scholarly journals Genotype by Environment Interaction on Grain Yield Stability and Iron and Zinc Content in OPV of Pearl Millet in Ghana Using the AMMI Method

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Peter Anabire Asungre ◽  
Richard Akromah ◽  
Alexander Wireko Kena ◽  
Prakash Gangashetty
Keyword(s):  
Grain Yield ◽  
Pearl Millet ◽  
Coefficient Of Variation ◽  
Pennisetum Glaucum ◽  
Zinc Content ◽  
Genotype By Environment Interaction ◽  
Phenotypic Variance ◽  
Environment Interaction ◽  
Fe Content ◽  
Iron And Zinc

Twenty-two open-pollinated varieties (OPVs) of pearl millet (Pennisetum glaucum) genotypes were tested in two locations for three seasons in Ghana to estimate the magnitude of genetic variability, heritability, and stability for grain yield and related traits and grain micronutrients among the varieties. General analysis of variance within and across locations and years revealed very highly significant variability ( p < 0.01 ) among the genotypes. The additive main effects and multiplicative interaction (AMMI) analyses revealed significant genotype × environment interaction (GEI) that influenced the relative ranking of genotypes across the environments. Genotypic variance ( σ 2 g ) contributed a greater proportion of the phenotypic variance (σ2p) for plant height (530.31) and grain Fe content (34.72). Broad-sense heritability ( h b s 2 ) varied widely from 24.82% for grain yield to 77.53% in days to flower. Phenotypic coefficient of variation (PCV) was higher than genotypic coefficient of variation (GCV) for all traits, indicating strong play of environment on trait expressions. 11 out of the 22 OPVs were stable for grain yield and micronutrients across environments for the three-year period and included GB 8735 and ICMV 221 Wbr and SOSAT-C88.

scholarly journals Performance and Stability of Pearl Millet Varieties for Grain Yield and Micronutrients in Arid and Semi-Arid Regions of India

2021 ◽  
Vol 12 ◽  
Author(s):  
P. Sanjana Reddy ◽  
C. Tara Satyavathi ◽  
Vikas Khandelwal ◽  
H. T. Patil ◽  
P. C. Gupta ◽  
...  
Keyword(s):  
Grain Yield ◽  
Pearl Millet ◽  
Agronomic Traits ◽  
Pennisetum Glaucum ◽  
Hybrid Vigor ◽  
Environment Interaction ◽  
Genotypic Effect ◽  
Iron And Zinc ◽  
Pearl Millet Cultivars ◽  
Semi Arid

Pearl millet [Pennisetum glaucum (L.) R. Br.] is grown under both arid and semi-arid conditions in India, where other cereals are hard to grow. Pearl millet cultivars, hybrids, and OPVs (open pollinated varieties) are tested and released by the All India Coordinated Research Project on Pearl Millet (AICRP-PM) across three zones (A1, A, and B) that are classified based on rainfall pattern. Except in locations with extreme weather conditions, hybrids dominate pearl millet growing areas, which can be attributed to hybrid vigor and the active role of the private sector. The importance of OPVs cannot be ruled out, owing to wider adaptation, lower input cost, and timely seed availability to subsidiary farmers cultivating this crop. This study was conducted to scrutinize the presently used test locations for evaluation of pearl millet OPVs across India, identify the best OPVs across locations, and determine the variation in grain Fe and Zn contents across locations in these regions. Six varieties were evaluated across 20 locations in A1 and A (pooled as A) and B zones along with three common checks and additional three zonal adapted checks in the respective zones during the 2019 rainy season. Recorded data on yield and quality traits were analyzed using genotype main effects and genotype × environment interaction biplot method. The genotype × environment (G × E) interaction was found to be highly significant for all the grain yield and agronomic traits and for both micronutrients (iron and zinc). However, genotypic effect (G) was four (productive tillers) to 49 (grain Fe content) times that of G × E interaction effect for various traits across zones that show the flexibility of OPVs. Ananthapuramu is the ideal test site for selecting pearl millet cultivars effectively for adaptation across India, while Ananthapuramu, Perumallapalle, and Gurugram can also be used as initial testing locations. OPVs MP 599 and MP 600 are identified as ideal genotypes, because they showed higher grain and fodder yields and stability compared with other cultivars. Iron and zinc concentration showed highly significant positive correlation (across environment = 0.83; p &lt; 0.01), indicating possibility of simultaneous effective selection for both traits. Three common checks were found to be significantly low yielders than the test entries or zonal checks in individual zones and across India, indicating the potential of genetic improvement through OPVs.

Evaluation of pearl millet [Pennisetum glaucum (L.) R. Br.] for grain iron and zinc content in different agro climatic zones of India

2017 ◽  
Vol 77 (1) ◽  
pp. 65 ◽  
Author(s):  
N. Anuradha ◽  
C. Tara Satyavathi ◽  
M. C. Meena ◽  
S. Mukesh Sankar ◽  
C. Bharadwaj ◽  
...  
Keyword(s):  
Pearl Millet ◽  
Pennisetum Glaucum ◽  
Zinc Content ◽  
Climatic Zones ◽  
Iron And Zinc

Genotype × environment interaction and genetic association of grain iron and zinc content with other agronomic traits in RIL population of pearl millet

2018 ◽  
Vol 69 (11) ◽  
pp. 1092
Author(s):  
Tripti Singhal ◽  
C. Tara Satyavathi ◽  
Aruna Kumar ◽  
S. Mukesh Sankar ◽  
S. P. Singh ◽  
...  
Keyword(s):  
Pearl Millet ◽  
Agronomic Traits ◽  
Pennisetum Glaucum ◽  
Recombinant Inbred Lines ◽  
Selection Index ◽  
Principal Component ◽  
Zinc Content ◽  
Environment Interaction ◽  
Genotype Environment Interaction ◽  
Zn Content

Biofortification of lines of pearl millet (Pennisetum glaucum (L.) R.Br.) with increased iron (Fe) and zinc (Zn) will have great impact because pearl millet is an indispensable component of food and nutritional security of inhabitants of arid and semi-arid regions. The aim of the present study was to assess the stability of Fe and Zn content in recombinant inbred lines (RILs) developed for grain Fe and Zn content, and to use these lines in developing micronutrient-rich pearl millet hybrids. A mapping population consisting of 210 RILs along, with parents and checks, was assessed in three consecutive years (2014–16) under rainfed conditions at the same experimental location in an alpha design with two repetitions. Significant differences were observed in genotype, environment and genotype × environment interaction mean squares for all variables, particularly grain micronutrients. The first two principal components of an interaction principal component analysis cumulatively explained 100% of the total variation; respective contributions of the first and second components were 64.0% and 36.0% for Fe, and 58.1% and 41.9% for Zn. A positive and moderately high correlation (0.696**) between Fe and Zn contents suggests good prospects of simultaneous improvement for both micronutrients. Among the 210 RILs, RIL 69, RIL 186, RIL 191, RIL 149 and RIL 45 were found to be more stable with higher mean micronutrient content, additive main effects and multiplicative interaction stability value (ASV) and genotype selection index (GSI) under rainfed condition. These RILs are promising and can be tested further for their combining ability for yield as well as grain micronutrient content for developing superior biofortified, heterotic pearl millet hybrids.

Potential of non-GMO biofortified pearl millet (Pennisetum glaucum) for increasing iron and zinc content and their estimated bioavailability during abrasive decortication

2012 ◽  
Vol 47 (8) ◽  
pp. 1660-1668 ◽  
Author(s):  
Fatoumata Hama ◽  
Christèle Icard-Vernière ◽  
Jean-Pierre Guyot ◽  
Isabelle Rochette ◽  
Bréhima Diawara ◽  
...  
Keyword(s):  
Pearl Millet ◽  
Pennisetum Glaucum ◽  
Zinc Content ◽  
Iron And Zinc

scholarly journals Analysis of Genotype by Environment Interaction of Improved Pearl Millet for Grain Yield and Rust Resistance

2017 ◽  
Vol 9 (2) ◽  
pp. 188
Author(s):  
G. Lubadde ◽  
P. Tongoona ◽  
J. Derera ◽  
J. Sibiya
Keyword(s):  
Grain Yield ◽  
Pearl Millet ◽  
Rust Resistance ◽  
Genotype By Environment Interaction ◽  
Climatic Conditions ◽  
Arid Zones ◽  
Environment Interaction ◽  
Genotype By Environment ◽  
Superior Genotypes ◽  
Main Effects

Pearl millet is grown by inhabitants of the semi-arid zones. Due to the unpredictable climatic conditions the genotype-by-environment interaction (GEI) makes it hard to select genotypes adapted to such conditions. The study objectives therefore were to analyse the patterns of GEI and to identify superior genotypes for grain yield and rust resistance. Seventy six genotypes were planted in four environments in 4×19 alpha design with two replications. The ANOVA results showed that main effects of environments were significant (p ≤ 0.05) for grain yield and highly significant (p ≤ 0.001) for rust resistance while the main effects of the genotypes and their interactions with environments were also important for grain yield and rust severity at 50% physiological maturity. The GGE biplot analysis revealed that environments associated with more rains received during vegetative phase performed better than those receiving more rains during post-anthesis phase. The winner in the best environment for grain yield was ICMV3771×SDMV96053 while Shibe×CIVT9206 and Shibe×GGB8735 were the best for rust resistance.

scholarly journals Stage Specific Comparative Transcriptomic Analysis To Reveal Gene Networks Regulating Iron And Zinc Content In Pearl Millet [Pennisetum glaucum (L.) R. Br.]

2021 ◽  
Author(s):  
C. Tara Satyavathi ◽  
Rukam S. Tomar ◽  
Supriya Ambawat ◽  
Jasminkumar Kheni ◽  
Shital M. Padhiyar ◽  
...  
Keyword(s):  
Pearl Millet ◽  
Gene Networks ◽  
Pennisetum Glaucum ◽  
Gene Annotation ◽  
Zinc Content ◽  
High Yield ◽  
Poor People ◽  
Zinc Metabolism ◽  
Iron And Zinc ◽  
Metabolic Activities

Abstract Pearl millet is an important staple food crop of poor people which is rich in micronutrients like iron and zinc and amenable for focused breeding for these micronutrients along with high yield. Transcriptome sequencing using ION S5 Next Generation Sequencer generated 43.5 million sequence reads resulting in 83,721 transcripts with N50 of 597 bp and 84.35% of transcripts matched with the pearl millet genome assembly. The genotypes having high Fe and Zn showed differential gene expression during different stages. Of which, 155 were up-regulated and 251were down-regulated while during flowering stage and milking stage 349 and 378 transcripts were differentially expressed, respectively. Gene annotation and GO term showed the presence of transcripts involved in metabolic activities associated with uptake and transport of iron and zinc. In the present study, the 83,721 transcripts were also examined for identification of SSRs. A total of 4,327 SSRs were identified with dominance of tri-nucleotide SSRs in comparison to di-nucleotide SSRs. These EST-SSRs can be used in molecular breeding, genetic diversity analysis and determination of heterozygosity of the allelic loci. Information generated will help in gaining insights into iron and zinc metabolism and develop genotypes with high yield, grain iron and zinc content.

scholarly journals Performance of dual-purpose pearl millet genotypes in West Africa: Importance of morphology and phenology

2020 ◽  
Vol 28 (4) ◽  
pp. 481-498
Author(s):  
D.D. Serba ◽  
O. Sy ◽  
M.D. Sanogo ◽  
A. Issaka ◽  
M. Ouedraogo ◽  
...  
Keyword(s):  
Pearl Millet ◽  
Pennisetum Glaucum ◽  
Central Africa ◽  
Genotype By Environment Interaction ◽  
West African ◽  
Environment Interaction ◽  
Germplasm Exchange ◽  
Dual Purpose ◽  
Breeding Programmes ◽  
Positive Correlations

Pearl millet (Pennisetum glaucum (L.) R. Br.) is a cereal crop vital for food security in West and Central Africa. Its byproducts also serve as fodder for livestock, especially during dry seasons. The objective of this study was to evaluate selected genotypes from West African pearl millet breeding programmes, for dual-purpose (grain and fodder) and elucidate prospects for future breeding. A total of 83 open-pollinated varieties (OPVs), five composites, six landraces, one synthetic and five hybrids were evaluated at 14 environments in Burkina Faso, Mali, Niger and Senegal during the rainy seasons of 2015 and 2016. Combined analysis of data revealed significant differences among genotypes and prevalence of high genotype-by-environment interaction effects. Two stability analyses models consistently indicated that genotypes 10 (SMILBF10), 14 (SMILBF14) and 39 (SMILML5) were widely adaptable across the region. Plant height, panicle length and panicle yield showed significant positive correlations with grain yield; while days to flowering was negatively correlated. Positive correlation between grain and fodder yields indicate possibility for simultaneous improvement involving the two important traits. This result suggests that germplasm exchange and regionally integrated breeding programmes are important for the identification of widely adapted dual-purpose varieties of pearl millet, particularly in West African drylands.

scholarly journals Genetic variability, genotype × environment interaction and correlation analysis for grain iron and zinc contents in recombinant inbred line population of pearl millet [Pennisetum glaucum (L). R.

2019 ◽  
Vol 79 (3) ◽  
Author(s):  
M. D. Mahendrakar ◽  
Sushil . Kumar ◽  
Ram Baran Singh ◽  
Abhishek . Rathore ◽  
Gopi . Potupureddi ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Correlation Coefficient ◽  
Pearl Millet ◽  
Recombinant Inbred ◽  
Phenotypic Variance ◽  
Environment Interaction ◽  
Large Variability ◽  
Major Health Problem ◽  
Zn Content ◽  
Iron And Zinc

Micronutrient malnutrition is one of the major health problem, especially iron (Fe) and zinc (Zn) deficiencies that are widespread coupled with inadequate food supply in the developing world. Pearl millet grains are a good source of Fe and Zn elements making it a potential staple crop for overcoming hidden-hunger and micronutrient deficiencies. Breeding pearl millet with high levels of grain Zn and Fe contents represents a major opportunity to enhance the intake of these minerals for poor and malnourished people. A precise understanding of the genetic variability, correlation of mineral nutrients, genotype × environment (G × E) interaction is important for developing improved lines with high Fe and Zn content. To get fair estimates, we used a bi-parental recombinant inbred lines (RIL) mapping population representing F2 phenotypic variance. A total of 317 RILs were evaluated for grain iron and zinc content in two seasons, Summer 2016 (E1) and Summer 2017 (E2). The result from the analysis of variance exhibited a large variability for grain Fe and Zn content across the two environments. The G × E for high grain Fe were significant at P 0.01. The mean performance across the two environments data for grain Fe ranged from 22.9 to 154.5 mg kg-1 (ppm) and Zn content ranged from 19.3 to 121 mg kg-1. The correlation coefficient for grain Fe and Zn was 0.9, and 0.8 and across the two (E1 and E2) environments. The value of correlation coefficient (0.9) was found to be highly significant at P 0.01 level, that indicated good opportunities for simultaneous genetic improvement of both iron and zinc contents in pearl millet.

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