Productive variability, border use and plot size in trials with cherry tomato

Abstract

Knowing the productive variability within protected environments is crucial for choosing the experimental design to be used in that conditions. Thus, the aim of the present study was to assess the variability of fruit production in protected environment cultivated with cherry tomatoes and to verify the border effect and plot size in reducing this variability. To this, data from an uniformity test carried out in a greenhouse with cherry tomato cv. ‘Lili’ were used. Total fresh mass of fruits per plant was considered being these plants arranged in cropping rows parallel to the lateral openings of the greenhouse and also the same plants arranged in columns perpendicular to these openings. To generate the borders, different scenarios were designed by excluding rows and columns and using different plot sizes. In each scenario, homogeneity of variances among the remaining rows and columns was tested. There is no variability of fruit production among rows or columns in trials with cherry tomatoes carried out in greenhouses and the use of border does not bring benefits in terms of reduction of coefficient of variation or reduction of cases of variance heterogeneity among rows or columns. Plots with a size equal to or greater than two plants make possible to use the completely randomized design in the cherry tomato trials in greenhouses.

Correlação entre caracteres fisiológicos e agronômicos para tomateiro

“…Observa-se que entre os teores de clorofila e massa seca foram obtidos valores de correlação de grandes a moderados. Estes resultados estão de acordo com demais trabalhos de tomateiro (Sari et al, 2017;Santos et al 2018;Diel et al, 2019). Contudo, Albino et al (2018), encontraram correlação linear positiva e significativa para o número de folhas e Reis et al (2013) relataram que as plantas com maior número de folhas apresentaram os maiores rendimentos.…”