Relationship between heterosis, potence ratio and genetic distance for yield traits in maize (Zea mays)

Authors

  • SUMALINI KATRAGADDA Agricultural Research Station, Professor Jayashankar Telangana State Agricultural University, Karimnagar, Telangana 505 001, India
  • PRADEEP TEKALE Agricultural Research Station, Professor Jayashankar Telangana State Agricultural University, Karimnagar, Telangana 505 001, India
  • SRAVANI DINASARAPU Agricultural Research Station, Professor Jayashankar Telangana State Agricultural University, Karimnagar, Telangana

DOI:

https://doi.org/10.56093/ijas.v93i1.105848

Keywords:

Heterosis, Maize, Potence ratio, Parental divergence, Single crosses

Abstract

An experiment was conducted during 2014–18 at Agricultural Research Station, Professor Jayashankar Telangana State Agricultural University, Karimnagar, Telangana to find out the relationship between heterosis, potence ratio and genetic distance for yield contributing characters in maize (Zea mays L.). Heterosis was trait dependent exhibiting high level for plant height, ear height, ear length, kernels/row, 100-kernel weight, grain yield and fodder yield. Two hybrids BML-51 × BML-14 (22.1%) and BML-51 × BML-6 (13.2%) recorded heterosis of greater than 10% over the check NK6240 and exhibited negative heterosis for flowering and maturity traits and positive heterosis for the remaining traits. Potence ratio indicated that majority of the traits in the hybrids had over dominance gene effect and expressed over dominance for ear length, ear diameter, kernels/row, fodder yield and grain yield suggesting heterosis breeding is an appropriate strategy for improvement of these traits. Standard heterosis of greater than 5% was observed in 7 crosses and out of these 6 belonged to mid parental divergence group. Five crosses, viz. BML-51 × BML-14, BML-51 × BML-7, BML-51 × BML-6, BML-32 × BML-13 and BML-32 × BML-6 with yield ranging from 7637 to 8733 kg/ha belonged to the medium parental divergence group comprising of high yielding inbreds, viz. BML-51 or BML-32 as parents. Grain yield heterosis was found significant and positively correlated with heterosis for ear length and 100-kernel weight. Therefore to maximize the full genetic potential of hybrids, inbreds with high per se performance and intermediate genetic divergence are to be involved in maize crop improvement programmes.

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References

Anilkumar C and Lohithaswa H C. 2018. Heterotic hybrid frequency in relation to combining ability and parental genetic divergence in maize. Electronic Journal of Plant Breeding 9(4): 1322–34.

Begum S, Alam S S, Omy S H, Amiruzzaman M and Rohman M M. 2018. Inheritance and combing ability in maize using a 7×7 diallel cross. Journal of Plant Breeding and Crop Science 10(9): 239–48.

Datta D, Mukheijee B K, Das S P and Barua N S. 2004. Studies on heterosis and its relation to genetic divergence in maize (Zea mays L.) inbred lines. Cereal Research Communications 32(4): 443–50.

Eberhart S A, Russell W A and Penny L H. 1964. Double cross hybrid prediction in maize when epistasis is present. Crop Science 4(4): 363–66.

Flint-Garcia S A, Buckler E S, Tiffin P, Ersoz E and Springer N M. 2009. Heterosis is prevalent for multiple traits in diverse maize germplasm. PloS one 4(10): e7433.

Ghosh A, Das P K, Ghosh A and Kundagrami S. 2018. Heterosis, Potence Ratio and Genetic Distance for yield and yield contributing traits in single cross maize hybrids. Maydica 63(1): 1–9.

Griffing B. 1956. Concept of general and specific combining ability in relation to diallel crossing systems. Australian Journal of Biological Sciences 9(4): 463–93. http://www.rstudio.com

Mahesh B, Parvati P, Gangadhar Rao P, Pradeep Kumar J and Pitchaimuthu M. 2017. Heterosis and potence ratio of male sterility and fertility line based hybrids of okra (Abelmoschus esculentus (L.) Moench) for yield and its components. International Journal of Science and Nature 8(2): 186–92.

Mather K. 1949. Biometrical Genetics. Dover Press, New York.

Mather K and Jinks J L. 1971. Biometrical Genetics, 2nd edn. Chapman and Hall Ltd., London.

Rohman M M, Omy S H, Begum S, Rahman M A, Hossain M G, Hoque M M and Amiruzzaman M. 2019. Genetic action and potence ratio of maize in an 88 diallel cross growing under saline condition. Journal of Plant Breeding and Crop Science 11(1): 17–25.

Russell W A, Eberhart S A and Vega U A. 1978. Recurrent selection for specific combining ability for yield in two maize populations. Crop Science 13: 257–61.

Shapiro S S and Wilk M B. 1965. An analysis of Variance Test for Normality (Complete Samples). Biometrika 52(3/4): 591–611.

Smith H H. 1952. Fixing Transgressive Vigour in Nicotiana Rustica. Heterosis. Iowa State College Press, Ames.

Sumalini K, Pradeep T and Sravani D. 2018. Comparative performance and genotype by environment interaction effects on grain yield of single and multiple crosses of maize (Zea mays L.). Maydica 63(3): 1–12.

Sumalini K, Pradeep T and Sravani D. 2019. Performance, heterosis and heritability in single, three-way and double cross hybrids of maize (Zea mays L.). The Bioscan 14(2): 91–100.

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Published

2023-01-17

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How to Cite

KATRAGADDA, S., TEKALE, P., & DINASARAPU, S. (2023). Relationship between heterosis, potence ratio and genetic distance for yield traits in maize (Zea mays). The Indian Journal of Agricultural Sciences, 93(1), 41–45. https://doi.org/10.56093/ijas.v93i1.105848
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