cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.19944873
title: Influence of grafting production method on agronomic performance of wine grape varieties

description: Abstract Agronomic performance of different types of Chardonnay, Malbec, Merlot and Sauvignon Blanc vines grafted on ‘1103 Paulsen’ rootstock were evaluated after planting in Videira-SC. The treatment factors tested were the variety scions and grafted plants: RN – year-old bare root produced by omega grafting, EV – year-old bare root rootstock grafted in the summer, EI – rootstock cuttings rooted first in pots and then planted in the field at the end of spring and grafted in the following winter, FE - rootstock cuttings incubated for callusing and grafted just after the emission of first roots and then planted in the field, BI – year-old bare root rootstocks planted in the field in the winter and then grafted in the following winter, BE –year-old bare root rootstocks grafted and planted in the field after the scion buds started sprouting. The study was carried out as a randomized block experimental design. The ‘Chardonnay’ variety showed slower growth compared to the others, regardless of the grafted plant used. It is possible to implement commercial vineyards using all the types of grafted plants evaluated. The vines produced by BE, RN and FE presented a higher survival rate after being planted in the field.
DOI: 10.6084/m9.figshare.19944873.v1
title: Influence of grafting production method on agronomic performance of wine grape varieties

description: Abstract Agronomic performance of different types of Chardonnay, Malbec, Merlot and Sauvignon Blanc vines grafted on ‘1103 Paulsen’ rootstock were evaluated after planting in Videira-SC. The treatment factors tested were the variety scions and grafted plants: RN – year-old bare root produced by omega grafting, EV – year-old bare root rootstock grafted in the summer, EI – rootstock cuttings rooted first in pots and then planted in the field at the end of spring and grafted in the following winter, FE - rootstock cuttings incubated for callusing and grafted just after the emission of first roots and then planted in the field, BI – year-old bare root rootstocks planted in the field in the winter and then grafted in the following winter, BE –year-old bare root rootstocks grafted and planted in the field after the scion buds started sprouting. The study was carried out as a randomized block experimental design. The ‘Chardonnay’ variety showed slower growth compared to the others, regardless of the grafted plant used. It is possible to implement commercial vineyards using all the types of grafted plants evaluated. The vines produced by BE, RN and FE presented a higher survival rate after being planted in the field.
DOI: 10.6084/m9.figshare.19944876
title: Genetic resources of mangabeira (Hancornia speciosa Gomes) in protected areas in Brazil

description: Abstract Brazil, a recognized country for its rich biodiversity, is also known for the rapid loss of a significant part of its in situ genetic resources. Among hundreds of native species that have great potential for economic exploitation, many are not yet acknowledged or are yet to be described. The mangabeira (Hancornia speciosa Gomes) is a fruit tree at the begging of the domestication process and has enormous economic potential. However, it is being affected by genetic erosion. In this communication, we describe five populations of mangabeira located in distinct protected areas in the Midwest and Northeast regions of Brazil, where the varieties speciosa and pubescens occur. We show that even in protected areas, mangabeira plants are not in the best situation for conservation. The areas are located in diverse biomes and environmental conditions; therefore, such populations provide an opportunity to improve the knowledge about the species and map its areas of occurrence. We highlight the relevance of maintaining mangabeira populations as reservoirs of genetic resources, which leverage the utilization of the genetic variability of this species. These descriptions highlight the significant importance of maintaining protected areas as a suitable strategy for in situ conservation.
DOI: 10.6084/m9.figshare.19944876.v1
title: Genetic resources of mangabeira (Hancornia speciosa Gomes) in protected areas in Brazil

description: Abstract Brazil, a recognized country for its rich biodiversity, is also known for the rapid loss of a significant part of its in situ genetic resources. Among hundreds of native species that have great potential for economic exploitation, many are not yet acknowledged or are yet to be described. The mangabeira (Hancornia speciosa Gomes) is a fruit tree at the begging of the domestication process and has enormous economic potential. However, it is being affected by genetic erosion. In this communication, we describe five populations of mangabeira located in distinct protected areas in the Midwest and Northeast regions of Brazil, where the varieties speciosa and pubescens occur. We show that even in protected areas, mangabeira plants are not in the best situation for conservation. The areas are located in diverse biomes and environmental conditions; therefore, such populations provide an opportunity to improve the knowledge about the species and map its areas of occurrence. We highlight the relevance of maintaining mangabeira populations as reservoirs of genetic resources, which leverage the utilization of the genetic variability of this species. These descriptions highlight the significant importance of maintaining protected areas as a suitable strategy for in situ conservation.
DOI: 10.6084/m9.figshare.19944878.v1
title: Collection positions in the branch, humic substances and indolebutyric acid in ‘Arbequina’ olive minicuttings

description: Abstract Obtaining quality plantlets is essential for the expansion of olive growing in Brazil. Olive tree plantlets are produced by cuttings and the great obstacle for the production of plantlets on a large scale is the low rooting rate. In this sense, minicutting is a promising alternative, as it can optimize the collection of propagules and provide an improvement in the rooting index. The objective of this study was to verify the propagation of ‘Arbequina’ olive minicuttings collected in different positions of the branch and submitted to concentrations of humic substances with and without the use of indolebutyric acid (IBA). The experimental design was completely randomized, in a bifactorial scheme: collection positions in the branch (basal, median and apical) and concentrations of humic substances (SoloHumics®) with and without IBA (10 mL SoloHumics® + 0 mg L-1 IBA; 10 mL SoloHumics® + 1,000 mg L-1 IBA; 10 mL SoloHumics® + 2,000 mg L-1 IBA; and 10 mL SoloHumics® + 3,000 mg L-1 IBA). The ‘Arbequina’ olive tree can be propagated by basal and apical minicuttings submitted to the use of SoloHumics® + 1,000 mg L-1 of IBA and by medium minicuttings treated with SoloHumics® + 2,000 mg L-1 of IBA, due to the greater rooting potential.
DOI: 10.6084/m9.figshare.19944878
title: Collection positions in the branch, humic substances and indolebutyric acid in ‘Arbequina’ olive minicuttings

description: Abstract Obtaining quality plantlets is essential for the expansion of olive growing in Brazil. Olive tree plantlets are produced by cuttings and the great obstacle for the production of plantlets on a large scale is the low rooting rate. In this sense, minicutting is a promising alternative, as it can optimize the collection of propagules and provide an improvement in the rooting index. The objective of this study was to verify the propagation of ‘Arbequina’ olive minicuttings collected in different positions of the branch and submitted to concentrations of humic substances with and without the use of indolebutyric acid (IBA). The experimental design was completely randomized, in a bifactorial scheme: collection positions in the branch (basal, median and apical) and concentrations of humic substances (SoloHumics®) with and without IBA (10 mL SoloHumics® + 0 mg L-1 IBA; 10 mL SoloHumics® + 1,000 mg L-1 IBA; 10 mL SoloHumics® + 2,000 mg L-1 IBA; and 10 mL SoloHumics® + 3,000 mg L-1 IBA). The ‘Arbequina’ olive tree can be propagated by basal and apical minicuttings submitted to the use of SoloHumics® + 1,000 mg L-1 of IBA and by medium minicuttings treated with SoloHumics® + 2,000 mg L-1 of IBA, due to the greater rooting potential.
DOI: 10.6084/m9.figshare.19944879
title: First report of Meloidogyne incognita infecting white Pitahaya plants

description: Abstract In July 2020, during a survey carried out in a small farm located in Laranjal Paulista, state of São Paulo (Brazil), more than 20 white pitahaya plants [Hylocereus undatus (Haw.) Britton and Rose (syn. Selenicereus undatus (Haw.) D.R. Hunt] were found with stunting symptoms and showing chlorotic-yellowish stems, some of them already decaying. Roots exhibited numerous galls, indicating Meloidogyne sp. infection. Nematodes were recovered from 200 cm³ and 7 g of roots: 1.7 Meloidogyne juveniles (J2) per cm³ of soil and 954 eggs + J2 per g of roots were found. The perineal pattern of 10 females pointed to M. incognita. Additionally, esterase phenotype was obtained through isozyme electrophoresis, using another 10 females, which identified M. incognita. To our knowledge, this is the first report of M. incognita infesting pitahaya plants (Hylocereus spp.) and, based on our results, M. incognita could be a potential threat to the crop.
DOI: 10.6084/m9.figshare.19944879.v1
title: First report of Meloidogyne incognita infecting white Pitahaya plants

description: Abstract In July 2020, during a survey carried out in a small farm located in Laranjal Paulista, state of São Paulo (Brazil), more than 20 white pitahaya plants [Hylocereus undatus (Haw.) Britton and Rose (syn. Selenicereus undatus (Haw.) D.R. Hunt] were found with stunting symptoms and showing chlorotic-yellowish stems, some of them already decaying. Roots exhibited numerous galls, indicating Meloidogyne sp. infection. Nematodes were recovered from 200 cm³ and 7 g of roots: 1.7 Meloidogyne juveniles (J2) per cm³ of soil and 954 eggs + J2 per g of roots were found. The perineal pattern of 10 females pointed to M. incognita. Additionally, esterase phenotype was obtained through isozyme electrophoresis, using another 10 females, which identified M. incognita. To our knowledge, this is the first report of M. incognita infesting pitahaya plants (Hylocereus spp.) and, based on our results, M. incognita could be a potential threat to the crop.
DOI: 10.6084/m9.figshare.19944881
title: Mapping Apple Orchards in the municipality of São Joaquim (Santa Catarina, Brazil) using Sentinel-2 data

description: Abstract This study carried out a mapping procedure focusing on apple orchards considering the planted area, spatial location, altitude range, slope interval, and presence of anti-hail nets in the city of São Joaquim (Southern Santa Catarina Plateau, Brazil). Spectral images from the Sentinel-2 orbital platform acquired in August 2018 and an enhanced digital elevation model from the Shuttle Radar Topography Mission (SRTM) were used. In a GIS application configured with the SIRGAS 2000,4 reference system and UTM cartographic projection, Sentinel-2 constellation images and digital elevation models from the SRTM mission and more recently refined with sensor data Phased Array type L-band Synthetic Aperture Radar (PALSAR) were added. All images were resampled to a spatial resolution of 10m. The results were validated based on high spatial resolution images available from Google Earth. The results show that São Joaquim has a planted area of 7,974.80 ha, and only 12% use an anti-hail coverage system. The majority of the orchards range from one to five ha and belong to small producers. More than 50% of the orchards are between 1,200 and 1,400 m in altitude, with 45% of orchards located in areas with slopes between 8 to 20%. Interestingly, most of the orchards are concentrated in a radius of up to 20km from the urban center of São Joaquim, where industries and cooperatives are located for packaging, processing, and logistics. This study demonstrated that orbital data from Sentinel-2 can effectively quantify the distribution of apple orchards, being a viable and effective alternative for collecting information for agricultural monitoring. In this way, it enables efficient planning of apple production, such as technical assistance, marketing with producers, and production flow.
DOI: 10.6084/m9.figshare.19944881.v1
title: Mapping Apple Orchards in the municipality of São Joaquim (Santa Catarina, Brazil) using Sentinel-2 data

description: Abstract This study carried out a mapping procedure focusing on apple orchards considering the planted area, spatial location, altitude range, slope interval, and presence of anti-hail nets in the city of São Joaquim (Southern Santa Catarina Plateau, Brazil). Spectral images from the Sentinel-2 orbital platform acquired in August 2018 and an enhanced digital elevation model from the Shuttle Radar Topography Mission (SRTM) were used. In a GIS application configured with the SIRGAS 2000,4 reference system and UTM cartographic projection, Sentinel-2 constellation images and digital elevation models from the SRTM mission and more recently refined with sensor data Phased Array type L-band Synthetic Aperture Radar (PALSAR) were added. All images were resampled to a spatial resolution of 10m. The results were validated based on high spatial resolution images available from Google Earth. The results show that São Joaquim has a planted area of 7,974.80 ha, and only 12% use an anti-hail coverage system. The majority of the orchards range from one to five ha and belong to small producers. More than 50% of the orchards are between 1,200 and 1,400 m in altitude, with 45% of orchards located in areas with slopes between 8 to 20%. Interestingly, most of the orchards are concentrated in a radius of up to 20km from the urban center of São Joaquim, where industries and cooperatives are located for packaging, processing, and logistics. This study demonstrated that orbital data from Sentinel-2 can effectively quantify the distribution of apple orchards, being a viable and effective alternative for collecting information for agricultural monitoring. In this way, it enables efficient planning of apple production, such as technical assistance, marketing with producers, and production flow.
DOI: 10.6084/m9.figshare.19944882
title: Impact of heat waves on the bud dormancy of grapevines

description: Abstract The objective of this work was to evaluate the effect of heat waves on the bud dormancy of grapevines with contrasting chilling requirements. ‘Chardonnay’, ‘Merlot’ and ‘Cabernet Sauvignon’ hardwood cuttings were collected in vineyards of Veranópolis, State of Rio Grande do Sul, Brazil, and were exposed to constant (7.2°C) or alternate (7.2 and 18°C for 12/12 hours) temperatures, combined with zero, one or two days a week at 25°C. Periodically, part of cuttings was transferred to 25°C for daily budburst evaluation. Endodormancy (dormancy controlled by cold) was overcome with 150 chilling hours (CH) at 7.2ºC in ‘Chardonnay’, 300 CH in ‘Merlot’ and 400 CH in ‘Cabernet Sauvignon’. Daily temperature cycles ranging from7.2ºC to 18°C did not affect the endodormancy process. Heat waves of 25°C resulted in increase in CH to overcome endodormancy. The negative effect of heat waves depended on their duration, with heat partially canceling out the chilling accumulation after 36 continuous hours on the dormancy. Such evidence shows that the dormancy evolution is affected by the impact of the heat interspersed with cold, and should be considered in the adjustment and/or development of better-adapted models for the prediction of the budburst potential of the grapevine culture in Southern Brazil.
DOI: 10.6084/m9.figshare.19944882.v1
title: Impact of heat waves on the bud dormancy of grapevines

description: Abstract The objective of this work was to evaluate the effect of heat waves on the bud dormancy of grapevines with contrasting chilling requirements. ‘Chardonnay’, ‘Merlot’ and ‘Cabernet Sauvignon’ hardwood cuttings were collected in vineyards of Veranópolis, State of Rio Grande do Sul, Brazil, and were exposed to constant (7.2°C) or alternate (7.2 and 18°C for 12/12 hours) temperatures, combined with zero, one or two days a week at 25°C. Periodically, part of cuttings was transferred to 25°C for daily budburst evaluation. Endodormancy (dormancy controlled by cold) was overcome with 150 chilling hours (CH) at 7.2ºC in ‘Chardonnay’, 300 CH in ‘Merlot’ and 400 CH in ‘Cabernet Sauvignon’. Daily temperature cycles ranging from7.2ºC to 18°C did not affect the endodormancy process. Heat waves of 25°C resulted in increase in CH to overcome endodormancy. The negative effect of heat waves depended on their duration, with heat partially canceling out the chilling accumulation after 36 continuous hours on the dormancy. Such evidence shows that the dormancy evolution is affected by the impact of the heat interspersed with cold, and should be considered in the adjustment and/or development of better-adapted models for the prediction of the budburst potential of the grapevine culture in Southern Brazil.
DOI: 10.6084/m9.figshare.19944885
title: Agronomic performance of rootstocks on the juice grape ‘BRS Magna’ grown in a Brazilian semi-arid region

description: Abstract Rootstocks are widely used in viticulture worldwide and can affect the yield components and quality of grapes and their juices and wines. The aim of the present study was to determine the effect of the rootstock on the yield performance and physical and physical-chemical traits of ‘BRS Magna’ juice grapes grown in the Submédio do Vale do São Francisco. The study was performed over six production cycles in the period from 2015 to 2019 in the Bebedouro experimental field of Embrapa Semiárido in Petrolina, PE, Brazil. The treatments consisted of seven grapevine rootstocks: IAC 572, IAC 766, IAC 313, Paulsen 1103, SO4, Harmony, and Freedom. The following variables were evaluated: estimated yield, number of grape bunches per plant, branch and leaf fresh matter, bunch weight, bunch length and width, berry weight, total soluble solids content (SS), titratable acidity (TA), and SS to TA ratio (SS:TA). Significant effects of the rootstock were observed in all the variables except for SS. The rootstock ‘IAC 572’ led to increases of up to 61% in the yield of ‘BRS Magna’ grapevines, or 32.78 ton.ha-1, with significant responses in the other yield components. Results of the scatterplot in relation to the first three principal components allowed separation of the rootstocks in accordance with production cycles. The mean values for SS and TA characterize this cultivar in the Vale do Submédio São Francisco, with high soluble solids content and low acidity resulting in high SS:TA, as having potential for preparation of high quality juices, regardless of the rootstock used.
DOI: 10.6084/m9.figshare.19944885.v1
title: Agronomic performance of rootstocks on the juice grape ‘BRS Magna’ grown in a Brazilian semi-arid region

description: Abstract Rootstocks are widely used in viticulture worldwide and can affect the yield components and quality of grapes and their juices and wines. The aim of the present study was to determine the effect of the rootstock on the yield performance and physical and physical-chemical traits of ‘BRS Magna’ juice grapes grown in the Submédio do Vale do São Francisco. The study was performed over six production cycles in the period from 2015 to 2019 in the Bebedouro experimental field of Embrapa Semiárido in Petrolina, PE, Brazil. The treatments consisted of seven grapevine rootstocks: IAC 572, IAC 766, IAC 313, Paulsen 1103, SO4, Harmony, and Freedom. The following variables were evaluated: estimated yield, number of grape bunches per plant, branch and leaf fresh matter, bunch weight, bunch length and width, berry weight, total soluble solids content (SS), titratable acidity (TA), and SS to TA ratio (SS:TA). Significant effects of the rootstock were observed in all the variables except for SS. The rootstock ‘IAC 572’ led to increases of up to 61% in the yield of ‘BRS Magna’ grapevines, or 32.78 ton.ha-1, with significant responses in the other yield components. Results of the scatterplot in relation to the first three principal components allowed separation of the rootstocks in accordance with production cycles. The mean values for SS and TA characterize this cultivar in the Vale do Submédio São Francisco, with high soluble solids content and low acidity resulting in high SS:TA, as having potential for preparation of high quality juices, regardless of the rootstock used.
DOI: 10.6084/m9.figshare.19944887
title: Evaluation of multiple rootstocks for ‘Montenegrina’ mandarin in Londrina, Paraná, Brazil

description: Abstract Most commercial orchards of mandarins in Paraná grow ‘Ponkan’ trees predominantly grafted on ‘Rangpur’ lime. The limited genetic diversity of citrus orchards for both scion and rootstock may promote pest and disease outbreaks. The late season ‘Montenegrina’ willowleaf mandarin has high potential for orchard diversification because of its higher productivity and better fruit quality. Therefore, this study assessed the agronomic performance of ‘Montenegrina’ mandarin trees grafted on multiple rootstocks under the edaphoclimatic conditions of Londrina, Paraná, Brazil. The trial was set in a randomized block design using the rootstocks of ‘Rangpur’ lime, ‘Cleopatra’ mandarin, ‘Sunki’ mandarin, ‘Swingle’ citrumelo, and ‘Fepagro C-13’ citrange replicated six times. The ‘Montenegrina’ mandarin trees were assessed for vegetative growth, yield, and fruit quality. The trees had similar size and yield, regardless of the rootstock, and low alternate bearing indices. The fruit quality parameters varied among the rootstocks between the four cropping seasons. Fruits from trees on ‘Rangpur’ and ‘Cleopatra’ exhibited the highest maturation indices, whereas those from ‘Swingle’ and ‘Fepagro C-13’ produced larger fruits with low number of seeds. In general, ‘Montenegrina’ trees can be grown on all evaluated rootstocks without incompatibility and loses in Londrina, Northern Paraná, Brazil.
DOI: 10.6084/m9.figshare.19944887.v1
title: Evaluation of multiple rootstocks for ‘Montenegrina’ mandarin in Londrina, Paraná, Brazil

description: Abstract Most commercial orchards of mandarins in Paraná grow ‘Ponkan’ trees predominantly grafted on ‘Rangpur’ lime. The limited genetic diversity of citrus orchards for both scion and rootstock may promote pest and disease outbreaks. The late season ‘Montenegrina’ willowleaf mandarin has high potential for orchard diversification because of its higher productivity and better fruit quality. Therefore, this study assessed the agronomic performance of ‘Montenegrina’ mandarin trees grafted on multiple rootstocks under the edaphoclimatic conditions of Londrina, Paraná, Brazil. The trial was set in a randomized block design using the rootstocks of ‘Rangpur’ lime, ‘Cleopatra’ mandarin, ‘Sunki’ mandarin, ‘Swingle’ citrumelo, and ‘Fepagro C-13’ citrange replicated six times. The ‘Montenegrina’ mandarin trees were assessed for vegetative growth, yield, and fruit quality. The trees had similar size and yield, regardless of the rootstock, and low alternate bearing indices. The fruit quality parameters varied among the rootstocks between the four cropping seasons. Fruits from trees on ‘Rangpur’ and ‘Cleopatra’ exhibited the highest maturation indices, whereas those from ‘Swingle’ and ‘Fepagro C-13’ produced larger fruits with low number of seeds. In general, ‘Montenegrina’ trees can be grown on all evaluated rootstocks without incompatibility and loses in Londrina, Northern Paraná, Brazil.