E. Campostrini

Universidade Estadual do Norte Fluminense. Plant Physiology · Ecophysiology of Tropical and Subtropical Crops, LMGV, CCTA

Plants in conventional in vitro culture have a mixotrophic-type metabolism and they can present morphophysiological alterations that may prevent adequate photosynthetic capacity. For this, the objective was to verify whether photomixotrophic conditions could optimize photosynthesis, growth, and development of Ananas comosus under in vitro and ex vi...

Coffea canephora has two botanical varieties, Robusta and Conilon. Intraspecific variability was hypothesized and projected for the selection of C. canephora plants able to maintain production in the context of global climate changes. For that, architectural, C-assimilation and biomass analyses were performed on 17-month-old Robusta (clones ‘A1’ an...

Cloning Melanopsidium nigrum mature trees from detached older branches by cutting is an important tool to conserve the species as it is listed as vulnerable to extinction. We selected sixty-four mother trees, and ten to fifteen branches from each mother tree were used to make cuttings (n = 822) which were maintained in a greenhouse. Half of the cut...

The search for productive germplasm adapted to adverse conditions is an important action to mitigate the harmful effects of climate change. The aim was to identify the yield potential of 50 popcorn inbred lines grown in field conditions, in two crop seasons (CS), and under contrasting water conditions (WC). Morphoagronomic, physiological, and root...

Carica papaya L. is a tropical and subtropical fruit tree. In such climatic regions, cultivation frequently includes exposure to supra-optimal temperatures, which may affect the leaf photosynthetic capacity. Two papaya genotypes, 'Candy' and 'Golden THB', were used to study the effects of supra-optimal temperatures on photochemical responses. The s...

This study aimed to identify the genetic control of morphological, water status, and root traits in four inbred lines and their pre-selected hybrid combinations of popcorn, and to identify the best parents and hybrids. The plants were grown under greenhouse conditions, and with two water conditions—water-stressed (WS) and well-watered (WW). We eval...

The main characteristic of Cannabis sativa L. is the production of compounds of medicinal interest known as phytocannabinoids. Environmental factors and crop management practices are directly related to the yield of these compounds. Knowing how these factors influence the production of phytocannabinoids is essential to promote greater metabolite yi...

Climate change, such as increases in atmospheric air temperature, threatens Brazilian coffee production, which is mainly carried out on small rural properties in a family farming model. Increases in air temperature causes heat stress to the plants, resulting in physiological damage. This work studied the application of processed kaolinite-based par...

NUE. The comparative proteomic analysis allowed the identification of 79 differentially accumulated proteins (DAPs) in the comparison of high/low N for P2 and 96 DAPs in the comparison of high/low N for L80. The NUE and N uptake efficiency (NUpE) presented high means in P2 in comparison to L80 at both N levels, but the NUE, NUpE, and N utilization...

Depletion of the stratospheric ozone layer enhances UV exposure to living organisms. We hypothesized that the adaptative physiological and bioenergetic responses of modern genotypes of Coffea arabica cv. Catuaí Amarelo IAC 62, and C. canephora (Conilon LB1) to actual UV levels would generate additional costs to the detriment of biomass formation an...

Increases in water use efficiency (WUE) and the reduction of negative impacts of high temperatures associated with high solar radiation are being achieved with the application of fine particle film of calcined and purified kaolin (KF) on the leaves and fruits of various plant species. KF was applied on young Coffea arabica and Coffea canephora plan...

In the context of increasing drought frequencies, water sensitive plant species need to have defined irrigation thresholds. One such species is papaya (Carica papaya L.), with a current demand for the selection of drought tolerance genotypes. The aim of this study was to evaluate the growth, leaf gas exchanges, sap flow and chlorophyll (Chl) fluore...

Drought currently affects several regions worldwide and tends to be more frequent due to climate change. It might compromise food security and the economic structure related to agribusiness. Popcorn has a crucial role in the Brazilian economy, but the cultivars that adapt to water stress, the most prejudicial abiotic stress for crop productivity, a...

The identification of traits associated with drought tolerance in popcorn is a contribution to support selection of superior plants under soil water deficit. The objective of this study was to choose morphological traits and the leaf greenness index, measured on different dates, to estimate grain yield (GY) and popping expansion (PE), evaluated in...

To ensure genetic gains in popcorn breeding programs carried out under drought conditions knowledge about the response of morphophysiological traits of plants to water stress for the selection of key traits is required. Therefore, the objective was to evaluate popcorn inbred lines with agronomically efficient (P2 and P3) and inefficient (L61 and L6...

Drought is a common abiotic stress in tropical and subtropical regions that limits the growth and development of agricultural crops, mainly impacting grain yield. Acting through plant breeding is the most viable alternative for obtaining genotypes more tolerant of environments with stress. This work aims to select popcorn genotypes for environments...

This study aimed to evaluate in the papaya Tainung genotype, the effects of partial root-zone drying (PRD) technique on soil water regimes by using different frequencies of shifting irrigation-side of plant row and the effects of PRD technique on (1) crop agronomic performance, (2) titratable fruit acidity (TA), (3) total soluble solids (TSS), and...

gas exchanges (net photosynthetic CO 2 assimilation, stoma-tal conductance and transpiration), instantaneous (WUE) and intrinsic water use efficiency (IWUE), chlorophyll a fluorescence (maximum quantum yield of photosystem II (PSII) (F v /F m), concentration of active reaction centers in relation to the quantity of photons absorbed (RC/ABS) and the...

Growth and photosynthetic capacity of Cattleya warneri T. Moore seedlings cultivated in vitro were evaluated in two environments: (1) growth room (GR) with constant light, humidity, and temperature; and (2) greenhouse (GH) with variable humidity, temperature, and light intensity and quality. In both environments, two different tissue culture vessel...

Despite the negative impacts of increased ultraviolet radiation intensity on plants, these organisms continue to grow and produce under the increased environmental UV levels. We hypothesized that ambient UV intensity can generate acclimations in plant growth, leaf morphology, and photochemical functioning in modern genotypes of Coffea arabica and C...

In horticulture, different planting designs can be used to optimize the plant production. In the coffee tree, we assumed that different planting densities and spatial patterns may impact the growth of all branching order axes, which in turn would impact the berry production. The aim of this study was to quantify and compare axes growth, leaf area,...

In horticulture, different planting designs can be used to optimize the plant production. In the coffee tree, we assumed that different planting densities and spatial patterns may impact the growth of all branching order axes, which in turn would impact the berry production. The aim of this study was to quantify and compare axes growth, leaf area,...

Leaves in different positions respond differently to dynamic fluctuations in light availability, temperature and to multiple environmental stresses. The current hypothesis states that elevated atmospheric CO2 (e[CO2]) can compensate for the negative effects of water scarcity regarding leaf gas exchanges and coffee bean quality traits over the canop...

Knowing the key hydraulic traits of different genotypes at early seedling stages can potentially provide crucial information and save time for breeding programs. In the current study we investigated: (1) how root, stem and whole plant conductivities are linked to xylem traits, and (2) how the integrated hydraulic system impacts leaf water potential...

Main conclusion: Higher vacuolar proton pump activity may increase plant energy and nutrient use efficiency and provide the nexus between plant inoculation with Herbaspirillum seropedicae and growth promotion. Global change and growing human population are exhausting arable land and resources, including water and fertilizers. We present inoculatio...

Getting around the damage caused by drought is a worldwide challenge, particularly in Brazil, given that economy is based on agricultural activities, including popcorn growing. The purpose of this study was to evaluate popcorn inbred lines under water stressed (WS) and well-watered (WW) conditions regarding agronomic attributes, root morphology, an...

Partial rootzone drying (PRD) is an irrigation technique that usually applies less water (than well-watered control treatments) to only part of the rootzone (the irrigated side) and alternates the irrigated and non-irrigated sides. However, an incomplete understanding of the effects of its components (decreased water application versus frequency of...

The aim of this study was to evaluate the efficiency of cryopreservation by the vitrification technique as a method of long-term conservation of immature seeds of the Cattleya harrisoniana × Cattleya walkeriana hybrid and of Cattleya tigrina with high water contents (49.35% and 65.60%, respectively) and mature seeds of Cattleya guttata with a low w...

Climate change is expected to intensify water restriction to crops, impacting the yield potential in popcorn. This work aimed to evaluate the performance of 10 field cropped popcorn inbred lines cultivated, in two seasons, under well-watered (WW) and water stressed (WS) (ψsoil ≥ - 1.5 MPa) conditions applied by withholding irrigation in the phenolo...

This study unveils the single and combined drought and heat impacts on the photosynthetic performance of Coffea arabica cv. Icatu and C. canephora cv. Conilon Clone 153 (CL153). Well-watered (WW) potted plants were gradually submitted to severe water deficit (SWD) along 20 days under adequate temperature (25/20°C, day/night), and thereafter exposed...

Considering the expansion of forest plantations over the Brazilian territory and the imminent increase in air temperatures due to global warming, the search for technologies that ensure high levels of productivity and high quality plants in clonal nurseries is essential. Applying kaolin-based particle films (KBPF) has been used as a physical barrie...

Information concerning the effects of the transparent plastic covering (TPC) on photosynthetic performance, plant growth and yield of tropically grown grapevines is limited. Thus, this study aimed to evaluate the effects of TPC on leaf gas exchanges, photochemical efficiency, plant growth and both fruit quality and yield in Vitis labrusca cv. ‘Niag...

We examined physiological and growth promotion traits in water-deprived pineapple explants inoculated with two endophytic diazotrophic bacteria. The following questions were addressed: (i) Is the root inoculation efficient to increase bacteria population associated to pineapple explants? (ii) Are nutrient concentrations improved in pineapple explant...

The objective of this study was to estimate the direct and indirect effects of agricultural,morphological, physiological, and root traits of popcorn lines, under two conditions of water supply:full irrigation (FI) and drought stress (DS).Acomplete randomized block design withthree replicationswas used to evaluate the following traits:expanded popco...

This study evaluated gas exchange and therefore sink/source condition of papaya leaves as they age in order to determine the right moment for leaf blade removal under two different strategies of climate control in greenhouses of Almería (SE Spain): Passive control (PCC; climate control of the greenhouse consisting of natural ventilation by only lat...

The papaya genotypes ‘Sunrise Solo’ (SS) and ‘Golden’ (G) are the two most important genotypes of the ‘Solo’ group cultivated in commercial plantations in Brazil. Although the G genotype has a greater acceptance in the external market due to the quality of the fruit, this genotype presents a lower yield (90 t ha-1) compared with genotype SS (120 t...

An unexpected heat resilience, and the mitigation of heat impacts by elevated [CO⁠2] were recently reported in Coffea spp. Plants must maintain membrane fluidity and integrity to cope with temperature changes, which requires an adequate lipid dynamics. This work provides the lipid profile (galactolipids, GL; phospholipids, PL; sulfolipids, SL) of c...

The root ideotype "steep, cheap and deep" improves the efficiency of water capture in environments with water limitation, reducing the harmful effect of drought. The aim of this work was to generate information about the inheritance of nine root traits of popcorn in two contrasting environments regarding water availability. A total of 10 lines (L61...

The root ideotype "steep, cheap and deep" improves the efficiency of water capture in environments with water limitation, reducing the harmful effect of drought. The aim of this work was to generate information about the inheritance of nine root traits of popcorn in two contrasting environments regarding water availability. A total of 10 lines (L61...

As plantações florestais estabelecidas com mudas apresentam heterogeneidade e dificuldades de manejo. Assim, uma alternativa a estes obstáculos é o uso de clones com alta produtividade. Além disso, as plantas clonais diferem das plantas seminíferas na estrutura do sistema radicular, o que pode influenciar a eficiência na absorção de água e de nutri...

Achieving food security in a context of environmental sustainability is one of the main challenges of the XXI century. Two competing strategies to achieve this goal are the use of genetically modified plants and the use of plant growth promoting microorganisms (PGPMs). However, few studies assess the response of genetically modified plants to PGPMs...

Background and Aims: Although hypernodulating phenotype mutants of legumes, such as soybean, possess a high leaf N content, the large number of root nodules decreases carbohydrate availability for plant growth and seed yield. In addition, under conditions of high air vapour pressure deficit (VPD), hypernodulating plants show a limited capacity to r...

Golden genotype of papaya (Carica papaya L.), named for its yellowish leaves, produces fruits very much appreciated by consumers worldwide. However, its growth and yield are considerably lower than those of other genotypes, such as ‘Sunrise Solo’, which has intensely green leaves. We undertook an investigation with the goal of evaluating key physio...

Papaya (Carica papaya L.) is one of the main horticultural crops of many tropical and subtropical regions. The fruit is sold either as a fresh product or processed into drinks, jams, candies, dried and crystallized fruit, while the enzyme papain is used for medicinal purposes. Papaya fruits have high vitamins A and C contents, as well as are good s...

Soil water limitations can cause high losses in agricultural yields. In order to investigate how popcorn varieties are affected by reduced water availability, we evaluated grain yield (GY) and popping expansion (PE) of 20 popcorn lines under water stress (WS) and well-watered conditions (WW), to propose discrimination with regard to the level of wa...

Interstocked seedlings are produced by making two successive grafts. In one of the methods used, interstocked seedlings can be produced by introducing a rootstock by inarching and a scion by budding in a previously formed seminiferous seedling. The hypothesis of the present research is that double grafting may reduce shoot hydraulic conductivity an...

Warming of the global climate is expected to be accompanied by a reduction in rainfall in the subtropics and an increase in precipitation in subpolar latitudes and some equatorial regions (Blum, 2011). This pattern can be described in broad terms as the wet getting wetter and the dry getting drier, since subtropical land regions are mostly semi-ari...

Organic matter is a fundamental component of a substrate. However, different organic matter sources can provide different physiological responses from seedlings as a result of different types and concentrations of humic substances, which influence the functioning of the plant and the structuring of the soil. The objective of this work was to quanti...

The objective of this study was to assess the physiological aspects of young green dwarf coconut cultivated in greenhouse as a function of soil class and different compaction levels and moisture conditions. The experiment was carried out in a greenhouse, using a randomized complete block design with nine replications and with 32 treatments in a 2 9...

The application of brassinosteroids (BR) is associated with increased tolerance to various stresses such as those induced by pathogens, temperature, salinity and drought. Here, we studied the influence of BRs analogues on the leaf senescence of papaya juvenile plants. The objective was to determine whether BRs affect plant growth and leaf senescenc...

Tannery wastewater sludge is an industrial residue that can be used in the pure form or associated to other residues, such as byproduct production from cultivated plants. The objective of the present study was to assess substrate composition for producing conilon coffee stem cuttings, varying increasing tannery wastewater sludge doses. A randomized...

Grafting has been used in passion fruit as a promising strategy for the improvement of traditional cultivars, which have roots susceptible to several soil pathogens. However, the effect of grafting on gas exchange, water relations, and photochemical efficiency in passion fruit is still not understood. The objective of this study was to evaluate the...

Passion fruit plants (Passiflora spp.) have very dense canopies so that leaves located at the top of them can shade the ones more internally located. This shade can change physiological and morphological leaf traits. Here we used gas exchange and chlorophyll a fluorescence parameters as tools to evaluate the responses of full sun-light exposed (FSE...

Tannery wastewater sludge is an industrial residue that can be used in the pure form or associated to other residues, such as byproduct production from cultivated plants. The objective of the present study was to assess substrate composition for producing conilon coffee stem cuttings, varying increasing tannery wastewater sludge doses. A randomized...

We examined the interactive effects of deficit irrigation and transparent plastic covering (TPC) on key physiological traits in tropically grown grapevines. ‘Niagara Rosada’ grapevine (Vitis labrusca) was subjected to both Regulated Deficit Irrigation (RDI) and Partial Rootzone Drying (PRD) while being grown under a TPC to address the following que...

Climate variability strongly determines agricultural productivity, further causing important economic and social impacts. In a context of global climate changes, the continuous enhancement of agricultural production in the coming years is a major challenge for plant science research. Coffee, one of the most important agricultural commodities worldw...

Crop sustainability can be threatened by new environmental challenges regarding predicted climate changes and global warming. Therefore, the study of real biological impacts of future environmental conditions (e.g., increased air [CO2], supra-optimal temperature and water scarcity) on crop plants, as well as the re-evaluation of management procedur...

https://doi.org/10.1016/B978-0-12-813164-0.00019-3 Water Scarcity and Sustainable Agriculture in Semiarid Environment: Tools, Strategies and Challenges for Woody Crops explores the complex relationship between water scarcity and climate change, agricultural water-use efficiency, crop-water stress management and modeling water scarcity in woody cro...

Temperature increase assumes a prominent role in the context of expected climate change because of its significant impact on plant metabolism. High temperature can affect the carbon-assimilation pathway at both stomatal and non-stomatal levels, mainly through stomatal closure and photochemical and biochemical limitations. In general, however, plant...

In tropical regions, farmers have used transparent plastic covering (TPC) above the canopy of grapevines cultivated under field conditions, in order to avoid wetting the leaves and fruits, and reduce the use of fungicides. In these regions, it was found that the TPC reduced the photosynthetic photon flux (PPF) on the canopy, and increased the fract...

World coffee production has faced increasing challenges associated with ongoing climatic changes. Several studies, which have been almost exclusively based on temperature increase, have predicted extensive reductions (higher than half by 2050) of actual coffee cropped areas. However, recent studies showed that elevated [CO2] can strongly mitigate t...

Papaya (Carica papaya L.) nutrient requirements can be supplied through fertigation. However, this application method can increase solute concentrations, thereby increasing salinity and raising the electrical conductivity (EC) of the substrate when the nutrients are applied at supra-optimal levels. This can profoundly affect plant photosynthetic ca...

We considered the interactive effects of elevated CO2 concentration [CO2] and reduced water availability (Partial Rootzone Drying – PRD and drought) on a variety of important physiological and growth traits in grapevine (Vitis labrusca). The following questions were addressed: (i) Will there be a down-regulation of photosynthesis at elevated [CO2]...

The objective of the present study was to assess the physiological aspects related to the activity of mesotrione herbicide at different doses in corn plants. The experiment was performed, in a greenhouse, on UENF 506-8 hybrid grown in 12 L pots with substrate (2:1 sand and clay). A randomized complete block design in a 3 x 5 factorial scheme, with...

Lemongrass (Cymbopogon citratus) (Poaceae) is an essential oil rich plant widely used as a flavoring due to its lemon scent. Conditions of stress are often associated with an increase in secondary metabolite production. Studies with root growth restriction have shown that under this stressful condition plants are dwarfish. The factors responsible f...