Minimum plot size to evaluate potato tuber yield traits

Pereira, Arione S; Silva, Giovani O; Carvalho, A. D. F. de

doi:10.1590/s0102-05362017042020

Cited by 5 publications

(5 citation statements)

References 14 publications

(13 reference statements)

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“…The maximum modified curvature method (MMCM), through a regression equation, algebraically determines the optimal point of the plot size using the relationship between the coefficients of variation and its respective sizes (Pereira et al, 2017). With this model it is possible to minimize experimental error, optimize resources and ensure maximum precision (Cargnelutti Filho et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Size of plots for experiments with cactus pear cv. Gigante

Guimarães

Donato

Aspiazú

et al. 2019

Rev. bras. eng. agríc. ambient.

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The definition of experimental plot size is an essential tool to ensure precision in statistical analysis in experiments. The objective of this study was to estimate the plot size for the cactus pear cv. Gigante using the Modified Maximum Curvature Method, under the semi-arid conditions of Northeastern Brazil. The uniformity test was conducted at the Federal Institute of Bahia, Guanambi Campus, Bahia state, Brazil, during the agricultural period from 2009 to 2011. The spatial arrangement was composed of ten rows with 50 plants each, whose evaluated area was formed by the eight central rows with 48 plants per row, making 384 plants and area of 153.60 m2. The following variables were evaluated: plant height; length, width and thickness of cladode; number of cladodes; total area of cladodes; cladode area and green mass yield in the third production cycle. In the evaluations, each plant was considered as a basic experimental unit (BEU), with an area of 0.4 m2, comprising 384 basic units (BU), whose adjacent ones were combined to form 15 pre-established plot sizes with rectangular shapes and in rows. The characteristics total area of cladodes and green mass yield require larger plot sizes to be evaluated with greater experimental accuracy. For experimental evaluation of cactus pear cv. Gigante, plot size should be eight plants in the direction of the crop row.

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Section: Introductionmentioning

confidence: 99%

Size of plots for experiments with cactus pear cv. Gigante

Guimarães

Donato

Aspiazú

et al. 2019

Rev. bras. eng. agríc. ambient.

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“…Plot sizes with lower CVs are recommended for experimental purposes (8). The inverse behavior between plot size (BU) and coefficient of variation (table 3, page 60) has also been found in several similar studies (4,8,27,30).…”

Section: Tablementioning

confidence: 61%

“…Among them, the Modified Maximum Curvature Method (MMCM) (20) stands out. This method algebraically determines through a regression equation the optimal relationship between plot sizes and their respective coefficients of variation (27). With this model, one can minimize experimental error, optimize resources, and ensure maximum precision (8).…”

Section: Introductionmentioning

confidence: 99%

Optimal plot size for experimentation of common beans (Phaseolus vulgaris L.) in the northern region of Minas Gerais, Brazil

et al. 2021

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The objective was to evaluate the minimum size of experimental plots for the common bean (Phaseolus vulgaris L.) using the modified maximum curvature method. The experiment consisted of a uniformity trial with the cultivar BRSFC-402 sown at a spacing of 0.5 m between plant rows and 10 plants per meter within the row. 20 central rows measuring 20 m in length were considered for measurements, totaling 4,000 plants on an area of 200 m2. Final bean stand (FS), mean number of pods per plant (NPP), mean number of grain per pod (NGP), mean 100-grain weight (M100), and grain yield (kg ha-1) were evaluated. At evaluations, each row with 10 plants was considered a basic unit (0.5 m2), amounting to 400 basic units whose dimensions were combined into 14 plot shapes. The methods of relative information and modified maximum curvature were used to obtain the best shape and the most appropriate plot size, respectively, for experimental evaluation with common bean. Using these methods, and considering that the optimum plot should enable an efficient evaluation of all evaluated characteristics, the appropriate plot size was five UB (25 plants) in the format with five rows x one UB per row. Highlights Support for experimental evaluation of common beans under edaphoclimatic conditions in the northern region of Minas Gerais Experimental plots with five basic units ensure maximum precision for joint evaluation of the main phenotypic descriptors of common beans. The characteristics mass of 100 grains and productivity were associated with the smallest and the largest plot sizes, respectively.

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“…The experimental design was randomized complete blocks with four replications in the two experiments. The experimental plots consisted of a 3 m long row, with 10 tubers spaced 30 cm within rows, and 80 cm between rows (Pereira et al, 2017).…”

Section: Methodsmentioning

confidence: 99%

Nonparametric indexes in selecting advanced potato clones

et al. 2022

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This study aimed to test nonparametric selection indexes for selection of advanced potato clones and identification of those that are likely to become cultivars. The experiments were carried out in 2016 and 2017 crop seasons, from May to August, in the experimental field of Embrapa Vegetables. Seventeen advanced potato clones and two check cultivars (Agata and Asterix) were evaluated. A randomized complete block design with four replications was used. Experimental plots consisted of a 3 m row, with 10 tubers spaced 30 cm apart within and 80 cm between rows. At 115 days after planting, tubers of each plot were harvested, classified, counted and weighed. Analysis of variance was performed and the following nonparametric selection indexes were applied: weight-free index, sum of ranks index and distance of the genotype-ideotype index. The three selection indexes coincided with the choice of the best genotypes, with the first two being superior, because the weight-free index was more restrictive than the other indexes. Among the selected clones, F97-07-08 and F183-08-01 stood out for being coincident in the three indexes. In addition to these, clones F158-08-01 and F18-09-03 were also selected by the indexes of the genotype-ideotype and sum of ranks.

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Minimum plot size to evaluate potato tuber yield traits

Cited by 5 publications

References 14 publications

Size of plots for experiments with cactus pear cv. Gigante

Size of plots for experiments with cactus pear cv. Gigante

Optimal plot size for experimentation of common beans (Phaseolus vulgaris L.) in the northern region of Minas Gerais, Brazil

Nonparametric indexes in selecting advanced potato clones

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