(Comparative Performance and Stability of Some Durum Wheat Genotypes under Heat Stress.) | ||||
| Journal of Sohag Agriscience (JSAS) | ||||
| Volume 10, Issue 2, December 2025, Page 52-61 PDF (1.5 MB) | ||||
| Document Type: Research and Review Papers | ||||
| DOI: 10.21608/jsasj.2025.446527 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Alaa A. Said ; Ahmed R. M. Ridwan*
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| Agronomy Department Faculty of Agriculture Sohag University Sohag 82524 Egypt | ||||
| Abstract | ||||
| The present study was conducted to select high-yielding, heat-tolerant genotypes with potential for cultivation in climate-stressed environments. Twenty-five durum wheat lines were evaluated for heat tolerance under two sowing dates (November 25th and December 25th). Five agronomic traits were evaluated, i.e. spike length, no. of spikes per plant, 1000-grain weight, biological yield per plant and grain yield under timely and late sowing dates. The results showed that sowing dates, genotypes and their interaction significantly influenced all agronomic traits. Based on the results obtained from the Eberhart & Russell and principal components, Line No. 15 was identified as superior genotype under diverse environmental conditions. Moreover, Lines No. 13 and 14 were regarded as comparatively superior under stress conditions (heat stress), while Lines No. 20 and 24 demonstrated superior performance under favorable environmental conditions (timely sowing date) according to Eberhart & Russell and principal components. Consequently, these findings may be valuable for breeding programs aimed at developing high-yielding, stable genotypes for these environmental conditions. | ||||
| Keywords | ||||
| Triticum durum; stability; principal component; agronomic traits; heat stress | ||||
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