Evaluation of seed yield of durum wheat (Triticum durum) under drought stress and determining correlation among some yield components using path coefficient analysis
DOI:
https://doi.org/10.22458/urj.v10i1.2023Keywords:
Correlation, drought stress, durum wheat, Triticum, path analysisAbstract
Water deficit affects can have negative effects on grain formation. I investigated the relationships between the characters of durum wheat (Triticum durum) and yield under drought stress and identified the most effective components of yield. I used 49 durum wheat genotypes (43 exotic and 6 local lines), in a lattice design (7×7) replicated twice, during tillering, stem elongation, anthesis and grain filling. There were positive correlations among harvest index (r=0,849), plant height (r=0,695), tillering (r=0,689), peduncle length (r=0,466) and grain yield. The number of seeds per spike (0,432), spike length (0,410) and 1 000 seed weight (0,385) had the highest direct effect on yield.
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