Experimental Plots Estimates
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. Plot size for evaluation of Arabica coffee yield
ABSTRACT. In most cases, in genetic breeding of Arabica coffee, plot size is defined in an empirical manner. It is often based only on the experience of the breeders and the availability of resources, potentially leading to a reduction in precision. Therefore, the aim of this study was to estimate the size of the experimental plot for evaluation of coffee yi
Acta Sci., Agron.. Publicado em: 23/09/2019
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2. Optimum plot size of planting and bio-agroeconomic revenues from arugula-carrot intercropping systems in a semi-arid region
Abstract The production of vegetable crops has been characterized as a highly intensive activity in the use of soil, water, inputs and labor in semi-arid regions, being practiced mostly by small family farmers as a way of subsistence, or in the small-scale commercialization of surplus production. Among the agricultural practices that have been successfully u
An. Acad. Bras. Ciênc.. Publicado em: 18/10/2018
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3. Avaliação de técnicas geoestatísticas no inventário de povoamentos de Tectona grandis L.f. / Evaluation of geostatistics in inventory of Tectona grandis L.f. stands
The general objective of this work was to evaluate if estimates of wood volume obtained from geostatistics techniques are more accurate than those obtained from classical statistical techniques.The study was conducted in stands of Tectona grandis L.f. with the dendometric volume trait measured in 101 plots laid along a sampling spacing with UTM coordinates,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/06/2011
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4. Assessment of indicators and collection methodology to estimate nutrient digestibility in buffaloes
Dry fecal matter production was estimated from neutral detergent indicators on indigestible fiber, indigestible acid detergent fiber, indigestible dry matter, incubated for 144 hours and 288 hours, as well as chromium oxide (Cr2O3) and enriched and purified isolated lignin (LIPE®) in two sampling schemes (3 and 5 days) on buffaloes. Sample consisted of five
Revista Brasileira de Zootecnia. Publicado em: 2011-09
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5. Incomplete Steiner Triple Systems over balanced square lattices to diallel analysis / Sistemas triplos de Steiner incompletos versus Látices Quadrados Balanceados para a análise dialélica
The aim of this work was to compare a fraction of a 15 treatments Steiner Triple Systems (STS) to a 4x4 balanced square lattice design (LQB). We simulate experiments with 15 or 16 treatments. To the former, 5 superblocks of the STS was augmented of 1 treatment each. To the LQB one treatment was repeated if only 15 was in the experiment. To simulate treatment
Publicado em: 2009
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6. Efeito da competição dentro de parcelas, da interação genótipos x ambientes e influência de estratégias de seleção no melhoramento genético de eucalipto / Effect of competition within plots, of the genotype x environment interaction and influence of selection strategies in genetic breeding of Eucalypt
The aim was to determine the genetic parameters of progeny tests in Eucalyptus grandis Hill Maiden with 3 years old under competicional effect, as well as to study the genotype x environment interaction and its impact on strategies for direct and indirect selection and analyze different selection strategies like selection among and within, mass, stratified m
Publicado em: 2009
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7. Amostragem aleatória de ramos como técnica para quantificar a produção de frutos Caryocar brasiliense camp. (caryocaraceae)
The pequi is a species typical of the Cerrado biome, which fruit is an important non-timber forest products - NTFP. However, the extraction of the fruit is done, in general, without management plans or precise information on production. This study was conducted in an area of cerrado sensu stricto, located in the Experimental Ecological Reserve of the Univers
Publicado em: 2009
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8. VARIABILIDADE DA FITOMASSA DE FRUTOS DE ABOBRINHA ITALIANA E DE TOMATE E O PLANEJAMENTO EXPERIMENTAL / FITOMASS VARIABILITY OF FRUITS OF ZUCCHINI AND TOMATO AND THE EXPERIMENTAL PLANNING
To verify the variability interference of the estimates of the values used to determinate the plot size with simulations of different numbers of plants per plot and groupings of crops, a five-experiment work was carried out. One in the winter/spring of 2004, other in the summer/autumn of 2005 for the zucchini and three experiments with tomato in the winter/s
Publicado em: 2008
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9. Avaliação da eficiência do teste precoce no melhoramento genético de soja / Evaluation of early generation testing effectiveness in soybean breeding
Early generation testing in plant breeding consists of selecting progenies in early generations of selfing such as in F2 or F3, in order to save time and resources. The objective of this work was to assess the early generation testing effectiveness in soybean breeding programs. The base population consisted of a two way cross between inbred lines 14 and 38,
Publicado em: 2008
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10. Algoritmo regional de monitoramento da taxa de fixação de carbono pelas florestas tropicais da América do Sul / Regional algorithm for monitoring the carbon assimilation by tropical forests of the South America
The most likely scenario for the next decades presents strong modifications in the global environment, including increase of the atmospheric concentration of CO2 and other trace gases, climate change and intensification of the impacts caused by the man s action. These changes may cause important modifications in the composition, structure and distribution of
Publicado em: 2008
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11. Validação do modelo WEPP na predição de erosão hídrica para condição edafoclimática da região de Viçosa-MG / WEPP model validation in the prediction of water erosion for edaphic climatic conditions in the region of Viçosa-MG
The sensitivity analysis of the WEPP model demonstrated that for the Brazilian edaphic climatic conditions the most critical parameters from the soil are: the erodibility interril (Ki), the erodibility in rill (Kr), the critical shear strength (τc) and the effective hydraulic conductivity (Ke). Through is of fundamental importance the evaluation of the
Publicado em: 2007
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12. Estimativas do tamanho e forma de parcelas experimentais para avaliação de descritores fenotípicos em bananeira (Musa spp.) / Estimates of the size and shape of experimental plots for the evaluation of phenotipics descriptors in banana (Musa spp.)
O objetivo deste trabalho foi estimar o tamanho e a forma adequada de parcelas experimentais para avaliação de descritores fenotípicos relevantes para caracterização de genótipos de bananeira. O experimento constituiu-se de um ensaio de uniformidade, conduzido em Guanambi, BA, com a cultivar Tropical (YB42-21), híbrido tetraplóide AAAB, plantado no e
Publicado em: 2007