ISSN 2285-5785, ISSN CD-ROM 2285-5793, ISSN ONLINE 2285-5807, ISSN-L 2285-5785
 

RESULTS REGARDING THE CORRELATION OF THE YIELD OF GRAINS WITH THE YIELD OF DRY MATTER AT MAIZE CROP

Published in Scientific Papers. Series A. Agronomy, Vol. LVIII
Written by Adrian Gheorghe BĂŞA, Viorel ION, Marin DUMBRAVĂ, Alexandru FÎNTÎNERU, Lenuţa Iuliana EPURE, Georgeta DICU, Daniel STATE

Under optimal conditions it is expected that grain yield correlates positively, at least to some point with the biologicalyield, respectively the yield of above-ground dry biomass. But, the influence of different growing factors affects thiscorrelation. In this respect, the aim of the paper was to present the results we have obtained at maize in South Romaniaat different hybrids and under different growing conditions (different environmental and technological conditions)regarding the correlation of the yield of grains with the yield of dry matter. In view to achieve this aim, fieldexperiments were performed in 2012 and in 2013 in different locations from South Romania. In 2012, ten maize hybridswere studied in four locations, while in 2013 five maize hybrids were studied in two locations, which representeddifferent soil and climatic conditions. Moreover, in 2013 each studied hybrid was studied under three row spacing (75cm, 50 cm, and twin-rows of 75/45 cm) and three plant densities (60,000, 70,000, and 80,000 plants ha-1). Underclimatic conditions of 2012 and in different locations from South Romania, the yield of grains of the studied maizehybrids correlated positively with the yield of dry matter. At different row spacing and plant populations, the yield ofgrains correlated differently with the yield of dry matter according to growing conditions.

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