Pub Date : 2023-01-01DOI: 10.1590/0100-29452023965
Bruno Carra, Danilo Cabrera, Pablo Rodriguez, Maximiliano Dini
Abstract Feathering in apple nursery trees is a critical operation used to increase the quality of planting material. Plant growth regulators (PGR) could be used to form feathers in apple nursery trees. The main goal was to study the impact of different PGR and concentrations on feathering promotion in different nursery apple trees. The study had three different trials where the specific aims were to study the impact of: i) different rates of 6-benzyladenine (6-BA); ii) different PGR (6-BA and 6-BA + GA4+7) on feathering promotion, and; iii) 6-BA on feathering promotion and prohexadione calcium (P-Ca) on trunk thickening under greenhouse conditions. Both 6-BA and 6-BA + GA4+7 were effective inducing feathering in the different cultivars tested. 6-BA reduced final young plants grafted height only in one out of three seasons, reducing an average of 15 and 10 cm on ‘Early Red One’ and ‘Fuji’ apple nursery trees, respectively. P-Ca reduced tree growth rate 4-5 weeks after sprayed, but the difference did not persist until the end of the season. Trunk diameter was not affected by the different plant growth regulators and concentrations tested. 6-BA alone or in combination with GA4+7 is an efficient tool to feathering formation in different nursery apple cultivars and conditions.
{"title":"Improving feathering in different nursery apple trees by plant growth regulators","authors":"Bruno Carra, Danilo Cabrera, Pablo Rodriguez, Maximiliano Dini","doi":"10.1590/0100-29452023965","DOIUrl":"https://doi.org/10.1590/0100-29452023965","url":null,"abstract":"Abstract Feathering in apple nursery trees is a critical operation used to increase the quality of planting material. Plant growth regulators (PGR) could be used to form feathers in apple nursery trees. The main goal was to study the impact of different PGR and concentrations on feathering promotion in different nursery apple trees. The study had three different trials where the specific aims were to study the impact of: i) different rates of 6-benzyladenine (6-BA); ii) different PGR (6-BA and 6-BA + GA4+7) on feathering promotion, and; iii) 6-BA on feathering promotion and prohexadione calcium (P-Ca) on trunk thickening under greenhouse conditions. Both 6-BA and 6-BA + GA4+7 were effective inducing feathering in the different cultivars tested. 6-BA reduced final young plants grafted height only in one out of three seasons, reducing an average of 15 and 10 cm on ‘Early Red One’ and ‘Fuji’ apple nursery trees, respectively. P-Ca reduced tree growth rate 4-5 weeks after sprayed, but the difference did not persist until the end of the season. Trunk diameter was not affected by the different plant growth regulators and concentrations tested. 6-BA alone or in combination with GA4+7 is an efficient tool to feathering formation in different nursery apple cultivars and conditions.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136304867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1590/0100-29452023551
José Carlos Lopes, Patrick Alves de Oliveira, Rodrigo Sobreira Alexandre, Aressa Oliveira Correia, Guilherme Bravim Canal, Paula Aparecida Muniz de Lima
Abstract The presence of salts in the soil solution reduces the osmotic potential, hindering water absorption by roots. However, plants have defense mechanisms against stresses, releasing signaling molecules, in which nitric oxide plays an important role in the abiotic stress. This study aimed to assess the physiological quality of seeds from Passiflora mucronata Lam. genotypes pre-conditioned with the nitric oxide donor Tadalafil kept under salt stress. Seeds from nine P. mucronata genotypes evaluated under four nitric oxide donor Tadalafil concentrations : 0.0, 1.5, 2.5, 5.0, 7.5, 10.0 and 12.5 mg L-1, applied by soaking seeds for two hours, followed by washing in running water and germination in germitest® paper moistened with NaCl at -1.2 MPa. The experiment was carried out in a completely randomized design, with four replicates of 25 seeds. The nitric oxide donor Tadalafil, at concentrations of 1.5 and 2.5 mg L-1, increased the germination speed, shoot length, and dry mass. Pre-conditioning of seeds with the nitric oxide donor Tadalafil at concentrations of 5.0, 7.5, 10.0, and 12.5 mg L-1 determined the death of seeds. Seeds from genotype G3, pre-conditioned with Tadalafil at concentrations of 1.5 and 2.5 mg L-1, presented higher germination, germination speed index, mean germination time, shoot length, root length and dry matter values. Genotypes presented distinct phenotypic responses, providing intraspecific divergence.
{"title":"Physiological quality of seeds from Passiflora mucronata Lam. genotypes with nitric oxide donor and salt stress","authors":"José Carlos Lopes, Patrick Alves de Oliveira, Rodrigo Sobreira Alexandre, Aressa Oliveira Correia, Guilherme Bravim Canal, Paula Aparecida Muniz de Lima","doi":"10.1590/0100-29452023551","DOIUrl":"https://doi.org/10.1590/0100-29452023551","url":null,"abstract":"Abstract The presence of salts in the soil solution reduces the osmotic potential, hindering water absorption by roots. However, plants have defense mechanisms against stresses, releasing signaling molecules, in which nitric oxide plays an important role in the abiotic stress. This study aimed to assess the physiological quality of seeds from Passiflora mucronata Lam. genotypes pre-conditioned with the nitric oxide donor Tadalafil kept under salt stress. Seeds from nine P. mucronata genotypes evaluated under four nitric oxide donor Tadalafil concentrations : 0.0, 1.5, 2.5, 5.0, 7.5, 10.0 and 12.5 mg L-1, applied by soaking seeds for two hours, followed by washing in running water and germination in germitest® paper moistened with NaCl at -1.2 MPa. The experiment was carried out in a completely randomized design, with four replicates of 25 seeds. The nitric oxide donor Tadalafil, at concentrations of 1.5 and 2.5 mg L-1, increased the germination speed, shoot length, and dry mass. Pre-conditioning of seeds with the nitric oxide donor Tadalafil at concentrations of 5.0, 7.5, 10.0, and 12.5 mg L-1 determined the death of seeds. Seeds from genotype G3, pre-conditioned with Tadalafil at concentrations of 1.5 and 2.5 mg L-1, presented higher germination, germination speed index, mean germination time, shoot length, root length and dry matter values. Genotypes presented distinct phenotypic responses, providing intraspecific divergence.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135261038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1590/0100-29452023607
Iran Alia-Tejacal, Yanik Ixchel Maldonado-Astudillo, Javier Jiménez-Hernández, Carlos Alberto Núñez-Colín
Abstract The fruit of Spondias purpurea L. is well accepted from different regions of Latin America. In many cases, however, their postharvest quality and physiological behavior have not been adequately studied. These aspects were therefore examined in five commercially grown ecotypes from Mexico. To this end, samples of green-, half ripe-, and ripe-harvested fruit were stored at 25 °C (60 % RH) for 5 d – with several indicators of quality and postharvest behavior periodically assessed. Four out of the five ecotypes examined produced drupes that were large (> 15 g in ‘Costeña’, ‘Amarilla’, ‘Morada’, and ‘Costilluda’). On the other hand, large differences in weight loss (5–21 %) and in the total soluble solids of ripe fruit (9–17 %) were apparent, as was a 9.3 % increase in the weight of drupes when they transitioned from the green to the half ripe stage on trees, suggesting that harvesting should take place during this period. Increments in the production of CO2 and ethylene were both associated with a shortening of postharvest life. Based strictly on firmness, the ecotypes most likely to resist postharvest handling were ‘Morada’ and ‘Conservera’. Best global quality on the other hand, belonged to ‘Amarilla’ and ‘Costeña’
{"title":"Postharvest quality and physiological changes in five ecotypes of Spondias purpurea L. harvested at three distinct maturity stages","authors":"Iran Alia-Tejacal, Yanik Ixchel Maldonado-Astudillo, Javier Jiménez-Hernández, Carlos Alberto Núñez-Colín","doi":"10.1590/0100-29452023607","DOIUrl":"https://doi.org/10.1590/0100-29452023607","url":null,"abstract":"Abstract The fruit of Spondias purpurea L. is well accepted from different regions of Latin America. In many cases, however, their postharvest quality and physiological behavior have not been adequately studied. These aspects were therefore examined in five commercially grown ecotypes from Mexico. To this end, samples of green-, half ripe-, and ripe-harvested fruit were stored at 25 °C (60 % RH) for 5 d – with several indicators of quality and postharvest behavior periodically assessed. Four out of the five ecotypes examined produced drupes that were large (> 15 g in ‘Costeña’, ‘Amarilla’, ‘Morada’, and ‘Costilluda’). On the other hand, large differences in weight loss (5–21 %) and in the total soluble solids of ripe fruit (9–17 %) were apparent, as was a 9.3 % increase in the weight of drupes when they transitioned from the green to the half ripe stage on trees, suggesting that harvesting should take place during this period. Increments in the production of CO2 and ethylene were both associated with a shortening of postharvest life. Based strictly on firmness, the ecotypes most likely to resist postharvest handling were ‘Morada’ and ‘Conservera’. Best global quality on the other hand, belonged to ‘Amarilla’ and ‘Costeña’","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135261259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1590/0100-29452023000
Javier Giovanni Álvarez-Herrera, Jacqueline Tovar-Escobar, Hernán David Ruiz
Abstract Feijoa is a promising crop in Colombia with high export potential. However, its postharvest shelf-life is short since it is a climacteric fruit with high respiration rates and susceptibility to fruit flies. Techniques such as refrigeration and the use of 1-methylcyclopropene (1-MCP) increase the post-harvest period and prolong fruit quality. The objective of this research was to evaluate the effect of different storage temperatures and 1-MCP doses on postharvest feijoa fruits. A completely randomized design with a 2x4 factorial arrangement was used, where the first factor was temperature (4 and 16 °C), and the second factor was the 1-MCP dose (0, 30, 60 and 90 µg L-1), for a total of eight treatments. The treatments at 4 °C presented lower values for mass loss and respiratory rate, while luminosity, chromaticity, soluble solids and antioxidant activity showed the highest values. The lowest 1-MCP doses at 4 °C had the highest values of titratable acidity and endocarp tone; on the contrary, the highest doses at 4 and 16 °C presented the highest values of phenolic compounds. The refrigerated feijoa fruits had a shelf-life between 36 and 42 days, while those stored at 16 °C only had commercial quality for 14 days, highlighting the importance of cold storage.
{"title":"Postharvest behavior of feijoa fruit (Acca sellowiana Berg) subjected to different 1-MCP doses and storage temperatures","authors":"Javier Giovanni Álvarez-Herrera, Jacqueline Tovar-Escobar, Hernán David Ruiz","doi":"10.1590/0100-29452023000","DOIUrl":"https://doi.org/10.1590/0100-29452023000","url":null,"abstract":"Abstract Feijoa is a promising crop in Colombia with high export potential. However, its postharvest shelf-life is short since it is a climacteric fruit with high respiration rates and susceptibility to fruit flies. Techniques such as refrigeration and the use of 1-methylcyclopropene (1-MCP) increase the post-harvest period and prolong fruit quality. The objective of this research was to evaluate the effect of different storage temperatures and 1-MCP doses on postharvest feijoa fruits. A completely randomized design with a 2x4 factorial arrangement was used, where the first factor was temperature (4 and 16 °C), and the second factor was the 1-MCP dose (0, 30, 60 and 90 µg L-1), for a total of eight treatments. The treatments at 4 °C presented lower values for mass loss and respiratory rate, while luminosity, chromaticity, soluble solids and antioxidant activity showed the highest values. The lowest 1-MCP doses at 4 °C had the highest values of titratable acidity and endocarp tone; on the contrary, the highest doses at 4 and 16 °C presented the highest values of phenolic compounds. The refrigerated feijoa fruits had a shelf-life between 36 and 42 days, while those stored at 16 °C only had commercial quality for 14 days, highlighting the importance of cold storage.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135316676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1590/0100-29452023555
Andréa Madalena Maciel Guedes, Allan Eduardo Wilhelm, José Inácio Lacerda Moura, Ricardo Lopes, Adelia Ferreira de Faria-Machado, Rosemar Antoniassi
Abstract BRS Manicoré cultivar is an interspecific hybrid between Elaeis oleifera and Elaeis guineensis(ISH OxG). It has shown high yield potential and genetic resistance to phytosanitary problems in cultivation in Brazil. Studies have indicated differences in the composition of ISH OxG and palm oils, as well as the influence of genotype and environment on palm oil characteristics. The aim of this study was to assess the distribution of fatty acids, carotenoids, and tocochromanols in the olein and stearin fractions of the oil produced by the ISH OxG cultivated in municipality of Una, state of Bahia, Brazil by liquid and gas chromatography. There were significant differences for fatty acids, carotenoids and total tocochromanols between olein and stearin (p<0.05). The olein was richer in oleic acid (59% vs 57%), while stearin was higher in saturated fatty acids (31% vs 29%), alpha and beta-carotene (232 vs 213 mg/Kg, and 347 vs 299 mg/Kg, respectively), alpha-tocotrienol (136 vs 90 mg/Kg), and alpha-tocopherol (52 vs 32 mg/Kg). No difference was observed for gamma-tocotrienol (598 – 450 mg/kg) and delta-tocotrienol; nonetheless, the high content of the former in both fractions was notable. The ISH OxG oil fractions showed distinct patterns, indicating different applications.
{"title":"Bioactive compounds of fractionated palm oil with a higher content of oleic acid","authors":"Andréa Madalena Maciel Guedes, Allan Eduardo Wilhelm, José Inácio Lacerda Moura, Ricardo Lopes, Adelia Ferreira de Faria-Machado, Rosemar Antoniassi","doi":"10.1590/0100-29452023555","DOIUrl":"https://doi.org/10.1590/0100-29452023555","url":null,"abstract":"Abstract BRS Manicoré cultivar is an interspecific hybrid between Elaeis oleifera and Elaeis guineensis(ISH OxG). It has shown high yield potential and genetic resistance to phytosanitary problems in cultivation in Brazil. Studies have indicated differences in the composition of ISH OxG and palm oils, as well as the influence of genotype and environment on palm oil characteristics. The aim of this study was to assess the distribution of fatty acids, carotenoids, and tocochromanols in the olein and stearin fractions of the oil produced by the ISH OxG cultivated in municipality of Una, state of Bahia, Brazil by liquid and gas chromatography. There were significant differences for fatty acids, carotenoids and total tocochromanols between olein and stearin (p<0.05). The olein was richer in oleic acid (59% vs 57%), while stearin was higher in saturated fatty acids (31% vs 29%), alpha and beta-carotene (232 vs 213 mg/Kg, and 347 vs 299 mg/Kg, respectively), alpha-tocotrienol (136 vs 90 mg/Kg), and alpha-tocopherol (52 vs 32 mg/Kg). No difference was observed for gamma-tocotrienol (598 – 450 mg/kg) and delta-tocotrienol; nonetheless, the high content of the former in both fractions was notable. The ISH OxG oil fractions showed distinct patterns, indicating different applications.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135262191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1590/0100-29452023022
Érica Frazão Pereira De Lorenzi, Betina Emerick Pereira, Victor de Freitas Michels, Henrique Belmonte Petry, Jorge Anderson Guimarães, Birgit Harter-Marques
Abstract The objective of this work was to evaluate the infestation of the flower-bud-fly in different sizes of flower buds and to relate the infestation with the plant phenology and weather variables. In the 2017/18 and 2018/19 seasons, flower buds of plants were collected to obtain pupae, adults, and parasitoids in a commercial orchard of sour passion fruit, in Sombrio, state of Santa Catarina. The level of infestation, pupal viability, and percentage of parasitism were calculated. Every fortnight, the vegetative and reproductive structures of 12 orchard plants (0.25 m² per plant), randomly distributed, were monitored, as soon as they reached the height of the trellis. Three population peaks of the floral bud fly were observed in the seasons, which preferred to oviposit in buds larger than 2 cm. The critical period for pest monitoring and control occurred between November and December. The average temperature and precipitation were the main factors that influenced the production of sour passion fruit. The average temperature was correlated with the emission of flower buds and the emergence of lonqueids. D. inedulis was the predominant species in flower buds, in which Dasiopssp.1, Dasiops sp. 2, and Neosilba certa were reported for the first time. It was also the first report of Utetes anastrephae and Aganaspis pelleranoias parasitoids of larvae-pupae of the flower bud fly of the sour passion fruit tree in Santa Catarina.
{"title":"Flower bud fly infestation and its relationship with the morphological and phenological aspects of sour passion fruit (Passiflora edulis) in southern Santa Catarina state","authors":"Érica Frazão Pereira De Lorenzi, Betina Emerick Pereira, Victor de Freitas Michels, Henrique Belmonte Petry, Jorge Anderson Guimarães, Birgit Harter-Marques","doi":"10.1590/0100-29452023022","DOIUrl":"https://doi.org/10.1590/0100-29452023022","url":null,"abstract":"Abstract The objective of this work was to evaluate the infestation of the flower-bud-fly in different sizes of flower buds and to relate the infestation with the plant phenology and weather variables. In the 2017/18 and 2018/19 seasons, flower buds of plants were collected to obtain pupae, adults, and parasitoids in a commercial orchard of sour passion fruit, in Sombrio, state of Santa Catarina. The level of infestation, pupal viability, and percentage of parasitism were calculated. Every fortnight, the vegetative and reproductive structures of 12 orchard plants (0.25 m² per plant), randomly distributed, were monitored, as soon as they reached the height of the trellis. Three population peaks of the floral bud fly were observed in the seasons, which preferred to oviposit in buds larger than 2 cm. The critical period for pest monitoring and control occurred between November and December. The average temperature and precipitation were the main factors that influenced the production of sour passion fruit. The average temperature was correlated with the emission of flower buds and the emergence of lonqueids. D. inedulis was the predominant species in flower buds, in which Dasiopssp.1, Dasiops sp. 2, and Neosilba certa were reported for the first time. It was also the first report of Utetes anastrephae and Aganaspis pelleranoias parasitoids of larvae-pupae of the flower bud fly of the sour passion fruit tree in Santa Catarina.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135261011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Stinking passionflower (Passiflora foetida L.) is a medicinal species that may be used as rootstock to sour passion fruit (Passiflora edulis) against wilting and collar rot caused by Fusarium spp. However, as it is a host of the reniform nematode (Rotylenchulus reniformis), the cultivation of this species may be constrained in crop fields infested by this nematode. The objective of this study was to evaluate the effect of R. reniformis on the growth of stinking passion flower. The length of plants inoculated with the highest dose of each trial (152,900 and 78,900 specimens per plant corresponding to 402.4 and 207.6 specimens / cm3 of soil) was shorter than in plants not inoculated with the reniform nematode. Therefore, R. reniformis should be considered a pathogen of stinking passionflower and be properly managed.
{"title":"Pathogenicity of reniform nematode (Rotylenchulus reniformis) on the stinking passionflower (Passiflora foetida)","authors":"Bruno Scentinela Jacintho Paes, Mário Massayuki Inomoto, Aline Mayara Gonçalves Barros Silva","doi":"10.1590/0100-29452023731","DOIUrl":"https://doi.org/10.1590/0100-29452023731","url":null,"abstract":"Abstract Stinking passionflower (Passiflora foetida L.) is a medicinal species that may be used as rootstock to sour passion fruit (Passiflora edulis) against wilting and collar rot caused by Fusarium spp. However, as it is a host of the reniform nematode (Rotylenchulus reniformis), the cultivation of this species may be constrained in crop fields infested by this nematode. The objective of this study was to evaluate the effect of R. reniformis on the growth of stinking passion flower. The length of plants inoculated with the highest dose of each trial (152,900 and 78,900 specimens per plant corresponding to 402.4 and 207.6 specimens / cm3 of soil) was shorter than in plants not inoculated with the reniform nematode. Therefore, R. reniformis should be considered a pathogen of stinking passionflower and be properly managed.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135262183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1590/0100-29452023538
Yusuf CELIK
Abstract As a result of excessive use of chemical fertilizers in greenhouses, the yield and quality of the crop decreases over time. In the study carried out in two different locations; Arbuscular Mycorrhizal Fascicles (AMF), vermicompost (VC), seaweed (DY), bat manure (YG) and 30% reduced chemical fertilizer (KG) were applied. In the study, fruit length and diameter, fruit weight, fruit meat and Shell thickness, leaf fresh and dry weight, pH and total dry matter dissolved in water were measured. According to the measurements made in both greenhouses; best results in terms of fruit length, fruit diameter, fruit weight, fruit number; Taken from YG+AMF+KG application. YG+AMF+7/10 KG application, where the best efficiency was obtained in Greenhouse-A conditions, showed an increase of 44.8% compared to the control application and 10.4% compared to the KG application. YG+AMF+7/10 KG treatment, in which the best efficiency was achieved in the effect of applications on fruit weight in Greenhouse-B conditions, showed an increase of 41.3% compared to the 12.5% control application compared to the KG. In conclusion; It was determined that mycorrhizal inoculation, some organic fertilizers and 30% reduced chemical fertilizer combinations applied in melon cultivation increased the yield in both lotions more than the full dose chemical fertilizer.
{"title":"The effects of different organic fertilizers and reduced doses of chemical fertilizer applications on yield and quality traits in greenhouse melon cultivation","authors":"Yusuf CELIK","doi":"10.1590/0100-29452023538","DOIUrl":"https://doi.org/10.1590/0100-29452023538","url":null,"abstract":"Abstract As a result of excessive use of chemical fertilizers in greenhouses, the yield and quality of the crop decreases over time. In the study carried out in two different locations; Arbuscular Mycorrhizal Fascicles (AMF), vermicompost (VC), seaweed (DY), bat manure (YG) and 30% reduced chemical fertilizer (KG) were applied. In the study, fruit length and diameter, fruit weight, fruit meat and Shell thickness, leaf fresh and dry weight, pH and total dry matter dissolved in water were measured. According to the measurements made in both greenhouses; best results in terms of fruit length, fruit diameter, fruit weight, fruit number; Taken from YG+AMF+KG application. YG+AMF+7/10 KG application, where the best efficiency was obtained in Greenhouse-A conditions, showed an increase of 44.8% compared to the control application and 10.4% compared to the KG application. YG+AMF+7/10 KG treatment, in which the best efficiency was achieved in the effect of applications on fruit weight in Greenhouse-B conditions, showed an increase of 41.3% compared to the 12.5% control application compared to the KG. In conclusion; It was determined that mycorrhizal inoculation, some organic fertilizers and 30% reduced chemical fertilizer combinations applied in melon cultivation increased the yield in both lotions more than the full dose chemical fertilizer.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136304303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1590/0100-29452023889
Lukas Allayn Diniz Corrêa, Antônia Alice Costa Rodrigues, Larisse Raquel Carvalho Dias, Erlen Keila Candido e Silva, Odair dos Santos Monteiro, Leonardo de Jesus Machado Gois de Oliveira
Abstract Essential oils have been widely studied because they are natural sources of substances that have antimicrobial properties. In fruit growing, especially in mango crop, anthracnose (Colletotrichum gloeosporioides) is considered the main disease because it causes series of damages in the fruit production chain and, in this sense, essential oils can be an option in this disease control. The objective of this study was to evaluate the effect of essential oils obtained from the leaves of Chá-de-moça (Pectis brevipedunculata) and Melosa (Dizygostemon riparius) in the in vitro and in vivo control of the C. gloeosporioides fungus, in seedlings and mango fruits. The in vitro bioassays were performed by testing the effect of different concentrations of essential oils (0, 1, 2, 3 and 4 µl/mL) on the reduction of mycelial growth of the C. gloeosporioides fungus. Additionally, the anthracnose control in mango seedlings (Tommy Atkins, Constantina, Comum and Rosa cultivars) was evaluated by foliar application of essential oils at 4 µl/mL concentration. Disease control in fruits of the same mango cultivars was evaluated at 3 µl/mL concentration of essential oils. The evaluation was carried out by measuring the average diameter of the colonies, for the in vitro treatment, and the lesions for the in vivo treatments, in two diametrically opposite directions. There was a decrease in the fungus mycelial growth in all tested concentrations. There was a decrease in the disease severity from the sixth day after the oils application in Tommy Atkins cultivar seedlings, when treated with both essential oils at 4 µl/mL concentration. As for preventive treatments with fruits, it was observed that all cultivars achieved a reduction in severity from 54.83% at 3 µl/mL concentration with the use of both essential oils. Given the results obtained, it was observed that the essential oils P. brevipedunculata and D. riparius can be a viable alternative in the anthracnose control in mango culture.
{"title":"Antifungal potential of essential oils from Pectis brevipedunculata and Dizygostemon riparius in anthracnose control in mango","authors":"Lukas Allayn Diniz Corrêa, Antônia Alice Costa Rodrigues, Larisse Raquel Carvalho Dias, Erlen Keila Candido e Silva, Odair dos Santos Monteiro, Leonardo de Jesus Machado Gois de Oliveira","doi":"10.1590/0100-29452023889","DOIUrl":"https://doi.org/10.1590/0100-29452023889","url":null,"abstract":"Abstract Essential oils have been widely studied because they are natural sources of substances that have antimicrobial properties. In fruit growing, especially in mango crop, anthracnose (Colletotrichum gloeosporioides) is considered the main disease because it causes series of damages in the fruit production chain and, in this sense, essential oils can be an option in this disease control. The objective of this study was to evaluate the effect of essential oils obtained from the leaves of Chá-de-moça (Pectis brevipedunculata) and Melosa (Dizygostemon riparius) in the in vitro and in vivo control of the C. gloeosporioides fungus, in seedlings and mango fruits. The in vitro bioassays were performed by testing the effect of different concentrations of essential oils (0, 1, 2, 3 and 4 µl/mL) on the reduction of mycelial growth of the C. gloeosporioides fungus. Additionally, the anthracnose control in mango seedlings (Tommy Atkins, Constantina, Comum and Rosa cultivars) was evaluated by foliar application of essential oils at 4 µl/mL concentration. Disease control in fruits of the same mango cultivars was evaluated at 3 µl/mL concentration of essential oils. The evaluation was carried out by measuring the average diameter of the colonies, for the in vitro treatment, and the lesions for the in vivo treatments, in two diametrically opposite directions. There was a decrease in the fungus mycelial growth in all tested concentrations. There was a decrease in the disease severity from the sixth day after the oils application in Tommy Atkins cultivar seedlings, when treated with both essential oils at 4 µl/mL concentration. As for preventive treatments with fruits, it was observed that all cultivars achieved a reduction in severity from 54.83% at 3 µl/mL concentration with the use of both essential oils. Given the results obtained, it was observed that the essential oils P. brevipedunculata and D. riparius can be a viable alternative in the anthracnose control in mango culture.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136305077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-07DOI: 10.1007/s10096-022-04439-y
Fabienne Walser, Julia Prinz, Stefan Rahm, Patrick O Zingg, Stefano Mancini, Frank Imkamp, Reinhard Zbinden, Yvonne Achermann
Finegoldia magna is an anaerobic gram-positive bacterium that can cause invasive human infections. Recently, a 52-year-old patient suffering from a periprosthetic joint infection (PJI) due to F. magna was treated with cefepime on hemodialysis; however, treatment failed due to relapse caused by antibiotic-resistant strains. Reports on the antimicrobial susceptibility of F. magna clinical isolates are rare. We collected 57 clinical F. magna isolates from Zurich, Switzerland, between September 2019 and July 2020 and tested their antimicrobial susceptibility to investigate the local resistance pattern. Antimicrobial susceptibility testing (AST) was evaluated for nine antibiotics (benzylpenicillin, amoxicillin/clavulanic acid, cefuroxime, cefepime, levofloxacin, rifampicin, metronidazole, doxycycline, and clindamycin) by E-test according to CLSI guidelines. All F. magna strains were susceptible to benzylpenicillin, amoxicillin/clavulanic acid, and metronidazole, while 75% to clindamycin. F. magna isolates showed MIC values lower than species-unrelated breakpoints for cefuroxime, levofloxacin, and cefepime in 93%, 56%, and 32% of the cases, respectively. MIC values for rifampicin and doxycycline were lower than locally determined ECOFFs in 98% and 72% of the cases, respectively. In summary, we recommend the use of benzylpenicillin, amoxicillin/clavulanic acid, or metronidazole without prior AST as first-line treatment option against F. magna PJI infections. If cefuroxime, cefepime, levofloxacin, rifampicin, doxycycline, or clindamycin are used, AST is mandatory.
magna 细金葡菌（Finegoldia magna）是一种厌氧革兰阳性细菌，可引起人类侵入性感染。最近，一名 52 岁的患者因麦地那龙线虫引起假体周围关节感染（PJI），在血液透析过程中接受了头孢吡肟治疗，但由于抗生素耐药菌株导致复发，治疗失败。有关巨口蝇临床分离株抗菌药敏感性的报道非常罕见。我们在 2019 年 9 月至 2020 年 7 月期间从瑞士苏黎世收集了 57 株 magna 真菌临床分离株，并对其进行了抗菌药敏感性测试，以研究当地的耐药性模式。根据 CLSI 指南，我们通过 E 测试评估了九种抗生素（苄青霉素、阿莫西林/克拉维酸、头孢呋辛、头孢吡肟、左氧氟沙星、利福平、甲硝唑、强力霉素和林可霉素）的抗菌药敏感性测试（AST）。所有蝇蛆菌株都对苄青霉素、阿莫西林/克拉维酸和甲硝唑敏感，75%对克林霉素敏感。对于头孢呋辛、左氧氟沙星和头孢吡肟，分别有 93%、56% 和 32% 的 magna 分离物的 MIC 值低于与物种无关的断点。利福平和多西环素的 MIC 值分别有 98% 和 72% 低于当地确定的 ECOFF。总之，我们建议将氨苄青霉素、阿莫西林/克拉维酸或甲硝唑作为治疗 magna 弗氏杆菌 PJI 感染的一线药物，而无需先进行 AST 治疗。如果使用头孢呋辛、头孢吡肟、左氧氟沙星、利福平、强力霉素或克林霉素，则必须进行 AST 治疗。
{"title":"Antimicrobial susceptibility testing is crucial when treating Finegoldia magna infections.","authors":"Fabienne Walser, Julia Prinz, Stefan Rahm, Patrick O Zingg, Stefano Mancini, Frank Imkamp, Reinhard Zbinden, Yvonne Achermann","doi":"10.1007/s10096-022-04439-y","DOIUrl":"10.1007/s10096-022-04439-y","url":null,"abstract":"<p><p>Finegoldia magna is an anaerobic gram-positive bacterium that can cause invasive human infections. Recently, a 52-year-old patient suffering from a periprosthetic joint infection (PJI) due to F. magna was treated with cefepime on hemodialysis; however, treatment failed due to relapse caused by antibiotic-resistant strains. Reports on the antimicrobial susceptibility of F. magna clinical isolates are rare. We collected 57 clinical F. magna isolates from Zurich, Switzerland, between September 2019 and July 2020 and tested their antimicrobial susceptibility to investigate the local resistance pattern. Antimicrobial susceptibility testing (AST) was evaluated for nine antibiotics (benzylpenicillin, amoxicillin/clavulanic acid, cefuroxime, cefepime, levofloxacin, rifampicin, metronidazole, doxycycline, and clindamycin) by E-test according to CLSI guidelines. All F. magna strains were susceptible to benzylpenicillin, amoxicillin/clavulanic acid, and metronidazole, while 75% to clindamycin. F. magna isolates showed MIC values lower than species-unrelated breakpoints for cefuroxime, levofloxacin, and cefepime in 93%, 56%, and 32% of the cases, respectively. MIC values for rifampicin and doxycycline were lower than locally determined ECOFFs in 98% and 72% of the cases, respectively. In summary, we recommend the use of benzylpenicillin, amoxicillin/clavulanic acid, or metronidazole without prior AST as first-line treatment option against F. magna PJI infections. If cefuroxime, cefepime, levofloxacin, rifampicin, doxycycline, or clindamycin are used, AST is mandatory.</p>","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"33 1","pages":""},"PeriodicalIF":14.2,"publicationDate":"2022-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89457237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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