Published in Scientific Papers. Series A. Agronomy, Vol. LXIV, Issue 1
Written by Elena BRAN, Mihaela DAN, Mirela CINDEA, Luxiţa RÎŞNOVEANU Alexandru BRAN
The breeding activity for obtaining maize and sunflower hybrids, having high genetic potential for the grain yield, also good stability, in different environment conditions is of great importance for the management of these crops. The yield potential brings the highest contribution to the crop efficiency. To increase the grain yield it is necessary to have a good developing of the plants in different growing conditions, respectively the plants need to have favourable growing conditions to express their yielding potential. The objective of the present paper is to present the results obtained at 4 maize and 4 sunflower hybrids studied in the field conditions of the Central Moldavia (East Romania), during three years (2018, 2019 and 2020). It was intended to find out the influence of climatic conditions on the grain yield of the studied hybrids, but also on the oil and protein content of the grains. Comparing the three years, regarding the air temperatures and the amount of rainfall in the growth period of the two crops (maize and sunflower), the year 2018 was dryer comparing with 2019 year, and the 2020 year was the driest from all three at the beginning of the growing period despite the fact that later there were registered important rainfall. The studding of genotypes under different climatic conditions allows to identify the genotypes with good adaptation capacity. The grain yields of the maize and sunflower hybrids were influenced significantly by year, respectively by the climatic conditions of the year. The protein content in the maize hybrids and the oil content both for maize and sunflower hybrids are much more stable than the grain yield in different growing conditions.
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