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Navegação Periódicos por título
Itens para a visualização no momento 2301-2320 of 2716
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(Instituto Agronômico (IAC), 2019)Selection of hybrid coffee plants coming from crosses between divergent populations is particularly relevant for the success of breeding programs. This study aimed to outline the best selection strategy in a hybrid population ... -
(Instituto de Tecnologia do Paraná - Tecpar, 2007-07)The aim of this study was to identify plants of the IAPAR-59 and Tupi IAC 1669-33 coffee cultivars with less defeated resistance genes by the rust races present at IAPAR (Londrina, Paraná State, Brazil) using test-crosses. ...
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(Sociedade Brasileira de Plantas Medicinais, 2013-08-23)Aiming to contribute to the development of alternative control methods of the coffee leaf miner, Leucoptera coffeella (Guérin-Mèneville & Perrottet, 1842) (Lepidoptera: Lyonetiidae), a search for plants able to produce ...
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(Crop Breeding and Applied Biotechnology, 2014-06)The aim of this study was to select high-yielding coffee progenies with resistance to coffee leaf rust for the State of Paraná (Brazil). Field experiments in a randomized block design were carried out in Itaguajé and ...
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(Universidade Federal de Santa Maria, 2015-07)Due to high temperatures, practically all coffee farms in the state of Rondonia are of the C. canephora species. Thus, importing arabica coffee from other states becomes necessary for composition of blends, as well as for ...
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(Editora UFLA, 2018-07)This study aimed to evaluate different structures of variance-covariance matrices in modeling of productive performance of coffee genotypes over the years, and select hybrids of Coffea arabica using mixed models. A mixed ...
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(Universidade Federal de Santa Maria, 2018-04)The objective of this research was to quantify the genetic divergence of potential Coffea canephora parents, with the goal of developing progenies that associate the best traits of the Conilon and Robusta botanical varieties ...
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(Crop Breeding and Applied Biotechnology, 2014-06)The purpose of this study was to select Coffea arabica progenies for resistance to M. paranaensis in an infested coffee growing area using Henderson’s mixed model methodology. Forty-one genotypes were selected at the Coffee ...
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(Editora UFLA, 2019-01)Rust is the main disease of coffee. Recently, cercospora leaf spot has grown in importance, intensifying defoliation and decreasing grain yield in Coffea arabica. The Big Coffee VL is a variety of C. arabica, with large ...
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(Editora UFLA, 2019-04)The objective of this study was to select coffee progenies with better assessment that can result in coffee rust resistant cultivars and better agronomic characteristics than the traditional ones. The essay was performed ...
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(Universidade Federal de Lavras, 2022-06-09)Recently, the cultivation of Coffea canephora species has expanded as a consequence of climate change effects and emerging markets that use this cof-fee as raw material. To meet such demands of production, it is necessary ...
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(Crop Breeding and Applied Biotechnology, 2019)In the northern Minas region, the dry-warm climate predisposes coffee plants to the occurrence of leaf miners, mites, cercosporiosis, and leaf scald. Aiming for the development of a cultivar adapted to these conditions, ...
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(Editora UFLA, 2019-07)The dependence on chemical fertilizers for the future of agriculture will result in additional soil health losses, possibility of water contamination and continued currency avoidance due to the increasing dependence on ...
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(Editora UFLA, 2006-04)An evaluation on the effect of agrochemicals to the predatory mites Euseius alatus DeLeon, 1966, Euseius citrifolius Denmark & Muma, 1970, Amblyseius herbicolus (Chant, 1959) and Iphiseiodes zuluagai Denmark & Muma, 1972 ...
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(Editora UFLA, 2019-07)Weed control is fundamental in coffee cultivation due to their big interference, competing with the crop for water, light and nutrients. Among the control methods used, chemical control is highlighted, as a function of its ...
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(Editora UFLA, 2011-09)Among the predaceous mites, those of the Phytoseiidae family are the most important and studied. The phytophagous mites Brevipalpus phoenicis (Geijskes, 1939) (Tenuipalpidae) and Oligonychus ilicis (McGregor, 1917) ...
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(Universidade Federal Rural do Semi-Árido, 2016)Saflufenacil is absorbed by the plant leaves and roots, thus the residual permanence of this herbicide can cause losses to the crop plants. Therefore, the objective of this study was to evaluate the selectivity of the ...
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(Editora UFLA, 2019-10)The great interference of weeds in coffee plants, due to competition for water, light and nutrients, makes their control essential. Among these control methods, the chemical stands out, due to its high efficiency and low ...
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(Editora UFLA, 2015-10)Objetivou-se, selecionar clones superiores quanto às características agronômicas e ao teor de cafeína nos grãos de Coffea canephora, por meio de procedimentos biométricos, para compor uma população base adequada às condições ...
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(Sociedade Entomológica do Brasil, 2005-03-22)A broca-do-café, Hypothenemus hampei (Ferrari), é uma das mais importantes pragas do cafeeiro. Seu controle é realizado, na maioria das vezes, utilizando-se produtos químicos sintéticos que contaminam o meio ambiente, os ...
Itens para a visualização no momento 2301-2320 of 2716
