Pre-harvest Sprouting Tolerance of Triticale Genotypes in Brazil

Carlos Henrique dos Santos Fernandes, Klever Márcio Antunes Arruda, Inês Cristina Batista da Fonseca, Claudemir Zucareli and Juliana Sawada Buratto

Journal of Agricultural Science, 2024, vol. 13, issue 1, 53

Abstract: Pre-harvest sprouting (PHS) represents one of the main factors, which causes yield, technological and physiological losses in triticale seeds (X Triticosecale Wittmack). This work aimed to rate the variability and identify potential pre-harvest sprouting tolerant sources in triticale genotypes. Based on that, 32 triticale and three wheat genotypes were sown in 2016, 2017 and 2018 growing seasons, in Londrina-PR, Brazil. After the ears harvesting, these were submitted to simulate raining, for sprouting induction, through nebulization in a greenhouse. After nebulization, ears were sun dried, later hand threshed to determain, grain germination percentage (GERM) and hectoliter weight (HW). Additionally, it was determined grains HW of ears, whom were not submitted to nebulization, as well as the whole meal flour falling number (FN). The experiment design was completely randomized design, with two replications, and the experimental unit was made of 20 ears. The data collected were subjected to analysis of variance (ANOVA) and Scott-Knott test. Frontana, ND 674 and Quartzo are a source of tolerance to PHS in wheat. In triticale genotypes, genetic variability was observed for GERM, FN, and HW prior and after nebulization. The triticale genotypes BRS Netuno, BRS Saturno, TCL 15116, X 092181, Tiguera 1 and Tiguera 8, where tolerant towards PHS.

Date: 2024
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