Physiological Impacts of Chilling Temperature in the Susceptibility of Young Coffee Plants (Coffea Arabica L.) to Photoinhibition

1998 ◽  
pp. 2199-2203
Author(s):  
Jurandi G. Oliveira ◽  
Antônio C. N. Magalhães
Keyword(s):  
Coffea Arabica ◽  
Chilling Temperature ◽  
Coffee Plants ◽  
Coffea Arabica L

scholarly journals EFFECT OF IRRIGATION ON ROOT DEVELOPMENT OF COFFEE PLANTS

Irriga ◽  
2019 ◽  
Vol 24 (2) ◽  
pp. 378-391
Author(s):  
Marcelo Rossi Vicente ◽  
Everardo Chartuni Mantovani ◽  
André Luís Teixeira Fernandes ◽  
Júlio Cesar Lima Neves ◽  
Edmilson Marques Figueredo ◽  
...  
Keyword(s):  
Root System ◽  
Root Development ◽  
Coffea Arabica ◽  
Crop Yields ◽  
Root Length Density ◽  
Block Design ◽  
Minas Gerais ◽  
Root Weight ◽  
Coffee Plants ◽  
Coffea Arabica L

EFFECT OF IRRIGATION ON ROOT DEVELOPMENT OF COFFEE PLANTS     MARCELO ROSSI VICENTE1; EVERARDO CHARTUNI MANTOVANI2; ANDRÉ LUÍS TEIXEIRA FERNANDES3; JÚLIO CÉSAR LIMA NEVES4; EDMILSON MARQUES FIGUEREDO5 E FÁBIO TEIXEIRA DELAZARI6   1 Instituto Federal do Norte de Minas Gerais, Campus Salinas, Fazenda Varginha, Rodovia Salinas – Taiobeiras, Km 2, 39560-00, Salinas, Minas Gerais, Brasil, [email protected] 2 Departamento de Engenharia Agrícola e Ambiental, Universidade Federal de Viçosa, Campus Universitário, Viçosa, 36570.900, Minas Gerais, Brasil, [email protected] 3 Universidade de Uberaba, Av. Nenê Sabino, n° 1801, 38055-500, Uberaba, Minas Gerais, Brasil, [email protected] 4 Departamento de Solos, Universidade Federal de Viçosa, Campus Universitário, Viçosa, 36570-900, Minas Gerais, Brasil, [email protected] 5 Bahia Farm Show, Av. Ahylon Macedo, n° 919, 97810-035, Barreiras, Bahia, Brasil, [email protected] 6 Departamento de Fitotecnia, Universidade Federal de Viçosa, Campus Universitário, Viçosa, 36570-900, Minas Gerais, Brasil, [email protected]     1 ABSTRACT   Increasing the development and deepening of the root system in coffee crops ensures higher water and nutrient uptakes as a result of improved soil utilization, ultimately leading to greater crop yields and longevity. The aim of this study was to evaluate the effect of irrigation levels on the root system of drip-irrigated coffee plants in western Bahia State (BA), Brazil. The experiment was carried out on Café do Rio Branco farm, located in Barreiras - BA, using adult plants (approximately 3.5 years old) of coffee variety Catuaí Vermelho IAC 144. The experiment was set up as a randomized block design with three treatments corresponding to the irrigation depths of 75, 100 and 150% as determined using Irriplus software. After the fourth harvest, the coffee root system was assessed to determine root length density (RLD) and root weight density (RWD) in different sampled layers. A greater concentration of roots (RLD and RWD) was observed in the surface layer (0-20 cm) and under the lateral line (at 30 and 70 cm from the orthotropic branch). The irrigation depth of 75% provided the highest concentration of roots (RLD and RWD) in the 0-10 cm layer.   Keywords: Drip irrigation, Coffea arabica L, root system.     VICENTE, M.R.; MANTOVANI, E.C.; FERNANDES, A.L.T.; NEVES, J.C.L.; FIGUEREDO, E.M.; DELAZARI, F.T EFEITO DA IRRIGAÇÃO NO DESENVOLVIMENTO RADICULAR DO CAFEEIRO     2 RESUMO   Um maior desenvolvimento e aprofundamento do sistema radicular garante ao cafezal um aumento da absorção de água e nutrientes devido a maior exploração do solo, com isto maior produtividade e longevidade da lavoura. O objetivo deste trabalho foi avaliar os efeitos de diferentes lâminas de irrigação sobre o sistema radicular do cafeeiro irrigado por gotejamento na região Oeste da Bahia. Realizou-se o trabalho na fazenda Café do Rio Branco, localizada em Barreiras - BA em cafeeiros adultos, aproximadamente 3,5 anos de idade, da variedade Catuaí Vermelho IAC 144. O experimento ocorreu no delineamento em blocos casualizados, composto de 3 tratamentos, correspondentes à 75, 100 e 150% da lâmina de irrigação determinada pelo software Irriplus. Após a quarta safra, procedeu-se às avaliações do sistema radicular do cafeeiro, onde foi determinada a densidade de comprimento radicular - DCR e a densidade radicular – DR em diferentes camadas amostradas. Observou-se maior concentração de raízes, DCR e DR, na camada superficial (0-20 cm) e sob a linha lateral (30 e 70 cm de distância do ramo ortotrópico). A lâmina de irrigação correspondente a 75% proporcionou maior concentração de raízes (DCR e DR) na camada de 0 a 10 cm.   Palavras - chaves: Irrigação localizada, Coffea arábica L, sistema radicular

scholarly journals Effect of leaf Water potential on cold tolerance of Coffea arabica L.

2002 ◽  
Vol 45 (4) ◽  
pp. 439-443 ◽  
Author(s):  
Lázara Pereira Campos Caramori ◽  
Paulo Henrique Caramori ◽  
João Manetti Filho
Keyword(s):  
Water Potential ◽  
Leaf Water Potential ◽  
Coffea Arabica ◽  
Experimental Period ◽  
Leaf Water ◽  
Regional Variability ◽  
Wide Range ◽  
Coffee Plants ◽  
Coffea Arabica L ◽  
Severe Leaf

Young coffee plants from cultivar Mundo Novo of Coffea arabica were grown without irrigation for 32 consecutive days, to evaluate the effect of leaf water potential on damage caused by low temperatures, under controlled conditions. A wide range of leaf water potentials were evaluated, from - 0.45MPa (wet soil) at the beginning of the experimental period, to - 4.8MPa (severe leaf wilting) at the end. Results showed that under moderate water stress, there was a higher frequency of undamaged plants and lower frequency of severely damaged plants. These results help explain part of the regional variability observed after a frost and stress the importance of new studies associating cold and drought tolerance in coffee.

scholarly journals Biodiversity and ecology of potential vectors (Insecta: Hemiptera: Auchenorryncha) of Xylella fastidiosa Wells et al. in coffee plants of Puerto Rico.

1969 ◽  
Vol 94 (1-2) ◽  
pp. 147-164
Author(s):  
Yobana Mariño-Cárdenas ◽  
Mildred Zapata ◽  
Brent V. Brodbeck ◽  
Stuart McKamey ◽  
Peter C. Andersen
Keyword(s):  
Puerto Rico ◽  
Central America ◽  
Coffea Arabica ◽  
Dominant Species ◽  
Xylella Fastidiosa ◽  
Predominant Species ◽  
Coffee Plants ◽  
Number Of Individuals ◽  
Primary Family ◽  
Coffea Arabica L

Xylella fastidiosa (Xf) is a xylem-limited bacterium that is the causal agent of coffee leaf scorch (CLS) in Central America. The purpose of this research was to survey potential vectors of Xf in plantings of coffee, Coffea arabica L., in Puerto Rico. These surveys were conducted from June to November 2006 on four farms, located in the municipalities of Yauco, Juana Díaz and Adjuntas. Insects were collected at each site at 15-day intervals. The 7,423 individuals collected belonged to five families and 12 species. Cicadellidae was the primary family in both number of species and number of individuals. Indexes of dominance, abundance, frequency and constancy showed Agallia pulchra, Apogonalia imitatrix, Caribovia coffeacola and Hortensia similis to be the predominant species. Indexes also showed significant differences among locations, with higher diversity and equitability on Yauco farms, and higher dominance in Adjuntas. Of the four dominant species, Apogonalia imitatrix, C. coffeacola and H. similis are all xylem fluid feeders, and thus may be potential vectors of Xf. Apogonalia imitatrix represents the first report of the species for Puerto Rico.

scholarly journals Evaluasi Kesesuaian Lahan pada Tanaman Kopi Arabika (Coffea arabica L.) Organik Menggunakan Sistem Informasi Geografis (SIG) di Kecamatan Pegasing Kabupaten Aceh Tengah

2019 ◽  
Vol 4 (2) ◽  
pp. 329-338
Author(s):  
Ghalib Auliansyah ◽  
Fachruddin Fachruddin ◽  
Yuswar Yunus
Keyword(s):  
Information Systems ◽  
Geographic Information Systems ◽  
Water Availability ◽  
Coffea Arabica ◽  
Land Suitability ◽  
Limiting Factor ◽  
Arabica Coffee ◽  
The People ◽  
Coffee Plants ◽  
Coffea Arabica L

Abstrak.  Komoditas kopi identik dengan kehidupan masyarakat Aceh Tengah, karena sebagian besar penduduk di wilayah dataran tinggi ini menggantungkan hidupnya dari komoditas kopi. Evaluasi kesesuaian lahan pada tanaman kopi Arabika organik sangat penting untuk mengoptimalkan produktivitas tanaman tersebut. Hasil penelitian menunjukkan kelas kesesuaian lahan aktual di Kecamatan Pegasing dengan analisis lahan seluas 7.800,69 ha adalah sangat sesuai (S1) seluas 2.851,28 ha (36,55%), cukup sesuai (S2) 3.616,56 ha (46,36%) dan tidak sesuai (N) seluas 1.332,85 ha (18,72%) dengan faktor pembatas terberat ketersediaan air (wa) pada semua SPL, resistensi hara (nr) pada SPL 1, 3 dan 4 serta kemiringan lereng pada semua SPL.Evaluation of Land Suitability on Organic Arabica  Coffee Plants (Coffea arabica L.) Using Geographic Information Systems (GIS) in Pegasing District Middle of Aceh RegencyAbstract. Coffee commodities are identical to the life of the people of Middle Aceh, because most of the population in this highland region depends on the commodity of coffee. Evaluation of land suitability in organic Arabica coffee plants is very important to optimize the productivity of these crops. The results showed the actual land suitability class in Pegasing District with an analysis of an area of 7,800.69 ha was very suitable (S1) covering an area of 2.851,28 ha (36,55%), quite suitable (S2) 3.616,56 ha (46,36%) and incompatible (N) covering an area of 1,332.85 ha (18.72%) with the heaviest limiting factor of water availability (wa) in all SPL, nutrient resistance (nr) in SPL 1, 3 and 4 and slope slope in all SPL.

scholarly journals Soil enzymatic activity under coffee cultivation with different water regimes associated to liming and intercropped brachiaria

2022 ◽  
Vol 52 (3) ◽  
Author(s):  
Raquel Nogueira Rodrigues ◽  
Fábio Bueno dos Reis Junior ◽  
André Alves de Castro Lopes ◽  
Omar Cruz Rocha ◽  
Antônio Fernando Guerra ◽  
...  
Keyword(s):  
Acid Phosphatase ◽  
Soil Enzymes ◽  
Coffea Arabica ◽  
Water Regimes ◽  
Soil Enzymatic Activity ◽  
Dry Seasons ◽  
Coffee Plants ◽  
Lime Application ◽  
Coffee Cultivation ◽  
Coffea Arabica L

ABSTRACT: This research evaluated the effects of coffee cultivation with two different water regimes associated or not with liming and the presence/absence of brachiaria as intercrop on the activities of the soil enzymes β-glucosidase, arylsulfatase and acid phosphatase. The study was carried out at the experimental farm of Embrapa Cerrados, using the cultivar IAC 144 (Coffea arabica L.), under a clayey dystrophic Cerrado Oxisol. Two water regimes (WR) were considered, WR1 with irrigation shifts throughout the year and WR3 with controlled water stress, for about 70 days, in the dry season. In each water regime, effects of lime application (with/without) and the presence/absence of brachiaria cultivated between the lines of coffee plants were evaluated. The activities of the enzymes β-glucosidase, arylsulfatase and acid phosphatase were evaluated during the rainy and dry seasons. Liming and intercropped brachiaria positively affected the activities of the three enzymes assessed in this study at varying degrees, depending on season and/or the WR. Our findings evidenced that intercropped brachiaria in coffee rows was the factor that most positively impacted soil enzymes activities.

scholarly journals YIELD OF Coffea arabica GRAFTED ONTO Coffea canephora IN SOILS INFESTED WITH NEMATODES IN MEXICO

2019 ◽  
Vol 14 (3) ◽  
pp. 308
Author(s):  
Francisco Javier López García ◽  
Juan Guillermo Cruz Castillo
Keyword(s):  
Costa Rica ◽  
Central Region ◽  
Coffea Arabica ◽  
Coffea Canephora ◽  
Fruit Production ◽  
Fruit Yield ◽  
Yield Reduction ◽  
Coffee Plants ◽  
Propagation Methods ◽  
Coffea Arabica L

The total of three consecutive years of fruit production was evaluated in six coffee cultivars (<em>Coffea arabica L</em>.) propagated by seed and grafted onto Robusta (<em>Coffea canephora</em> var. Robusta). The plantations were established at 640 m, 920 m, and 1340 m altitude in the central region of the Veracruz State, Mexico. The <em>coffea</em> plants were established in soils naturally infested with nematodes. Grafted plants had higher production than those propagated by seed. Fruit production was higher at 640 m and 920 m than at 1340 m for the two types of propagation. The cultivars Colombia Brote Café and Colombia Brote Verde had the highest fruit yield regardless of the propagation methods; in contrast, Pacamara, had the lowest. The grafted coffee plants that were planted at 1340 m had a yield reduction of 27% in comparison with those at 640 and 920 m. When the Costa Rica 95 variety was grafted, it achieved fruit yield similar to Colombia Brote Verde and Colombia Brote Café. Pacamara produced almost 28% more fruit when it was grafted onto Robusta.

scholarly journals Perdas causadas por Coccus viridis (Hemiptera: Coccidae) em mudas de Coffea arabica L.

2009 ◽  
Vol 2 (2) ◽  
pp. 49-53 ◽  
Author(s):  
Flávio Lemes Fernandes ◽  
Marcelo Coutinho Picanço ◽  
Maria Elisa Fernandes ◽  
Tarcísio Visintin Galdino ◽  
Adriano Cirino Tomaz
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Coffea Arabica ◽  
Dry Matter ◽  
Stem Leave ◽  
Coccus Viridis ◽  
Coffee Plants ◽  
Nutrient Solutions ◽  
Coffea Arabica L

Coccus viridis (Green) danifica plantas jovens e adultas de Coffea arabica Linnaeu. No entanto, nada se sabe sobre a magnitude dos danos causados por esta praga. Assim, este trabalho teve por objetivo estudar as relações entre o ataque de C. viridis e as perdas causadas por este inseto a C. arabica. Este trabalho foi conduzido em casa de vegetação na Universidade Federal de Viçosa. Foram utilizadas sementes da linhagem IAC 15 da variedade “Catuaí vermelho” de café (C. arabica). Para a confecção dos tratamentos esta praga foi criada em casa de vegetação separada do experimento. Os tratamentos foram: plantas infestadas e não infestadas por adultos e ninfas da cochonilha verde. As plantas foram nutridas com solução nutritiva. Durante 110 dias foram avaliados: números de adultos e de ninfas de primeiro, segundo e terceiro ínstares, área foliar, diâmetro do caule, altura das plantas em todas repetições. No final do experimento avaliou-se o peso das raízes, caule, folhas e total. Os pesos das raízes, matéria seca total, área foliar e diâmetro do caule de plantas não atacadas por C. viridis superaram em 1,31; 1,41; 1,50 e 8,93 vezes, respectivamente o peso de plantas atacadas. As variáveis selecionadas foram: diâmetro do caule (cm), área foliar (cm²), peso de raízes (g), ninfas, adultos e total das cochonilhas. Concluindo que a planta de C. arabica é afetada de forma diferente entre seus órgãos e que a ninfa de terceiro ínstar e adultos são as fases que mais causam danos a C. arabica. Losses Caused by Coccus viridis (Green) (Hemiptera: Coccidae) on Seedlings of Coffea arabica L. Abstract. Coccus viridis (Green) cause losses on seedling and old plants of Coffea arabica (Green). However, nothing is known about of the damages caused by this pest. Thus, the objective of this work was to evaluate the relations between atack of C. viridis and the losses caused by this insect. on C. arabica. This work was conduced in greenhouse at Federal University of Viçosa. Seed coffee plants line IAC 15, variety “Catuaí vermelho” (C. arabica) were used. The insects were reared into greenhouse and separated of the experiment. The treatments were: infested plants and no infested by adults and nymphs of the green scale. The plants were nourished with compound nutrient solutions. For 110 days evaluated: numbers of adults and nymphs of instar first, second and third, leaf area, diameter of stem and plant height in all repetition. At the end of the experiment were evaluated weights of root, stem, leave and total. The weight of root, total dry matter, leaf area and diameter of the stem at plants no attacked by C. viridis were 1.31, 1.41, 1.50 and 8.93 times more than weight attacked plants, respectively. The main variables were: diameter of the stem (cm), leaf area (cm²), weights of root (g), nymphs, adults and all cochineals. Also, parts of the plant (C. arabica) were damaged by nymphs (third) and adults of C. viridis.

scholarly journals Slow-release stabilized nitrogen fertilizers on initial development and nutrition of coffee plants (Coffea arabica L.)

2016 ◽  
Vol 10 (04) ◽  
pp. 497-502
Author(s):  
Vinícius José Ribeiro ◽  
◽  
Felipe Vaz Andrade ◽  
Renato Ribeiro Passos ◽  
Eduardo Sá Mendonça ◽  
...  
Keyword(s):  
Coffea Arabica ◽  
Slow Release ◽  
Nitrogen Fertilizers ◽  
Initial Development ◽  
Coffee Plants ◽  
Coffea Arabica L

scholarly journals Mite fauna of a coffee agroecosystem (Coffea arabicaL.) in the municipality of Monte Alegre do Sul, São Paulo State, Brazil. Part I.

Acarologia ◽  
2019 ◽  
Vol 59 (4) ◽  
pp. 542-550
Author(s):  
Luiz Henrique Chorfi Berton ◽  
Jeferson Luiz de Carvalho Mineiro ◽  
Mário Eidi Sato ◽  
Joaquim Adelino de Azevedo Filho ◽  
Adalton Raga
Keyword(s):  
Coffea Arabica ◽  
Sao Paulo ◽  
Sample Period ◽  
Phytoseiid Mites ◽  
Paulo State ◽  
Incertae Sedis ◽  
Frequent Species ◽  
Coffee Plants ◽  
Amblyseius Herbicolus ◽  
Coffea Arabica L

This study aims to assess the mite fauna of coffee plants in the municipality of Monte Alegre do Sul, SP. The sample period was from April 2004 to February 2008. Each month, we sampled 480 leaves and 1,920 fruits from plants of the Coffea arabica L. cv. Mundo Novo. In total 16,062 adult individuals from 30 families representing 81 species of mite (and 1 incertae sedis). Among them, 95% were obtained from leaves, with the Mesostigmata contributing 23 species and 1,805 specimens. The phytoseiid mites were the most abundant, with 1,793 specimens. Seventeen families of Prostigmatid mites were recorded, represented by 48 species and 12,485 individuals. On fruits, the Mesostigmatid mites included three families and eight species. The Prostigmatid mites included nine families and 18 species, totalling 852 individuals. Brevipalpus sp. was the most abundant and frequent species, representing approximately 92% of the Prostigmatid mites. The present work reveals the occurrence of predator mites on coffee plants in the region: Euseius alatus, Amblyseius herbicolus, Iphiseiodes matatlanticae, Armascirus sp.1 and Dactyloscirus sp..

scholarly journals Studies on mineral nutrition of the coffee plant (Coffea arabica L. cv. Catuaí Vermelho): LXIV. Remobilization and re-utilization of nitrogen and potassium by normal and deficient plants

2003 ◽  
Vol 63 (3) ◽  
pp. 481-490 ◽  
Author(s):  
O. F. de Lima Filho ◽  
E. Malavolta
Keyword(s):  
Mineral Nutrition ◽  
Coffea Arabica ◽  
Coffee Plant ◽  
Flower Buds ◽  
Labelled Nitrogen ◽  
Coffee Plants ◽  
Fruit Formation ◽  
Coffea Arabica L

Remobilization and re-utilization of 15N and 85Rb labelled nitrogen and potassium reserves for new growth and fruit formation was studied under greenhouse conditions using both normal and deficient young coffee plants. It was found that K reserves are used in higher proportion than is stored N by fruits and other organs. The export of N by organs of residence in the normal plants obeyed the following proportions of the total: leaves 47%-58%, branches and flower buds 21%-27%, roots 21%-32%. The corresponding figures in the case of deficient plants were: leaves 49%-65%, branches and flower buds 21%-27%, roots 14%-25%. Re-utilization of K took place in the following proportions in the normal plants: leaves 54%-64%, branches and flower buds 20%-21%, roots 30%-41%. In K deficient plants the figures were: leaves 62%-79%, branches and flower buds 1.2%-4.4%, roots 20%-33%. In tissues formed after the initiation of flowering buds, the demand for N is met by reserves as follows: normal plants: fruits 20.6%-24.8%, leaves 15.6%-19.4%, twigs 19%-20.5%; deficient plants: fruits 43.5%-48.5%, leaves 48.1%-51.9%, twigs 46%-53%. The K needs for new tissues are met in the order: normal plants: fruits 40%-45.8%, leaves 27%-37.6%, twigs 26%-33.1%; deficient plants: fruits 65.7%-81.5%, leaves 52.6%-68.4%, twigs 62%-86.1%. Fruits represent the main sink for both N and K. Re-utilization of both elements is higher in the case of deficient plants.

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