scholarly journals Biplot Analysis of Line × Tester Data of Maize (Zea mays L.) Inbred Lines under Stress and Nonstress Environments

2019 ◽  
Vol 47 (3) ◽  
pp. 518-530 ◽  
Author(s):  
B. Badu-Apraku ◽  
R.O. Akinwale
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Inbred Lines ◽  
Biplot Analysis

GENE EFFECTS IN CORN (ZEA MAYS L.): III. RELATIVE STABILITY OF THE GENE EFFECTS IN DIFFERENT ENVIRONMENTS

1962 ◽  
Vol 42 (4) ◽  
pp. 628-634 ◽  
Author(s):  
Edwin E. Gamble
Keyword(s):  
Zea Mays ◽  
Relative Stability ◽  
Seed Weight ◽  
Zea Mays L ◽  
Inbred Lines ◽  
Minor Importance ◽  
Gene Effects ◽  
Population Means ◽  
Additive Gene ◽  
The Cross

Six inbred lines of corn and their F1’s, F2’s, and backcrosses were tested at two locations in each of 2 years. The population means obtained were used to estimate additive, dominance, additive × additive, additive × dominance, and dominance × dominance gene effects for six quantitative attributes.Variance components of cross × environment interactions indicated the presence of major interactions of gene effects with environments. The cross × year interactions were of major importance but the cross × location interactions were of minor importance. Additive gene effects appeared to be the most constant over environments followed by additive × dominance gene effects. The remaining types of gene effects indicated very little stability over environments for most of the attributes studied. Estimates of gene effects were most constant over environments for ear diameter in corn while yield, plant height, and seed weight showed little or no stability of the estimates of the gene effects.

Assessment of heterotic patterns of tropical low‐nitrogen–tolerant maize ( Zea mays L.) inbred lines using testcross performance, morphological traits and SNP markers

2020 ◽  
Vol 139 (6) ◽  
pp. 1113-1124
Author(s):  
Sam O. Ajala ◽  
Muyideen O. Olayiwola ◽  
Anthony O. Job ◽  
Amudalat B. Olaniyan ◽  
Melaku Gedil
Keyword(s):  
Zea Mays ◽  
Morphological Traits ◽  
Zea Mays L ◽  
Inbred Lines ◽  
Snp Markers ◽  
Testcross Performance ◽  
Low Nitrogen
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