Genetic diversity and character association in different seedling pecan (Carya illinoensis) genotypes

DINESH SINGH; RAJESH KUMAR KALER; K KUMAR; NIRMAL SHARMA

doi:10.56093/ijas.v82i11.24959

Authors

DINESH SINGH Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh 173 230
RAJESH KUMAR KALER Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh 173 230
K KUMAR Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh 173 230
NIRMAL SHARMA Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh 173 230

https://doi.org/10.56093/ijas.v82i11.24959

Keywords:

Correlations, Genetic divergence, Heritability, Path analysis, Pecan

Abstract

The extent of variability, heritability, character association, path analysis and genetic divergence with respect to nut and kernel characters in thirty six seedling pecan genotypes were studied. The analysis of variance showed substantial amount of variability for majority of traits. The estimates of PCV were higher for all the traits investigated. High heritability estimation coupled with high genetic advance was observed for nut length and kernel oil (%) but, higher genetic gain coupled with moderate to high heritability was recorded for kernel protein and shell thickness. Further nut weight had positive and significant association with nut width, shell thickness, kernel weight, kernel width and kernel length. Based on path coefficient analysis, nut length, kernel weight, kernel percentage, kernel width, kernel length and kernel protein showed positive effects towards nut weight and kernel percentage.

Downloads

Download data is not yet available.

Author Biographies

DINESH SINGH, Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh 173 230
RAJESH KUMAR KALER, Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh 173 230
K KUMAR, Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh 173 230
NIRMAL SHARMA, Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh 173 230

References

Dashora A and Sastry E D V. 2011.Variability, character association and path coefficient analysis in fennel. Indian Journal of Horticulture 68 (3): 551–6.

Khanizadeh S, Buszard D and Zarkadas C G. 1995. Misuse of the Kjeldahl method for estimating protein content in plant tissue. Hort. Science 30: 1341–2.

Kumar A, Pal A K and Kumar S. 2011. Genetic variability, Correlation and path analysis in Asiatic carrot. Indian Journal of Horticulture (3): 433–7.

Kumar R, Kumar S and Singh A K. 2012. Genetic variability and diversity studies in snapdragon (Antirrhinum majus) under tarai conditions of Uttarakhand. Indian Journal of Agricultural Sciences 82 (6): 535–7.

Singh D, Kumar K, Sharma V K and Singh M. 2009 a. Expression of genetic variability and character association in raspberry (Rubus ellipticus Smith.) growing wild in North-western Himalayas. Journal of Horticulture Science 4(1): 28–31.

Singh D, Gupta R K, Singh M and Sharma V K. 2009 b. Characterization of pecan (Carya illinoensis) germplasm of seedling origin through regression and principal component analysis. Indian Journal of Agricultural Sciences 79 (4): 324–6.

Singh D, Sharma N and Kumar K. 2010 a. Assessment of phenotypic variability, its heritability components and character association in pomergranate (Punica granatum) genotypes. Indian Journal of Agricultural Sciences 80 (8): 667–72.

Singh D, Kumar K and Singh M. 2010 b. Agronomic performance and character association studies in seedling trees of pecan nut (Carya illinoensis (Wang) K. Koch.). Advances in Horticultural Science Italy 24 (2): 133–6.

Singh D, Kumar K, Sharma S D and Sharma V K. 2011a. Selection of indigenous pecan [Carya illinoensis (Wang) K. Koch.] trees for better nut and kernel quality characters. Journal of Hill Agriculture 2 (1): 85–9.

Singh D, Kumar K and Sharma V K. 2011 b. Assessment of genetic diversity in wild raspberry (Rubus ellipticus Smith.) native to North-western Himalayas. Journal of Horticulture Science 6 (2): 148–55.