Abstract: This study aimed at testing four maize hybrids for grains, Severo (FAO270), Kinemas (FAO350): Kornelius (FAO400) and KWS 3381 (FAO450), planted over two consecutive periods with a view to certifying the issue regarding their behaviour under the climate of Banat, SCDA Lovrin area, and to determining their production capacity. The bi-factorial experiment was placed in the experimental field according to the subdivided lots method. The experimental field stretches across 768,4 m2, with the distribution of the four hybrids in six rows of 8m each, three repetitions. The area cultivated with a hybrid is of 33,6 m2. They were planted at a depth of 6-7cm. The density was established at 62000-65000 harvested plants per hectare, and the distance between the rows was 70cm. The fertilization was done with 20:20:0 complex fertilizer, while weeds were fought with chemical products by pre-emerging weed control with Adengo – 0.4l dosage, and post-emerging with Mustang – 0,5l/ha dosage and Gat Motion – 1,5l/ha dosage. During the vegetation period several observations in different phenological stages were made: emergence, flowering, silk, maturation, and their correlation with the climatic and soil conditions. Planting hybrids in the third decade of April ensures a temperature of over 10°C and the necessary humidity for germination hasn’t led to bigger grain productions (STAS 11380 kg/ha) compared to their planting in the first decade of May (11468kg/ha) because of the temperature conditions from the flowering/silk period. These hybrids show a good tolerance to draught and heat. The grain productions were: 8930kg/ha in R2/season I, Kinemas 10651kg/ha in R1/season I, Kornelius 10855kg/ha in R1/season I, and the most productive was KWS 3381 with 11468kg/ha in R2/season II. When harvested, the average humidity of the grains was at 15,8-21,5%.

maize

field crops and pastures

Presentation: poster