ISSN 2284-7995, ISSN Online 2285-3952
 

BEHAVIOR OF SOME GM AND CONVENTIONAL MAIZE HYBRIDS UNDER DROUGHT AND HEAT CONDITIONS

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 3
Written by Dorina BONEA, Ioana Claudia DUNĂREANU

Since 2007, the GM maize event MON 810 (resistant to insects Lepidopteran) is authorized for cultivation in Romania, but since 2016 the farmers have given up cultivating it for various reasons. In this study, the main agronomic parameters of genetically modified (GM) maize hybrid (MON 810 - trade name: DKC 5784 YG) and of two conventional maize hybrids (Deliciul verii and F 376) were compared under drought and heat conditions during two years at Agricultural Research and Development Station (ARDS) Șimnic. The hybrid affected statistically significant (P≤0.05) all evaluated parameters. Similarly, climatic conditions (year) significant influenced all evaluated parameters with the exception of the days to tasseling. The GM hybrid confirmed ability to protect itself against the Ostrinia nubilalis (ECB) and the drought, and its average grain yield was higher by 1.33 - 1.69 t/ha in comparison with conventional maize hybrids. The results showed a higher level of attack on conventional maize hybrids in extremely dry year 2012 compared to 2013. Thus, adopting GM maize crops can effectively address the drought stress and its consequences for sustainable maize crop production in the dry Oltenia region.

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© 2019 To be cited: Scientific Papers. Series “Management, Economic Engineering in Agriculture and Rural Development“.

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