Mass of 1,000 grains in several winter wheat genotypes, at different dates of sowing and rates of nitrogen fertilizer.

Abstract

Four winter wheat varieties planted at three sowing dates and fertilized with five rates of nitrogen were investigated under field conditions. On average fixer all sowing dates and fertilizer rates, the highst mass of was grain (44 g) was recorded a the variety Pobeda, while the lowest (38 g) was found in the variety PKB–Lepoklasa (38 g). Highest mass of 1,000 grains in all varieties was recorded in 1999 when weather conditions were ideal from anthesis to maturity. Date of sowing and amount of nitrogen ferti lizer had considerable influence on the mass of 1,000 grains.