Agricultural Science Digest

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Agricultural Science Digest, volume 31 issue 1 (march 2011) : 54 - 57

COMBINING ABILITY STUDIES IN TOP CROSS DERIVATIVES OF MAIZE (ZEA MAYS L.)

J.M. Shete, D.B.Patel, M.P. Patel, R.A. Gami, C.G. Patel
1Directorate Research and Dean P.G. Studies Office S.D. Agriculture University, Sardarkrushinagar - 385 506, India.

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Cite article:- Shete J.M., D.B.Patel, Patel M.P., Gami R.A., Patel C.G. (2024). COMBINING ABILITY STUDIES IN TOP CROSS DERIVATIVES OF MAIZE (ZEA MAYS L.). Agricultural Science Digest. 31(1): 54 - 57. doi: .

ABSTRACT

In a study on combining ability in maize involving 21 inbred and 1 variety and 21 F1’s derived through inbred variety through inbred x variety cross, the preponderance of additive gene action was observed for all the traits under study. Among the inbred lines,   CML-269, CML-251, CML-292 and GWL-7 appeared to be good general combiners for grain yield, in addition to grain yield the inbred  CML-269 was found to be  general combiner for protein content, shelling percentage and number of grain rows per ear, and  CML-251 appeared to be good combiner for days to 50 % tasselling, days to 50 % silking, days to 75 % maturity ear girth, 100- kernel weight, number of grain per row, and number of ear per plant. Thus, these two inbred may serve as potential parent for improving yield and yield attributes in future breeding programme.

REFERENCES

  1. Gautam, A. S. (2003). Combining ability studies for grain yield and other agronomic characters in inbred lines of maize (Zea mays L.). Crop Res., 26 (3): 482-485.
  2. Griffing, B. (1956). Concept of general and specific combining ability in relation to diallel crossing systems. Aust. J. Biol. Sci., 9: 463-493.
  3. Mahto, R. N. and Ganguli, D. K. (2003). Combining ability analysis in inter varietal crosses of maize. Madras Agric. J., 90 (1-3): 29-33.
  4. Satyanarayana, E., Sai Kumar, R. and Rao, G. K. (1990). Genetics of yield and its components in maize (Zea mays L.). Madras Agric. J., 77 (9-12): 489-492.
  5. Subramanian, A. and Subbaraman, N. (2006). Combining ability analysis of yield and its contributing traits in maize. Indian J. Agric. Res., 40 (2): 131-134.
  6. Tiwari, P.N.; Gambhir, P.N. and Rajan, T.S. (1974). Rapid and non-destructive determination of seed oil by pulsed Nuclear Magnetic Resonance Technique. J. Amer. Oil Chem. Soc., 51 : 104-109.
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