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  1. Article ; Online: Prevalence of undernutrition and associated factors among children aged 6-23 months: a cross-sectional analysis from South-East Ethiopia.

    Ararsa, Gosa Girma / Getachew, Meheret Tena / Diddana, Tona Zema / Alemayehu, Fikadu Reta

    Journal of nutritional science

    2023  Volume 12, Page(s) e127

    Abstract: To meet the 2030 goal to end all types of malnutrition, thoroughly investigating and addressing context-specific factors of undernutrition is crucial. Therefore, this study assessed the prevalence of undernutrition and associated factors among children ... ...

    Abstract To meet the 2030 goal to end all types of malnutrition, thoroughly investigating and addressing context-specific factors of undernutrition is crucial. Therefore, this study assessed the prevalence of undernutrition and associated factors among children aged 6-23 months in South-East Ethiopia. A community-based cross-sectional study was conducted on 580 randomly sampled mother-child pairs in February 2022. Socio-demographic, dietary intake, household food security (HFS), maternal knowledge and practices of child feeding, and the child's weight and height data were collected. A multivariable logistic regression analysis was done. The prevalence of stunted, wasted, and underweight children was 32⋅1, 7, and 9 %, respectively. Being male (AOR = 1⋅75), not using the growth monitoring and promotion (GMP) service (AOR = 1⋅50), household food insecurity (HFI) (AOR = 1⋅67), lack of improved water (AOR = 2⋅26), and bottle-feeding (AOR = 1⋅54) were significantly associated with stunting. Being male (AOR = 3⋅02), having low maternal knowledge on child-feeding practices (AOR = 3⋅89), not listening to the radio/television (AOR = 3⋅69), having a history of fever (AOR = 3⋅39), bottle-feeding (AOR = 3⋅58), and HFI (AOR = 3⋅77) were significantly predicted wasting. Being male (AOR = 3⋅44), not using GMP service (AOR = 2⋅00), having a history of fever (AOR = 4⋅24), lack of knowledge on optimal breastfeeding duration (AOR = 3⋅58), low maternal knowledge on child feeding (AOR = 2⋅21), HFI (AOR = 2⋅04), and lack of improved water (AOR = 3⋅00) showed significant association with underweight. In conclusion, stunting is alarmingly common while wasting and underweight are sub-optimal. Prevention of infectious disease, providing basic education for fathers, ensuring HFS; enhancing media access, maternal knowledge about IYCFP and improving water access; and GMP service utilisation are crucial to improve child nutrition.
    MeSH term(s) Female ; Humans ; Male ; Cross-Sectional Studies ; Nutritional Status ; Thinness/epidemiology ; Ethiopia/epidemiology ; Prevalence ; Malnutrition/epidemiology ; Growth Disorders/epidemiology ; Water
    Chemical Substances Water (059QF0KO0R)
    Language English
    Publishing date 2023-12-27
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2656288-1
    ISSN 2048-6790 ; 2048-6790
    ISSN (online) 2048-6790
    ISSN 2048-6790
    DOI 10.1017/jns.2023.109
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Zinc deficiency among pregnant women around Lake Awasa, Hawassa City, Ethiopia: a cross-sectional analysis.

    Alemu, Gezahegn / Diddana, Tona Zema / Bosha, Tafese / Alemu, Tagel / Alemayehu, Fikadu Reta / Hailemariam, Hailu / Daba, Alemneh Kabeta / Getachew, Mahilet

    Journal of nutritional science

    2022  Volume 11, Page(s) e102

    Abstract: Zinc deficiency (ZD) during pregnancy has far-reaching consequences on the mother, fetus and subsequent child survival. Therefore, the present study aimed to assess the prevalence and associated factors of ZD among pregnant women around Lake Awasa, ... ...

    Abstract Zinc deficiency (ZD) during pregnancy has far-reaching consequences on the mother, fetus and subsequent child survival. Therefore, the present study aimed to assess the prevalence and associated factors of ZD among pregnant women around Lake Awasa, Hawassa City, Ethiopia. To this end, a facility-based cross-sectional study was conducted on 333 randomly sampled pregnant women from 08 April to 08 May 2021. The socio-economic, dietary intake, water, sanitation and hygiene, obstetric, and maternal health data were collected through face-to-face interviews. Moreover, on-spot blood and stool samples were taken. Descriptive statistics and binary and multivariable logistic regression analysis were conducted. The prevalence of ZD was 58⋅6 % (95 % CI 53⋅31, 63⋅89). The poorest (AOR = 3⋅28; 95 % CI 1⋅26, 8⋅50) and poor (AOR = 2⋅93; 95 % CI 1⋅14, 7⋅54) wealth quintiles, four of more family size (AOR = 1⋅84, 95 % CI 1⋅10, 3⋅35), poor dietary diversity (AOR = 4⋅11; 95 % CI 2⋅11, 7⋅62), not eating snacks (AOR = 3⋅40; 95 % CI 1⋅42, 8⋅15), not consuming fish (AOR = 3⋅53; 95 % CI 1⋅65, 7⋅56) and chicken (AOR = 2⋅53; 95 % CI 1⋅31, 4⋅88) at least once a month, and intestinal parasitic infection (AOR = 2⋅78; 95 % CI 1⋅52, 5⋅08) predicted zinc deficiency. In conclusion, ZD is a public health problem among pregnant women around Lake Awasa. The present study demonstrated that poor socio-economic status, large family size, poor nutritional practices and intestinal parasitic infection determine the zinc status in the present study area. The findings suggest the need for further analysis to deepen the understanding about ZD and consideration of livelihood in interventions to prevent and control ZD among pregnant women in Hawassa City, Ethiopia.
    MeSH term(s) Female ; Humans ; Pregnancy ; Animals ; Cross-Sectional Studies ; Pregnant Women ; Lakes ; Ethiopia/epidemiology ; Malnutrition ; Zinc ; Parasitic Diseases
    Chemical Substances Zinc (J41CSQ7QDS)
    Language English
    Publishing date 2022-11-23
    Publishing country England
    Document type Journal Article
    ZDB-ID 2656288-1
    ISSN 2048-6790 ; 2048-6790
    ISSN (online) 2048-6790
    ISSN 2048-6790
    DOI 10.1017/jns.2022.104
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Vitamin D binding protein gene polymorphisms are associated with lower plasma 25-hydroxy-cholecalciferol concentrations in Ethiopian lactating women.

    Hart, Matthew D / Girma, Meron / Strong, Morgan D / Tadesse, Birkneh Tilahun / Taddesse, Biruk Mulugeta / Alemayehu, Fikadu Reta / Stoecker, Barbara J / Chowanadisai, Winyoo

    Nutrition research (New York, N.Y.)

    2022  Volume 107, Page(s) 86–95

    Abstract: Ethiopian women have been reported to have low plasma 25-hydroxy-cholecalciferol (25(OH)D) concentrations despite an abundance of sunshine. Low dietary vitamin D intake, limited skin exposure to sun, and genetics are among factors suggested to affect ... ...

    Abstract Ethiopian women have been reported to have low plasma 25-hydroxy-cholecalciferol (25(OH)D) concentrations despite an abundance of sunshine. Low dietary vitamin D intake, limited skin exposure to sun, and genetics are among factors suggested to affect vitamin D status in this population. In this study (Clinical Trial NCT02210884), we hypothesized that polymorphisms in the vitamin D binding protein (VDBP) gene (rs7041, rs4588) are associated with reduced plasma 25(OH)D concentrations in Ethiopian women. Lactating Ethiopian women (n = 110) were randomly assigned to weekly administration of vitamin D3 (15,000 IU) or a placebo. Plasma 25(OH)D was measured at baseline (within 2 weeks of delivery, before supplementation) and at 3, 6, and 12 months after delivery. Associations between VDBP polymorphism status for rs7041 and rs4588 and plasma 25(OH)D were determined by analysis of variance and multiple linear and logistic regressions. Multiple linear regression with maternal age as a covariate revealed that rs7041 is associated with reduced plasma 25(OH)D (P = .021) and more risk alleles at rs7041 and rs4588 are associated with reduced plasma 25(OH)D (P = .017). Logistic regression models for vitamin D insufficiency showed that additional risk alleles for rs7041 and rs4588 are associated with increased odds ratios (OR = 1.66; 95% CI, 1.10-2.62; P = .019) for plasma 25(OH)D below 40 nmol/L. Supplementation increased plasma 25(OH)D at 3 months in women with fewer risk alleles and across all genotypes at 6 and 12 months. VDBP polymorphisms may contribute to vitamin D insufficiency in Ethiopian lactating women. Furthermore, VDBP polymorphisms may blunt short-term responses to vitamin D supplementation and require longer periods of intervention.
    MeSH term(s) Female ; Humans ; Calcifediol/blood ; Cholecalciferol ; Ethiopia ; Lactation ; Polymorphism, Single Nucleotide ; Vitamin D ; Vitamin D Deficiency ; Vitamin D-Binding Protein/genetics
    Chemical Substances Calcifediol (P6YZ13C99Q) ; Cholecalciferol (1C6V77QF41) ; Vitamin D (1406-16-2) ; Vitamin D-Binding Protein ; GC protein, human
    Language English
    Publishing date 2022-09-14
    Publishing country United States
    Document type Randomized Controlled Trial ; Journal Article
    ZDB-ID 582432-1
    ISSN 1879-0739 ; 0271-5317
    ISSN (online) 1879-0739
    ISSN 0271-5317
    DOI 10.1016/j.nutres.2022.09.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Vitamin D Binding Protein Gene Polymorphisms Are Associated with Lower Plasma 25-Hydroxy-Cholecalciferol Concentrations in Ethiopian Lactating Women

    Hart, Matthew D. / Girma, Meron / Strong, Morgan D. / Tadesse, Birkneh Tilahun / Taddesse, Biruk Mulugeta / Alemayehu, Fikadu Reta / Stoecker, Barbara J. / Chowanadisai, Winyoo

    Nutrition research. 2022 Sept. 03,

    2022  

    Abstract: Ethiopian women have been reported to have low plasma 25-hydroxy- cholecalciferol (25(OH)D) concentrations despite an abundance of sunshine. Low dietary vitamin D intake, limited skin exposure to sun, and genetics are among factors suggested to affect ... ...

    Abstract Ethiopian women have been reported to have low plasma 25-hydroxy- cholecalciferol (25(OH)D) concentrations despite an abundance of sunshine. Low dietary vitamin D intake, limited skin exposure to sun, and genetics are among factors suggested to affect vitamin D status in this population. In this study (Clinical Trial NCT02210884), we hypothesized that polymorphisms in the vitamin D binding protein (VDBP) gene (rs7041, rs4588) are associated with reduced plasma 25(OH)D concentrations in Ethiopian women. Lactating Ethiopian women (n=110) were randomly assigned to weekly administration of vitamin D3 (15,000 IUs) or a placebo. Plasma 25(OH)D was measured at baseline (within 2 weeks of delivery, before supplementation) and at 3, 6, and 12 months after delivery. Associations between VDBP polymorphism status for rs7041 and rs4588 and plasma 25(OH)D were determined by ANOVA and multiple linear and logistic regressions. Multiple linear regression with maternal age as a covariate revealed that rs7041 is associated with reduced plasma 25(OH)D (p=0.021) and more risk alleles at rs7041 and rs4588 are associated with reduced plasma 25(OH)D (p=0.017). Logistic regression models for vitamin D insufficiency showed that additional risk alleles for rs7041 and rs4588 are associated with increased odds ratios (OR=1.66, 95% CI 1.10-2.62, p=0.019) for plasma 25(OH)D below 40 nmol/L. Supplementation increased plasma 25(OH)D at 3 months in women with fewer risk alleles and across all genotypes at 6 and 12 months. VDBP polymorphisms may contribute to vitamin D insufficiency in Ethiopian lactating women. Furthermore, VDBP polymorphisms may blunt short-term responses to vitamin D supplementation and require longer periods of intervention.
    Keywords cholecalciferol ; clinical trials ; dermal exposure ; genes ; nutrition research ; placebos ; regression analysis ; risk ; solar radiation
    Language English
    Dates of publication 2022-0903
    Publishing place Elsevier Inc.
    Document type Article
    Note Pre-press version
    ZDB-ID 582432-1
    ISSN 1879-0739 ; 0271-5317
    ISSN (online) 1879-0739
    ISSN 0271-5317
    DOI 10.1016/j.nutres.2022.09.003
    Database NAL-Catalogue (AGRICOLA)

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  5. Article: Cost-Minimized Nutritionally Adequate Food Baskets as Basis for Culturally Adapted Dietary Guidelines for Ethiopians

    Gurmu, Abdi Bekele / Nykänen, Esa-Pekka A / Alemayehu, Fikadu Reta / Robertson, Aileen / Parlesak, Alexandr

    Nutrients. 2019 Sept. 09, v. 11, no. 9

    2019  

    Abstract: The high prevalence of undernutrition, especially stunting, in Ethiopia hampers the country’s economic productivity and national development. One of the obstacles to overcome undernutrition is the relatively high cost of food for low economic groups. In ... ...

    Abstract The high prevalence of undernutrition, especially stunting, in Ethiopia hampers the country’s economic productivity and national development. One of the obstacles to overcome undernutrition is the relatively high cost of food for low economic groups. In this study, linear programming was used to (i) identify urban and rural nutritionally adequate food baskets (FBs) with the highest affordability for an Ethiopian family of five and (ii) create urban and rural FBs, optimized for cultural acceptability, which are affordable for a family with the lowest income. Nutritionally adequate rural and urban FBs with highest affordability cost as little as Ethiopian Birr (ETB) 31 and 38 (~USD 1.07 and 1.31), respectively, but have poor dietary diversity (16 and 19 foods). FBs that cost ETB 71.2 (~USD 2.45) contained 64 and 48 foods, respectively, and were much more similar to the food supply pattern reported by FAO (15% and 19% average relative deviation per food category). The composed FBs, which are affordable for the greater part of the Ethiopian population, may serve as a basis for the development of culturally acceptable food-based dietary guidelines. These guidelines would recommend a diet composed of approximately up to 60% cereals, up to 20% roots and tubers, 10% legumes, and 10% fruits and vegetables by weight, plus only a small share from animal foods.
    Keywords Dietary Guidelines ; Food and Agriculture Organization ; affordability ; diet ; economic productivity ; feeds ; food availability ; food prices ; foods ; fruits ; grains ; growth retardation ; guidelines ; income ; legumes ; linear programming ; malnutrition ; nutritional adequacy ; roots ; tubers ; vegetables ; Ethiopia
    Language English
    Dates of publication 2019-0909
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2518386-2
    ISSN 2072-6643
    ISSN 2072-6643
    DOI 10.3390/nu11092159
    Database NAL-Catalogue (AGRICOLA)

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  6. Article: Influence of fermentation time on proximate composition and microbial loads of Enset, (

    Desta, Derese Tamiru / Kelikay, Gezhagn Nigusse / Zekwos, Meskelu / Eshete, Mesfin / Reda, Hailu Hailemariam / Alemayehu, Fikadu Reta / Zula, Aemiro Tadesse

    Food science & nutrition

    2021  Volume 9, Issue 10, Page(s) 5641–5647

    Abstract: In southern Ethiopian households, kocho is one of the staple foods which can be kept longer and fermented naturally using locally prepared pits, but evidence about the influences of fermentation of kocho at a different time and agroecology on proximate ... ...

    Abstract In southern Ethiopian households, kocho is one of the staple foods which can be kept longer and fermented naturally using locally prepared pits, but evidence about the influences of fermentation of kocho at a different time and agroecology on proximate compositions and microbial loads are limited. Fermented kocho samples at different fermentation times were collected from highland and midland districts of Sidama region of Ethiopia. The standard procedure of AOAC (2005) method was followed. Four microbiological load analyses were conducted. Factorial analysis using JMP 13 was conducted. Across the fermentation time, total carbohydrate, ash, crude protein, and crude fat ranged 36%-40%, 1.9%-3.2%, 3%-4.3%, and 0.1%-0.3%, respectively. The highest total ash content was observed in week one of fermentation both in midland and highland samples. However, in midland, the increment of fermentation time showed a reduction of total ash percentage. Crude protein and fat were observed similar both in midland and highland (
    Language English
    Publishing date 2021-08-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2703010-6
    ISSN 2048-7177
    ISSN 2048-7177
    DOI 10.1002/fsn3.2527
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Cost-Minimized Nutritionally Adequate Food Baskets as Basis for Culturally Adapted Dietary Guidelines for Ethiopians.

    Gurmu, Abdi Bekele / Nykänen, Esa-Pekka A / Alemayehu, Fikadu Reta / Robertson, Aileen / Parlesak, Alexandr

    Nutrients

    2019  Volume 11, Issue 9

    Abstract: The high prevalence of undernutrition, especially stunting, in Ethiopia hampers the country's economic productivity and national development. One of the obstacles to overcome undernutrition is the relatively high cost of food for low economic groups. In ... ...

    Abstract The high prevalence of undernutrition, especially stunting, in Ethiopia hampers the country's economic productivity and national development. One of the obstacles to overcome undernutrition is the relatively high cost of food for low economic groups. In this study, linear programming was used to (i) identify urban and rural nutritionally adequate food baskets (FBs) with the highest affordability for an Ethiopian family of five and (ii) create urban and rural FBs, optimized for cultural acceptability, which are affordable for a family with the lowest income. Nutritionally adequate rural and urban FBs with highest affordability cost as little as Ethiopian Birr (ETB) 31 and 38 (~USD 1.07 and 1.31), respectively, but have poor dietary diversity (16 and 19 foods). FBs that cost ETB 71.2 (~USD 2.45) contained 64 and 48 foods, respectively, and were much more similar to the food supply pattern reported by FAO (15% and 19% average relative deviation per food category). The composed FBs, which are affordable for the greater part of the Ethiopian population, may serve as a basis for the development of culturally acceptable food-based dietary guidelines. These guidelines would recommend a diet composed of approximately up to 60% cereals, up to 20% roots and tubers, 10% legumes, and 10% fruits and vegetables by weight, plus only a small share from animal foods.
    MeSH term(s) Culturally Competent Care/economics ; Culturally Competent Care/methods ; Diet/economics ; Diet/methods ; Ethiopia/epidemiology ; Food Supply/economics ; Humans ; Malnutrition/diet therapy ; Malnutrition/economics ; Malnutrition/epidemiology ; Nutrition Policy/economics ; Poverty/economics ; Programming, Linear ; Rural Population ; Urban Population
    Language English
    Publishing date 2019-09-09
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2518386-2
    ISSN 2072-6643 ; 2072-6643
    ISSN (online) 2072-6643
    ISSN 2072-6643
    DOI 10.3390/nu11092159
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Can barley (Hordeum vulgare L. s.l.) adapt to fast climate changes? A controlled selection experiment

    Alemayehu, Fikadu Reta / Frenck, Georg / van der Linden, Leon / Mikkelsen, Teis Nørgaard / Jørgensen, Rikke Bagger

    Genetic resources and crop evolution. 2014 Jan., v. 61, no. 1

    2014  

    Abstract: The projected future climate will affect the global agricultural production negatively, however, to keep abreast of the expected increase in global population, the agricultural production must increase. Therefore, to safeguard the future crop yield and ... ...

    Abstract The projected future climate will affect the global agricultural production negatively, however, to keep abreast of the expected increase in global population, the agricultural production must increase. Therefore, to safeguard the future crop yield and quality, the adaptive potential of crops to environmental change needs to be explored in order to select the most productive genotypes. Presently, it is unknown whether cereal crops like spring barley can adapt to climate stressors over relatively few generations. To evaluate if strong selection pressures could change the performance of barley to environmental stress, we conducted a selection experiment over five plant generations (G0–G4) in three scenarios, where atmospheric [CO₂] and temperature were increased as single factors and in combination. The treatments represented the expected environmental characteristics in Northern Europe around year 2075 [700� ppm CO₂, 22/17� °C (day/night)] as well as a control mimicking present day conditions (390� ppm CO₂, 19/12� °C). Two different barley accessions, a modern cultivar and an old landrace, were evaluated in terms of yield and biomass production. In all treatments representing future environmental scenarios, the G4-generation of selected plants did not improve its reproductive output compared to the G0-generation, as G4 produced less seeds and had a lower yield than unselected plants. These results indicate that barley might not respond positively to rapid and strong selection by elevated [CO₂] and temperature, contrary to previous results from oilseed rape. The two barley accessions analyzed presented almost the same response pattern in a given treatment, though the modern cultivar had the highest yield in the climate scenarios, while the landrace was superior in yield under present day climate conditions.
    Keywords Brassica napus var. napus ; Hordeum vulgare ; biomass production ; carbon dioxide ; climate ; crop yield ; cultivars ; genotype ; grain crops ; landraces ; reproductive performance ; seeds ; spring barley ; temperature ; Northern European region
    Language English
    Dates of publication 2014-01
    Size p. 151-161.
    Publishing place Springer-Verlag
    Document type Article
    ZDB-ID 1134125-7
    ISSN 0925-9864
    ISSN 0925-9864
    DOI 10.1007/s10722-013-0021-1
    Database NAL-Catalogue (AGRICOLA)

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  9. Article: Aflatoxin exposure among lactating women in southern Ethiopia

    Boshe, Bergene / Gebreselassie, Samson / Alemayehu, Fikadu Reta / Eshete, Mesfin / Taye Asfaw, Mestawet / Stoecker, Barbara

    Food Science & Nutrition, 8(12):6738-6745

    2020  

    Abstract: In Ethiopia and many other low-income countries, little is known about the exposure of lactating women to aflatoxin, which is a major health concern to the mother and her nursing infant. We determined the aflatoxin B1 contamination of family foods (AFB1) ...

    Abstract In Ethiopia and many other low-income countries, little is known about the exposure of lactating women to aflatoxin, which is a major health concern to the mother and her nursing infant. We determined the aflatoxin B1 contamination of family foods (AFB1) and urinary aflatoxin M1 (AFM1) of lactating women in Sidama, southern Ethiopia, and compared the levels across agroecological settings (lowland, midland, highland) and two seasons. We conducted two surveys (n = 360) that represented the dry and wet seasons of the locality. AFM1 and AFB1 were determined using enzyme-linked immunosorbent assay (ELISA). Statistical analysis was made using Mann–Whitney U test and Kruskal–Wallis test. The median (interquartile range) AFB1 was 0.94 (0.63–1.58) ppb. AFB1 was detected in 95.6% of the food samples, and 13.6% exceeded the 2.0 ppb threshold. We observed an increasing trend for aflatoxin exposure from highland to lowland (p < .001), but there was no difference between seasons (p = .743). The median (interquartile range) urinary AFM1 was 214 (undetectable to 2,582) ppt, and AFM1 was detectable in 53.3% of the samples. Urinary AFM1 showed significant difference among agroecological zones (p < .001) but not between seasons (p = .275). A significant but weak correlation was observed between AFB1 and urinary AFM1 (rs = 0.177, p = .001). We concluded that lactating women in Sidama, especially those in the lowland area, have unsafe exposure to aflatoxin.
    Keywords Aflatoxin B1 ; agroecology ; food ; lactating women ; seasonality ; urinary aflatoxin M1
    Language English
    Document type Article
    Database Repository for Life Sciences

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  10. Article: Can barley (Hordeum vulgare L. s.l.) adapt to fast climate changes? A controlled selection experiment

    Alemayehu, Fikadu Reta / Frenck, Georg / van der Linden, Leon / Mikkelsen, Teis Nørgaard / Jørgensen, Rikke Bagger

    Genetic resources and crop evolution

    Volume v. 61,, Issue no. 1

    Abstract: The projected future climate will affect the global agricultural production negatively, however, to keep abreast of the expected increase in global population, the agricultural production must increase. Therefore, to safeguard the future crop yield and ... ...

    Abstract The projected future climate will affect the global agricultural production negatively, however, to keep abreast of the expected increase in global population, the agricultural production must increase. Therefore, to safeguard the future crop yield and quality, the adaptive potential of crops to environmental change needs to be explored in order to select the most productive genotypes. Presently, it is unknown whether cereal crops like spring barley can adapt to climate stressors over relatively few generations. To evaluate if strong selection pressures could change the performance of barley to environmental stress, we conducted a selection experiment over five plant generations (G0–G4) in three scenarios, where atmospheric [CO₂] and temperature were increased as single factors and in combination. The treatments represented the expected environmental characteristics in Northern Europe around year 2075 [700� ppm CO₂, 22/17� °C (day/night)] as well as a control mimicking present day conditions (390� ppm CO₂, 19/12� °C). Two different barley accessions, a modern cultivar and an old landrace, were evaluated in terms of yield and biomass production. In all treatments representing future environmental scenarios, the G4-generation of selected plants did not improve its reproductive output compared to the G0-generation, as G4 produced less seeds and had a lower yield than unselected plants. These results indicate that barley might not respond positively to rapid and strong selection by elevated [CO₂] and temperature, contrary to previous results from oilseed rape. The two barley accessions analyzed presented almost the same response pattern in a given treatment, though the modern cultivar had the highest yield in the climate scenarios, while the landrace was superior in yield under present day climate conditions.
    Keywords Hordeum vulgare ; crop yield ; Brassica napus var. napus ; genotype ; temperature ; biomass production ; carbon dioxide ; grain crops ; spring barley ; cultivars ; seeds ; reproductive performance ; climate ; landraces
    Language English
    Document type Article
    ISSN 0925-9864
    Database AGRIS - International Information System for the Agricultural Sciences and Technology

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