KERNELS YIELD IN MAIZE EARS - COMPARATIVE STUDY

The kernels yield on corn ears was analyzed in the study. Maize hybrids created within ARDS Suceava were cultivated within ARDS Lovrin, under conditions specific to the Western Plain of Romania. 20 maize hybrids (SV1 to SV20) were tested. The comparative crops was placed on a land with chernozem soil, medium fertility, non-irrigated crop conditions. Ear samples were taken when the plants were physiological maturity. The kernel yield per ear (YE, %) was determined. Values ​​between YE = 70.60±0.85% (SV19) and YE = 86.00±0.85% (SV2) were recorded. Normal distribution of the data series was recorded, with r = 0.959. Anova Test (Alpha = 0.05) confirmed the presence of variance and data safety (p = 0.000662). The calculated mean value of the yield at the experiment level was YE_m = 80.27±0.85%. Compared to the calculated mean value, nine hybrids presented values ​​below the mean of the experiment, and eleven hybrids presented values ​​above the mean. Positive differences, compared to the mean of the experiment, were recorded in the case of hybrids SV2, SV3, SV5 at the level of p<0.001 (***), in the case of hybrids SV13 and SV20 at the level of p<0.05 (**), and respectively in the case of SV8 and SV10 hybrids at the level of p<0.05% (*). Negative differences, compared to the mean of the experiment, were recorded in the case of the SV4, SV7 and SV19 hybrids at the level of p<0.001 (ooo), and in the case of the SV12 and SV16 hybrids at the level of p<0.01 (oo). In the case of the other hybrids, the recorded differences did not show statistical certainty.