Corn hybrid productivity depending on sowing date and plant density

Abstract

The objective in the study was to analyze the influence of sowing date and plant density on corn grain yield using some hybrids of different FAO maturity groups. The experiments were performed using small-scale field trials in four repetitions on two locations: South Banat (AD "Stari Tamiš", Pančevo) and West Bačka (AD "Jedinstvo", Apatin). Obtained results showed statisically significant differences between grain yield and sowing date, also between plant densities inside hybrids. Significant interaction between examined factors was established.

U radu su prikazani rezultati istraživanja uticaja vremena setve i gustine useva na prinos zrna nekoliko hibrida kukuruza različitih FAO grupa zrenja. Ispitivanja su obavljena putem poljskih mikroogleda u 2006. godini na dva lokaliteta, i to: južni Banat (AD "Stari Tamiš", Pančevo) i zapadna Bačka (AD "Jedinstvo", Apatin). Dobijeni rezultati su pokazali značajne razlike u prinosu zrna između rokova setve, kao i između gustina unutar pojedinih hibrida. Utvrđena je značajnost interakcije između ispitivanih faktora.