INTERNATIONAL JOURNAL OF PURE & APPLIED BIOSCIENCE
ISSN : 2320-7051
International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 4
First page : (241) Last page : (245)
Article doi: : http://dx.doi.org/10.18782/2320-6460
Studies on Genetic Variability, Association of Characters and Path Analysis in Maize (Zea mays L.) inbreds
Lad D. B.*, U. M. Borle and N. U. Dhumal
Zonal Agricultural Research Station, Ganeshkhind, Pune-411067, Maharashtra, India
*Corresponding Author E-mail: email@example.com
Received: 5.05.2018 | Revised: 13.06.2018 | Accepted: 21.06.2018
In the present investigation analysis of variance revealed highly significant differences among the genotypes for all the twelve characters studied, indicated the wide range of genetic variability in the existing material. The phenotypic correlation coefficients were numerically higher than genotypic correlation coefficients . The characters viz; Plant height, ear head height, ear length, number of grains per cob, 100- grain weight, number of cobs per plant, days to 50 per cent tasselling and silking showed significant positive correlation with seed yield per plant. In the association among component characters, days to 50 per cent tasseling significantly and positively correlated with days to 50 per cent silking, plant height, days to 50 per cent maturity, ear head height, shelling percentage and seed yield per plant, whereas protein content was negatively correlated. Days to 50 per cent maturity was positively correlated with ear head height, ear length and shelling percentage. Path analysis revealed that number of grains per cob, 100- grain weight, days to 50 per cent maturity, number of cobs per plant and plant height recorded the maximum and positive direct effects on seed yield per plant and their association with seed yield per plant was also positive and highly significant except days to 50 per cent maturity.
Key words: Correlation, Path Analysis, Variability, Maize.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Lad, D.B., Borle, U.M. and Dhumal, N.U., Studies on Genetic Variability, Association of Characters and Path Analysis in Maize (Zea mays L.) inbreds, Int. J. Pure App. Biosci.6(4): 241-245 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6460