Characterization of Little Millet (Panicum sumatrense) Genetic Diversity in Yelagiri Hills of Tamil Nadu

Gopikrishnan, A; Pandiyan, M.; Thilagam, P.; Veeramani, P.; Nanthakumar, S.

doi:10.5958/0976-1926.2021.00008.5

Cited by 4 publications

(5 citation statements)

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“…Significant positive correlation was also observed between flag leaf length and flag leaf width indicating that selection of these inter correlated traits would also have positive influence in the grain yield per plant. Similar results for these observations were also reported by Gopikrishnan et al (2021).…”

Section: Resultssupporting

confidence: 93%

Characterization of little millet (Panicum sumatrense Roth. ex. Roem. and Schultz) landraces and varieties for genetic diversity and association of traits

2023

EJPB

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Little millet is one of the least explored small millets and has several nutritional benefits with features of climate resilience. In this study, seventeen little millet landraces and varieties were characterized for eleven quantitative and six qualitative traits. The diversity of the accessions for quantitative traits with major contributors as 1000 seed weight and plant height grouped the genotypes into five clusters. Five genotypes each were grouped under cluster III and cluster V. The maximum inter cluster distance was found between cluster I and cluster II. Subsequently, cluster I had higher desirable mean for plant height, number of basal tillers, panicle length, number of branches per panicle and grain yield per plant while cluster III had early flowering. The qualitative traits viz., grain colour, panicle compactness and pigmentation of leaf sheath were also highly variable in the present material and were grouped into six clusters based on these traits. Hence, these highly variable qualitative traits could be employed as major indicators in the identification of these landraces. In addition, out of the fourteen traits, five traits viz., number of branches per panicle, panicle length, flag leaf length, flag leaf width and number of basal tillers, exhibited significant influence on yield through direct and indirect effects. Thus, these traits could be used as effective selection indicators for improving the yield parameters in little millet.

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Section: Resultssupporting

confidence: 93%

Characterization of little millet (Panicum sumatrense Roth. ex. Roem. and Schultz) landraces and varieties for genetic diversity and association of traits

2023

EJPB

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“…For the vector Z1 to Z7 similar findings were reported by Prabu et al [10], Metha et al [13] in barnyard millet and Gopikrishana et al [14] in little millet [15,16].…”

Section: Resultssupporting

confidence: 82%

Study of Genetic Diversity in Indian Barnyard Millet Genetic Resources [Echinochloa frumentacea (L.)]

Nehru,

Reddy,

Reddy

et al. 2023

IJECC

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Sixtyfour Indian barnyard millet genetic resources were studied to assess the extent of genetic divergence for 18 quantitative traits using Mahalanobis D2 Statistic. Sixtyfour genetic resources of Indian barnyard millet were evaluated during kharif, 2020 in a lattice square design, replicated twice at Regional Agricultural Research. Based on Tocher’s method, the entire genetic materials were separated into eight distinct and non-overlapping clusters suggesting availability of genetic diversity. Cluster I has highest number of accessions (57) and the remaining were mono genotypic clusters II, III, IV, V, VI, VII and VIII containing only one accession each indicating high degree of heterogeneity among the genotypes. The widest inter-cluster distance was recorded between clusters IV and VII. Therefore, it is concluded that the genotypes to these clusters has to be intercrossed in order to create more diversity and improving grain yield in barnyard millet. The traits, grain yield per plant and panicle weight contributed maximum towards total divergence has scope of crop improvement through those traits. Diversity of parent paly main role for the successful of any breeding programme. So the crosses can be made among the parents having widest divergence would more likely to yield desirable recombination in segregating generations.

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“…The genotypic and phenotypic correlation coefficients for grain yield and its components as well as biochemical A significant positive association of iron content was observed with zinc content (rp = 0.733**, rg = 0.761**) whereas a significant negative association was noticed with calcium content (rp = -0.567**, rg = -0.618**), both at phenotypic and genotypic levels. Similar results for phenotypic and genotypic correlations with grain yield were reported by Ashok et al [34] for days to 50% flowering and days to maturity and Gopikrishnan et al [33] for days to 50% flowering, plant height, number of productive tillers and panicle length in little millet.…”

Section: Character Associationsupporting

confidence: 88%

“…In a similar study in little millet involving grain yield and nutritional traits, Patel et al [32] reported that the first two principal components accounted for 92.14% of the total variation. However, in another study involving grain yield and its component traits, Gopikrishnan et al [33] reported that the first three principal components contributed about 69.10% of cumulative variance.…”

Section: Principal Componentsmentioning

confidence: 98%

Insights into Genetic Variability Parameters and Character Association among Agro-morphological and Biochemical Traits in Little Millet (Panicum sumatrense Roth. Ex. Roem and Schultz)

Tejashwini,

Radhika,

Ganapathy

et al. 2024

JEAI

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A set of 64 little millet genotypes was evaluated for their genetic variability parameters, principal components, and their contribution to total variance using seven agro-morphological and four biochemical traits in alpha lattice design with two replications. The mean performance revealed the presence of substantial variability for the characters studied. The phenotypic coefficient of variation (PCV) and genotypic coefficient of variation (GCV) estimated ranged from 18.28% to 43.75% and 10.06% to 42.75%, respectively. Even though PCV was found to be significantly greater than GCV for the number of tillers, a slightly higher PCV over GCV was observed for all the other traits, suggesting a limited environmental influence for the majority of the traits. High heritability was observed for all agro-morphological and biochemical traits (84.00-94.00%), except for the number of tillers (42.00%), which exhibited moderate heritability. Genetic advance as a percentage of mean (GAM) was high for most of the traits, viz., days to 50% flowering, plant height, panicle length, single plant yield, test weight, grain protein, iron, zinc, and calcium contents. suggesting the predominance of additive gene action and the greater possibility of genetic improvement through simple phenotypic selection. Majority of the contribution towards the total divergence by days to 50% flowering, days to maturity, plant height, number of tillers, panicle length, single plant yield, and grain calcium content coupled with significant and positive correlations of majority of grain yield components with grain yield suggested that these traits are the key drivers of variability that could be exploited through a little millet improvement program.

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Characterization of Little Millet (Panicum sumatrense) Genetic Diversity in Yelagiri Hills of Tamil Nadu

Cited by 4 publications

References 0 publications

Characterization of little millet (Panicum sumatrense Roth. ex. Roem. and Schultz) landraces and varieties for genetic diversity and association of traits

Characterization of little millet (Panicum sumatrense Roth. ex. Roem. and Schultz) landraces and varieties for genetic diversity and association of traits

Study of Genetic Diversity in Indian Barnyard Millet Genetic Resources [Echinochloa frumentacea (L.)]

Insights into Genetic Variability Parameters and Character Association among Agro-morphological and Biochemical Traits in Little Millet (Panicum sumatrense Roth. Ex. Roem and Schultz)

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