Genotype × environment interaction and selection of maize (Zea mays L.) hybrids across moisture regimes

2021 ◽  
Vol 270 ◽  
pp. 108224
Author(s):  
Ashok Singamsetti ◽  
J.P. Shahi ◽  
P.H. Zaidi ◽  
K. Seetharam ◽  
M.T. Vinayan ◽  
...  
2016 ◽  
Vol 9 (1) ◽  
pp. 28 ◽  
Author(s):  
Adán Aguiluz

Thirty white-grain hybrids in 1210cations and 20 yellow-grain hybrids in 14 locations were evaluated in 1996. The control HB-83 was used for white grains, and control HB-46 was used for yellow grains. Measurement of genotype/environment interaction was obtained through the analysis of additive main effects and multiplicative in~eractions (AMMI model). White hybrids A- 7573, H-53, HN-951, A-7530, CB- XHS-7GMl and CML- 9XCML-47 equaled or surpassed the HB-83 control in 17,8%; 0,1%; 1,1%; 9,2%; 8,1% and 18,7% ofthe cases, respectively, showing little interaction with the environment (AMMI values close to O). Two of these hybrids are from national programs, and three from private seed companies. As for the yellow grains, only the CB-XHS-8GM3, HS-6 and DK-888A hybrids surpassed the control HA-46 in yield, and showed AMMI scores c10se to O: (0,20; -0,07 and -0,12, respectively); all of these belong to private seed companies.


1983 ◽  
Vol 63 (2) ◽  
pp. 371-375
Author(s):  
M. DERIEUX ◽  
J.-B. DUBURCQ ◽  
R. BONHOMME ◽  
F. RUGET ◽  
P. VINCOURT

The number of ovules of the first ear of maize (Zea mays L.) at silking time was studied on three single crosses ranging from very early flint to late maturing, in three locations, from the northern limit of culture for grain to good irrigated conditions of the southeastern part of France. The results show that the ovule number is mainly determined by genotypes and increases with lateness; means are as follows: F7 × F2, 338; WH × WJ, 448; W64A × F546, 589 ovules. The variation among environments is characterized by a CV of 9% but is not significant. Nevertheless a part of this variation seems to be explained by the duration, in terms of heat units, of the sowing-silking period.Key words: Zea mays L., ovule number, genotype-environment interaction


Phyton ◽  
2010 ◽  
Vol 79 (1) ◽  
pp. 39-46 ◽  
Author(s):  
Kandus M ◽  
D Almorza ◽  
R Boggio Ronceros ◽  
JC Salerno

2020 ◽  
Vol 5 (01) ◽  
pp. 45-49
Author(s):  
Ankit Kumar ◽  
Amit Tomar

The results revealed that parents namely, TSK-10, TSK-27, New Blue-II, Kurara and TSK-109 were found highly genetic diverse for days to 50% tasseling, days to 50% silking, days to 755 dry husk. The parents namely, TSK-109, Kurara, New Blue-II and TSK-10 were found highly genetic diverse for plant height (cm), cob height, number of cobs per plant and number of grains per cob. The parents namely, Kurara, TSK-109, TSK-10, New Blue-II and TSK-27 were found highly genetic diverse for shelling percentage, grain yield per plant, grain yield per cob and 100-grain weight.


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