Evaluation of Some Egyptian Barley Cultivars under Water Stress Conditions Using Drought Tolerance Indices and Multivariate Analysis

Mariey, Samah A.; Khedr, Rania A.

doi:10.21608/jsas.2017.1061.1005

Cited by 13 publications

(14 citation statements)

References 17 publications

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“…The combined data analysis of variance for proline content (mgFwg -1 ) chlorophyll content (SPAD), number of tillers m -2 , 1000 grain weight (g), grain yield( ardfed -1 ) showed that there was effect of significant and highly significant affected by years, water stress treatments and cultivars as showhen in Table 4. These results were agreed with some investigations which have been frequently confirmed drought (water stress ) in barley (El Rabey et al, 2012;Mariey et al, 2017;S.A.A. Heiba et al, 2019) which they found there were a significant and highly significant for some traits affected by water stress conditions.…”

Section: Results and Discussion 1 Analysis Of Variancesupporting

confidence: 93%

“…In this regard, water stress during the grain-filling period reduced grain yield by decreasing the number of tillers m -2 and 1000 grain weight, as it is more critical phase and results in substantial yield losses. Similar observations have been reported in many studies of the water stress response of barley (El Rabey et al, 2012;Mariey et al, 2017;Mariey et al, 2018;Khatab et al, 2019;and Hellal et al, 2019),Which they reported that Water stress treatments imposed at different growth stages reduced significantly the grain yield and yield components.…”

Section: Combined Performance Of Egyptian Barley Cultivarssupporting

confidence: 87%

“…Regarding total chlorophyll content, in our study we found that water stress had reduced the total Chl content in all cultivars under study. Similar investigations have been studies the response water stress barley such as (Filek et al, 2015;Mariey et al, 2017;Saade et al, 2018;khatab et al, 2019 andMarchetti et al, 2019) which They established that under water stress conditions, barley displays reduced chlorophyll content. However, the mechanisms that confer water stress tolerance and recovery capacity in this crop species are still not fully understood.…”

Section: Combined Performance Of Egyptian Barley Cultivarssupporting

confidence: 66%

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Genetic Diversity of Egyptian Barley Cultivars for Water Stress using SSR Markers

2020

Int. J. Environ.

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Abiotic stresses in particular water stress which was considered important stress that affecting all crops in all the world and Egypt. The aim of the present work was to evaluate the performance of 15 Egyptian barley cultivars and find out the genetic diversity of these cultivars for water stress tolerance using simple sequence repeats (SSR) during two consecutive seasons to detect their tolerance to water stress. Results revealed that the Egyptian barley Giza 126, Giza 131 and Giza 2000 were considered as tolerant cultivars, which they exhibited the highest mean values for all studied morphological and physiological traits. Twenty alleles were produced as a result of fingerprinting ten SSR primers ranging from one to four alleles per locus with a mean value of 2.0 alleles per locus .The PIC (Polymorphism Information Content) value of each SSR marker ranged from 0.23 (HvM67) to 0.58 (EBmac 624) with an average value of 0.227. Un-weighted Pair-Group Method with Arithmetic (UPGMA) cluster analysis of the similarity data grouped all the fifteen studied Egyptian cultivars into two major groups divided according to their response to water stress tolerance; first group include all the water stress tolerant cultivars and moderately tolerant in two closely related clusters, while all the sensitive genotypes and moderate cultivars in the other group were closely related in two clusters. These results proposed that SSR markers are professional and detective tool for assessment of genetic diversity and relatedness as well as distinguishing the Egyptian barley cultivars for water stress tolerance to use them in breeding program.

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Section: Results and Discussion 1 Analysis Of Variancesupporting

confidence: 93%

Section: Combined Performance Of Egyptian Barley Cultivarssupporting

confidence: 87%

Section: Combined Performance Of Egyptian Barley Cultivarssupporting

confidence: 66%

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Genetic Diversity of Egyptian Barley Cultivars for Water Stress using SSR Markers

2020

Int. J. Environ.

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“…The superiority of Giza 134 cultivar than Giza 132 cultivar because it is giving the highest average of weight of grain spike -1 , number of spikes m -2 (Table, 2) in both seasons. These results are in agreement with those reported by El-Banna et al (2011) and Mariey and Khedr (2017).…”

Section: Yield 21 Effect Of Barley Cultivarssupporting

confidence: 94%

“…Many investigators revealed that yield and its components were Moslim, et al, 2017 http://ajas.js.iknito.com/ significantly influenced by various barley cultivars (Ali, 2011 andMariey et al, 2016). In this regard, Mariey and Khedr (2017) revealed that the maximum values of grain yield were found for the cultivars Giza 2000, Giza 126 and Giza 131 were (14.13,13.16 and 11.53 t ha -1 ), respectively.…”

Section: Introductionmentioning

confidence: 99%

Response of Two Barley Cultivars to Partial Substitution of Mineral Fertilizers by Biofertilizers under New Valley Conditions

Moslim

Dawood

Abdel-Motagally

et al. 2017

AJAS

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A field experiments was carried out during of 2014/15 and 2015/16 seasons in the Experimental Farm, Agricultural Research Station of El-Kharga, New Valley Government to study the effects of partially substitution of chemical NPK fertilizers by biofertilizers on two barley cultivars production under New Valley conditions. Seven fertilizers combinations were tested as follows: F 1 : 100% of recommended NPK fertilizers, F 2 : 75% of recommended NPK fertilizers + Microbein, F 3 : 50% of recommended NPK fertilizers + Microbein, F 4 : 75% of recommended NPK fertilizers + Algae extract, F 5 : 50% of recommended NPK fertilizers + Algae extract, F 6 : 75% of recommended NPK fertilizers + Algae extract + Microbein, and F 7 : 50% of recommended NPK fertilizers + Algae extract + Microbein. Number of spikes m-2 , number of grains spike-1 , weight of 1000-grains, weight of grains spike-1 , biological yield fed-1 , grain yield fed-1 , straw yield fed-1 , and harvest index (%) were recorded at harvest. Results indicated that the superiority of Giza 134 cultivar over Giza 132 cultivar was confirmed for most studied traits in both seasons. Double-inoculation of Algae extract and Microbein plus 75% of recommended mineral NPK fertilizers represents 10.14, 18.50 and 16.19% increases in grain, straw and biological yields of barley in the first season; 8.91, 29.42 and 22.15% in the second season, respectively; compared to the application of 100% of recommended mineral NPK fertilizers alone. Giza 134 cultivar fertilized with 75% chemical NPK + Algae extract + Microbein (F 6) gave the highest grain yield (2.69 and 2.97 ton fed-1) and biological yield (8.38 and 9.43 ton fed-1) followed by 50% chemical NPK + Algae extract + Microbein (F 7) with the same cultivar (2.53 and 2.88 ton fed-1) and (8.16 and 8.95 ton fed-1), respectively. It can be concluded that replacing 25 or 50% of chemical fertilizers by doubleinoculation of Algae extract + Microbein as biofertilizers to improved yield and its components of Giza 132 and Giza 134 cultivars as well as saving about 25 to 50% of recommended dose of NPK.

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Screening of rice drought-tolerant lines by introducing a new composite selection index and competitive with multivariate methods

Sabouri

Dadras

Azari

et al. 2022

Sci Rep

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Selection and breeding for drought tolerance in rice have always been one of the leading objectives for rice breeders in water-deficient farming areas. In the present study, we applied the potential of recombinant inbred lines (RILs) population, which were derived from cross Shahpasand (Iranian landrace) and IR28, for the development of drought-tolerant rice lines. One hundred fifty-two lines along with five check varieties were investigated from 2017 to 2019 under non-stress and drought stress conditions. The yield reduction caused by drought based on overall mean during 2017, 2018, and 2019 were estimated to be 89.40, 57.95, and 35.31%, respectively. Using different statistical methods, certain lines, including L33, L90, and L109, which are considered as the best lines in most environments, were found to be promising for being utilized to increase rice drought tolerance. The averages of grain yield of the above-mentioned lines were respectively 6.45, 5.80, and 5.70 t ha−1 under non-stress condition, and respectively 2.77, 2.66, and 2.59 t ha−1 under drought stress condition. The yield reduction of the selected lines were significantly lower than that of others indicating the significant transgressive segregation. The results revealed using the combination of the best identified tolerance and susceptibility indices and GT-biplot are effective methods for screening superior lines. However, their utilization is not easy and requires specialized packages. For the first time, we introduced a new composite index as a combination of significant indices (CSI). CSI is in the form of a linear function of indices which effectiveness is determined by their correlation coefficient with grain yield. According to our results, using CSI, the identified rice drought-tolerant lines were in high agreement with those obtained by other methods, demonstrating that CSI is a simple but reliable composite index.

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Evaluation of Some Egyptian Barley Cultivars under Water Stress Conditions Using Drought Tolerance Indices and Multivariate Analysis

Cited by 13 publications

References 17 publications

Genetic Diversity of Egyptian Barley Cultivars for Water Stress using SSR Markers

Genetic Diversity of Egyptian Barley Cultivars for Water Stress using SSR Markers

Response of Two Barley Cultivars to Partial Substitution of Mineral Fertilizers by Biofertilizers under New Valley Conditions

Screening of rice drought-tolerant lines by introducing a new composite selection index and competitive with multivariate methods

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