Plot size and number of repetitions in black oat

Ciência Rural

Burin, Cláudia²  Facco, Giovani²  Toebe, Marcos²  Stefanello, Réges Bellé¹  Santos, Gustavo Oliveira dos²  Alves, Bruna Mendonça²  Cargnelutti Filho, Alberto³  Neu, Ismael Mario Márcio¹ 

[1] Santa Maria, Santa Maria, Brazil;UFSM, Santa Maria, Brazil;Universidade Federal de Santa Maria, Santa Maria, Brazil

关键词: Avena strigosa Schreb;    experimental design;    experimental precision;   

DOI  :  10.1590/0103-8478cr20131466

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

The objectives of this research were to determine the optimum plot size and number of repetitions, to evaluate the fresh weight of black oat (Avena strigosa Schreb). Eighteen uniformity assays of 8m×8m (64m2) were conducted. Each assay was divided in 64 basic experimental units (UEB) of 1m×1m, totaling 1,152UEB. The fresh weight of plants, in each UEB was weighed. Nine assays (576UEB) were evaluated at 102 days after sowing and the other nine assays (576UEB) at 106 days after sowing. The optimum plot size (Xo) was determined by the method of maximum curvature of the model coefficient of variation and the means compared, among evaluation times, by Student's t test. The number of repetitions for experiments on completely randomized and randomized block designs, in scenarios of combinations of i treatments (i=3, 4, ..., 50) and d minimal differences between treatments means, to be detected as significant, 5% probability by Tu

【 授权许可】

Unknown