Tamanho de parcela e número de repetições em aveia preta

Abstract

RESUMO Os objetivos deste trabalho foram determinar o tamanho ótimo de parcela e o número de repetições, para avaliar a massa verde de aveia preta (Avena strigosa Schreb

Plot size and number of repetitions in vetch

“…This wide variability scenario of ρ, s 2 , m, CV, Xo and CV Xo statistics among 48 uniformity trials is important for the properly dimensioning of plot size and number of repetitions. In field areas, this wide variability has also been observed in other cover crops, such as: black oat (Cargnelutti Filho et al 2014a), jack bean (Cargnelutti Filho et al 2014b), forage pea (Cargnelutti Filho et al 2015a), canola (Cargnelutti Filho et al 2015b), millet (Burin et al 2015;Burin et al 2016) and pigeonpea (Santos et al 2016).…”

“…The ρ estimate was obtained in the rows, according to the methodology of Paranaíba et al (2009) and application in Cargnelutti Filho et al (2014a).…”

“…Similar plot sizes to 4.52 m² were determined to evaluate the fresh matter weight of other cover crops. The determined sizes were: 4.14 m 2 for black oat (Cargnelutti Filho et al 2014a) (Burin et al 2015) and 8.39 m 2 for pigeonpea (Santos et al 2016). In researches carried out by Lithourgidis et al (2006), Tuna and Orak (2007) and Desalegn and Hassen (2015) to assess the fresh matter weight of vetch, the authors utilized plot sizes and useful area exceeding 4.52 m².…”

“…Dimensioning the optimum plot size based on the method of maximum curvature of the coefficient of variation model (Paranaíba et al 2009) and number of repetitions in combinations of treatments and precision levels have been carried out to measure fresh matter weight of cover crops, such as: black oat (Cargnelutti Filho et al 2014a), jack bean (Cargnelutti Filho et al 2014b), forage pea (Cargnelutti Filho et al 2015a), canola (Cargnelutti Filho et al 2015b), millet in evaluation times (Burin et al 2015), millet in sowing and cut times and pigeonpea (Santos et al 2016). For these crops, the optimal plot size oscillated between 4.14 m 2 for black oat (Cargnelutti Filho et al 2014a) and 8.39 m 2 for pigeonpea (Santos et al 2016).…”

“…For these crops, the optimal plot size oscillated between 4.14 m 2 for black oat (Cargnelutti Filho et al 2014a) and 8.39 m 2 for pigeonpea (Santos et al 2016). In these studies, in addition to the plot size, it was dimensioned the number of repetitions in combinations of treatments and precision levels in completely randomized and randomized block designs, which are references for researches with these crops.…”