Genetic variability studies in amaranthus (Amaranthus spp.)


  • Annapoorna Agadi University of Agricultural and Horticultural Sciences, Shivamogga Author
  • S Kolakar University of Agricultural and Horticultural Sciences, Shivamogga Author
  • D Lakshmana University of Agricultural and Horticultural Sciences, Shivamogga Author
  • S Nadukeri University of Agricultural and Horticultural Sciences, Shivamogga Author
  • M Hanumanthappa University of Agricultural and Horticultural Sciences, Shivamogga Author



Genotypic coefficient of variation, Genetic advance as percent mean, Heritability, Phenotypic coefficient variation


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.


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Original Research Papers

How to Cite

Agadi, A., Kolakar, S., Lakshmana, D., Nadukeri, S., & Hanumanthappa, M. (2021). Genetic variability studies in amaranthus (Amaranthus spp.). Journal of Horticultural Sciences, 16(1), 36-44.

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