Male sterility systems in sorghum [Sorghum bicolor (L.) Moench]

Abstract

Sorghum is the fifth major cereal crop in the world after wheat, rice, maize and barley. Discovery of heterozis in sorghum in the middle of last century opened possibility for in creasing yield by growing hybrids. Technology of hybrid seed production in commercial scale was overcome due to male sterility. During last fifty years was identified several male sterility systems, which are more or less used in hybrid seed production. The present article is a review of male sterile systems in sorghum and identified sterility genes and sterility cytoplasm's. .

Po obimu proizvodnje sirak je u svetskim razmerama posle pšenice, pirinča, kukuruza i ječma peta najznačajnija žitarica. Otkrićem heterozisa kod sirka sredinom prošlog veka ukazala se mogućnost povećanja prinosa gajenjem hibrida. Tehnologija proizvodnje hibridnog semena u komercijalnim razmerama je savladana zahvaljujući pronalasku muške sterilnosti. Tokom poslednjih pola veka identifikovano je nekoliko sistema muške sterilnosti koji se u većoj ili manjoj meri primenjuju pri proizvodnji hibridnog semena sirka. Dat je pregled i karakteristike sistema muške sterilnosti kod sirka i opisani su do sada identifikovani geni sterilnosti i sterilne citoplazme. .