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https://doi.org/10.18047/poljo.27.2.6

Environmental Variability of Thousand Kernel Weight in Maize Hybrids of Different Maturity Groups

Domagoj Stepinac ; Bc Institut za oplemenjivanje i proizvodnju bilja d.d., Dugoselska 7, 10370 Rugvica, Dugo Selo, Hrvatska
Hrvoje Šarčević ; Sveučilište u Zagrebu, Agronomski fakultet, Svetošimunska cesta 25, 10000 Zagreb, Hrvatska
Ivica Buhiniček ; Bc Institut za oplemenjivanje i proizvodnju bilja d.d., Dugoselska 7, 10370 Rugvica, Dugo Selo, Hrvatska
Mirko Jukić ; Bc Institut za oplemenjivanje i proizvodnju bilja d.d., Dugoselska 7, 10370 Rugvica, Dugo Selo, Hrvatska
Bojan Marković ; CBM AGRO, Antuna Kanižlića 47, 31000 Osijek, Hrvatska
Antun Jambrović ; Poljoprivredni institut Osijek, Južno predgrađe 17, 31000 Osijek, Hrvatska
Ivan Pejić ; Sveučilište u Zagrebu, Agronomski fakultet, Svetošimunska cesta 25, 10000 Zagreb, Hrvatska
Domagoj Šimić ; Poljoprivredni institut Osijek, Južno predgrađe 17, 31000 Osijek, Hrvatska


Puni tekst: engleski pdf 225 Kb

str. 50-55

preuzimanja: 108

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Sažetak

Thousand kernel weight (TKW) is an important yield component trait affected by the environmental conditions. This study’s objectives were to determine an environmental variability for the TKW in 32 maize hybrids, sorted in four FAO maturity groups (FAO300, 400, 500 and 600), and to compare 12 environments in Croatia (six locations in two years) according to the joint linear regression and stability analyses across the maturity groups. In general, the effects of the environment, genotype, and their interaction (GEI) were significant. A three-factor ANOVA revealed the greatest and highly significant year effect, while the location effect was non-significant across all four FAO groups. A stability analysis did not detect any preferences with regard to the locations and trends across the FAO groups. It indicates that all locations in the Pannonian region included in this study were suitable for an evaluation of the TKW in maize genotypes belonging to all maturity groups. The TKW seems to be an appropriate yield-component trait for maize breeding due to a high heritability and linear GEI nature.

Ključne riječi

genotype × environment interaction (GEI), maize, stability analysis, locations, thousand kernel weight

Hrčak ID:

267995

URI

https://hrcak.srce.hr/267995

Podaci na drugim jezicima: hrvatski

Posjeta: 335 *