Genetic Analysis of Yield, Yield Components, and Earliness in Some Bread Wheat Crosses

El-Rahman, Magda E. Abd

doi:10.21608/ejar.2008.205157

“…These results suggest that dominance gene action was primarily responsible for the inheritance of most traits in these crosses. These results were similar to these obtained by Farshadfar et al, (2013) andAbd El Rahman (2013).…”

Section: Discussionsupporting

confidence: 93%

Estimation of some genetic parameters using six populations mean analysis in three faba bean crosses exposed to natural infection of foliar diseases

Ibrahim,

Abo-Zaid,

Mostafa

2023

Egyptian Journal of Agricultural Research

0

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This investigation was carried out in three winter seasons 2019/20, 2020/21 and 2021/2022at Sakha Agricultural Research Station, Kafr El-Sheikh Governorate, Egypt to estimate some genetic parameters of yield and its components as well as the extent of heterosis, inbreeding depression, heritability, genetic advance, and behavior of gene action in three faba bean crosses. The analysis of gene effects was done using means of Six populations (P1, P2, F1, F2, Bc1 and Bc2) of three faba bean crosses were used in this study. These crosses were (Sakha 3 x R V 322), (Nubaria 1 x RV 322) and (Giza 429 x Marina). Analysis of variance showed significant differences among the generations for all traits. Scaling test showed that most studied characters were significant, indicating the presence of non-allelic interactions. Both dominance and additive gene effects were important but mostly dominance higher than additive ones, indicating that dominant genes playing an important role in the inheritance of such traits beside the additive one. The second cross (Nubaria 1 x RV 322) gave a highly significant (aa) with negative values for flowering, maturity, chocolate spot and rust diseases traits, these indicate that the materials used in this study have a decreasing alleles expression which makes it improving through selection in the early generations. Significant positive inbreeding depression and heterotic effect values were detected for most studied traits. Crosses, especially the first cross (Sakha 3 x R V 322) gave the highest heritability in narrow-sense and genetic advance for number of branches, number of pods/plants, number of seeds/pod and seed yield. Therefore, selection in these populations should be effective and satisfactory in the successful breeding purposes.

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“…The variation among wheat genotypes in number of spikes/m 2 could be attributing to genetic variation (Table 2). These results are in harmony with those reported by Salem, (2005) found significant differences among eight bread wheat varieties in number of spikes/m 2 , Khalil et al, (2006), Gab Alla (2007, Abd El-Rahman (2008) and Abdel-Nour and Fatheh (2011) confirmed similar obtained results. Data presented in Table (4) indicated that, the genotype; Gemmeiza 11 recorded the highest values for number of grains/spike, biological yield, and straw yield.…”

Section: -Mean Performancesupporting

confidence: 92%

Effect of Nitrogen Fertilizer Levels and Irrigation Regimes on Yield and Yield Components of Some Wheat Cultivars

El-Refaey

¹

,

El-Seidy²,

Atta³

et al. 2023

Menoufia Journal of Plant Production

3

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This investigation was performed during the two successive growing seasons 2018/19 and 2019/20 to study the effect of three irrigations and three nitrogen levels on yield and yield components of four common wheat cultivars. The highest number of spikes/m 2 , grains/spike, straw yield, biological yield, grains/spike and 1000-grain weight recorded by increasing number of irrigations from one to four irrigations. Grain yield/fad were significant only in the second growing season. Plants that received two or four irrigations produced the highest significant values of grain yield/fad. Concerning fertilization, the highest significant values of yield and yield components were obtained from fertilized wheat plants with 100 kg N/fad in both seasons, while the lowest one was obtained from 50 kg N/fad in both seasons. Banei Sweif 6 cultivar recorded the highest number of spikes/m 2 in both seasons, while Gemmeiza 11 recorded the highest number of grains/spike, straw yield and biological yield. The highest means of 1000-grain weight, and grain yields were detected in Banei Sweif 1 in both seasons. The interactions of irrigations regimes x N fertilization levels were significant for biological yield, straw yield in the second season. The interactions of irrigations regimes x genotypes were significant for biological yield, straw yield in both season and for harvest index in one season. On the other hand, interaction among the three study factors did not reach the level of significance for all studied traits. We conclude from the results that irrigation four times and twice gave the highest yield values compared to irrigation once, and it is recommended to add nitrogen fertilizer at a rate of 100 kg nitrogen per feddan to maximize the productivity of the wheat crop, under the environmental conditions of this experiment.

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“…The variation among wheat genotypes in number of spikes/m 2 could be attributing to genetic variation (Table 2). These results are in harmony with those reported by Salem, (2005) found significant differences among eight bread wheat varieties in number of spikes/m 2 , Khalil et al, (2006), Gab Alla (2007, Abd El-Rahman (2008) and Abdel-Nour and Fatheh (2011) confirmed similar obtained results. Data presented in Table (4) indicated that, the genotype; Gemmeiza 11 recorded the highest values for number of grains/spike, biological yield, and straw yield.…”

Section: -Mean Performancesupporting

confidence: 92%

Eeffect of Nitrogen Fertilizer Levels and Irrigation Regimes on Yield and Yield Components of Some Wheat Cultivars

R.A.¹,

E.H

²

,

Atta

³

et al. 2023

Menoufia Journal of Plant Production

0

View full text Add to dashboard Cite

This investigation was performed during the two successive growing seasons 2018/19 and 2019/20 to study the effect of three irrigations and three nitrogen levels on yield and yield components of four common wheat cultivars. The highest number of spikes/m 2 , grains/spike, straw yield, biological yield, grains/spike and 1000-grain weight recorded by increasing number of irrigations from one to four irrigations. Grain yield/fad were significant only in the second growing season. Plants that received two or four irrigations produced the highest significant values of grain yield/fad. Concerning fertilization, the highest significant values of yield and yield components were obtained from fertilized wheat plants with 100 kg N/fad in both seasons, while the lowest one was obtained from 50 kg N/fad in both seasons. Banei Sweif 6 cultivar recorded the highest number of spikes/m 2 in both seasons, while Gemmeiza 11 recorded the highest number of grains/spike, straw yield and biological yield. The highest means of 1000-grain weight, and grain yields were detected in Banei Sweif 1 in both seasons. The interactions of irrigations regimes x N fertilization levels were significant for biological yield, straw yield in the second season. The interactions of irrigations regimes x genotypes were significant for biological yield, straw yield in both season and for harvest index in one season. On the other hand, interaction among the three study factors did not reach the level of significance for all studied traits. We conclude from the results that irrigation four times and twice gave the highest yield values compared to irrigation once, and it is recommended to add nitrogen fertilizer at a rate of 100 kg nitrogen per feddan to maximize the productivity of the wheat crop, under the environmental conditions of this experiment.

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Genetic Analysis of Yield, Yield Components, and Earliness in Some Bread Wheat Crosses

Cited by 3 publications

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Estimation of some genetic parameters using six populations mean analysis in three faba bean crosses exposed to natural infection of foliar diseases

Estimation of some genetic parameters using six populations mean analysis in three faba bean crosses exposed to natural infection of foliar diseases

Effect of Nitrogen Fertilizer Levels and Irrigation Regimes on Yield and Yield Components of Some Wheat Cultivars

Eeffect of Nitrogen Fertilizer Levels and Irrigation Regimes on Yield and Yield Components of Some Wheat Cultivars

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