TY  - JA
AU  - Singamsetti,A.
AU  - Shahi,J.P.
AU  - Zaidi,P.H.
AU  - Seetharam,K.
TI  - Study on applicability of genotype × yield × trait (GYT) biplots over genotype × trait (GT) biplots in selection of maize hybrids across soil moisture regimes
SN  - 0367-8245
PY  - 2022///
CY  - Haryana (India)
PB  - Agricultural Research Communication Centre
KW  - Correlation
KW  - AGROVOC
KW  - Drought
KW  - Waterlogging
KW  - Maize
KW  - Hybrids
KW  - Soil Water Content
N1  - Peer review
N2  - Background: A large area of the maize production in Indo-Gangetic plains of India exposes alternative and combination of prolonged drought spells and heavy rainfall situation due to uncertainty of monsoon patterns. In such context, breeding for maize hybrids with cross-tolerant to both low and excess soil moisture stresses remain the ultimate alternative. Methods: Evaluation of 75 maize hybrids planted at Banaras Hindu University, India during the subsequent Rabi and Kharif seasons of 2017 and 2018, respectively. The hybrids were evaluated for acquiring information on inter-trait associations among yield and yield-related traits under different soil moisture regimes. The trials were planted in alpha-lattice design and managed stress was imposed and data recorded. Result: As our investigation was the evident of weak correlations among the traits studied, genotype × trait (GT) biplots are not advisable to select/ discard the genotypes under moisture stress conditions. The goodness of fit for GT biplots constructed under studied moisture conditions were almost poor because of fair to moderate correlations among the traits. To accomplish this problem of weak associations, genotype × yield × trait (GYT) technique was advisable to perform the precise selection of genotypes under studied environments. The investigation emphasized on accuracy and adequacy in implementing of GYT biplots for characterizing and selecting suitable hybrids
T2  - Indian Journal of Agricultural Research
ER  -