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| Cargnelutti Filho,Alberto; Alves,Bruna Mendonça; Follmann,Diego Nicolau; Bem,Cláudia Marques de; Schabarum,Denison Esequiel; Stefanelo,Lucas da Silva; Wartha,Cleiton Antonio; Kleinpaul,Jéssica Andiara; Chaves,Gabriela Görgen; Uliana,Daniela Barbieri; Pezzini,Rafael Vieira. |
| ABSTRACT The objectives of this work were to determine the optimum plot size and number of repetitions to evaluate the fresh matter weight of vetch (Vicia sativa L.) in sowing densities. Fortyeight uniformity trials of 6 m × 6 m were conducted. Sixteen trials were evaluated in each sowing density (40, 60, and 80 kg∙ha−1). Each trial was divided into 36 basic experimental units (BEU) of 1 m × 1 m, totaling 1,728 BEU. In each BEU, the fresh matter was weighed. The optimum plot size was determined by the method of maximum curvature of the coefficient of variation model. The means were compared among sowing densities by the Scott-Knott’s test. The number of repetitions — for experiments with completely randomized and randomized block designs, in scenarios of i... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vicia sativa L.; Uniformity trials; Experimental design; Cover crops; Experimental precision. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000200178 |
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| Toebe,Marcos; Cargnelutti Filho,Alberto; Carvalho,Juliana Oliveira de; Tartaglia,Francieli de Lima; Cortes,Alessandra Ferreira; Mello,Anderson Chuquel; Melo,Patrícia Jesus de. |
| ABSTRACT: The objective of this research was to determine the optimal plot size and the number of replications to evaluate the fresh matter of ryegrass sown to haul. Twenty uniformity trials were conducted, each trial with 16 basic experimental units (BEU) of 0.5 m2. At 117, 118 and 119 days after sowing, the fresh matter of ryegrass in the BEUs of 5, 10 and 5 uniformity trials, respectively, were determined. The optimal plot size was determined by the maximum curvature method of the variation coefficient model. Next, the replications number was determined in scenarios formed by combinations of i treatments (i = 3, 4, ... 50) and d minimum differences between means of treatments to be detected as significant at 5% of probability by the Tukey test,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lolium multiflorum L.; Uniformity trials; Experiment planning; Maximum curvature method.. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100204 |
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| Facco,Giovani; Cargnelutti Filho,Alberto; Lavezo,André; Schabarum,Denison Esequiel; Chaves,Gabriela Görgen; Silveira,Daniela Lixinski. |
| ABSTRACT: This study aimed to verify the influence of the basic experimental unit (BEU) size in the estimation of the optimum plot size to evaluate the fresh matter of sunn hemp (Crotalaria juncea L.) using the modified maximum curvature method. The fresh matter of sunn hemp was evaluated in uniformity trials in two sowing season in flowering. In each sowing season, 4,608 BEUs of 0.5×0.5m (0.25m2) were evaluated and 36 BEU plans were formed with sizes from 0.25 to 16m2. In each evaluation period for each BEU plan, using fresh matter data, optimum plot size was estimated through the modified maximum curvature method. Estimation of the optimum plot size depends on the BEU size. Assessing fresh matter in BEUs that are as small as possible is recommended in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crotalaria juncea L.; Modified maximum curvature; Uniformity trials; Experimental planing.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000500203 |
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