Temperatura do ar em sistemas de produção de café arábica em monocultivo e arborizados com seringueira e coqueiro-anão na região de Mococa, SP

Valentini, L.; Camargo, Marcelo Bento Paes de; Rolim, Glauco de Souza; Souza, Paulo Sergio de; Gallo, Paulo Boller

doi:10.1590/s0006-87052010000400028

Cited by 13 publications

(11 citation statements)

References 10 publications

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“…In most situations, drought impacts can be greatly aggravated by supra-optimal air temperatures 15 . Extreme temperatures, depending on their intensity, duration, and speed of imposition, impair cell metabolic processes (e.g., photosynthesis) 16,17 , growth and survival of plants, as well as their economic exploitation 16 . In the region of study, it is common the occurrence of summer temperatures reaching up to 40 °C.…”

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confidence: 99%

Impact of drought associated with high temperatures on Coffea canephora plantations: a case study in Espírito Santo State, Brazil

Venâncio

Filgueiras

Mantovani

et al. 2020

Sci Rep

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Droughts are major natural disasters that affect many parts of the world all years and recently affected one of the major conilon coffee-producing regions of the world in state of Espírito Santo, which caused a huge crisis in the sector. Therefore, the objective of this study was to conduct an analysis with technical-scientific basis of the real impact of drought associated with high temperatures and irradiances on the conilon coffee (Coffea canephora Pierre ex Froehner) plantations located in the north, northwest, and northeast regions of the state of Espírito Santo, Brazil. Data from 2010 to 2016 of rainfall, air temperature, production, yield, planted area and surface remote sensing were obtained from different sources, statistically analyzed, and correlated. The 2015/2016 season was the most affected by the drought and high temperatures (mean annual above 26 °C) because, in addition to the adverse weather conditions, coffee plants were already damaged by the climatic conditions of the previous season. The increase in air temperature has higher impact (negative) on production than the decrease in annual precipitation. The average annual air temperatures in the two harvest seasons that stood out for the lowest yields (i.e. 2012/2013 and 2015/2016) were approximately 1 °C higher than in the previous seasons. In addition, in the 2015/2016 season, the average annual air temperature was the highest in the entire series. The spatial and temporal distribution of Enhanced Vegetation Index values enabled the detection and perception of droughts in the conilon coffee-producing regions of Espírito Santo. The rainfall volume accumulated in the periods from September to December and from April to August are the ones that most affect coffee yield. The conilon coffee plantations in these regions are susceptible to new climate extremes, as they continue to be managed under irrigation and full sun. The adoption of agroforestry systems and construction of small reservoirs can be useful to alleviate these climate effects, reducing the risk of coffee production losses and contributing to the sustainability of crops in Espírito Santo.

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confidence: 99%

Impact of drought associated with high temperatures on Coffea canephora plantations: a case study in Espírito Santo State, Brazil

Venâncio

Filgueiras

Mantovani

et al. 2020

Sci Rep

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“…In the reduction of the solar radiation flux, observed inside the agroforestry systems of the present work, there was reduction of the air heating process by irradiation, which was reflected in a decline in air temperature. Valentini et al (2010) observed that the greatest effects of the production system with the presence of the arboreal component were observed in the maximum air temperature, where a greater reduction in the values for the summer and spring seasons can be observed. Menezes et al (2002) found reductions of 2, 8°C in the maximum temperatures under canopies of Ziziphus joazeiro in relation to full sun Marin et al (2006) observed increments up to 2°C at maximum air temperature at three meters distance from Gliricidia sepium trees when compared to measurements more near to the plant.…”

Section: Discussionmentioning

confidence: 95%

Agroforestry systems and understory harvest management: the impact on growth and productivity of dual-purpose wheat

Caron

Pinheiro

Korcelski

et al. 2019

An. Acad. Bras. Ciênc.

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The objective of the study was to evaluate the growth and production efficiency of forage-grain dual-purpose wheat in two arrangements and four agroforestry systems (Intercrop-I and Intercrop-II), as well as to evaluate crop management for the wheat crops in two planting seasons (Crop Season I-2014 and Crop Season II-2015. The experiment was conducted in a randomized complete block design, factorial scheme 7x2x2, with seven cultivation systems eucalyptus urophylla x eucalyptus grandis Intercrop

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“…Furthermore, the species of shade tree affects PAR interception (COELHO et al, 2010), evaporative rates (PADOVAN et al, 2018;PADOVAN et al, 2015), air (RICCI et al, 2013;VALENTINI et al, 2010) and soil temperature, as well as thermal amplitude (RICCI et al, 2013).…”

Section: Canopy Density and Canopyoccupation Ratementioning

confidence: 99%

Effects of Shade Tree Spatial Distribution and Species on Photosynthetic Rate of Coffee Trees

Neto

Bonfanti

Gazaffi

et al. 2019

C.Sci.

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The use of shade trees in coffee fields have been motivated by climatic changes. However, microclimatic conditions in shaded coffee fields differ due to shade tree spatial distribution and species, altering physiological responses of coffee trees. This study aimed to evaluate the effects of shade tree spatial distribution and species on coffee trees photosynthetic rate in two growth seasons, of high (HSD) and low (LSD) sink demand. The experimental design consisted of randomized blocks with three replicates in split-split-plots. Plots were the shade tree species: Anadenanthera falcata, Cassia grandis and Peltophorum dubium. Split plot was formed by five distances between coffee trees and shade tree trunks: coffee trees on planting row of shade trees, distancing one (D1L) and five (D5L) meters from shade trees trunk; coffee trees on inter-rows of shade trees, parallel to D1L and D5L (D1E and D5E); coffee trees distancing 77 meters from shade tree trunks, in a full-sun field (PS). The split-split-plots correspond to coffee tree canopy exposure to the sun: branches facing North or South. Shade trees canopy density and occupation was evaluated with a convex densiometer. Photosynthetic rate (Pn)and photosynthetic active radiation (PAR) were measured with an Infrared Gas Analyzer (IRGA) on two time-frames, between 7.00 and 9.00 solar hours and between 11.00 and 13.00. Shade tree canopy density and occupation was not homogenous during the change of seasons and shift due to spatial distribution, which also changes PAR levels. Shade trees reduce PAR to more suitable values for coffee tree exploitation, especially on D1L and D5L. During HSD, shading did not affect Pn, which was greater in branches facing North. Yet, in LSD, between 11.00 and 13.00, coffee trees shaded with A. falcata showed greater Pn than at PS. Coffee trees shaded with C. grandis at D5L and D1E had greater values of Pn than PS.

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Temperatura do ar em sistemas de produção de café arábica em monocultivo e arborizados com seringueira e coqueiro-anão na região de Mococa, SP

Cited by 13 publications

References 10 publications

Impact of drought associated with high temperatures on Coffea canephora plantations: a case study in Espírito Santo State, Brazil

Impact of drought associated with high temperatures on Coffea canephora plantations: a case study in Espírito Santo State, Brazil

Agroforestry systems and understory harvest management: the impact on growth and productivity of dual-purpose wheat

Effects of Shade Tree Spatial Distribution and Species on Photosynthetic Rate of Coffee Trees

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