k u l t i v a r, majmui rasta- nihoest, ki bo rohi selekksioni ba vujud omadaand va alomatu khususiyathoi muayyani morfologiyu fizio­logi va khojagii khudro az nasl ba nasl meguzaronand; vohidi tasnifoti rastanihoi mazru. Navi rastani mahalli va seloksioni meshavad Navhoi m a h a l l i mahsuli seleksiyam khalqi buda, dar natijai intikhobi umumii durudaroz ba dast omadaast. Onho ba sharoiti mahal nagz mutobiq buda, bisyor khususiyathoi muhimi khojagiyu seleksioni dorand. Nav­hoi seleksioni dar muassisahoi tadqiqoti ilmi bo usulhoi makhsus ba vujud ovarda meshavand.

Navho az rui paydoish va khususiathoi biologi khatti (nasli yak ras­tenii khudgardoludshavanda, ki khususiyathoi yakkhela doshta, bo rohi in­tikhobi fardi ba dast ovardaand), fardi (majmui rastanihoi az jihati genetiki yakkhelai odatan dutarafa gardoludshavanda, ki yak yo yakchand alomathoi umumi dorand), kloni (nasli intikhobii rastanii az jihati genetiki beshtar yakkhela, ki bo rohi nashvi — qalamcha, bekhjast va payvand ziyod kardaand) meshavand. Navi rastanii hamjinsro, ki alomathoi khojagi va biologii monand dorand, ba­roi osonii omuzish va inventariza­tsiya ba guruhho — navtipho muttahid mekunand. Navhoi behtarinro istifoda burdan yake az bekhtarin omilhoi baland bardoshtani hosili ziroati khljagii qishloq va bekhtar kardani sifati mahsuloti on meboshad. Dar natijai durudaroz istifoda burdani navho sifat va hosilnokii onho past meshavad, ki dar natija masalai navbarqarorkuni ba miyon meoyad. Navi rastanihoi kuhnaro har sa­ri vaqt bo navhoi serhosilu khush­sifat ivaz mekunand.

Dar ITTIHODI ShURAVI hamai navhoro pesh az ba istehsolot jori namudan az san- jishi davlati (konkursi makhsus, ki navhoi behtarinro intikhob meku­nad) meguzaronand. Ba ziyod kardani Navi rastani muassisahoi tukhmiparvari mashgul meshavand. Haqiqi budani Navi rastaniro nazorati nav muayyan meku­nad.