Variability of grain weight per spike in wheat grown in different ecological conditions
Knežević, Desimir (Faculty of Agriculture, Lešak (Serbia)) | Radosavac, Adriana (University Business Academy, Novi Sad (Serbia). Faculty for Economy and Engineering Management) | Zelenika, Milica (Faculty of Agriculture, Čačak (Serbia))
Variability of grain weight spike-1 was studied in 10 wheat genotypes: ‘Ana Morava', 'Julija Mono', 'Gruža', 'Kruna', 'Lasta', 'Balkan', 'Rodna', 'NS Rana 2', 'Partizanka', 'Pobeda', grown over three experimental years under different environmental factors. The experiment was set up as a randomized block design in three replications. Differences in the average values of grain weight spike-1 among tested cultivars were determined in all three years. On average, for all genotypes, grain weight spike-1 was highest (2.32g) in the first experimental year (2005/06), and lowest (1.95g) in the second year (2006/07). For all investigated wheat cultivars, in the third experimental year, the average value of grain weight spike-1 was 2.24g, while the total average value for all cultivars and three experimental years was 2.17g. ‘Ana Morava’ had the highest average values for grain weight spike-1 in all three experimental years, while the lowest grain weight spike-1 was obtained in ‘Balkan’ (1.81g) in the second year ‘Lasta’ (1.40g) and in the third experimental year ‘Partizanka’ (1.91g). On average, ‘Ana Morava’ had the highest value (2.67g) of grain weight spike-1, while the lowest average value (1.94g) was recorded in ‘Balkan’.
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