Genetic variability studies in amaranthus (Amaranthus spp.)
An investigation was carried out to estimate the nature and extent of genetic variability among twenty Amaranthus genotypes (Amaranthus spp.) under a randomized block design during the year 2019-20. The phenotypic coefficient of variation was higher than the genotypic coefficient of variation fo...
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Society for Promotion of Horticulture - Indian Institute of Horticultural Research
2021
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oai:doaj.org-article:0f388506bf6c4946b5ba0eee2f6b838c2021-12-02T19:45:41ZGenetic variability studies in amaranthus (Amaranthus spp.)0973-354X2582-489910.24154/JHS.2021.v16i01.004https://doaj.org/article/0f388506bf6c4946b5ba0eee2f6b838c2021-06-01T00:00:00Zhttps://jhs.iihr.res.in/index.php/jhs/article/view/1077https://doaj.org/toc/0973-354Xhttps://doaj.org/toc/2582-4899An investigation was carried out to estimate the nature and extent of genetic variability among twenty Amaranthus genotypes (Amaranthus spp.) under a randomized block design during the year 2019-20. The phenotypic coefficient of variation was higher than the genotypic coefficient of variation for all the traits. High genotypic coefficient of variation (GCV) and phenotypic coefficient variation (PCV) was observed for leaf area, leaf area index, leaf area duration, AGR, dry weight of leaf per plant, specific leaf weight, speed of germination, chlorophyll content and ascorbic acid (vitamin C). Moderate GCV and PCV were observed for leaf length, leaf width, petiole length, dry weight of stem per plant, leaf: stem ratio and foliage yield per plant. The high estimates of heritability coupled with higher values of genetic advance as per cent mean (GAM) were observed for the parameters like test weight, speed of germination, germination percentage, seedling dry matter, seedling vigour index-1, seedling vigour index-2, plant height, leaf length, leaf width, leaf area, leaf area index, leaf area duration, AGR, specific leaf weight, stem weight per plot, dry weight of leaf, dry weight of stem, leaf: stem ratio, foliage yield per plant, chlorophyll, ascorbic acid and beta- carotene content which indicates the predominance of additive gene action. Arka Arunima, Chikmagalur local, IC-551486, IC-551494 and IC-551466 recorded high foliage yield per plot and these can be utilized in further breeding programmes.Annapoorna AgadiS KolakarD LakshmanaS NadukeriM HanumanthappaSociety for Promotion of Horticulture - Indian Institute of Horticultural Researcharticlegenotypic coefficient of variationgenetic advance as percent meanheritabilityphenotypic coefficient variationPlant cultureSB1-1110ENJournal of Horticultural Sciences, Vol 16, Iss 1, Pp 36-44 (2021) |
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DOAJ |
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EN |
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genotypic coefficient of variation genetic advance as percent mean heritability phenotypic coefficient variation Plant culture SB1-1110 |
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genotypic coefficient of variation genetic advance as percent mean heritability phenotypic coefficient variation Plant culture SB1-1110 Annapoorna Agadi S Kolakar D Lakshmana S Nadukeri M Hanumanthappa Genetic variability studies in amaranthus (Amaranthus spp.) |
| description |
An investigation was carried out to estimate the nature and extent of genetic variability among twenty Amaranthus genotypes (Amaranthus spp.) under a randomized block design
during the year 2019-20. The phenotypic coefficient of variation was higher than the genotypic coefficient of variation for all the traits. High genotypic coefficient of variation (GCV) and phenotypic coefficient variation (PCV) was observed for leaf area, leaf area index, leaf area duration, AGR, dry weight of leaf per plant, specific leaf weight, speed of germination, chlorophyll content and ascorbic acid (vitamin C). Moderate GCV and PCV were observed for leaf length, leaf width, petiole length, dry weight of stem per plant, leaf: stem ratio and foliage yield per plant. The high estimates of heritability coupled with higher values of genetic advance as per cent mean (GAM) were observed for the parameters like test weight, speed of germination, germination percentage, seedling dry matter, seedling vigour index-1, seedling vigour index-2, plant height, leaf length, leaf width, leaf area, leaf area index, leaf area duration, AGR, specific leaf weight, stem weight per plot, dry weight of leaf, dry weight of stem, leaf: stem ratio, foliage yield per plant, chlorophyll, ascorbic acid and beta- carotene content which indicates the predominance of additive gene action. Arka Arunima, Chikmagalur local, IC-551486, IC-551494 and IC-551466 recorded high foliage yield per plot and these can be utilized in further breeding programmes. |
| format |
article |
| author |
Annapoorna Agadi S Kolakar D Lakshmana S Nadukeri M Hanumanthappa |
| author_facet |
Annapoorna Agadi S Kolakar D Lakshmana S Nadukeri M Hanumanthappa |
| author_sort |
Annapoorna Agadi |
| title |
Genetic variability studies in amaranthus (Amaranthus spp.) |
| title_short |
Genetic variability studies in amaranthus (Amaranthus spp.) |
| title_full |
Genetic variability studies in amaranthus (Amaranthus spp.) |
| title_fullStr |
Genetic variability studies in amaranthus (Amaranthus spp.) |
| title_full_unstemmed |
Genetic variability studies in amaranthus (Amaranthus spp.) |
| title_sort |
genetic variability studies in amaranthus (amaranthus spp.) |
| publisher |
Society for Promotion of Horticulture - Indian Institute of Horticultural Research |
| publishDate |
2021 |
| url |
https://doaj.org/article/0f388506bf6c4946b5ba0eee2f6b838c |
| work_keys_str_mv |
AT annapoornaagadi geneticvariabilitystudiesinamaranthusamaranthusspp AT skolakar geneticvariabilitystudiesinamaranthusamaranthusspp AT dlakshmana geneticvariabilitystudiesinamaranthusamaranthusspp AT snadukeri geneticvariabilitystudiesinamaranthusamaranthusspp AT mhanumanthappa geneticvariabilitystudiesinamaranthusamaranthusspp |
| _version_ |
1718376005992710144 |