Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 25 ISSUE 2
Written by Alina Laura AGAPIE, Marinel Nicolae HORABLAGA, Busuioc VACARIU, Ovidiu EREMI, Florin SALA

Maize hybrids, provided by Research and Development Agricultural Station-ARDS Suceava, were tested in comparative crop, under the specific conditions of the Western Plain of Romania. Field experiments were carried out in the ARDS Lovrin. Twenty maize hybrids were tested (SV_1 to SV_20, experimental codes). The protein content of the grains (Pro, %) was evaluated. The protein content varied between Pro = 9.45±0.09% (SV_13), and Pro = 12.40±0.12% (SV_17). Comparative analysis between hybrids (PHC), led to 190 combinations. There were 45 statistically significant positive differences; 13 differences with p<0.05 level (*), eight differences with p<0.01 level (**), and 24 differences with p<0.001 level (***). There were 19 negative differences with statistical certainty; two differences with p<0.05 level (o), three differences at the p<0.01 level (oo), and 14 differences at the p<0.001 level (ooo). In relation to the mean value (Pro_m = 10.69±0.18%), some hybrids presented higher values (nine hybrids), and other hybrds presented lower values (11 hybrids). Significant increase in protein growth was recorded by hybrid SV_17 (Pro = 1.71%), followed by hybrid SV_5 (Pro = 1.46%). Maize hybrids with genetic advantage for protein production have been identified, for breeding programs and agricultural practice.

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