143 documents found, page 1 of 15
Repeatability of associations between analytical methods of adaptability, stabi...
Woyann,Leomar Guilherme; Milioli,Anderson Simionato; Bozi,Antonio Henrique; Dalló,Samuel Cristian; Matei,Gilvani; Storck,Lindolfo; Benin,GiovaniAbstract: The objective of this work was to evaluate the association between estimates of adaptability, stability, and productivity in soybean (Glycine max), and to estimate the repeatability coefficient of these associations between years. A total of 22 genotypes were evaluated in 27 environments in the 2012/2013 crop season and in 19 environments in 2013/2014. In the next crop seasons, 28 genotypes were evalu...
Methods of analysis and number of replicates for trials with large numbers of s...
Matei,Gilvani; Benin,Giovani; Storck,Lindolfo; Milioli,Anderson Simionato; Bozi,Antonio Henrique; Dalló,Samuel Cristian; Lucion,Ricardo AntonioABSTRACT: The aim of this study was to evaluate the experimental precision of different methods of statistical analysis for trials with large numbers of soybean genotypes, and their relationship with the number of replicates. Soybean yield data (nine trials; 324 genotypes; 46 cultivars; 278 lines; agricultural harvest of 2014/15) were used. Two of these trials were performed at the same location, side by side, ...
Statistical methods to study adaptability and stability of wheat genotypes
Bornhofen,Elesandro; Benin,Giovani; Storck,Lindolfo; Woyann,Leomar Guilherme; Duarte,Thiago; Stoco,Matheus Giovane; Marchioro,Sergio VolmirABSTRACT The sensitivity of wheat crop to environmental variations frequently results in significant genotype (G) x environment (E) interaction (GEI). We compared statistical methods to analyze adaptability and stability of wheat genotypes in value for cultivation and use (VCU) trials. We used yield performance data of 22 wheat genotypes evaluated in three locations (Guarapuava, Cascavel, and Abelardo Luz) in 2...
Correlação de caracteres de planta e tubérculo nas primeiras gerações de seleçã...
Bandinelli,Maurício G; Bisognin,Dilson A; Storck,Lindolfo; Gnocato,Francisco S; Kielse,Paula; Ascoli,ClaudineiRESUMO O objetivo deste trabalho foi avaliar o uso da correlação canônica para identificar caracteres de planta e tubérculo que possam ser utilizados para a seleção precoce de clones de batata. O estudo da análise de correlação canônica foi conduzido em duas gerações (plantular e de tubérculo), com nove famílias e um total de 358 clones. A geração plantular (G1) foi conduzida em casa de vegetação, no inverno de...
Environment-specific selection to identify high yielding wheat genotypes and re...
Benin,Giovani; Storck,Lindolfo; Marchioro,Volmir Sergio; Bornhofen,Elesandro; Woyann,Leomar Guilherme; Trevizan,Diego MacielABSTRACT Selection of disease resistant genotypes is the main goal of wheat (Triticum aestivum L.) breeding programs. However, because of the lack of genotypes resistant to all diseases and the strong influence of the environment on the level of resistance of the genotypes, the use of fungicides is necessary in the cultivation of wheat. The objective of this study was to compare the gain in yield and the select...
Tamanho de amostra para avaliar a densidade populacional de percevejos em lavou...
Antúnez,Claudia Carolina Cabral; Storck,Lindolfo; Guedes,Jerson Vanderlei Carús; Cargnelutti Filho,Alberto; Alvarez,Jimmy Walter RascheRESUMO: O objetivo deste trabalho foi estimar o tamanho de amostra para medir a densidade populacional de espécies de percevejos, variando métodos de coleta, altitude e cultivares de soja. Foram utilizadas 100 lavouras de soja, distribuídas em nove municípios da região central do Rio Grande do Sul, em três safras agrícolas (2010/2011, 2011/2012, 2012/2013). Em cada lavoura, foram demarcados 30 pontos distantes ...
Tamanho ótimo de parcela para avaliação da massa e diâmetro de cabeças de brócolis
Brum,Betania; Brandelero,Fernanda Daniela; Vargas,Thiago de Oliveira; Storck,Lindolfo; Zanini,Pedro Paulo GonçalvesRESUMO: O objetivo deste trabalho foi determinar o tamanho ótimo de parcela (Xo), por amostragem na área total e nas frações de áreas, a fim de avaliar a massa e o diâmetro de cabeças de brócolis. Em campo, foram demarcadas 27 filas do híbrido BRO 68(r). Cada planta foi considerada como sendo uma unidade experimental básica (UEB). Para fins de análise, cada fila foi considerada como sendo um ensaio em branco co...
Plant characters of broccoli determinants of head production
Brandelero,Fernanda Daniela; Brum,Betania; Storck,Lindolfo; Cardoso,Jessica; Kutz,Talita Slota; Vargas,Thiago de OliveiraABSTRACT: The increasing consumption of single-head broccoli is due to several factors, among them there are food production in minimally processing form and the existence of hybrids that adapt to various climates, in addition to the simple harvesting of this typical architecture.This study aimed to identify the most relevant plant characters of broccoli, represented by growth characters, which are determinant ...
Likelihood ratio test between two groups of castor oil plant traits
Brum,Betania; Lopes,Sidinei José; Ferreira,Daniel Furtado; Storck,Lindolfo; Cargnelutti Filho,AlbertoABSTRACT: The likelihood ratio test (LRT), to the independence between two sets of variables, allows to identify whether there is a dependency relationship between them. The aim of this study was to calculate the type I error and power of the LRT for determining independence between two sets of variables under multivariate normal distributions in scenarios consisting of combinations of 16 sample sizes; 40 combi...
Nitrogen use efficiency in modern wheat cultivars
Todeschini,Matheus Henrique; Milioli,Anderson Simionato; Trevizan,Diego Maciel; Bornhofen,Elesandro; Finatto,Taciane; Storck,Lindolfo; Benin,GiovaniABSTRACT The nitrogen use efficiency (NUE) is defined as the capacity of a given genotype in take advantage of the applied nitrogen (N) and transform it in biomass and grains. The objective of this study was to evaluate 12 wheat cultivars as to the NUE and its components. The experiment was conducted in a controlled environment, in a randomized block design with three replications. Twelve wheat cultivars were s...