Comparative performance and genotype by environment interaction effects on grain yield of single and multiple crosses of maize (Zea mays L.)

Authors

  • Katragadda Sumalini Agricultural Research Station, PJTSAU, Kampasagar, Telangana State, India- 508 209
  • Tekale Pradeep Director of Research, PJTSAU, Hyderabad, Telangana State, India- 500 030
  • Dinasarapu Sravani Agricultural Research Station, PJTSAU, Karimnagar, Telangana State, India- 505 001

Keywords:

Maize, hybrids, interaction deviate, genotype environment interaction, grain yield

Abstract

A set of 256 entries involving seven parents and their single, three-way and double crosses derived through half diallel were evaluated along with private/public hybrids for grain yield in a balanced lattice design at three environments during kharif 2015. ANOVA revealed that TWC × Parents, DC × TWC, DC × SC, DC × Parents, SC × Parents interaction were significant at all the locations. Mean squares for singles, double and three-way crosses were similar at Hyderabad, Karimnagar locations and at Palem location with high mean squares for three-way crosses. Data were also obtained on the variety × environment interaction patterns for the three types of crosses. Significant interaction deviate was higher for double crosses followed by three-way crosses and single crosses.Average yield of double crosses was 37 kg ha-1 greater than that for single crosses, and the average for single crosses was 143 kg ha-1 greater than for three-way crosses. The range of single crosses was 483 kg ha-1 less than that for three-way crosses and 30 kg ha-1 greater than that for double crosses. Stability analysis for grain yield showed significant genotype × environment interaction in all the three classes of hybrids and the crosses (BML-51 × BML-10) × (BML-6), (BML-51 × BML-32) × (BML-13 × BML-6) and (BML-13 × BML-7) × (BML-10 × BML-6) were found to be stable, had average response to all environments, hence these are need to be exploited to combat biotic and abiotic stresses arising through climate change.

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Published

2019-01-21

Issue

Vol. 63 No. 3 (2018)

Section

Articles

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