Inheritance of inorganic and phytic phosphorus in maize (Zea mays l.) Kernel
2018
Authors
Čamdžija, ZoranDragičević, Vesna
Vančetović, Jelena
Stevanović, Milan
Pavlov, Jovan
Filipović, Milomir
Ignjatović-Micić, Dragana
Article (Published version)
Metadata
Show full item recordAbstract
A set of fifteen elite inbred lines of maize (used as mothers) and three tester inbred lines (used as fathers) were investigated using line x tester statistical model, including both hybrids and inbreds. Four traits were measured: grain yield, 1000 kernel weight, phytic phosphorus (Pphy) and inorganic phosphorus (P-i) in the kernel. P-phy content among hybrids ranged from 2.342 to 4.812 g kg(-1) and P-i content from 0.562 to 2.340 g kg(-1), while among inbreds (lines and testers) they ranged from 2.503 to 4.180 g kg(-1) and from 0.587 to 1.629 g kg(-1), respectively. Correlations between the four traits allow breeding for high P, and low Pphy, as well as for both high P-i and phytate, without compromising grain yield. Correlation for hybrids between P-phy and P-i was 0.185 (p lt 0.05) and for inbreds 0.142 (non-significant). General combining ability / special combining ability (GCA/SCA) values for all the traits were below 1 (very low) indicated non-additive inheritance. In the invest...igated set of genotypes, multiple selection indices should be used for simultaneous improvement of grain yield and phosphorus profile of maize grain.
Keywords:
line x tester analysis / phytate / inorganic phosphorus / phytic phosphorusSource:
Genetika, 2018, 50, 1, 299-314Publisher:
- Društvo genetičara Srbije, Beograd
Funding / projects:
- Exploitation of maize diversity to improve grain quality and drought tolerance (RS-31028)
- Improvment of maize and soybean traits by molecular and conventional breeding (RS-31068)
DOI: 10.2298/GENSR1801299C
ISSN: 0534-0012