Number Of Plagiotropic Branches Research Articles

Increased efficiency fertilizers in arabica coffee growth in Vale do Ribeira, SP

Controlled-release fertilizers have been increasingly used. This study aimed to evaluate and adapt new technologies applied via soil for sustainable coffee production, in order to generate information that contribute to the technical innovation of the crop for the Vale do Ribeira region. The experiment was set at UNESP, in Registro – SP. The experimental design was in randomized blocks. The experiment consisted of eight treatments with four replications, with plots of six plants. Four doses (200, 300, 400 and 500 kg ha-1) of a mixed fertilizer 20-05-20 were used, with controlled release in six months, intended for coffee trees in formation and production, compared to the dose of 500 kg ha-1 of the conventional mixed fertilizer 20-05-20, ammonium sulfate and calcium nitrate with boron, in addition to a control treatment, which did not receive NPK fertilization. The cultivar used was ‘Obatã IAC 1669’ in 3.0 x 0.6 m spacing. The following characteristics were evaluated: number of plagiotropic branches, number of nodes of plagiotropic branches, stem diameter, plant height and yield, in two harvest periods, besides the surface chemical characteristic of the soil. Increasing the dose of the slow-release fertilizer leads to greater plant growth; the coffee plant presents a highly responsive behavior to the increase in fertilizer doses in relation to nitrogen, and the use of the slow-release fertilizer Agroblen (20-05-20) 100% and ammonium sulfate + SS + KCl allows greater yield.

Initial growth of coffee plants associated with the use of kaolinite and adjuvant

Abiotic stresses cause significant damage to coffee plants’ development. Seeking solutions to mitigate them, studies about antiperspirant action have been intensified, for instance, kaolinite, which produces a film of particles with reflexive properties. In this context, this experiment aims to evaluate the effects of applying kaolinite doses in different colors with or without the addition of adjuvant on biometric variables during coffee plants’ initial growth. The randomized block design was used with three repetitions in an incomplete factorial scheme with an additional treatment, resulting in 11 treatments and 33 plots. The first factor comprised three kaolinite doses (20, 40, and 60 g); the second factor had two kaolinite colors (white and cream), and the third factor was the absence or presence of an adjuvant, also including an additional treatment (control). The plot consisted of four seedlings of the cultivar IPR 100. It was observed that the plant height (PH), number of plagiotropic branches (NPB), leaf area index (LAI), leaf dry matter (LDM), shoot dry matter (SHDM), root dry matter (RDM), and total dry matter (TDM) presented significant differences. Regarding PH, the dose of 40 g of cream kaolinite increased 7.07 cm more than the control. For LAI, the dose of 40 g with adjuvant had a 97.65 increase. For LDM and TDM, the dose of 40 g of white kaolinite with adjuvant presented respective increases of 5.2 and 12.78 g. The application of white kaolinite with adjuvant increased SHDM by 4.52 g. For RDM, the dose of 40 g of white kaolinite with adjuvant increased 6.51 g more than the control. The dose of 40 g of white kaolinite with adjuvant had a higher effect on the biometric variables. Key words: Antiperspirant; biomass; Coffea arabica L.; thermal stress; particles’ film.

Agronomic performance of Arabica coffee cultivars in the subtropical humid environment of Vale do Ribeira Paulista, Brazil

This research is related to the evaluation of vegetative growth parameters, initial yield and incidence of pests and diseases of twelve Arabica coffee cultivars submitted to the subtropical humidity environment of Vale do Ribeira Paulista, Brazil. The experiment was performed in the Experimental Campus of the UNESP in Registro, in a randomized block design, with three replications. Stem diameter, number of plagiotropic branches, plant height, number of internodes of plagiotropic branches, length of the first plagiotropic branch, incidence of brown eye spot and phoma leaf spot on coffee leaves, infestation by leaf miner and the yield of cultivars were evaluated. The results obtained allowed to conclude that: i) cultivars Catuaí Amarelo IAC 62, Catuaí Vermelho IAC 99 and Mundo Novo IAC 379-1 were higher than the others, with yield above the national average in 2020 and percentage of flat beans below 10%; ii) all cultivars evaluated showed a similar level of increment of variables that indicate plant growth and reproductive development; iii) the cultivation environment is favorable to infestation by the leaf miner and unfavorable to the incidence of rust; iv) The prevailing climatic conditions in the Vale do Ribeira Paulista is suitable for the production of Arabica coffee.

Initial vegetative and reproductive development of coffee cultivars in Vale do Ribeira Paulista

This research is related to the performance evaluation of twelve Coffea arabica cultivars in Vale do Ribeira Paulista, in order to generate consistent information for the technical recommendation for cultivation in the region. The experiment was set in February 2018, at the Experimental Campus of the São Paulo State University “Júlio de Mesquita Filho” - UNESP in Registro, SP, Brazil, in a spacing of 3.00 x 0.60 m, in a randomized block design with three replications. The following parameters were evaluated: stem diameter, number of plagiotropic branches, plant height, number of internodes of plagiotropic branches, length of the first plagiotropic branch, incidence of brown spots and phoma leaf spot, infestation by leaf miner and yield. The results showed a good adaptation of all cultivars to growing conditions in Vale do Ribeira Paulista, with higher and faster vegetative development of large coffee cultivars. The productive potential of cultivars in the first harvest was similar to the performance of the same cultivars in traditional growing regions, with emphasis on ‘Arara’ and ‘Catucaí Amarelo 24/137’, with about 55 bags ha-1 of processed coffee. There was no incidence of rust disease in the experimental evaluation period, unlike other biotic agents such as leaf miner, phoma-spot and brown eye spot.

High phosphorus supply enhances leaf gas exchange and growth of young Arabica coffee plants under water deficit

Abstract Drought is considered as the major environmental stress affecting coffee production, and high phosphorus (P) supply may alleviate the drought effects on crop metabolism. Here, we hypothesized that high P supply would mitigate the impacts of drought on Arabica coffee physiology, morphology, and biomass accumulation. Potted Arabica coffee plants were grown under two P levels: the recommended P fertilization (P), and twice the recommended fertilization (+P), and two water regimes: well-watered and water withholding for 32 days. Leaf, stem, and root P concentrations were increased under +P, with plants showing higher photosynthesis and growth than the ones receiving the recommended P dose. Higher plant growth under high P supply seems to upregulate leaf photosynthesis through the source–sink relationship. Under the water deficit, the reduction of leaf photosynthesis, stomatal conductance, transpiration, water use efficiency, carboxylation efficiency, chlorophyll content, number of plagiotropic branches, plant leaf area, and vegetative biomass production was similar comparing plants fertilized with the recommended P to those supplied with +P. However, Arabica coffee trees under high P supply and water deficit presented morphological and physiological traits similar to plants under well-watered and recommended P fertilization.

Soil application of silicon enhances initial growth and nitrogen use efficiency of Arabica coffee plants

Nitrogen (N) plays a fundamental role in the initial growth of the Arabica coffee plant whereas silicon (Si) is key in enhancing performance of the plant through promoting N-use efficiency (NUE). This study evaluated the effect of N rates (0, 40, 80, and 160 mg dm−3) and Si application methods (no Si, soil-applied soluble Si, and foliar-applied soluble Si) on growth, dry matter (DM) accumulation, N and Si uptake, and NUE of young Arabica coffee plants under greenhouse conditions. Nitrogen fertilization increased the height, number of plagiotropic branches, nodes in plagiotropic branches and leaves, leaf area, root length, DM production, and N and Si uptake of the coffee plant. Results revealed that both soil and foliar application of Si increased plant height. In the presence of the highest N rates, the soil application of Si increased the number of nodes in the plagiotropic branches, length and DM of roots, and Si uptake by coffee plants. In addition, soil application of Si increased NUE indexes, an indication that it can improve performance of the young coffee plants in the field.

Associations between morpho-agronomic characters in Conilon (Coffea canephora) 8142

The work consisted of the morpho agronomic evaluation of coffee crop under the influence of intercropping with different types of green manures. The experiment was carried out in the Southern Region of the State of Espírito Santo, Brazil. The experimental plot consisted of five plants per experimental unit, using the clone "Incaper 8142" Conilon Vitória, intercropping with different types of green manure plants, which were: guandu beans (Cajanus cajan), pig bean (Canavalia ensiformis), mucuna preta (Mucuna Pruriens) and Mexican margaridão (Tithonia diversifolia) in addition to a control treatment without green manure. The planting consisted of rows adjacent and located in the “upper interline” meaning is not clear of the coffee crop. The morpho agronomic characteristics evaluated were: plant height, orthotropic branch diameter, plagiotropic branch diameter, number of leaves, number of nodes, number of orthotropic branches, number of plagiotropic branches and productive nodes e productivity green coffee kg/ha, besides the main dependent: The characteristics of greatest direct contribution were number of nodes and number of productive nodes. The species of green fertilizer Mexican Margaridão (Tithonia diversifolia) provided a negative effect on the main variables related to production, and is not recommended for interplanting with robusta coffee.

Managing the number of orthotropic stems in Coffea arabica as strategy for cultivation at low-altitude regions

The objective of this study was to better understand the implications of the management of the number of orthotropic stems in Arabica coffee for its cultivation in low-altitude regions (< 500 m), characterizing its effects over the canopy architecture, production and allocation of biomass, photosynthesis and crop yield, as possible strategy for mitigating the stresses of cultivation at low-altitude regions. The experiment was conducted in a region with 124 m of elevation above sea level, studying four treatments with different numbers of orthotropic stems per plant such as one, two, three and four stems. After planting, during the stage of sprout budding, a number of sprouts were established in accordance to the treatments. The experimental design was a randomized block design, with eight repetitions. Parameters of gas exchange, chlorophyll contents, canopy architecture, production and allocation of biomass, and crop yield were evaluated to characterize the plant development. Overall, increasing the number of orthotropic stems per plant promoted leaf density, number of plagiotropic branches per plant, available leaf area per fruit mass, photosynthetic rate, crop yield, proportion of large grains and, possibly, the de-acceleration of the stem aging rate, mainly for the management with four orthotropic stems. It is concluded that the management of the number of orthotropic stems has potential use as a mitigator for the cultivation of Arabica coffee in low-altitude regions, being able to promote higher canopy density and, possibly, enhance microclimate conditions at the canopy level.

Vegetative and reproductive performance of species of the genus Passiflora

As passion fruit gains market share, it becomes important to evaluate the agronomic and phenological traits of cultivated and wild genotypes for genetic improvement and understand the influence of time of cultivation on plant behavior. This study aimed to investigate agronomic and phenological parameters of Passiflora suberosa, P. alata, P. maliformis, P. quadrangularis, P. foetida, P. mucronata, P. cincinnata and hybrids BRS Rubi do Cerrado, BRS Gigante Amarelo, and BRS Pérola do Cerrado. Key traits for genetic improvement were also assessed. Two experiments were carried out for 12 months, the first starting in December 2015 and the second in May 2016. Plots were organized in a randomized block design, and analyses were performed monthly. The following vegetative characteristics were evaluated: length and diameter of orthotropic and plagiotropic branches, internode length, leaf length and width of orthotropic and plagiotropic branches, and number of plagiotropic branches. Flowering and fruiting were dichotomized as presence or absence. Ten microsatellite markers were used to estimate genetic diversity. The wild species P. suberosa differed markedly from cultivated genotypes and had the lowest values for all vegetative parameters. The hybrid BRS Gigante Amarelo differed from other plants in orthotropic branch diameter. In Experiment II, plants differed in plagiotropic branch diameter and leaf length of plagiotropic branches. Most plants had similar cumulative growth curves as well as flowering and fruiting patterns. Clustering of genotypes based on microsatellite data revealed similarities in growth parameters, flowering time, and fruiting time. Some genotypes showed similar phenological patterns and are potential candidates for developing novel hybrids, and some wild species may find application as resistant and tolerant rootstocks.

Influence of Meloidogyne incognita race 1 on the development of clones of Coffea canephora, variety “Jequitibá Incaper 8122”

ABSTRACT: Root-knot nematode is one of the most important phytosanitary problems for Conilon coffee, as it reduces productivity and is difficult to handle. We aimed at studying the infectivity and damage caused by M. incognita race 1 in the “Jequitibá Incaper 8122” intermediate maturity coffee variety. The experiment was conducted in a greenhouse, in completely randomized design, with five replicates. The clones composing the variety “Jequitibá Incaper 8122” were inoculated with 2,000 eggs + second-stage juveniles of M. incognita race 1. Uninoculated plants were the control. Evaluations were performed 180 days after inoculation, considering the plant height (H), stem diameter (SD), number of leaves (NOL), leaf area (LA), number of plagiotropic branches (NPB), number of nodes (NN), chlorophyll content (CHLO), shoot dry matter (SDM), root fresh matter (RFM), final population (FNP), and reproduction factor (NRF). The nematode reduced NOL in clones 208 and 209, NRF in clones 201, 203, 207 and 208, NN in clones 203, 207, 208 and 209, CHLO in clones 201, 204, 206, 207 and 209, SDM in clones 201, 203, 204 and 205 and RFM in clones 205 and 207. M. incognita race 1 FNP and NRF were larger in clones 208, 201, 207 and 203. Clone 202 had FNP and NRF equal to zero, being immune to the nematode. Clone 206 presented the lowest NRF value among clones parasitized by M. incognita.

Effects of mycorrhizal association and phosphate fertilization on the initial growth of coffee plants

ABSTRACT In the establishment of coffee crops, phosphate fertilization is one of the most important soil fertility managements. Aiming to minimize losses, among the options in use are fertilizers with a slow release of nutrients, combined with the inoculation of arbuscular mycorrhizal fungi (AMF). This study aimed to evaluate the initial growth of coffee plants inoculated with AMF and submitted to different types of phosphate fertilizers. The experiment was conducted in a greenhouse, using a complete randomized block design, in a 2 x 4 factorial scheme, with four replications. The first factor referred to the presence or absence of AMF (Rhizophagus clarus) and the second one to phosphate [monoammonium phosphate (MAP)], pelletized organomineral and grainy organomineral fertilizers, as well as a control (without fertilization). The plant height, leaf chlorophyll content, number of plagiotropic branches, leaf area, shoot and root dry matter mass, percentage of root colonization and leaf phosphorus were evaluated. The inoculation with AMF, associated with the pelletized organomineral fertilizer, provided a higher growth for the shoot and root system and higher phosphorus contents, in relation to the other treatments, and it can be an alternative to the implantation or renewal of coffee crops.

ARABICA COFFEE CULTIVARS IN DIFFERENT WATER REGIMES IN THE CENTRAL CERRADO REGION

Phenotypic characterization of coffee cultivars under an irrigation system, as well as adaptability to controlled water stress, aiming at flowering uniformity, high yield and grain quality, plays an important role in coffee production in the cerrado areas. A field trial was carried out aiming to evaluate the agronomic performance of arabica coffee cultivars under different water regimes, using center pivot irrigation: irrigation throughout the year (WR1); suspended at the end of June for 40 days until leaf water potential reached -1.5 MPa (WR2); suspended at the end of June for 70 days until leaf water potential reached -2.3 MPa (WR3); suspended at the end of June for 100 days until leaf water potential reached -3.4 MPa (WR4); and a non-irrigated regime (WR5). The following traits were analyzed: plant height, stem diameter, canopy projection, number of plagiotropic branches, coffee grain yield, percentage of fruit in the cherry stage, and sieve retention percentages. Higher yield, plant growth, and percentage of fruit in the cherry stage are observed in the water regime with seventy days of controlled water stress (WR3). The Obatã IAC 1669-20 cultivar exhibits high yield and plant growth values in an irrigated system, and Catuaí Amarelo IAC 86 stands out in the non-irrigated system. For these genotypes, the coffee grain yield is most highly correlated with number of reproductive branches.

Path Analysis of Vegetative Characteristics in Conilon Coffee Production Consortiated with Green Fertilizers in Tropical Climate

The objective of this study was to evaluate the relationship between morphoagronomic characters and coffee productivity and their direct and indirect effects under the influence of different types of green fertilizers. The experiment was carried out in the field followed by the sampling method in a pre-established coffee plantation, installed in soil with a slope of 11% in the Southern Region of the State of Espírito Santo. The intercropping of coffee with green fertilizers studied were pigeon pea, jack bean, velvet bean, and wild Mexican sunflower, as well as a control treatment without green fertilizers. The experimental unit consisted of a coffee plant, clonal variety "Incaper 8142" Conilon Vitoria, with a spacing of 2.30 x 2.60 meters, with a crop age of seven years, using the border of at least one coffee plant between experimental units. Eight morphoagronomic characteristics were measured, having as main dependent variable the productivity (in kg per plant) obtained in the harvest of 2015, and as primary explanatory characteristics: plant height, orthotropic branch diameter, plagiotropic branch diameter, number of leaves, number of nodes, number of orthotropic branches, number of plagiotropic branches and number of productive nodes. To increase productivity, coffee plants with the highest number of orthotropic branches and number of plagiotropic branches should be selected. The characteristics of greater direct contribution were a number of nodes and the number of productive nodes.

Growth Response of Four Conilon Coffee Varieties (Coffea canephora Pierre ex A. Froehner) to Different Shading Levels

In order to select a conilon coffee (Coffea canephora Pierre ex A. Froehner) adapted to shade, four varieties (C153, JM2, LB1 and GG) were submitted to four shade levels (0, 30, 50 and 70) with evaluation of plant height, stem diameter, collar diameter, number of plagiotropic branches, number of fruits, root colonization by arbuscular mycorrhizal fungi and leaf anatomy. The experiment was carried out on a completely randomized design, in a 4 × 4 factorial scheme with ten replicates. We used organic compost based on cocoa shells for plant nutrition and cow urine for phytopathogenic fungi control. There was interaction between variety and shade factors for most of coffee characteristics analyzed. In general all coffee characteristics evaluated mainly fruit number and length of fruiting branches, significantly increased with increasing shade. Coffee varieties tested respond differently to the increasing of shade levels and leaf anatomy demonstrated the reduction of mesophyll thickness as the shading increased. The effect of shade levels on fruit yield fit to a positive linear regression for all four coffee varieties tested but the mycorrhizal colonization no presented differences among coffee varieties and shade levels. The varieties C153 and GG presented highlighted anatomical, growth and productive characteristics and can be indicated for shading cultivation, for example on agroforestry systems.

CONTRIBUTION OFAGRONOMIC TRAITS TO THE YIELD OF Coffea canephora PIERRE EX A. FROEHNER HULLED COFFEE

The evaluation of morphological characters related to the hulled coffee yield subsidizes the selection of <em>Coffea canephora</em> plants that combine a set of favorable traits. The aim of this study was to evaluate the direct and indirect effects of agronomic traits on the production of hulled coffee to subside the plant selection. To this, nine morphological descriptors were evaluated of 130 clones of the botanical varieties Conilon and Robusta over two crop years in the experimental field of Embrapa, in the municipality of Ouro Preto do Oeste, state of Rondônia (RO). To quantify the genetic variability the path analysis and the Scott Knott cluster test were used. The effect of genotype x year interaction was significant for eight of the nine characteristics analyzed. The genotypes were clustered in three to five classes, subsidizing the establishment of a scale to evaluate the variability of this genetic resource. Pathway analysis indicated that the number of plagiotropic branches and the number of rosettes per productive branch were the traits that exhibited the greatest direct effect on hulled coffee yield. These results show that it is possible to select plants with complementarity traits which favor a higher production of hulled coffee.

Agronomic performance and adaptability of arabic coffee resistant. To leaf rust in the central brasilian savanna

Breeding programs and later indication of rust resistant cultivars for different environments and crops systems, in the concept of diseases integrated control, reach out for productivity raising and reduced production costs. The aim of this work was to evaluate the agronomic performance and adaptability of new <em> Coffea arabica </em> cultivars and progenies resistant to leaf rust in Central Brazilian Savanna. The experiment has been conducted since 2008 in an experimental area of Embrapa Hortaliças. Twenty three resistant cultivars, four progenies and three susceptible cultivars as controls, were assessed in a complete randomized block design with four replicates. The following traits were analyzed: plant height, stem diameter, canopy projection, number of plagiotropic branches, yield, grains percentage retained in sieves above 17, grain ripening and diseases resistance. Catucaí 2SL, Sacramento and Araponga stood out in vegetative growth. The highest yields are observed for IPR 103, Obatã 1669-20, Palma II, Sabiá 398 and Acauã, with values higher than 60 sacks per hectare. Among all these cultivars is observed high resistance to rust leaf and greater susceptibility to brown eye spot in the cultivar Acauã, for the place and period of evaluation.

Crescimento inicial de cultivares de cafeeiro com diferentes doses de nitrogênio, fósforo e potássio

<p>A nutrição mineral do cafeeiro é de vital importância para a produtividade do mesmo e diversos locais que, anteriormente, eram considerados inaptos ao cultivo da cultura, hoje em dia, apresentam lavouras altamente produtivas, onde a correção da fertilidade do solo, ao longo do tempo, aliada com uma nutrição mineral adequada, são um dos principais pilares para esse sucesso. Observa-se que diferentes cultivares de diversas espécies exigem níveis de nutrição diferenciados, para expressarem seu máximo potencial produtivo sob determinadas condições de cultivo. Objetivou-se, neste trabalho, avaliar quatro novas cultivares de cafeeiro quanto ao seu crescimento inicial, sob diferentes doses de nitrogênio, fósforo e potássio. O experimento foi instalado na Fazenda Experimental da EPAMIG, em São Sebastião do Paraíso – MG, em fevereiro de 2012. Foram utilizados quatro cultivares de cafeeiro que foram submetidos a doze tratamentos (esquema fatorial, sendo quatro cultivares, três nutrientes e quatro doses), contendo três repetições, sob delineamento em blocos casualizados. Foi feita uma análise conjunta dos dados. As características avaliadas foram: altura, diâmetro do colo, crescimento do primeiro ramo plagiotrópico, número de ramos plagiotrópicos, índice de clorofila e foram feitas análises de solo e foliares. Concluiu-se que nas condições químicas iniciais do solo utilizado no experimento podem-se reduzir em até 50% as adubações com N, P e K, tanto em adubação de cobertura como para adubação de primeiro ano, em lavouras cafeeiras plantadas com as cultivares Pau Brasil MG1, Paraíso MG H419-1 e Topázio MG 1190.</p>

Adaptability, stability, and genetic divergence of conilon coffee in Alto Suaçuí, Minas Gerais, Brazil

The objective of this study was to describe the genetic parameters, adaptability, and stability of clones from the Coffea canephora variety ?Vitoria Incaper 8142?, and the genetic divergence between them. Following 12 and 24 months of plant growth, several traits were evaluated, including stem diameter, plant height, canopy diameter, number of plagiotropic branches, and number of nodes per plagiotropic branch. The agronomic performance of four crops was determined using measurements of productivity, yield, percentage of floating grains, and grade of the beans. Variability was observed between the clones for the majority of the traits measured. The clones V7, V10, V12, and V13 were the most stable and displayed the highest degree of adaptation for the studied traits, and thus these clones will be used to establish a base population suited to the growing conditions in Alto Suacui, Minas Gerais, Brazil. Additionally, the genetic dissimilarity identified between clones allowed suitable clone combinations to be proposed for use in future crosses.

Water-retaining polymer and seedling type when planting irrigated coffee

The aim of this work was to evaluate the use of a water-retaining polymer on the initial growth of coffee plants for different levels of irrigation and types of seedling. The experiment was set up in pots with a clayey soil, in a greenhouse of the Sector for Coffee Production of the Federal University of Lavras, Brazil. The experiment was arranged in a randomised block design into sub-lots with three replications, giving a total of 48 experimental units. Four levels of irrigation (25%, 50%, 75% and 100% of the available water) were randomly assigned to the lots; the type of seedling (grown in bags or tubes) were randomly assigned to the sub-lots, and the use or not of the water-retaining polymer randomly assigned to the sub-sub-lots. In the treatments with water-retaining polymer, a dilution of 1.5 Kg of polymer to 400 litres of water was used at a dose of 1.5 litres of solution per plant. The following were evaluated at intervals of 60 days during the experiment (360 days from planting): stem diameter, plant height, leaf area, number of leaves and number of plagiotropic branches on the coffee plants. Hydrated water-retaining polymer favoured the growth of coffee plants under an irrigated system. Irrigation resulted in greater plant growth, with the seedlings grown in bags showing more growth than those grown in tubes.

Selection of coffee progenies for resistance to nematode Meloidogyne paranaensis in infested area

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 Active Germplasm Bank of Minas Gerais, and evaluated in regard to stem diameter, number of plagiotropic branches, reaction to the nematode, and yield per plant. There was genetic variability among the genotypes studied for all the traits evaluated, and among the populations studied for yield and reaction to the nematode, indicating possibilities for obtaining genetic gains through selection in this population. There was high rate of genotypic association between all the traits studied. Coffee plants of Timor Hybrid UFV408-01 population, and F3 progenies derived from crossing Catuaí Vermelho and Amphillo MR 2161 were the most promising in the area infested by M. paranaensis.