International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 4
First page : (1525) Last page : (1530)
Article doi: http://dx.doi.org/10.18782/2320-7051.5479
Studies on Genetic Pameters for Yield and Yield Contributing Characters in Popcorn Genotypes (Zea mays var. Everta)
M. Sridhar1*, K. Murali Krishna1, Razia Sultana2 and M.H.V. Bhave3
1Department of Genetics and Plant Breeding, 2Department of Seed Science and Technology,
3Department of Statistics & Mathematics, College of Agriculture., PJTS Agricultural University,
Rajendranagar - 500 030 (Telangana)
*Corresponding Author E-mail: sriagrico73@gmail.com
Received: 22.07.2017 | Revised: 5.08.2017 | Accepted: 8.08.2017
ABSTRACT
The present investigation was carried out to assess the variability, heritability and genetic advance in thirty genotypes for eleven yield and its contributing traits. Analysis of variance revealed that the mean sum of squares due to genotypes showed significant differences for all the 12 characters studied. Variability studies indicated that the estimates of phenotypic coefficient of variation were slightly higher than genotypic coefficient of variation for all the traits, indicating less influence of environment. Among all the characters under study, grain yield per plant exhibited highest PCV (25.78) and GCV (24.51), whereas lowest PCV (2.30) and GCV (1.18) were recorded for days to maturity. Ear height, no. of kernel rows ear-1, no. of kernels row-1, 100-kernel weight, grain yield plant-1 and popping expansion ratio exhibited high heritability coupled with high genetic advance as a per cent of mean, which indicated the preponderance of additive gene action in controlling these traits. Hence direct selection of these characters would be effective in improving the seed yield. Emphasis should be given on these characters, while selection is made to improve yield potential and popping quality in popcorn breeding.
Key words: Genetic advance, Genotypic coefficient of variation, Heritability, Phenotypic coefficient of variation, Popcorn.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Sridhar, M., Krishna, K.M., Sultana, R. and Bhave, M.H.V., Studies on Genetic Pameters for Yield and Yield Contributing Characters in Popcorn Genotypes (Zea mays var. Everta), Int. J. Pure App. Biosci.5(4): 1525-1530 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5479
