Escala fenológica detalhada da fase reprodutiva de Cooffea arabica

Morais, Heverly; Caramori, Paulo Henrique; Koguishi, Mirian Sei; Ribeiro, Ana Maria de Arruda

doi:10.1590/s0006-87052008000100031

Cited by 38 publications

(40 citation statements)

References 2 publications

(1 reference statement)

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“…Segundo Morais et al (2008), a passagem da gema à fase reprodutiva pode ser caracterizada pelos seguintes estádios ou subfases: G1 -nós com gemas indiferenciadas; G2 -nós com gemas intumescidas; G3 -gemas com até 3,0 mm de comprimento; G4 -gemas medindo de 3,1 mm a 6,0 mm de comprimento; G5 -gemas de 6,1 mm a 10,0 mm (coloração verde clara); e G6 -gemas maiores que 10,0 mm (coloração branca). Após o G6, normalmente, ocorre abertura das flores nas primeiras horas da manhã, as quais começam a murchar, no segundo dia, caindo no terceiro.…”

Section: Fisiologia Do Estresse Hídrico Em Caféunclassified

A moderna cafeicultura dos cerrados brasileiros

Fernandes

Partelli

Bonomo

et al. 2012

Pesqui. Agropecu. Trop.

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A cafeicultura brasileira apresenta grande importânica na geração de empregos, recursos e divisas, sendo bastante diversificada, com particularidades regionais. O Cerrado brasileiro abrange mais de 200 milhões de hectares, distribuídos nos Estados de Minas Gerais, Goiás, Mato Grosso, Mato Grosso do Sul, Tocantins, Bahia, Piauí, Maranhão e Distrito Federal, e tem se destacado com produção superior a 5 milhões de sacas por ano, principalmente de Coffea arabica L. A cafeicultura, nesta região, é caracterizada por apresentar produtividade acima da média nacional e utilizar, de maneira mais eficiente, insumos agrícolas, irrigação, genótipos apropriados e mecanização, dentre outras práticas. A cafeicultura irrigada ocupa, no Brasil, 240.000 ha, estando a maioria desta área localizada em regiões de Cerrado, representando mais de 10% da área e mais de 25% da produção de café total no País. Os sistemas de irrigação mais utilizados são os de aspersão (convencional, em malha e pivô central) e os localizados (gotejamento e modificados). O clima é favorável à qualidade do café, pois, na época da colheita, ocorrem condições de baixa umidade relativa do ar, sendo as chuvas concentradas no verão. Verifica-se, também, nas áreas de Cerrado, maior quantidade de insolação, principalmente nos meses de outono e inverno, também favorável à produtividade e qualidade. As variedades mais plantadas são do grupo Catuaí e Mundo Novo, tendo sido, também, introduzidos outros materiais promissores, com relação à produtividade e resistência à seca e a doenças.

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Section: Fisiologia Do Estresse Hídrico Em Caféunclassified

A moderna cafeicultura dos cerrados brasileiros

Fernandes

Partelli

Bonomo

et al. 2012

Pesqui. Agropecu. Trop.

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“…As a result, to sustain a high load of fruits in wider spacing, with low RAFFr, the individual mass of sinks (mass/fruit) was lowered. In December 2013, fruits had not yet entered the phase of high carbohydrate demand, which only occurred later in the fruit-filling phase (MORAIS et al, 2008;DaMATTA et al, 2007;LAVIOLA et al, 2007). In fact, in the assessment performed in April 2014, unlike that made in the previous year, the spacing factor alone did not affect variables related to plagiotropic branches, such that the RAFFr remained at approximately 19 cm 2 fruit -1 , regardless of factors investigated.…”

Section: Resultsmentioning

confidence: 86%

Morphophysiological plasticity of plagiotropic branches in response to change in the coffee plant spacing within rows

Ronchi

Almeida

Souza

et al. 2016

SCA

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Changes in spacing within rows may alter the morphology of the coffee plant by affecting the physiological constituents of its productivity. Even though some common plant responses to crop spacing variation are known, there is yet no scientific evidence that elucidates the effects of decreased spacing on the sourcesink relation in plagiotropic branches and, its association with both productivity and eco-physiological aspects of coffee leaves, mainly for new coffee cultivars in the Brazilian savannah. The aim of this work was to characterize the morphophysiological responses of Coffea arabica L. cultivars subjected to different spacing between plants within rows. Four Arabica coffee cultivars (Catuaí Vermelho IAC 144, Catuaí Amarelo IAC 62, Catuaí Amarelo IAC 32, and Tupi RN IAC 1669-13) were transplanted in January 2010. A row spacing of 0.40, 0.50, 0.60, 0.70, and 0.80 m was adopted between plants, maintaining a 3.80-m constant between rows. A randomized block design with four replicates was applied. During the experimental period, several morphophysiological characteristics of plagiotropic fruiting branches were evaluated in the months of April and December in 2013 and, in April 2014. The evaluation was conducted based on two canopy positions; canopy toward the rows, representing low exposure to light or toward the inter-row spacing, representing high light exposure. Leaf gas exchange, chlorophyll fluorescence, and photosynthetic pigments levels were minimally or not at all affected by changing either the coffee cultivars or plant spacing. During the first evaluation, the leaf-to-fruitratio linearly increased, regardless of the cultivar. Light-exposed branches showed higher content of carotenoids and chlorophyll a in leaves and lower leaf-to-fruit-ratio as compared to those within the plant canopy. A major reduction in the number of fruits per branch was observed which was closely related to a parallel decrease in the number of fruits per node but not in the number of fruiting nodes per branch. Although this response was largely cultivar-dependent, it also changed according to the branch position in the hedgerow. Our results suggest that all tested cultivars exhibit high morphophysiological plasticity and have the potential to grow under different plant spacing within rows. Key words: Coffea arabica. Gas exchange. High-density planting. Leaf area. Source/sink relationship. ResumoA variação do espaçamento dentro da linha de plantio pode interferir na morfologia do cafeeiro, alterando seus componentes de produtividade. Apesar de algumas respostas gerais à variação do espaçamento serem conhecidas, nenhum trabalho anteriormente demonstrou como e quanto a redução do espaçamento na linha altera a relação fonte: dreno de ramos plagiotrópicos, associando-a com os componentes de produtividade e com aspectos ecofisiológicos foliares. Isso considerando as modernas tecnologias e cultivares em uso no Cerrado. O objetivo deste trabalho foi quantificar as respostas morfofisiológicas em ramos plagiotrópicos de cultiv...

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“…According to Pezzopane et al (2003) and Morais et al (2008), the development of coffee tree berries passes through a series of distinct stages, whereby grain filling precedes ripening. According to these authors, the greencane coloring marks the beginning of ripening, when the berries begin to change from green to yellow, evolving until the cherry stage.…”

Section: Resultsmentioning

confidence: 99%

“…The fraction of immature fruits removed from each batch of coffee can generally be differentiated into green and green-cane categories. Morais et al (2008) demonstrated, through a phenological scale, that the ripeness of coffee begins with green berries, which pass to green-cane and subsequently cherry. The green-cane stage, for being close to maturity, already presents characteristics which enable pulping.…”

Section: Introductionmentioning

confidence: 99%

Coffee production through wet process: Ripeness and quality

Dalvi¹,

Sakiyama²,

Andrade³

et al. 2017

Afr. J. Agric. Res.

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Coffee has the characteristic of ripening unevenly. Production through wet process favors ripe berries. The fraction of green and green-cane fruit on the coffee tree is normally treated as an inferior quality product. The objective of this work was to evaluate the physical and sensorial aspects of the quality of green-cane and cherry coffee produced through wet process. Batches of coffee were separated according to ripeness and pulped. Drying was carried out on raised patios until reaching 11% wb. After processing, the beans were selected and classified by size. The sensorial analysis was performed through cupping using the scale of the Brazilian Specialty Coffee Association (BSCA). The experiment was carried out at DBC with seven blocks each containing four plots, the source of variance being the ripeness on two levels: cherry and green-cane. The data was subjected to variance analysis (ANOVA) and the averages compared using F test at 5%. Green-cane coffee presented better yield both in sieving and dry mass, as well as a higher quantity of defects. The final cup quality rating did not differ in regard to ripeness. The pulped green-cane coffee may have added value for its beverage quality.

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Escala fenológica detalhada da fase reprodutiva de Cooffea arabica

Cited by 38 publications

References 2 publications

A moderna cafeicultura dos cerrados brasileiros

A moderna cafeicultura dos cerrados brasileiros

Morphophysiological plasticity of plagiotropic branches in response to change in the coffee plant spacing within rows

Coffee production through wet process: Ripeness and quality

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