Biochemical and physical kernel properties of a standard maize hybrid in different TopCross™ Blends

Authors

  • Jelena Vancetovic Maize Research Institute Zemun Polje; Research and Development Dept.
  • Dragana Ignjatovic-Micic Maize Research Institute Zemun Polje; Research and Development Dept.
  • Dejana Trbovic Institute of Meat Hygiene and Technology; Dept. of Chemical and Physicochemical Analysis
  • Nenad Delic Maize Research Institute Zemun Polje; Research and Development Dept.
  • Sofija Bozinovic Maize Research Institute Zemun Polje; Research and Development Dept.
  • Ana Nikolic Maize Research Institute Zemun Polje; Research and Development Dept.
  • Marija Kostadinovic Maize Research Institute Zemun Polje; Research and Development Dept.

DOI:

https://doi.org/10.1590/1678-992x-2016-0302

Keywords:

Zea mays L., high oil, pollinators

Abstract

A pilot experiment was undertaken in order to examine high oil populations of maize (Zea mays L.) to be used as pollinators in TopCross blends with commercial ZP341 standard hybrid. Five high oil populations (HOPs) from the Maize Research Institute (MRI) gene bank were chosen for this research, according to their high grain oil content, synchrony between silking of ZP341 and anthesis of the populations and good agronomic performances in 2012. Selfing of ZP341 and HOPs, as well as crosses of ZP341 cmsS sterile × HOPs were carried out in 2013. Oil content, fatty acid composition, protein and tryptophan content, and physical characteristics of the obtained kernels were measured. Four HOPs showed significant positive influence on the oil content in the TopCrosses (TC), 16.85 g kg−1 on average. Oleic acid, which is the principal monounsaturated fatty acid, was significantly lower in all HOPs and all TCs, while selfed ZP341 had almost twice the average value typical for standard maize. However, this decrease in TCs was in a narrow range from 1 % (in TC-3) to 5 % (in TC-4) and the oleic content of TCs was on average higher by 60 % compared to the typical standard maize. Different favorable and unfavorable significant changes were detected in fatty acid compositions, protein and tryptophan contents and physical kernel properties for each potential TC combination. Results indicate differences in gene effects present in different TC combinations and underscore the need to examine each potential TC blend by conducting similar simple experiments.

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Published

2017-12-01

How to Cite

Vancetovic, J., Ignjatovic-Micic, D., Trbovic, D., Delic, N., Bozinovic, S., Nikolic, A., & Kostadinovic, M. (2017). Biochemical and physical kernel properties of a standard maize hybrid in different TopCross™ Blends. Scientia Agricola, 74(6), 461-468. https://doi.org/10.1590/1678-992x-2016-0302

Issue

Section

Crop Science