Genetic Variation in Different Cultivars of Greater Yam (Dioscorea alata)
Keywords:
Greater yam, genotypic coefficient of variation (GCV), phenotypic coefficient of variation (PCV), environmental coefficient of variation (ECV), heritability in broad sense (h2 bs) expected genetic advance (GA)Abstract
Assessment of 27 accessions of greater yam (Dioscorea alata L.), collected throughout north east India, was carried out during 2009-2010 at the Experimental Farm, Department of Horticulture, Assam Agricultural University. Observations were recorded for different morphological characters followingInternational Plant Genetic Resources Institute’s (IPGRI) descriptors for yam. Phenotypic coefficient of variation (PCV) was higher than genotypic coefficient of variation (GCV) for all the characters indicating the influence of environment. High heritability (>90%) coupled with high genetic advance (>50%) was exhibited by total phenol, internode length, petiole length and days to emergence.References
Akoroda, M.O.1984. Variability, repeatability, character correlation
and path analysis in yellow yam. Theor. Appl. Genet. ,
(2): 227-232.
Ariyo, O.J. 1987. Multivariate analysis and choice of parents for
hybridization in Okra (Abelmoschus esculentus (L)) Moench.
Theor. Appl. Genet., 74: 361-363.
Burton, G.W. 1952. Quantitative inheritance in grasses. Proceedings
th Grassid Congress, 1: 277-281.
Burton, G.W. and Devane, D. 1953. Estimating heritability in tall
fescues (Festuca arundinacea) from replicated clonal material.
Agron. J., 45: 478-485.
Hanson, G.H., Robinson, H.F. and Comstock, R.E. 1956.
Biometrical studies of yield in segregating populations of Korean
Lespedeza. Agron. J., 48: 268-272.
Jain, A.K., Tiwari, A.S., Kushwah, V.S. and Hirve, C.D. 1988.
Genetics of quantitative traits in Indian mustard. Indian J.
Genet., 48: 117-119.
Johnson, H., Robinson, H.F. and Comstock, R.E. 1955. Estimate
of genetic and environmental variability in soybean. Agron. J.,
: 314-318.
Kamalam, P., Biradar, R.S., Hrishi, N. and Rajendran, P.G. 1977.
Path co-efficient and correlation studies in sweet potato. J. Root
Crops, 3(1): 5-11.
Lakshmi, K.R. and Amma, E.C.S. 1980. Studies on variability and
correlation in Asian greater yam Dioscorea alata (L.). J. Root
Crops, 6(1 & 2): 29-32.
Lin, P.S. 1983. Analysis of correlation between the main characters
of spring sweet potato cultivars. Guangdong. Agric. Sci.,
: 21-23.
Nwankwo, I. I. M. and Bassey, E. E. 2013. A study of variability and
heritability for yield and yield related traits in guinea white yam(Dioscorea rotundata Poir.) genotypes in Umudike, Southeastern
Nigeria. Wudpecker J. Agric. Res., 2(4): 122 . 127.
Rai, M., Dhender, D.G. and Varma, S.P. 1986.Variability studies of
cassava varieties on growth and yield under Tripura conditions.
J. Root Crops, 12(1): 25-28.
Rishi, A.K., Bhan, M.K. and Dhar, P.I. 1984. Genetic variability and
component analysis for tuber yield of Dioscorea deltoidea.
Herba Hungarita, 23(1): 43-51.
Saladaga, F.A. and Hernandez, T.P. 1981. Genetic study including
heritability and correlation of several characters in Ipomoea
batatas. Hort. Sci., 16 (3): 287.
Downloads
Published
How to Cite
Issue
Section
License
Dear Author(s)
We need your written permission before we can publish your accepted article in the Journal of Root Crops. Please read this form carefully, complete it and palace your signature below. A scanned copy of this form may be mailed to us within two days of receipt of this letter. Our email ID is: isrc_ctcri@yahoo.com or editor_jrc@yahoo.com or sreekumarctcri@gmail.com
Details:
In consideration of the publication in the Journal of Root Crops of our contribution entitled
(Name of the paper): .................................................................................................................
.................................................................................................................................................... by us (all Authors’ names) ..........................................................................................................
....................................................................................................................................................
A. To be filled in if copyright belongs to you
I/we hereby assign to Indian Society for Root Crops, Thiruvananthapuram, India, the full copyright in all forms and media in the said contribution, including open/ restricted access to online version. They own the rights to freely grant or distribute the paper to any third party or public
Please tick this box if you are the sole author of the paper
Please tick this box if you are authorised to execute this copyright transfer on behalf of all the authors of the above article
Name (block letters): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .......
Institution/Company:..................................................................................................................
....................................................................................................................................................
Signature:.....................................................................; Date: ....................................................
B. To be filled in if copyright does not belong to you
1. Name and address of copyright holder:................................................................................
........................................................................................................................................................................................................................................................................................................
2. The copyright holder hereby grants Indian Society for Root Crops, Thiruvananthapuram, India the full copyright in all forms and media in the said contribution, including open/ restricted access to online version. They own the rights to freely grant or distribute the paper to any third party or public.
(Signature of copyright holder or authorised agent)
