Phenotypic variability of bread wheat genotypes for nitrogen harvest index

Biljana Gorjanovic, Milka Brdar-Jokanovic, Marija Kraljevic-Balalic
2011 Genetika  
not lead to the increased nitrogen harvest index. The calculated nitrogen harvest index values were the highest for wheat growing season 2004/05, and the smallest for the season 2006/07. The highest nitrogen harvest indices were calculated for cultivars Pobeda at the N 0 rate and Zlatka at the N 100 rate (0.93), and the lowest for cultivar Tamaro at the N 0 rate (0.63). Analyzing the constructed dendogram, cultivars Pobeda and Renan at all three levels of nitrogen supply can be singled out as
more » ... e genotypes with the highest, and cultivar Tamaro as the variety with the lowest harvest index value. The results of this study may be used in developing new high-yielding bread wheat cultivars with improved nitrogen use efficiency. Growing such cultivars would provide the savings in mineral fertilizers and minimize their possible harmful effect on environment.
doi:10.2298/gensr1102419g fatcat:zwyetdxzqne4npommqtds43e7e