The relationship among freezing tolerance, vernalization requirement, <i>Ppd</i> alleles and winter hardiness in European wheat cultivars

Gorash, Andrii; Armoniené, Rita; Liatukas, Žilvinas; Brazauskas, Gintaras

doi:10.1017/s0021859617000521

Cited by 14 publications

(12 citation statements)

References 43 publications

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“…The frost tolerance of Eldija and Sarta was higher in most cases compared to other cultivars. The cultivar Kena DS was one of the most tolerant to frost in a range of Gorash et al (2017). Eldija and Sarta showed a higher frost tolerance (score 8.5) compared to the comprehensively investigated cultivar Kena DS (score 8.0).…”

Section: Original Papermentioning

confidence: 87%

Development of the new waxy winter wheat cultivars Eldija and Sarta

Liatukas¹,

Ruzgas²,

Gorash³

et al. 2021

Czech J. Genet. Plant Breed.

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Two new waxy winter wheat (Triticum aestivum L.) cultivars, Eldija and Sarta, were developed at the Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry and released in Lithuania in 2021. The cultivars were developed using waxy wheat material from Nebraska, the United States of America. The mean yield of Eldija and Sarta at five locations over three testing years was 7.56 and 7.21 t/ha or 79.63 and 75.95%, respectively, compared to the yield of the standard cultivars. Eldija and Sarta should be grown under high input conditions due to the relatively low resistance to leaf spot diseases and Fusarium head blight and medium tolerance to lodging. An amylose content of 0.68% and 0.36% of Eldija and Sarta, respectively, a very low falling number (about 60 s), a lower flour yield and higher water absorption compared to common wheat and the reaction to iodine staining (brown colour) characterised the new cultivars as fully waxy wheats. These cultivars are intended for the potential demand from commercial companies for special use in the food industry.

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Section: Original Papermentioning

confidence: 87%

Development of the new waxy winter wheat cultivars Eldija and Sarta

Liatukas¹,

Ruzgas²,

Gorash³

et al. 2021

Czech J. Genet. Plant Breed.

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“…The lines with the latter origins have though been reported to possess a higher winter hardiness than the lines from the mentioned North Western European countries (Würschum et al, 2017) as, e.g., lines from the United Kingdom are generally higher yielding though less winter hardy as low temperatures are not a major restriction in many growing areas of Great Britain. Hence, the relationship between winter hardiness and grain yield is most likely dependent on the investigated set of lines and their adaptation with regard to winter hardiness and photoperiod sensitivity to specific environments (Gorash et al, 2017). A trade-off between grain yield and frost tolerance was also regularly seen during routine applications of genomic selection in the breeding program from which the here presented data were derived.…”

Section: Discussionmentioning

confidence: 99%

Improving and Maintaining Winter Hardiness and Frost Tolerance in Bread Wheat by Genomic Selection

Michel

Löschenberger²,

Hellinger

et al. 2019

Front. Plant Sci.

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Winter hardiness is a major constraint for autumn sown crops in temperate regions, and thus an important breeding goal in the development of new winter wheat varieties. Winter hardiness is though influenced by many environmental factors rendering phenotypic selection under field conditions a difficult task due to irregular occurrence or absence of winter damage in field trials. Controlled frost tolerance tests in growth chamber experiments are, on the other hand, even with few genotypes, often costly and laborious, which makes a genomic breeding strategy for early generation selection an attractive alternative. The aims of this study were thus to compare the merit of marker-assisted selection using the major frost tolerance QTL Fr-A2 with genomic prediction for winter hardiness and frost tolerance, and to assess the potential of combining both measures with a genomic selection index using a high density marker map or a reduced set of pre-selected markers. Cross-validation within two training populations phenotyped for frost tolerance and winter hardiness underpinned the importance of Fr-A2 for frost tolerance especially when upweighting its effect in genomic prediction models, while a combined genomic selection index increased the prediction accuracy for an independent validation population in comparison to training with winter hardiness data alone. The prediction accuracy could moreover be maintained with pre-selected marker sets, which is highly relevant when employing cost reducing fingerprinting techniques such as targeted genotyping-by-sequencing. Genomic selection showed thus large potential to improve or maintain the performance of winter wheat for these difficult, costly, and laborious to phenotype traits.

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“…Vernalization, a period of cold temperatures, is required in winter varieties to stop vegetative growth and reach flowering in time to attain good yields (Deng et al, 2015). Furthermore, vernalization is considered a critical trait due to its association with winter hardiness, i.e., the capacity for surviving and avoiding damage caused by winter frosts (Cuesta-Marcos et al, 2015;Gorash et al, 2017;Hayes et al, 1997;Saisho et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Assessing different barley growth habits under Egyptian conditions for enhancing resilience to climate change

Mansour

Moustafa

Qabil

et al. 2018

Field Crops Research

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Climate change poses challenges to agricultural production in general and to plant breeders in particular. Adaptation of cereals to the new conditions and increasingly variable situations arising from this process is essential to reduce risks and limit potential threats associated with climate hazards. This study presents the first attempt to assess the response and resilience of barley genotypes, with different growth habits across Egypt. For this purpose, eight field trials were conducted from 2013 to 2016 at three experimental sites with different winter climate configurations. The trials were sown at the end of November, following recommendations for the region. Fourteen barley genotypes were evaluated, comprising seven commercial Egyptian cultivars and seven European genotypes. The European genotypes were selected from successful cultivars from Spain, encompassing a range of growth types: two spring, three intermediate and two winter types. The cultivars were genotyped for six major adaptation genes, Vrn-H1-2-3, Ppd-H1-2 and HvCEN. One interesting finding is that, while the Egyptian cultivars were assumed to be of spring growth type, our results demonstrate that two cultivars, namely Giza123 and Giza126, are actually intermediate types (needing just a short period of vernalization). They contain the winter allele at Vrn-H2 together with Vrn-H1-4, the same as the European genotypes Cierzo and Orria, they also have an active allele at PpdH2, such as Hispanic. Overall, these four genotypes showed very good performance in all trials with low genotype-by-environment interaction. Moreover, a foreign late spring genotype (Pewter) was highly productive and a winter genotype (Hispanic) flowered as early as some intermediate and spring genotypes with a yield similar to genotypes currently grown in Egypt. A possible explanation for this surprising occurrence, the influence of an active allele at PpdH2 in winter cultivars, is discussed. In relation to low temperature, a high frequency of cold nights during wintertime was observed at all experimental sites, which seemed sufficient to promote timely flowering for intermediate genotypes, although this was inadequate for promoting flowering and achieving good productivity in strictly winter genotypes (e.g. Barberousse). Our findings also highlight the potential of exotic germplasm for breeding better and more resilient cultivars for autumn and for achieving good yield levels in regions with warm winters like Egypt. The results also provide insights into the usefulness of genetic variation in growth habit for breeders seeking adaptation to climate change conditions.

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The relationship among freezing tolerance, vernalization requirement, Ppd alleles and winter hardiness in European wheat cultivars

Cited by 14 publications

References 43 publications

Development of the new waxy winter wheat cultivars Eldija and Sarta

Development of the new waxy winter wheat cultivars Eldija and Sarta

Improving and Maintaining Winter Hardiness and Frost Tolerance in Bread Wheat by Genomic Selection

Assessing different barley growth habits under Egyptian conditions for enhancing resilience to climate change

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