Correlation, heritability and path analysis of grain yield components in some maize genotypes (Zea mays L.)
Аутори
Kovačević, AleksandarPavlov, Jovan
Stevanović, Milan
Delić, Nenad
Mladenović, Marko
Perić, Sanja
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Maize (Zea mays L.) is an important cereal crop of the world and plays a key role in
worldwide agriculture with highest production and productivity. Maize is also an important
grain crop grown in Serbia, used as a component of feed. Many studies have been conducted
on correlations, heritability and path analysis on grain yield. The results have been widely
used in maize breeding programs. The present research was carried out at the Maize Research
Institute “Zemun Polje” in Serbia during the 2021 growing season effects of grain yield and
quantitative traits of maize. Six inbred lines were crossed according to complete diallel
method. In this way fifteen hybrids and fifteen reciprocal combinations were obtained. The
hybrids and reciprocal combinations derived from these parental components were used in
this paper. The objective of study was to estimate direct and indirect effects of five
morphological traits on grain yield by the application of the simple coefficient correlatio...n,
heritability and path coefficient analysis. 1000-kernel weight with the value of 0.365 had the
strongest direct positive effect on grain yield. Positive direct effects on grain yield were also
observed for ear length (0.202), ear diameter (0.248) and number of rows per ear (0.076),
while negative direct effects were observed for cob diameter (-0.057). Thousand-kernel
weight had the highest indirect positive effect on grain yield via ear diameter (0.232). Cob
diameter had highest negative indirect effect on grain yield via ear diameter (-0.048). The
coefficient of multiple determination (R2y12345) had a value of 0.428.
Кључне речи:
correlations / heritability / path analysis / grain yield / maizeИзвор:
14. international scientific agriculture symposium “AgroSym 2023" - Book of proceedings, 2023, 195-Издавач:
- East Sarajevo : University of East Sarajevo, Faculty of agriculture