Ecotypic variation of water-soluble carbohydrate concentration and winter hardiness in cocksfoot (Dactylis glomerata L.)

Yukitoshi, Sanada; Takai, Tomoyuki; Yamada, Toshihiko

doi:10.1007/s10681-006-9262-9

Cited by 28 publications

(28 citation statements)

References 29 publications

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“…However, there was no difference between the DSV and FRR populations for WSC at the US locations. These results are consistent with the report of Sanada et al [26], which also found that European orchardgrass sources generally exhibited a lower WSC than orchardgrass from other regions. Further studies of the genetics and GEI of WSC will be required to determine appropriate selection targets for increased WSC in different regions and to determine limits of WSC expression in orchardgrass germplasm.…”

Section: Discussionsupporting

confidence: 93%

“…The relationship between the WSC and disease is not well defined, but Sanada et al [26] found a negative relationship between rust infection and WSC. Thus, our results for WSC contradict this finding.…”

Section: Discussionmentioning

confidence: 99%

“…Sanada et al found significant differences in crown [13] and stubble WSC concentrations, and that WSC concentrations were related to winter hardiness and spring growth. Additionally they assessed European, Asian, and North American germplasm and found that European germplasm generally contained less WSC than other location sources [26]. Casler et al [10] also detected differences in forage productivity and quality traits between North American and European orchardgrass varieties, although WSC was not included in that study.…”

Section: Introductionmentioning

confidence: 95%

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Variation and Correlations among European and North American Orchardgrass Germplasm for Herbage Yield and Nutritive Value

et al. 2016

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Efforts to improve water-soluble carbohydrate (WSC) concentrations are common in perennial forage grass breeding. Perennial ryegrass (Lolium perenne) breeding has been very successful in developing new cultivars with high WSC and high agronomic performance. Breeding efforts are ongoing to improve the WSC of other perennial forage grasses, such as orchardgrass (Dactylis glomerata). The United States Department of Agriculture Forage and Range and Deutsche Saatveredelung orchardgrass breeding programs cooperated to characterize the expression and genotype by environment interaction (GEI) of water-soluble carbohydrates in a collection of orchardgrass populations from both breeding programs. Additionally, the effort characterized the relationship between water-soluble carbohydrates and other agronomic and nutritive value traits in these populations. Overall, the Deutsche Saatveredelung populations had higher herbage mass (15%), rust resistance (59%), and later maturity. The Forage and Range Research populations had higher water-soluble carbohydrates (4%), nutritive value, and earlier maturity. However, results were highly dependent on GEI. Differences were very pronounced at the French and German field locations, but less pronounced at the two US locations. Combining the germplasm from the Forage and Range Research and Deutsche Saatveredelung programs may be a way to develop an improved base germplasm source that could then be used separately in the EU and US for water-soluble carbohydrate and other trait improvement.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

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Variation and Correlations among European and North American Orchardgrass Germplasm for Herbage Yield and Nutritive Value

et al. 2016

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“…In regions with a long winter, a storage of organic reserves, particularly carbohydrates, are necessary for maintenance respiration, stress responses, and early spring regrowth. In addition, carbohydrates have specific roles as osmolytes and protectants of cellular components [13,40], and winter survival ability is often associated with a higher concentration of both simple sugars and fructans in the basal parts of the shoot attained during cold acclimation [64][65][66][67]. As described above, winter cereals maintain CO 2 -fixation rates at low temperatures due to photosynthetic acclimation, a mechanism, which combined with restrictions on leaf growth, ensures that a storage of carbohydrates is accumulating.…”

Section: The Role Of Photosynthates In Winter Survivalmentioning

confidence: 99%

Optimal Regulation of the Balance between Productivity and Overwintering of Perennial Grasses in a Warmer Climate

Ergon

2017

Agronomy

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Seasonal growth patterns of perennial plants are linked to patterns of acclimation and de-acclimation to seasonal stresses. The timing of cold acclimation (development of freezing resistance) and leaf growth cessation in autumn, and the timing of de-acclimation and leaf regrowth in spring, is regulated by seasonal cues in the environment, mainly temperature and light factors. Warming will lead to new combinations of these cues in autumn and spring. Extended thermal growing seasons offer a possibility for obtaining increased yields of perennial grasses at high latitudes. Increased productivity in the autumn may not be possible in all high latitude regions due to the need for light during cold acclimation and the need for accumulating a carbohydrate storage prior to winter. There is more potential for increased yields in spring due to the availability of light, but higher probability of freezing events in earlier springs would necessitate a delay of de-acclimation, or an ability to rapidly re-acclimate. In order to optimize the balance between productivity and overwintering in the future, the regulation of growth and acclimation processes may have to be modified. Here, the current knowledge on the coordinated regulation of growth and freezing resistance in perennial grasses is reviewed.

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“…Winter injury, often resulting in mortality, is one of the more limiting aspects of orchardgrass (Dactylis glomerata L.) production (Sanada et al 2007). At higher latitudes and elevations, orchardgrass is often replaced by species that are less susceptible to winter injury and mortality, such as tall fescue [Lolium arundinaceum (Schreb.)…”

mentioning

confidence: 99%

Variation and best linear unbiased predictors in a novel source of orchardgrass germplasm with increased winter hardiness

2017

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Evaluation of orchardgrass families at two Utah locations identified significant genetic variation for winter injury but not for flowering or biomass production. Repeatability estimates ranged from 0.06 (biomass production) to 0.65 (winter hardiness). This population has utility for the development of cultivars with increased winter hardiness.Key words: breeding, Dactylis glomerata, forage, genetics, grassland.Résumé : L'évaluation de familles de dactyle pelotonné à deux endroits en Utah a révélé une importante variation génétique au niveau de la destruction par l'hiver, mais pas de la floraison ni de la production de biomasse. On estime que la répétabilité se situe entre 0,06 (production de biomasse) et 0,65 (rusticité). Cette population a son utilité pour l'hybridation de cultivars plus rustiques. [Traduit par la Rédaction]

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Ecotypic variation of water-soluble carbohydrate concentration and winter hardiness in cocksfoot (Dactylis glomerata L.)

Cited by 28 publications

References 29 publications

Variation and Correlations among European and North American Orchardgrass Germplasm for Herbage Yield and Nutritive Value

Variation and Correlations among European and North American Orchardgrass Germplasm for Herbage Yield and Nutritive Value

Optimal Regulation of the Balance between Productivity and Overwintering of Perennial Grasses in a Warmer Climate

Variation and best linear unbiased predictors in a novel source of orchardgrass germplasm with increased winter hardiness

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