Avaliação de híbridos de milho adaptados para o sudoeste do Paraná na safra 19/20

Abstract

Corn (Zea mays L.) is a cereal grown worldwide and the basis for human and animal food, it can be consumed both in natura and industrialized, and makes up an immense amount of derivatives. Annually, new hybrids access the market, and the evaluation of the productive potential of this hybrid is important to support the producer. The study was carried out at the Federal Technological University of Paraná of Dois Vizinhos in the Teaching and Research Unit of Annual Cultures, having as predominant soil Oxisol Red Dystrophy, with the cultivation of eleven hybrids, AG8780 PRO3, MG515 PW, MG545 PW, MG580 PW , P30F53 VYHR, AS1757 PRO3, MG300 PW, AG9025 PRO3, MG320 PW, DKB230 PRO3 and DKB240 PRO3 in the 19/20 season. Similar productivity was observed among all hybrids, except the MG300 PW and MG320 PW with values of 9,178.48 and 8,828.89 kg ha-1 respectively, being below even the average found in the work. In the NGE variable, the highest number was found in the MG515 PW hybrid. Both hybrids, although not differing for population and dominated plants, showed low values among the others. For MMG, it was observed that the hybrid MG545 PW, stood out among the others with 394.50 g. It was observed that even though the individual adjustment of the disk and ring by seeded hybrid, a certain heterogeneity in the distribution of seeds is perceived. There was a difference between hybrids for the number of double and dominated plants, which may have interfered with the final productivity result. The AS1757 PRO3, MG320 PW and DKB230 PRO3 hybrids presented the biggest plantability problems, this can be signified by the type of seed, unpaired seeds in the lot, suggesting with this work that research involving the evaluation of potential of corn hybrids have their plots sown manually in order to reduce experimental error due to plant stand problems, obtain greater accuracy and isolate this error factor.