Indian Journal of Genetics and Plant Breeding (The)
SCOPUSWeb of Science
  • Year: 2023
  • Volume: 83
  • Issue: 1

Dissection of genotype × environment interaction for green cob yield using AMMI and GGE biplot with MTSI for selection of elite genotype of sweet corn (Zea mays conva. Saccharata var. rugosa)

  • Author:
  • Rumit Patel*, Dinesh J. Parmar1, Sushil Kumar2, Dipak A. Patel2, Juned Memon, Manish B. Patel3, J. K. Patel4
  • Total Page Count: 10
  • Page Number: 59 to 68

1Department of Agricultural Statistics, B. A. College of Agriculture, Anand Agricultural University, Anand, 388 110, India

2Department of Agricultural Biotechnology, Centre of Excellence in Biotechnology, Anand Agricultural University, Anand, 388 110, India

3Main Maize Research Station, Anand Agricultural University, Godhra, 389 001, India

4Agricultural Research Station, Anand Agricultural University, Sansoli, 387130, India

Department of Genetics and Plant Breeding, B. A. College of Agriculture, Anand Agricultural University, Anand, 388 110, India

*Corresponding Author: Rumit Patel, Department of Genetics and Plant Breeding, B. A. College of Agriculture, Anand Agricultural University, Anand, 388 110, India, E-Mail: rumitpatel01@gmail.com

Online Published on 11 August, 2023.

Abstract

Contemporary sweet corn differed from other types of maize due to the presence of a mutated version of one or more modest alleles in the endosperm which participates in starch synthesis. In the present study, 45 sweet corn genotypes were evaluated under three environments, namely, Anand (E1), Godhra (E2) and Sansoli (E3) in Gujarat during rabi 2020-21. Data on 14 characters were subjected to joint analysis of variance. After observing significant G × E interaction except for days to 50% tasseling and silking, the phenotypic stability of sweet corn genotypes for green cob yield was analyzed using multivariate techniques like AMMI and GGE biplots. Which-won-where biplot identifies 1820231/T1 and 1820228/T2 genotypes suitable for Godhra and Anand, respectively. At the same time, discriminativeness and representativeness decipher Anand as highly interactive environment for green cob yield. Y × WAASB biplot identify best genotypes with higher mean performance with excellent stability from the fourth quadrant. Multi-trait stability index identified seven genotypes viz., 1820162/T1 (G28), 1820194/T2 (G37), I-07-34-3-1 (G19), 1820164/20 (G3), I-07-62-22-5 (G24), 1820192/C4-20 (G16) and 1820214/C1-20 (G30) with higher phenotypic stability and mean performance for all interactive traits.

Keywords

Sweet corn, AMMI, GGE biplot, MTSI, Green cob yield, Stability