Variability, heritability and genetic association in vegetable amaranth (Amaranthus tricolor L.)

  • Umakanta Sarker Bangabandhu Sheikh Mujibur Rahman Agricultural University, Faculty of Agriculture, Department of Genetics and Plant Breeding. Gazipur-1706
  • Md Tofazzal Islam Bangabandhu Sheikh Mujibur Rahman Agricultural University, Faculty of Agriculture, Department of Biotechnology. Gazipur-1706
  • Md Golam Rabbani Bangladesh Agricultural University, Faculty of Agriculture, Department of Horticulture. Mymensingh-2202
  • Shinya Oba Gifu University, Faculty of Applied Biological Science, Laboratory of Field Sciences. Gifu
DOI: https://doi.org/10.5424/sjar/2015132-6843
Keywords: mean performance, genetic parameter, correlation, mineral, protein, dietary fibre, agronomic traits

Abstract

Forty three vegetable amaranth (Amaranthus tricolor L.) genotypes selected from different eco-geographic regions of Bangladesh were evaluated during 3 years (2012-2014) for genetic variability, heritability and genetic association among mineral elements and quality and agronomic traits in randomized complete block design (RCBD) with five replications. The analysis showed that vegetable amaranth is a rich source of K, Ca, Mg, proteins and dietary fibre with average values among the 43 genotypes (1.014%, 2.476%, 2.984, 1.258% and 7.81%, respectively). Six genotypes (VA13, VA14, VA16, VA18, VA26, VA27) showed a biological yield >2000 g/m2 and high mineral, protein and dietary fibre contents; eleven genotypes had high amount of minerals, protein and dietary fibre with above average biological yield; nine genotypes had below average biological yield but were rich in minerals, protein and dietary fibre. Biological yield exhibited a strong positive correlation with leaf area, shoot weight, shoot/root weight and stem base diameter. Insignificant genotypic correlation was observed among mineral, quality and agronomic traits, except K vs. Mg, protein vs. dietary fibre and stem base diameter vs. Ca. Some of these genotypes can be used for improvement of vegetable amaranth regarding mineral, protein and dietary fibre content without compromising yield loss.

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Published
2015-05-29
How to Cite
Sarker, U., Islam, M. T., Rabbani, M. G., & Oba, S. (2015). Variability, heritability and genetic association in vegetable amaranth (Amaranthus tricolor L.). Spanish Journal of Agricultural Research, 13(2), e0702. https://doi.org/10.5424/sjar/2015132-6843
Issue
Vol. 13 No. 2 (2015)
Section
Plant breeding, genetics and genetic resources

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