Indian Journal of Plant Genetic Resources

  • Year: 2000
  • Volume: 13
  • Issue: 3

Genetic analysis for yield and its component in Himalayan chenopod

  • Author:
  • B. D. Joshi, J. C. Rana
  • Total Page Count: 4
  • DOI:
  • Page Number: 269 to 272

National Bureau of Plant Genetic Resources, Regional Station, Phagli, Shimla 171 004 (Himachal Pradesh).

Abstract

A set of 53 genetically diverse genotypes of Chenopodium album L. ongmating from different agro-ecological areas of Himalayas and 3 exotic introductions of C. quinoa from South America was tested and analysed for genetic variability, correlation and path coefficient analysis. A wide range of variation was observed for all the traits. Phenotypic coefficient of variation and genotypic coefficient of variations were highest for inforescence length, number of leaves on main shoot, number of branches/plant and plant height. Heritability and genetic advance (in broad sense) were high for plant height, number of leaves on main shoot and days to mature. Grain yield showed positive association with inflorescence length, days to flower, number of branches per plant and leaf length. Inflorescence length had highest and positive direct effect on grain yield followed by days to flower and number of branches per plant. On the basis all the variability and productivity parameters studied, inflorescence length, days to flower and number of branches/plant were observed to be the most potential traits for genetic improvement of Himalayan chenopod. Since late flowering and maturity beyond certain limit are not desirable, greater emphasis is given to inflorescence length and number of branches/plant while making selection or formulating component breeding programme for the genetic improvement of chenopod.

Keywords

Chenopodium, quinoa, phenotypic/genotypic coefficient of variation, heritability, genetic advance, correlation