GENETIC VARIABILITY AND CHARACTER ASSOCIATION STUDIES IN MAIZE

Article Id: ARCC954 | Page : 173 - 177
Citation :- GENETIC VARIABILITY AND CHARACTER ASSOCIATION STUDIES IN MAIZE.Agricultural Science Digest.2011.(31):173 - 177
J. Jawaharlal, G. Lakshmikantha Reddy and R. Sai Kumar
Address : College of Agriculture, ANGRAU, Rajendranagar, Hyderabad - 500 030, India

Abstract

Genetic variability and correlations were studied in 40 inbred lines of maize. The data were recorded on seed yield and it’s related traits. Grain yield was found to be significantly and positively correlated with plant height, ear height, ear girth, number of seed rows per ear, number of seeds per row, number of seeds per ear and 100-seed weight.  Number of seeds per ear exhibited highest positive correlation with grain yield followed by plant height, number of seeds per row, ear height, 100 seed weight, ear girth, and number of seed rows per ear. The character days to 50% tasselling and days to 50% silking exhibited significant negative genotypic correlation with grain yield. Number of seeds per cob and grain yield estimates combined with high genotypic coefficient of variation with high heritability  indicating additive gene action controlling these traits.

Keywords

Correlation Variability Maize Yield.

References

  1. Allard, R.W. (1960). Principles of Plant Breeding. John Wiley and Sons, Inc., New York.
  2. Bao Heping, et al.,(2004). Journal of Jilin Agricultural University 26 (1) : 16-18.
  3. Debnath , S.C. and Sarkar,KR (1987). Thai. J.Agri.Sci. 20 : 263-276.
  4. Gautam, et al.,. (1999). Annals of Agricultural Bio Research 4 : 169-171.
  5. Jayakumar, et al., (2007). International Journal of Agricultural Sciences 3 : 57-60.
  6. Kumar, P.P. and Satyanarayana, E. (2001). Journal of Research ANGRAU 29 : 71-75.
  7. Mohan, et al., (2002). National Journal of Plant Improvement 4 : 75-76.
  8. Panes, V.G. (1957). Indian journal of genetics and plant breeding 17 :318-328.
  9. Prakash, M.S. (1996). M.Sc. (Ag.) Thesis ,ANGRAU, Hyderabad.
  10. Sadek et al., (2006). Journal of Applied Sciences Research 2 (3) : 159-167.
  11. Searle ,S.R. (1961). Biometrics 17 : 474-480
  12. Sharma, R.K. and Kumar, S. (1987). Crop Improvement 14 : 201-204.
  13. Singh, N.P. et al., (1995).. Annals of agricultural research 16 : 164-167.
  14. Targ Hua, et al., (2004).. Acta Agronomica-Sinica 30 (9) : 922-926.
  15. Umakanth, A.V. and Sunil, N. (2000). Bioved 11 : 43-45.

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