SEVERIDADE FITOSSANITÁRIA DE COMPLEXOS DE AGENTES EM FOLHAS DE HÍBRIDOS DE MILHO (Zea mays)

Abstract

Biotic and abiotic complexes affected maize hybrids, resulting in expressive and little quantified together. The objective of this course conclusion paper was to show the temporal progress of phytosanitary in hybrid corn leaves. Thirteen maize hybrids were grown in Ipameri, GO, under seven randomized blocks (dimensions 4x70 m). From temporary samples of 10 plants, detected with sanitary severity (SF) per leaf and per plant through a diagrammatic scale adapted at 81, 95, and 102 days after sowing (DAS), using the area calculation below. plant health progress curve (AACPF) and lesion growth rate (TI) on plant and leaf. In each SF assigned a binary scale (0 for presence, 1 for presence) or the type of biotic and abiotic agent associated with%. Quantitative variables were subjected to hypothesis testing and quantitative variables using the R program. The hybrids least affected by the phytosanitary complexes detected on the first leaf were NS 92 PRO©, AG 8070 PRO3© and Hybrid 1 on the first leaf. were hybrids 1 and 2, CD 3770©, third sheet were hybrids 1 and 2, CD 3612©, CD 3770©, NS 70© and NS 90©, fourth sheet were hybrids 1 and 2, ADV 9434©, CD 3612©, CD 3770© and NS70©, SH 7920©, DKB 290©, ADV 9434©, CD 3612©, NS 70© and NS 92 PRO©. All leaves the most resistant hybrids in the lower middle third (five leaves) deserve to be highlighted during the evaluation cycle of hybrid 1 (1st, 2nd, 3rd and 4th leaves), hybrid 2 (2nd, 3rd and 4th). CD 3612© (3rd, 4th and 5th leaves), CD 3770© (2nd, 3rd and 4th leaves) and NS 70© (3rd, 4th and 5th leaves).