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volume 34 issue 2 (june 2014) : 97-101,   Doi: 10.5958/0976-0547.2014.00023.8

ASSORTMENT OF EXOTIC AND INDIGENOUS MAIZE ACCESSIONS

P
P. Kumar1
R
R.B. Dubey2
1Department of Plant Breeding and Genetics Maharana Pratap University of Agriculture and Technology, Udaipur-313 001, India
Cite article:- Kumar1 P., Dubey2 R.B. (2025). ASSORTMENT OF EXOTIC AND INDIGENOUS MAIZE ACCESSIONS. Agricultural Science Digest. 34(2): 97-101. doi: 10.5958/0976-0547.2014.00023.8.

ABSTRACT

The exotic and indigenous accessions were screened for utilization in breeding programmes. The higher estimates of variability parameters for grain yield, plant height, ear height, logging resistance and tassel branches indicated existence of genetic variation among the accessions. The higher heritability estimates along with higher genetic advance for plant height, ear height, grain yield and tassel branches, indicating presence of additive gene action (s2A) for expression of such traits, which could be improved through direct selection. The correlation coefficient analysis expressed that grain yield could be improved with bold and larger seed size, since it was positively correlated with 100-kernal weight and ear aspect. The path coefficient analysis revealed that days to pollen shed and dry husk; number of upper leaves; logging resistance; tassel branches and ear aspect exhibited positive direct effects, indicating that such traits contributed directly to grain yield. The exotic collection      EC- 477372 exhibited highest grain yield followed by EC-477353 and EC-452455 (46.17%, 42.07% and 38.52% superiority, respectively over best standard check) and can be used for development of improved cultivars.

REFERENCES

  1. Burton, G.W. (1952). Quantitative inheritance in grasses. Proc. 6th Int. Grassld. Cong., 1:277-283.
  2. Dewey, D. R. and Lu, K. H. (1959). A correlation and path coefficient analysis of components of crested wheat grass seed production. Agron. J., 51:515-518.
  3. Fisher, P.A, (1954). Statistical methods for research workers. 12th Edn. Biological Monograph and Manuals, 5:130-131.
  4. Johnson, H. W., Robinson, H. F. and Comstock, R. E. (1955). Estimates of genetic and environmental variability in soybean. Agron. J., 47:314-318.
  5. Panse, V.G. (1957). Genetics of quantitative characters in relation to plant breeding. Indian J. Genet., 17:318-328
  6. Panse, V. G. and Sukhatme, P. V. (1978). Statistical Methods for Agricultural Workers. ICAR New Delhi.
  7. Rafiq, C. M., Muhammad Rafique, Amer Hussain, Muhammad Altaf (2010). Studies on heritability, correlation and path analysis in maize (Zea mays L.). J. Agric. Res. (Lahore), 48:1, 35-38.
  8. Raghu, B., Suresh, J., Kumar, S.S., Saidaiah, P. (2011). Character association and path analysis in maize (Zea mays L.). Madras Agric. J., 98:1/3, 7-9.
  9. Shanthi, P., Satyanarayana, E., Babu, G. S., Kumar, R. S. (2011). Studies on genetic variability for phenological, yield and quality parameters in quality protein maize (QPM) (Zea mays L.). Crop Res. (Hisar); 41: 1/3, 188-191.
  10. Wang Tie Gu Zhao Xin Liang Zhang Huai Sheng Chen Shi Lin (2012). Correlation and path analysis on ear traits of maize hybrid under different yield levels. [Chinese]. J. Henan Agric. Sci., 41:7, 12-16
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    volume 34 issue 2 (june 2014) : 97-101,   Doi: 10.5958/0976-0547.2014.00023.8

    ASSORTMENT OF EXOTIC AND INDIGENOUS MAIZE ACCESSIONS

    P
    P. Kumar1
    R
    R.B. Dubey2
    1Department of Plant Breeding and Genetics Maharana Pratap University of Agriculture and Technology, Udaipur-313 001, India
    Cite article:- Kumar1 P., Dubey2 R.B. (2025). ASSORTMENT OF EXOTIC AND INDIGENOUS MAIZE ACCESSIONS. Agricultural Science Digest. 34(2): 97-101. doi: 10.5958/0976-0547.2014.00023.8.

    ABSTRACT

    The exotic and indigenous accessions were screened for utilization in breeding programmes. The higher estimates of variability parameters for grain yield, plant height, ear height, logging resistance and tassel branches indicated existence of genetic variation among the accessions. The higher heritability estimates along with higher genetic advance for plant height, ear height, grain yield and tassel branches, indicating presence of additive gene action (s2A) for expression of such traits, which could be improved through direct selection. The correlation coefficient analysis expressed that grain yield could be improved with bold and larger seed size, since it was positively correlated with 100-kernal weight and ear aspect. The path coefficient analysis revealed that days to pollen shed and dry husk; number of upper leaves; logging resistance; tassel branches and ear aspect exhibited positive direct effects, indicating that such traits contributed directly to grain yield. The exotic collection      EC- 477372 exhibited highest grain yield followed by EC-477353 and EC-452455 (46.17%, 42.07% and 38.52% superiority, respectively over best standard check) and can be used for development of improved cultivars.

    REFERENCES

    1. Burton, G.W. (1952). Quantitative inheritance in grasses. Proc. 6th Int. Grassld. Cong., 1:277-283.
    2. Dewey, D. R. and Lu, K. H. (1959). A correlation and path coefficient analysis of components of crested wheat grass seed production. Agron. J., 51:515-518.
    3. Fisher, P.A, (1954). Statistical methods for research workers. 12th Edn. Biological Monograph and Manuals, 5:130-131.
    4. Johnson, H. W., Robinson, H. F. and Comstock, R. E. (1955). Estimates of genetic and environmental variability in soybean. Agron. J., 47:314-318.
    5. Panse, V.G. (1957). Genetics of quantitative characters in relation to plant breeding. Indian J. Genet., 17:318-328
    6. Panse, V. G. and Sukhatme, P. V. (1978). Statistical Methods for Agricultural Workers. ICAR New Delhi.
    7. Rafiq, C. M., Muhammad Rafique, Amer Hussain, Muhammad Altaf (2010). Studies on heritability, correlation and path analysis in maize (Zea mays L.). J. Agric. Res. (Lahore), 48:1, 35-38.
    8. Raghu, B., Suresh, J., Kumar, S.S., Saidaiah, P. (2011). Character association and path analysis in maize (Zea mays L.). Madras Agric. J., 98:1/3, 7-9.
    9. Shanthi, P., Satyanarayana, E., Babu, G. S., Kumar, R. S. (2011). Studies on genetic variability for phenological, yield and quality parameters in quality protein maize (QPM) (Zea mays L.). Crop Res. (Hisar); 41: 1/3, 188-191.
    10. Wang Tie Gu Zhao Xin Liang Zhang Huai Sheng Chen Shi Lin (2012). Correlation and path analysis on ear traits of maize hybrid under different yield levels. [Chinese]. J. Henan Agric. Sci., 41:7, 12-16
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