Plot Size in Sugarcane Family Selection Experiments

Henrique, Márcio Couto; Barbosa, Pereira; Peternelli, Luíz Alexandre; Cláudio, Luís; Silveira, Inácio da

doi:10.13082/1984-7033.v01n03a07

Cited by 8 publications

(8 citation statements)

References 6 publications

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“…Figure 1C shows that the plot size for mean Brix can also be reduced to two rows, in other words, 14 plants. Similarly to this, in a study mentioned above, Barbosa et al (2001) found that family Brix could be accurately estimated with a 10-plant plot sample.…”

Section: Resultssupporting

confidence: 58%

“…The best plot size found for stalk number (SN) would be two rows, i.e., with 14 plants ( Figure 1A). In a more recent study, developed in the sugarcane breeding program at the UFV, Barbosa et al (2001) concluded that 50-plant plots would be enough to estimate the stalk number in trials with families. It was observed that the CV e increases with decreasing plot size (Table 1 and Figure 1A).…”

Section: Resultsmentioning

confidence: 99%

“…Recommendations found in literature on the minimum representative sample size for sugarcane are however (Wu et al 1977, Wu et al 1978, Mariotti et al 1981, Peixoto and Ricci 1984, Barbosa et al 2001. The suggestions for sample size vary according to the parameter to be estimated as well as the type of trait under evaluation.…”

Section: Introductionmentioning

confidence: 99%

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Effects of plot size on the estimation of genetic parameters in sugarcane families

Leite

Paternelli

Barbosa

2006

CBAB

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-An optimization of the use of resources in sugarcane breeding programs that would not interfere with the genetic evaluations is desirable and of great importance. The costs could be reduced and the chances of success would be higher through the possibility of investing rationally in a larger number of available genetic resources. Our study evaluated the smallest number of rows per plots of sugarcane families for yield traits; the variations in the parameter estimates for different plot sizes were discussed; and the ideal plot size was estimated by the maximum curvature method. Plot reduction leads to gradual CV increases and interferes with the ratio CV

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Section: Resultssupporting

confidence: 58%

Section: Resultsmentioning

confidence: 99%

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Effects of plot size on the estimation of genetic parameters in sugarcane families

Leite

Paternelli

Barbosa

2006

CBAB

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“…Many methods have been assessed with this aim, either from blank test (Meier and Lessman, 1971;Paranaíba et al, 2009;Lorentz et al, 2012) or from experiments involving analyses of variance (Pimentel-Gomes, 1984;Lin and Binns, 1984;Barbosa et al, 2001). The method proposed by Lin and Binns (1984) is used to estimate intra-block correlation and heterogeneity index, which is easier to perform than the methods involving blank assays.…”

Section: Introductionmentioning

confidence: 99%

Optimum plot size for experiments with papaya genotypes in field

Schmildt¹,

Nascimento²,

Nascimento³

et al. 2018

Afr. J. Agric. Res.

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The objective of this study was to determine a suitable plot size for field experiments with papaya genotypes. Two experiments were carried out using a randomized complete block design with 11 and 12 papaya genotypes, respectively. In both experiments, plots consisted of one row, with 10 plants each. Spacing between rows was 3.5 m, with 1.5 m between plants. The characteristic evaluated was fruit production in t ha -1 in first year of cultivation, and the basic unit used was one plant. Suitable plot size was estimated using Lin and Binns, and Hatheway's methods. These methods are complementary and should be used together in the determination of the optimum plot size. The results of these tests showed that the optimum plot size for the evaluation of yield in papaya was four plants by plot with four replications each assuming 30% of the precision for establishing differences among the means of two genotypes.

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“…However, if the number is too small, the accuracy can be reduced, decreasing the efficiency of selection (Barbosa et al 2001, Ramalho et al 2005. It is therefore desirable to identify the minimum number of plants per plot without affecting the efficiency of the process.…”

Section: Notementioning

confidence: 99%

Minimum number of common bean plants per plot to assess field resistance to white mold

Carneiro

Zeviani

Santos

et al. 2011

Crop Breed. Appl. Biotechnol.

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-This study aimed to determine the minimum number of plants per plot to assess the field resistance in common bean to white mold. Thirteen cultivars were inoculated with six isolates of Sclerotinia sclerotiorum and evaluated in a randomized block design with three replications and plots consisting of 1-m rows with 15 plants. Plants were inoculated by the straw test as proposed by Petzoldt and Dickson (1996)

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Plot Size in Sugarcane Family Selection Experiments

Cited by 8 publications

References 6 publications

Effects of plot size on the estimation of genetic parameters in sugarcane families

Effects of plot size on the estimation of genetic parameters in sugarcane families

Optimum plot size for experiments with papaya genotypes in field

Minimum number of common bean plants per plot to assess field resistance to white mold

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