Breeding Forages to Cope with Environmental Challenges in the Light of Climate Change and Resource Limitations

Helgadóttir, Á.; Østrem, Liv; Collins, R. P.; Humphreys, M. W.; Marshall, A. H.; Julier, Bernadette; Gastal, François; Barre, Ph.; Louarn, Gaëtan

doi:10.1007/978-3-319-28932-8_1

Cited by 4 publications

(5 citation statements)

References 39 publications

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“…In this study, fungal disease symptoms were rather low, suggesting that climatic conditions are still unfavorable for the early spread of fungal infections in forage crops in Lithuania [31,33]. Very similar trends have been observed in earlier studies on festulolium and perennial ryegrass in Lithuania [31,33], as well as in Norway and other Nordic countries [23,59]. A three-year study of fungal infections in perennial ryegrass in Estonia demonstrated a significant effect of cultivar and year on rust damage in tetraploid perennial ryegrass, whereas diploid cultivars were primarily damaged by leaf spot [60].…”

Section: Discussionsupporting

confidence: 88%

“…Projected and ongoing climate change challenges the employed agricultural practices for feed production [21,22]. In the temperate region, where Lithuania is located, the main limiting factor for high crop productivity is the rather short and moderately cool vegetative season accompanied by abiotic and biotic stresses [23]. Global warming resulting in increased annual average temperatures, shifted growing seasons, and milder winters could be beneficial in the form of increased potential for biomass production [24].…”

Section: Introductionmentioning

confidence: 99%

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Italian Ryegrass as a Forage Crop for the Baltics: Opportunities and Challenges in Light of Climate Change

Kemešytė,

Statkevičiūtė,

Norkevičienė

et al. 2023

Plants

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Grasslands are important for sustainable milk and meat production as well as for providing other ecosystem services. One of the most productive components of short-term grasslands is Italian ryegrass (Lolium multiflorum subsp. italicum Lam.), offering high yield, excellent feed value, and high palatability to animals but low tolerance to abiotic stress. Global climate warming opens new opportunities and could be beneficial in increasing the potential of biomass production. In this study, we aimed to assess an Italian ryegrass cultivar of Lithuanian origin, ‘Ugnė’, for productivity and yield stability, with special emphasis on their relationship with climatic factors over a period of 14 years. The average winter temperatures and total spring precipitation explained 51% of the first-cut dry matter yield (DMY) variance. Second- and third-cut DMYs were associated with average temperature only. Italian ryegrass cv. ‘Ugnė’ demonstrated the potential to produce high dry matter yields after warm winters and withstand summer drought spells under Lithuanian conditions. However, mid-to-late-summer heat waves might reduce productivity and should be taken into consideration when breeding new Italian ryegrass cultivars.

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Section: Discussionsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Italian Ryegrass as a Forage Crop for the Baltics: Opportunities and Challenges in Light of Climate Change

Kemešytė,

Statkevičiūtė,

Norkevičienė

et al. 2023

Plants

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“…With the climate changes observed in the past few years, the promotion of more sustainable agriculture that is adapted to different abiotic stresses has become imperative [1]. One challenge is to obtain more efficient cultivars that are adapted for low-fertility soils to mitigate the use of agricultural inputs, and consequently reducing environmental pollution and production costs [2].…”

Section: Introductionmentioning

confidence: 99%

Genetic effects on the efficiency and responsiveness to phosphorus use in popcorn as estimated by diallel analysis

Gerhardt

Amaral

Pena³

et al. 2019

PLoS ONE

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Agricultural expansion and the need for sustainable cultivation are challenges faced by researchers involved in the generation of new cultivars that can adapt to abiotic stress. Knowledge of the genetic effects of characteristics related to efficiency and responsiveness to phosphorus use must be considered when implementing methods to obtain better genotypes. The aim of this study was to characterize and select popcorn hybrids based on their efficiency and responsiveness to phosphorus use, and estimate their combining abilities and genetic effects via diallel analysis to implement improvement programs for sustainable agriculture. Eight contrasting inbred lines were used to obtain simple hybrids for diallel analysis. Twenty-eight diallelic hybrids plus the popcorn parental lines were evaluated at two different sites under two contrasting environments for soil phosphorus availability (6 × 6 lattice design). Grain yield, popping expansion, and volume of expanded popcorn per hectare were measured. A combined analysis of variance and a test of means were performed. The classification and utilization of the phosphorus use efficiency index, according to the grain yield performance of the hybrids under contrasting environments, was considered. Through model 2 of the Griffing’s diallel analysis method, the general and specific combining abilities were estimated, along with their environmental interactions. The best strategy to obtain genotypes that are efficient and responsive to phosphorus involves exploring popcorn hybrids using genitors that result in the accumulation of additive genes that promote popping expansion. Hybrids P7 × L80, P7 × L59, P7 × L76, and P6 × L80 presented promising results and may be evaluated as cultivation options in phosphorus-deficient soils.

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“…Among other issues, livestock in this region require the adoption of leguminous species to increase the quality of their diet, increase the availability of edaphic nitrogen and generate other environmental bene ts (Shelton et al 2005;Nichols et al 2007;Batello et al 2008;Schultze-Kraft et al 2018). Legumes should be included in breeding programs under a new paradigm that makes pro table production compatible with ecosystem services, especially in the face of changes in land use related to climate change (Stuber and Hancock 2008;Brummer et al 2011;Helgadóttir et al 2016). Of particular interest is the replacement of chemical fertilizers through biological nitrogen xation (BNF), which is essential for successful pasture establishment and production (Cooper 1977; Armstrong et al 1999;Byun et al 2004;Thrall et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Characterization of nodulation capacity with native rhizobia in germplasm of underutilized forage species of Macroptilium (Benth.) Urb.

Zabala,

Marinoni,

Zuber

et al. 2023

Preprint

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In order to generate reliable characterization and selection schemes in germplasm of Macroptilium for biological nitrogen fixation with native rhizobia, we carried out a trial to evaluate the germplasm variability for initial growth, crude protein in shoots and nodulation capacity with native soil of subtropical environment. The trial was carried out under two conditions, substrate with (N+) and without nitrogen added (N-). The growth variables and nitrogen content were analyzed through a nested ANOVA with the factors species (S), accessions nested within species (ANS), nitrogen level (NL) and the corresponding interactions. Because the plants did not nodulate in the N + treatment, a simple one-way ANOVA was performed in the N- treatment to analyze nodulation capacity. Relationships between variables and accessions were examined using principal component analysis. All accessions evaluated formed effective nodules in N- treatment. Accessions showed different initial growth and nitrogen content at different nitrogen levels. There was variability in the symbiotic response and initial growth, and most of the variance was explained by differences between ANS. Nodule number and nodule weight were related to Macroptilium plant dry matter and crude protein in shoots. Our hypotheses were confirmed in this work. In evaluated germplasm we found variability for nodulation capacity. In the other hand, nodulation capacity was related with biological nitrogen fixation (BNF), since the accessions with higher NC showed higher initial growth and higher protein content in shoot.

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Breeding Forages to Cope with Environmental Challenges in the Light of Climate Change and Resource Limitations

Cited by 4 publications

References 39 publications

Italian Ryegrass as a Forage Crop for the Baltics: Opportunities and Challenges in Light of Climate Change

Italian Ryegrass as a Forage Crop for the Baltics: Opportunities and Challenges in Light of Climate Change

Genetic effects on the efficiency and responsiveness to phosphorus use in popcorn as estimated by diallel analysis

Characterization of nodulation capacity with native rhizobia in germplasm of underutilized forage species of Macroptilium (Benth.) Urb.

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