Heat Tolerance in Some Bread Wheat Genotypes Under Two Sowing Dates

badr, asmaa; Ahmed, Mahmoud F.; Esmail, A. M.; Rashed, M. A.

doi:10.21608/ajs.2018.28287

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…Global climate change and human population increase had a significant effect on agricultural production (Badr et al, 2018;Zartash et al, 2020). Heat stress is one of most important climate negative change factors, as there is a global increase in the average temperature by 1.8-4 • C in the 21 st century (De Hertog, 2023), causing a significant yield loss (Wu et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Phenotypic and genotypic diversity analysis of some Egyptian barley cultivars (Hordeum vulgare L.) under different heat stress conditions

Mariey

Hashem

Ahmed

et al. 2023

Egyptian Journal of Agricultural Research

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Global food security has been disturbed by global climatic changes and increasing human population around the world. Heat stress is one of most imperative abiotic stress factors that limit barley productivity and production. Herein, three different field screening locations were carried out at Sakha, Mallawi and New-valley research stations, to identify the phenotypic and the genotypic diversity of ten Egyptian barley cultivars during two consecutive seasons 2019/2020 and 2020/2021 under different temperatures degrees. phenotypic diversity was evaluated by using some agrophysiological and grain quality characters which were contributing to yield under heat stress. Genotypic diversity was evaluated by using Sequence related amplified polymorphism (SRAP) markers as molecular identification. The results showed that high temperature enhancement all the cultivars to accelerate flowering by an average (11.39 %) and induce proline content, catalases, peroxidase enzyme active, crude protein content to increasing by average values (79.95, 40.74, 76.42 and 8.20%) respectively. However, it had a negative effect on the remaining characters. Giza 124, Giza 134, Giza 138, and Giza 132 gave high mean performance values of all measured characters being considered as heat tolerance cultivars. Ten SRAP combination primers were used where the percentage of polymorphism for each primer combination varied from 50.0% (me2+em5) to 83.3% (me5+em1). The highest polymorphism information content (PIC) was related to primer me5+em1 (0.399), indicating that this primer is highly informative to be used the barley genetic diversity for heat stress tolerance. A cluster heatmap showed that the ten barley cultivars were clustered into two main clusters, each cluster includes the most closed cultivars together due to their response to heat stress, which could be used as a source in future barley breeding programs for heat stress.

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Section: Introductionmentioning

confidence: 99%

Phenotypic and genotypic diversity analysis of some Egyptian barley cultivars (Hordeum vulgare L.) under different heat stress conditions

Mariey

Hashem

Ahmed

et al. 2023

Egyptian Journal of Agricultural Research

View full text Add to dashboard Cite

show abstract

“…It is predicted that global warming has a generally negative impact on plant growth because the high temperatures have a damaging effect on plant development (Badr et al, 2018). The growing threat of climatological extremes including high temperatures may cause a tragic loss of crop productivity and lead to widespread starvation (Liu et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Effect of Heat Stress on Yield and Its Components of some Egyptian Wheat Cultivars

Naif

Abdel‐Ghany

2022

Journal of Plant Production

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Two field experiments were conducted during (2019/2020 and 2020/2021) seasons in Abu El Matamir region, Beheira Governorate, Egypt to evaluate the yield and its components of four Egyptian wheat cultivars . Plant phenology and grain development traits including (days to anthesis, days to maturity, plant height and grain filling duration) and grain yield and its components traits (spikes number /m 2 , grains number /spikes, grain weight, grain yield, straw yield, biological yield and harvest index) were studied. The analysis of variance indicated that there were highly significant differences between cultivars for most of these traits in both seasons under both normal and heat-stressed conditions. Related to plant phenology and grain development traits, the highest cultivar under heat-stressed conditions at most of these traits was Giza 168 whereas Bani Sweif 5 was the lowest. Concerning grain yield and its components traits, the highest cultivar under heat-stressed conditions for spikes number /m 2 , grain yield, straw yield and biological yield was Bani Sweif 5. Giza 168 was the lowest for grain weight, grain yield, straw yield and biological yield. These results revealed that Bani Sweif 5 cultivar can be used for heat stress programs in wheat.

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Heat Tolerance in Some Bread Wheat Genotypes Under Two Sowing Dates

Cited by 2 publications

References 6 publications

Phenotypic and genotypic diversity analysis of some Egyptian barley cultivars (Hordeum vulgare L.) under different heat stress conditions

Phenotypic and genotypic diversity analysis of some Egyptian barley cultivars (Hordeum vulgare L.) under different heat stress conditions

Effect of Heat Stress on Yield and Its Components of some Egyptian Wheat Cultivars

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