Experimental plan for carrot culture

• Published in: Ciência rural 2024-06, Vol.54 (10)
• Main Authors: Lambrecht, Darlei Michalski, Sgarbossa, Jaqueline, Diel, Maria Inês, Lúcio, Alessandro Dal’Col, Marques, Lucas Encarnação, Raddatz, Iara Cristina, Tischler, André Luís, Tartaglia, Francieli de Lima, Engers, Lana Bruna de Oliveira, Soncini, Ingrid Rodrigues, Kuhn, Marcielli Matiazzi
• Format: Article
• Language: eng ; por
• Subjects: AGRONOMY; Daucuscarota L; number of replicates; plot size; sample size
• ISSN: 1678-4596; 1678-4596
• DOI: 10.1590/0103-8478cr20230428

The carrotculture stands out on the world stage due to its nutritional characteristics and economic importance, an aspect that demands the constant development of research aiming greater productivity. Thus, this study proposed an experimental plan, determining the estimates of plot size, sample size, and number of repetitions, with the purpose of increasing the precision and reliability of the results of the experiments with the carrot crop. Six uniformity trials were conducted, using three cultivars in two growing seasons (Season: 2019 and 2021).Each plant was considered a basic experimental unit and in each BEU, the variables shoot height, root length, shoot fresh mass, root fresh mass, and root diameter were measured. The size of the plot, sample, and the number of repetitions was estimated by the method of maximum curvature of the coefficient of variation. The results recommend that for experiments with the carrot crop, plots with twelve plants should be used. For a sampling of carrot plants in the plot, samples of eleven plants must be used in the direction of the row, considering a semi-amplitude of the confidence interval (D%) equal to 20% of the mean, with a confidence level of 95%. For a minimum significant difference in the Tukey test expressed as a percentage of the 50% mean, plots of twelve plants per crop row, with eight replicates, are recommended.