cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.19944857
title: Ecophysiology, quality, and mycorrhizal dependency in Musa spp. (cv. Grand naine) seedlings

description: Abstract The use of alternative technologies involving biological processes, with economic and ecological gains, is desirable for both the expansion of Musa spp. farming and the renovation of areas with low yields. Arbuscular mycorrhizal fungi (AMF) can stimulate plant growth, especially by increasing the absorption of phosphorus (P) and other nutrients. This study analyzes the influence of AMF on the growth and physiology of micropropagated Musaspp. plants submitted to doses of P. The experimental design was randomized blocks, in a 5 x 5 factorial arrangement, in which the factors were inoculation with AMF (Glomus clarum, Gigaspora margarita, , Gigaspora albida,Clareoideoglomus etunicatum, and the control without AMF) and five doses of P (0, 50, 100, 200, and 400 mg kg-1), with four replicates. The application of P doses increased growth in micropropagated Musaspp. seedlings, regardless of mycorrhizal inoculation. The highest rates of mycorrhizal colonization occurred at the lowest P doses, and the dose of 50 mg kg-1 P provided better conditions for mycorrhizal formation in all AMF species under study. The symbioses with AMF, as well as the use of P, increased photosynthesis rate, thus favoring the growth, development, and quality of Musa spp. seedlings. Species G. clarum, C. etunicatum, and G. margarita were the most promising for plant growth.
DOI: 10.6084/m9.figshare.19944857.v1
title: Ecophysiology, quality, and mycorrhizal dependency in Musa spp. (cv. Grand naine) seedlings

description: Abstract The use of alternative technologies involving biological processes, with economic and ecological gains, is desirable for both the expansion of Musa spp. farming and the renovation of areas with low yields. Arbuscular mycorrhizal fungi (AMF) can stimulate plant growth, especially by increasing the absorption of phosphorus (P) and other nutrients. This study analyzes the influence of AMF on the growth and physiology of micropropagated Musaspp. plants submitted to doses of P. The experimental design was randomized blocks, in a 5 x 5 factorial arrangement, in which the factors were inoculation with AMF (Glomus clarum, Gigaspora margarita, , Gigaspora albida,Clareoideoglomus etunicatum, and the control without AMF) and five doses of P (0, 50, 100, 200, and 400 mg kg-1), with four replicates. The application of P doses increased growth in micropropagated Musaspp. seedlings, regardless of mycorrhizal inoculation. The highest rates of mycorrhizal colonization occurred at the lowest P doses, and the dose of 50 mg kg-1 P provided better conditions for mycorrhizal formation in all AMF species under study. The symbioses with AMF, as well as the use of P, increased photosynthesis rate, thus favoring the growth, development, and quality of Musa spp. seedlings. Species G. clarum, C. etunicatum, and G. margarita were the most promising for plant growth.
DOI: 10.6084/m9.figshare.19944858
title: Substrate for cupuaçu plantlets and the influence of cow urine as biofertilizer

description: Abstract The use of organic waste as components of substrate to produce fruit plantlets provides alternative materials, easily available and low cost. The aim of this work was to evaluate the effect of substrate and biofertilization with cow urine on the growth of cupuaçu plants (Theobroma grandiflorum) in an organic production system. A factorial experiment was conducted in a completely randomized design with 12 replications including four types of substrates (base mixture; base mixture + coconut fiber; base mixture + cocoa shell and base mixture + sand) with or without biofertilizer application totalizing 96 experimental units. Substrate and biofertilizer influenced the gas exchange and growth of T. grandiflorum plants. The interaction between these two factors significantly affected the dry matter, relative growth rate, net photosynthetic rate, and content of P, K and Mn in the leaves. Each factor, substrate and of cow urine application, independently, influenced the chlorophyll index, the leaf area, diameter, and height of the cupuaçu plants and the contents of N, Ca, Mg, Zn, Fe and Cu in the leaves. The base mixture substrate (composed by soil and organic compost) and fertilization with 1% of cow urine can be indicated to T. grandiflorum plantlets organic production.
DOI: 10.6084/m9.figshare.19944858.v1
title: Substrate for cupuaçu plantlets and the influence of cow urine as biofertilizer

description: Abstract The use of organic waste as components of substrate to produce fruit plantlets provides alternative materials, easily available and low cost. The aim of this work was to evaluate the effect of substrate and biofertilization with cow urine on the growth of cupuaçu plants (Theobroma grandiflorum) in an organic production system. A factorial experiment was conducted in a completely randomized design with 12 replications including four types of substrates (base mixture; base mixture + coconut fiber; base mixture + cocoa shell and base mixture + sand) with or without biofertilizer application totalizing 96 experimental units. Substrate and biofertilizer influenced the gas exchange and growth of T. grandiflorum plants. The interaction between these two factors significantly affected the dry matter, relative growth rate, net photosynthetic rate, and content of P, K and Mn in the leaves. Each factor, substrate and of cow urine application, independently, influenced the chlorophyll index, the leaf area, diameter, and height of the cupuaçu plants and the contents of N, Ca, Mg, Zn, Fe and Cu in the leaves. The base mixture substrate (composed by soil and organic compost) and fertilization with 1% of cow urine can be indicated to T. grandiflorum plantlets organic production.
DOI: 10.6084/m9.figshare.19944861
title: Does molybdenum and cobalt foliar spray mitigate nitrate starvation and ammonium deprivation stress?

description: Abstract Knowledge about the nutritional balance at the initial phenological stage is mandatory to overcome limitations on nutritional availabilities required by the plant species. However, little is elucidated about nitrate (NO3-) and ammonium (NH4+) deprivation stress. Our hypothesis tested is that there are benefits of the foliar application (spray) of molybdenum (Mo) and cobalt (Co) under different availabilities (ionic strength, IS) from the presence of nitric sources (CaNO32-) and absence of ammonium (NH4H2PO4) in root application (hydroponic cultivation) at the initial phenological growth stage. Nutrient supply was carried out with a nutrient solution, which is deprived of NH4+. Treatments were 25%, 50%, and 100% IS, supplied via hydroponic cultivation, combined with the absence/presence of Co/Mo spray. Plants were randomly distributed into 17 blocks (replicates) with 6 treatments conducted in a factorial scheme and data were analyzed by ANOVA and ANCOVA. We observed that Co/Mo spray diminished plant growth discrepancies between treatments at different IS’s. In addition, contents of photosynthetic pigments were higher at 25% IS without Co/Mo spray. Thus, we concluded that Mo and Co spray can alleviate NO3- starvation/NH4+ deprivation stress during the initial growth phenological stages of yellow passion fruits.
DOI: 10.6084/m9.figshare.19944861.v1
title: Does molybdenum and cobalt foliar spray mitigate nitrate starvation and ammonium deprivation stress?

description: Abstract Knowledge about the nutritional balance at the initial phenological stage is mandatory to overcome limitations on nutritional availabilities required by the plant species. However, little is elucidated about nitrate (NO3-) and ammonium (NH4+) deprivation stress. Our hypothesis tested is that there are benefits of the foliar application (spray) of molybdenum (Mo) and cobalt (Co) under different availabilities (ionic strength, IS) from the presence of nitric sources (CaNO32-) and absence of ammonium (NH4H2PO4) in root application (hydroponic cultivation) at the initial phenological growth stage. Nutrient supply was carried out with a nutrient solution, which is deprived of NH4+. Treatments were 25%, 50%, and 100% IS, supplied via hydroponic cultivation, combined with the absence/presence of Co/Mo spray. Plants were randomly distributed into 17 blocks (replicates) with 6 treatments conducted in a factorial scheme and data were analyzed by ANOVA and ANCOVA. We observed that Co/Mo spray diminished plant growth discrepancies between treatments at different IS’s. In addition, contents of photosynthetic pigments were higher at 25% IS without Co/Mo spray. Thus, we concluded that Mo and Co spray can alleviate NO3- starvation/NH4+ deprivation stress during the initial growth phenological stages of yellow passion fruits.
DOI: 10.6084/m9.figshare.19944863
title: Spatial correlation between soil and leaf macronutrients in semiarid Brazilian mango (Mangifera indica L.) fields

description: Abstract Understanding the relationship between the levels of nutrients in the soil and those found in the plant is of fundamental importance for site-specific fertility management in mango (Mangifera indica L.) crop fields. This study aimed to evaluate the spatial distribution of macronutrient contents both in the soil and in the leaf and their correlations in commercial mango orchards under semiarid region conditions and to delimit the management zones using soil and leaf data. The experiment was carried out in three commercial areas in San Francisco Valley, Brazil, cultivated with irrigated mango. Soil samples were collected in 0-0.2 and 0.2-0.4 m depths as well as leaf samples following sample grids. Ca, Mg, K, P, and N contents from soil and leaf samples were determined. Descriptive and geostatistics analyses were performed. Co-kriging was used for the delimitation of management zones. Positive spatial correlations were obtained between soil Ca2+ and leaf Ca contents (R2 = 0.80-0.93), soil K+ and leaf K contents (R2 = 0.35-0.61), and soil Mg2+ and leaf P contents (R2 = 0.51). Negative correlations were observed for soil Mg2+ and leaf Ca contents(R2 = 0.79-0.93) and soil Mg2+ and leaf K contents (R2 = 0.98). The soil 0-0.2 m depth had the greatest influence on mango Ca and K uptake. The negative correlation between soil Mg2+ and leaf Ca shows the competition existing in the plant uptake process. It was possible to delimit specific management zones using co-kriging for the three areas using soil and leaf data.
DOI: 10.6084/m9.figshare.19944863.v1
title: Spatial correlation between soil and leaf macronutrients in semiarid Brazilian mango (Mangifera indica L.) fields

description: Abstract Understanding the relationship between the levels of nutrients in the soil and those found in the plant is of fundamental importance for site-specific fertility management in mango (Mangifera indica L.) crop fields. This study aimed to evaluate the spatial distribution of macronutrient contents both in the soil and in the leaf and their correlations in commercial mango orchards under semiarid region conditions and to delimit the management zones using soil and leaf data. The experiment was carried out in three commercial areas in San Francisco Valley, Brazil, cultivated with irrigated mango. Soil samples were collected in 0-0.2 and 0.2-0.4 m depths as well as leaf samples following sample grids. Ca, Mg, K, P, and N contents from soil and leaf samples were determined. Descriptive and geostatistics analyses were performed. Co-kriging was used for the delimitation of management zones. Positive spatial correlations were obtained between soil Ca2+ and leaf Ca contents (R2 = 0.80-0.93), soil K+ and leaf K contents (R2 = 0.35-0.61), and soil Mg2+ and leaf P contents (R2 = 0.51). Negative correlations were observed for soil Mg2+ and leaf Ca contents(R2 = 0.79-0.93) and soil Mg2+ and leaf K contents (R2 = 0.98). The soil 0-0.2 m depth had the greatest influence on mango Ca and K uptake. The negative correlation between soil Mg2+ and leaf Ca shows the competition existing in the plant uptake process. It was possible to delimit specific management zones using co-kriging for the three areas using soil and leaf data.
DOI: 10.6084/m9.figshare.19944866
title: Analysis of the chemical constituents of Thompson atemoya seed oil

description: Abstract The objective of this study was to characterize the chemical composition in extracts of atemoya (var. Thompson) seed oil by spectrometric methods. The following extraction methods were performed: chemical extraction using hexane, mechanical extraction using a press, and partitioned extraction. The composition of each of the extracts was analysed by gas chromatography-mass spectrometry (GC-MS), and more than 100 compounds were identified. The major constituents of the hexane extraction were (Z)-hexadec-9-enal (49.42%) and triolein (23.28%), and the mechanically obtained extract contained elaidic acid (66.11%) and stearic acid (8.81%). In the partitioned extraction, the hydromethanolic fraction contained dihydroxyacetone (19.16%), 3-deoxy-d-mannoic lactone (16.34%), 5-hydroxymethylfurfural (10.77%), and 3-propanediol, 2-(hydroxymethyl)-2-nitro (9.89%); the hexane fraction contained gamma-sitosterol (31.73%), erucic acid (14.64%), stigmasterol (13.30%) and triolein (10.90%); the chloroform fraction contained gamma-sitosterol (22.11%), vaccenic acid (15.49%), triolein (14.65%) and stigmasterol (10.65%); and the ethyl acetate fraction contained (Z)-icos-9-enoic acid (31.28%), beta-sitosterol (16.29%), pentadecanoic acid (11.53%) and eicosanoic acid (8.01%).
DOI: 10.6084/m9.figshare.19944866.v1
title: Analysis of the chemical constituents of Thompson atemoya seed oil

description: Abstract The objective of this study was to characterize the chemical composition in extracts of atemoya (var. Thompson) seed oil by spectrometric methods. The following extraction methods were performed: chemical extraction using hexane, mechanical extraction using a press, and partitioned extraction. The composition of each of the extracts was analysed by gas chromatography-mass spectrometry (GC-MS), and more than 100 compounds were identified. The major constituents of the hexane extraction were (Z)-hexadec-9-enal (49.42%) and triolein (23.28%), and the mechanically obtained extract contained elaidic acid (66.11%) and stearic acid (8.81%). In the partitioned extraction, the hydromethanolic fraction contained dihydroxyacetone (19.16%), 3-deoxy-d-mannoic lactone (16.34%), 5-hydroxymethylfurfural (10.77%), and 3-propanediol, 2-(hydroxymethyl)-2-nitro (9.89%); the hexane fraction contained gamma-sitosterol (31.73%), erucic acid (14.64%), stigmasterol (13.30%) and triolein (10.90%); the chloroform fraction contained gamma-sitosterol (22.11%), vaccenic acid (15.49%), triolein (14.65%) and stigmasterol (10.65%); and the ethyl acetate fraction contained (Z)-icos-9-enoic acid (31.28%), beta-sitosterol (16.29%), pentadecanoic acid (11.53%) and eicosanoic acid (8.01%).
DOI: 10.6084/m9.figshare.19944867
title: Plum leaf scald: characteristics of the causative agent,symptoms, dissemination, control and prevention

description: Abstract The very slow-growing gram-negative bacterium, Xylella fastidiosa, inhabits the xylem and is vector-borne. It causes several diseases in plants, including plum leaf scald (PLS), which is the main limiting factor over the years for the crop expansion, both in productivity and in cultivation areas in Brazil. There is little information about the management and control of the disease. Brazilian breeding programs of plum trees have launched few resistant cultivars. The aim of this work was to carry out a systematic review with current information regarding PLS, characteristics of the causative agent, symptoms, transmission/dissemination, control and prevention. The use of certified propagation material, free from bacteria and the elimination of infected plants are the main measures used in Brazil. The vast majority of commercial cultivars are highly susceptible to bacteria and only few cultivars of interest have any resistance. In 2017 the Agricultural Research and Rural Extension Company of Santa Catarina launched the ‘Zafira’ plum cultivar, the first cultivar for commercial purposes that is not naturally infected; however, it was observed that the transmission of the bacteria occurs by grafting. The Institute of Rural Development of Paraná IAPAR-EMATER evaluated different plum crosses and concluded that the ‘PR-1095’ genotype was the most resistant and did not show any foliar symptoms of the disease. However, the PCR test revealed the presence of the bacteria, indicating that the genotype is probably tolerant. In contrast, ‘PR 1142’, ‘PR 1149’ and ‘PR 1260’ genotypes do not show symptoms or the presence of the bacteria by PCR, resulting in resistance to the disease. These genotypes have not been released, and further studies are still needed.
DOI: 10.6084/m9.figshare.19944867.v1
title: Plum leaf scald: characteristics of the causative agent,symptoms, dissemination, control and prevention

description: Abstract The very slow-growing gram-negative bacterium, Xylella fastidiosa, inhabits the xylem and is vector-borne. It causes several diseases in plants, including plum leaf scald (PLS), which is the main limiting factor over the years for the crop expansion, both in productivity and in cultivation areas in Brazil. There is little information about the management and control of the disease. Brazilian breeding programs of plum trees have launched few resistant cultivars. The aim of this work was to carry out a systematic review with current information regarding PLS, characteristics of the causative agent, symptoms, transmission/dissemination, control and prevention. The use of certified propagation material, free from bacteria and the elimination of infected plants are the main measures used in Brazil. The vast majority of commercial cultivars are highly susceptible to bacteria and only few cultivars of interest have any resistance. In 2017 the Agricultural Research and Rural Extension Company of Santa Catarina launched the ‘Zafira’ plum cultivar, the first cultivar for commercial purposes that is not naturally infected; however, it was observed that the transmission of the bacteria occurs by grafting. The Institute of Rural Development of Paraná IAPAR-EMATER evaluated different plum crosses and concluded that the ‘PR-1095’ genotype was the most resistant and did not show any foliar symptoms of the disease. However, the PCR test revealed the presence of the bacteria, indicating that the genotype is probably tolerant. In contrast, ‘PR 1142’, ‘PR 1149’ and ‘PR 1260’ genotypes do not show symptoms or the presence of the bacteria by PCR, resulting in resistance to the disease. These genotypes have not been released, and further studies are still needed.
DOI: 10.6084/m9.figshare.19944872
title: Physicochemical and antioxidant characterization of Andean blackberry with and without prickles cultivated in Risaralda, Colombia

description: Abstract Approximately 55% of the Rubus glaucus Benth (Andean blackberry) produced in Colombia is sold fresh and 10% is used in agroindustry. There are two types of cultivars for this species: Andean blackberries with prickles and ones without prickles. The investigations carried out in the Department of Risaralda are focused on finding the best genetic materials; however, studies on the bioprospecting that can generate an added value to these fruits are lacking. Therefore, soil fertility analysis, physicochemical characterization, and evaluation of the total phenolic content and antioxidant activity of Andean blackberries with and without prickles were carried out. The parameters evaluated for soil analysis were pH, organic matter, minor elements, phosphorus, nitrogen, aluminum, and texture, and the parameters evaluated for physicochemical characterization were titratable acidity, ash, dietary fiber, fat, moisture, maturity index, protein, and soluble solids. The total phenolic content and antioxidant activity were evaluated with the Folin–Ciocalteu and DPPH methods, respectively. Statistical analysis showed significant differences in the content of fat, proteins, total soluble solids, titratable acidity, acidity index, and ash between the materials with and without prickles. The ash content and soluble solids are highlighted: they presented differences by study municipality, The ash content and soluble solids are highlighted; in addition, a high content of phenolic compounds was observed in fruits from plants without prickles. The diagnosis of blackberry crops by the materials planted and place of cultivation in the Department of Risaralda showed that the materials without prickles are more widely distributed in the department due to their ease of handling. According to the results of the soil analysis, most Castilla blackberry crops in the Santa Rosa, Santuario, and Pereira municipalities are within the recommended parameters for blackberry production at the national level.
DOI: 10.6084/m9.figshare.19944872.v1
title: Physicochemical and antioxidant characterization of Andean blackberry with and without prickles cultivated in Risaralda, Colombia

description: Abstract Approximately 55% of the Rubus glaucus Benth (Andean blackberry) produced in Colombia is sold fresh and 10% is used in agroindustry. There are two types of cultivars for this species: Andean blackberries with prickles and ones without prickles. The investigations carried out in the Department of Risaralda are focused on finding the best genetic materials; however, studies on the bioprospecting that can generate an added value to these fruits are lacking. Therefore, soil fertility analysis, physicochemical characterization, and evaluation of the total phenolic content and antioxidant activity of Andean blackberries with and without prickles were carried out. The parameters evaluated for soil analysis were pH, organic matter, minor elements, phosphorus, nitrogen, aluminum, and texture, and the parameters evaluated for physicochemical characterization were titratable acidity, ash, dietary fiber, fat, moisture, maturity index, protein, and soluble solids. The total phenolic content and antioxidant activity were evaluated with the Folin–Ciocalteu and DPPH methods, respectively. Statistical analysis showed significant differences in the content of fat, proteins, total soluble solids, titratable acidity, acidity index, and ash between the materials with and without prickles. The ash content and soluble solids are highlighted: they presented differences by study municipality, The ash content and soluble solids are highlighted; in addition, a high content of phenolic compounds was observed in fruits from plants without prickles. The diagnosis of blackberry crops by the materials planted and place of cultivation in the Department of Risaralda showed that the materials without prickles are more widely distributed in the department due to their ease of handling. According to the results of the soil analysis, most Castilla blackberry crops in the Santa Rosa, Santuario, and Pereira municipalities are within the recommended parameters for blackberry production at the national level.