GIZA 13: A NEW FLAX VARIETY AS A FIBER TYPE | ||
| Egyptian Journal of Plant Breeding | ||
| Volume 29, Issue 1, April 2025, Pages 73-87 PDF (783.87 K) | ||
| Document Type: Original research | ||
| DOI: 10.12816/ejpb.2025.452494 | ||
| Abstract | ||
| Ten flax genotypes, including eight promising local strains and the two check varieties Sakha 3 and Giza 9 (fiber type), were evaluated in twelve different environments at four locations (Sakha, Etay El-Baroud, El-Ismailia and El-Gemmiza Agricultural Research Stations) in three consecutive seasons ( from 2021/2022 to 2023/2024) for straw, fiber and seed yields and associated traits. The experimental design was a randomized complete block trial with three replicates for each of the twelve environments. Analysis of variance showed highly significant differences among genotypes (G), environments (E) and the interaction between (G x E) for all traits analyzed, except for the oil content in (E) and (G x E). This indicates considerable variation among genotypes, which, showed different responses to environmental conditions. The considerable variation attributed to the residuals for all traits except the oil fraction indicates that genotypes vary in their stability, suggesting that predictions based only on mean performance are difficult.Consequently, combining yield and performance stability is advantageous. Yield stability (YSi) statistics showed that Giza 13 had better mean performance and stability in straw and fiber yields per fed and fiber percentage compared to the other lines and the two check varieties Sakha 3 and Giza 9. S.933/10/3/3 showed good performance and stability for seed yield, oil yield and related traits. Consequently, this genotype (S.933/10/3/3) can be used in breeding programmes to develop genotypes with consistently high seed and oil yields. The results of this study showed that variety 620/3/5 (Giza 13) had a remarkable increase in productivity compared to the two control varieties Sakha 3 and Giza 9, by 18.6% and 21.8% in straw yield per feddan, 6.0% and 4.2% in fiber content and 25.0% and 26.5% in fiber yield per feddan, respectively. The results showed that S.620/3/5 had the highest average performance for three important traits: straw yield, fiber yield per fed and the percentage of fiber content. The promising variety 620/3/5 is proposed for commercialization as a new commercial flax fiber variety named Giza 13. It is therefore recommended that the Fiber Research Department in Egypt replace Sakha 3 and/or Giza 9 with Giza 13 in their growing areas. | ||
| Keywords | ||
| New flax variety; Fiber type; Stability | ||
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