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This work aimed to verify the relationship between the ear size with agronomic characteristics and the production components in triticale. The experiment was conducted in Londrina-PR. In the Brazilian Journal of Animal and Environmental Research Braz. J. Anim. Environ. Res., Curitiba, v. 3, n. 3, p. 2775-2781, jul./set. 2020 ISSN 2595-573X 2776 growing season 2018, 88 triticale genotypes were evaluated. The evaluated traits were: 1) CEE: N ° days from emergence to earing; 2) FBC: Length of the flag sheet (cm); 3) FBL: Width of the flag sheet (cm); 4) ALT: Height of plant (cm); 5) ARI: Length of the edges (cm); 6) ESP: Length of the ear (cm); 7) ETA: Number of spikelets per ear; 8) MG: Mass of grains per ear (g); 9) P100: Weight of 100 seeds (g): Pearson's correlation coefficients and their significance were estimated using the t test, with n-1 degrees of freedom at 5 and 1%. The ear size was not significantly correlated with any other characteristic, except P100. So, it is assumed that the selection for productivity, taking into account ETA and MG, based on the size of the ear would not be efficient in this case. Triticale genotypes with smaller ears do not necessarily have less grain production, as they may present a similar number of spikelets per ear of a genotype with a longer ear. The CEE showed a positive and significant correlation with the ALT (0.40 **) and the ETA (0.36 **), indicating that plants take a greater number of days from the emergence to the spigot presented greater plant height and produced more spikelets per ear.

brazilian journal of animal and environmental research

Correlação entre tamanho de espiga e outros caracteres morfológicos em triticale / Correlation between ear size and others morphological characters in triticale