Response to F3 Selection for Grain Yield in Durum Wheat [Triticum turgidum (L.) Thell. ssp. turgidum conv. durum (Desf.) Mac Key] under South Mediterranean Conditions

Laala, Zahira; Benmahammed, Amar; Oulmi, Abdelmalek; Fellahi, Zine El Abidine; Bouzerzour, H.

doi:10.9734/arrb/2017/37923

Cited by 4 publications

(3 citation statements)

References 14 publications

(23 reference statements)

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“…This could be attributed to evaluating the selected families on new land for one season (Salous, 2017;Patel et al, 2019;Nassar, 2020). These results are in agreement with those of Mahdy (2012), Laala et al (2017), and Salous (2017, who noted that realized heritability was high for grain yield (66.73 and 82.21) under normal irrigation and (37.79 and 59.63) under drought irrigation after C1 and C2, respectively. These outcomes supported the hypotheses raised by the analyses of the parent-offspring regressions and the intergenerational correlation coefficients.…”

Section: Discussionsupporting

confidence: 87%

Selection of yield and its components in bread wheat under old and new land conditions in Upper Egypt

Salous,

Abdel-Latif,

AbdEL- kader

2023

Egyptian Journal of Agricultural Research

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Improving wheat's tolerance to environmental stress is of utmost importance in the current era due to climatic changes. This study was carried out to determine the relative merits of pedigree selection for grain yield per plant on old and new land. To quantify the response of selection, two cycles of pedigree selection for grain yield per plant were applied to a segregating population of bread wheat crosses (Misr 3 Line #1) in F3 and F4 generations under new land stress conditions. The F5-selected families were evaluated in both old and new land habitats after the second cycle. Under both circumstances, the genotypic variance was much less than the phenotypic variance, and it generally decreased from the F3-generation to the F5-generation. Furthermore, compared to the old land environment, broad-sense heritability estimates for grain yield plant-1 were lower in the new land environment. After Cycle 1 and Cycle 2, the realized heritability in old land was 52.03 and 84.52 percent, respectively, compared to 34.08 and 62.80 percent in new land. In both cases, the instant reaction to selection that was found on ancient soil was examined, and the results showed a significant increase in grain production from both the bulk and the best parent of 5.40 and 5.02 percent and 17.28 and 7.03 percent, respectively. Selected families for grain yield under new land that were studied under both conditions revealed negligible increases of 12.29 and 2.80 percent from the bulk and considerable increases of 28.24 and 22.34 percent from the better parent, under new and old land, respectively. The results indicate these genotypes could be used as sources of tolerance or factors contributing to general adaptation. Furthermore, selection for grain yield/plant under new land stress was superior to selection under old land stress, regardless of whether selection entries were evaluated under stress or non-stress.

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Section: Discussionsupporting

confidence: 87%

Selection of yield and its components in bread wheat under old and new land conditions in Upper Egypt

Salous,

Abdel-Latif,

AbdEL- kader

2023

Egyptian Journal of Agricultural Research

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“…Moreover, Sakha 95 × Gemmeiza 12 and Sids 12 × Misr 3 were the best crosses with dry gluten values of 14.14 and 13.02 % and will be favorable to breeding for wheat grain quality. Exploiting the important characters like grain yield, plant height and rusts resistance to select the best plants or families was performed in some previous studies like Hussain et al (2017); Laala et al (2017) and Darwish et al (2018). Table 15.…”

Section: F-selection the Best Crosses In F 1 To F 2 Generationmentioning

confidence: 99%

Breeding for some Agronomic and Quality Characters in Bread Wheat

Farhat¹,

Mohamed

2018

Journal of Plant Production

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To improve agronomic and quality in bread wheat, this experiment was performed in 2015/16 and 2016/17 seasons at Sakha Agricultural Research Station, Egypt to study performance of ten bread wheat (Triticum aestivum L.) genotypes (Giza 171, Sakha 95, Gemmeiza 12, Shandweel 1, Sids 12, Sids 14, Misr 3, Line 1, Line 2 and Line 3) and their forty-five F 1 crosses were evaluated for sixteen agronomic and grain quality characters. The mean squares for genotypes, parents, crosses, parents vs. crosses, general and specific combining ability were significant for most studied characters. The ratio of general and specific combining ability was more than unity for all characters and both additive and non-additive gene effects were important in controlling the studied characters with more importance for additive effects. The best performance was detected in Sakha 95, Sids 14 and Shandweel 1 for grain yield plant -1 , all parents except for Sids 12 and Giza 171 and Shandweel 1 for yellow rust, Line 1 for stem rust and Gemmeiza 12 and Sids 12 for dry gluten. The best combiners were Sakha 95, Sids 14, Giza 171 and Misr 3 for grain yield plant -1 and Giza 171, Sakha 95, Gemmeiza 12 and Shandweel 1 for wet and dry gluten. Grain yield plant -1 had positive significant correlation with grain filling rate, plant height, number of spikes plant -1 and kernel weight. The correlation of dry gluten was significant and positive with wet gluten and negative with hydration capacity percentage. Path coefficient analysis showed that the highest positive direct effect on grain yield plant -1 was obtained by grain filling period, wet gluten, days to maturity and days to heading. On the other hand, the highest negative direct effect was detected by dry gluten, hydration capacity percentage and days to anthesis. The highest positive direct effect on dry gluten was obtained by wet gluten, grain filling rate and days to maturity. Meanwhile, the highest negative direct effect on dry gluten was obtained by grain yield plant -1 , hydration capacity percentage and days to anthesis. Using stepwise regression, days to heading, grain filling period and rate, kernel weight, yellow rust resistance and electrical conductivity had justified the maximum of grain yield plant -1 changes. Number of kernels spike -1 , wet gluten and hydration capacity percentage had justified the maximum of dry gluten changes. Giza 171 × Misr 3, Line 1 × Line 3, Sids 12 × Misr 3, Giza 171 × Line 2, Sakha 95 × Shandweel 1, Sakha 95 × Gemmeiza 12 and Shandweel 1 × Misr 3 crosses had high yield potentiality and resistance to yellow rust and moderately susceptible to stem rust, consequently these crosses will be favorable in wheat breeding programs. Sakha 95 × Gemmeiza 12 and Sids 12 × Misr 3 were the best crosses for dry gluten and will be promising in breeding for wheat grain quality.

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“…Also, five of them were preferable for grain quality. Considering the effective characters like grain yield and rusts resistance to select the superior plants or families was achieved in some earlier research like Laala et al (2017) and Darwish et al (2018a and b).…”

Section: F4 Generationmentioning

confidence: 99%

Improvement of Yield, Rust Resistance and Grain Quality Characters in Bread Wheat Cross Sids 12 X Misr 3 تحسین صفات المحصول، مقاومة الأصداء وجودة الحبوب فی هجین قمح الخبز سدس 12 × مصر 3

Farhat¹,

Mohamed

Ashmawy

2020

Journal of Plant Production

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Bread wheat cross Sids 12 x Misr 3 was studied in F1, F2, F3 and F4 generations to develop promising genotypes for improvement of grain yield, rust resistance and grain quality. The two parents differed significantly for most characters under study showing sufficient variability in F2 and F3 generations to calculate the genetic parameters. The genetic variances indicated important role coupled with moderate to high broad sense heritability for most studied characters in F2 and F3 generations. Both grain filling rate and number of spikes m-2 were the most important characters in selection for high grain yield in F3 generation. Rust resistance in the two parents was controlled by one dominant gene for yellow rust, two dominant genes for leaf rust and two complementary dominant genes for stem rust. Thirty-seven families out of 100 families were superior for grain yield, but the susceptibility of the three rusts eliminated 17 families and only 20 families were resistant or moderately resistant to the three rusts. Five out of the selected 20 families had good grain quality characteristics. In F4 generation, five wheat plants characterized by an adequate resistance to the three rusts and good agronomic characters were selected for further evaluation as F5 lines.

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Response to F3 Selection for Grain Yield in Durum Wheat [Triticum turgidum (L.) Thell. ssp. turgidum conv. durum (Desf.) Mac Key] under South Mediterranean Conditions

Cited by 4 publications

References 14 publications

Selection of yield and its components in bread wheat under old and new land conditions in Upper Egypt

Selection of yield and its components in bread wheat under old and new land conditions in Upper Egypt

Breeding for some Agronomic and Quality Characters in Bread Wheat

Improvement of Yield, Rust Resistance and Grain Quality Characters in Bread Wheat Cross Sids 12 X Misr 3 تحسین صفات المحصول، مقاومة الأصداء وجودة الحبوب فی هجین قمح الخبز سدس 12 × مصر 3

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