Pub Date : 2022-01-01DOI: 10.1590/0100-29452022964
S. S. Berilli, Mateus Francisco Pazinato, Carlos Humberto Desiderio Pirovani, Samuel Paulo Torrezani, L. L. Pereira, A. P. C. G. Berilli
Abstract Advances in production systems always aim at finding alternatives to improve crop productivity. One of the recent practices adopted in commercial banana and plantain plantations refers to the application of liquid fertilizers in bunches in order to increase productivity. This research aimed at verifying whether the use of biofertilizers based on pure vinasse or associated with other chemical fertilizers would provide morphophysiological changes in fruits or increase the productivity of ‘Terra Maranhão’ plantain cultivars. In order to carry out this project, a randomized block design with 6 treatments and 3 replicates was set up in a commercial crop and the postharvest production and quality characteristics of ‘Terra Maranhão’ plantain fruits were evaluated. The results showed that the morphophysiological characteristics of freshly harvested fruits that impact productivity such as the fruit weight and bunch weight were affected by treatments, as the postharvest characteristics of ripe fruits were little affected by the application of fertilizers in bunches, except for the SST content. It could be concluded that the crop yield increased significantly by 17% when using mixture of vinasse, potassium chloride and urea; however, this treatment caused significant reduction of 1.3 ºBrix compared to control.
{"title":"Application of biofertilizer directly on ‘Terra Maranhão’ platain bunch for productivity gain","authors":"S. S. Berilli, Mateus Francisco Pazinato, Carlos Humberto Desiderio Pirovani, Samuel Paulo Torrezani, L. L. Pereira, A. P. C. G. Berilli","doi":"10.1590/0100-29452022964","DOIUrl":"https://doi.org/10.1590/0100-29452022964","url":null,"abstract":"Abstract Advances in production systems always aim at finding alternatives to improve crop productivity. One of the recent practices adopted in commercial banana and plantain plantations refers to the application of liquid fertilizers in bunches in order to increase productivity. This research aimed at verifying whether the use of biofertilizers based on pure vinasse or associated with other chemical fertilizers would provide morphophysiological changes in fruits or increase the productivity of ‘Terra Maranhão’ plantain cultivars. In order to carry out this project, a randomized block design with 6 treatments and 3 replicates was set up in a commercial crop and the postharvest production and quality characteristics of ‘Terra Maranhão’ plantain fruits were evaluated. The results showed that the morphophysiological characteristics of freshly harvested fruits that impact productivity such as the fruit weight and bunch weight were affected by treatments, as the postharvest characteristics of ripe fruits were little affected by the application of fertilizers in bunches, except for the SST content. It could be concluded that the crop yield increased significantly by 17% when using mixture of vinasse, potassium chloride and urea; however, this treatment caused significant reduction of 1.3 ºBrix compared to control.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67381245","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 : 2022-01-01DOI: 10.1590/0100-29452022073
Rodrigo da Silva Santos, S. Schwarz, Magnólia Aparecida Silva da Silva, E. Bertolini, C. C. L. Andrade, Bruna Alana Haupt Pacini
Abstract Guabiju tree (Myrcianthes pungens) belongs to the Myrtaceae family, with wide occurrence in Rio Grande do Sul (RS), southern Brazil, demonstrates great commercial potential regarding the consumption of its fresh fruit, which has a sweet taste and can be used in drinks, jellies and ice creams, in addition to its nutraceutical properties. As their main characteristic, rusts present the formation of orange pustules containing urediniospores of the pathogen on affected organs. The action of the pathogen causes deformation of stems, leaves, flowers and fruits, thus interfer-ing with the physiological processes of the plant. Thus, the present work aimed at presenting information on the occurrence and confirmation of the causal agent of guabiju rust, in addition to reporting the accessions most susceptible and resistant to Austropuccinia in the guabiju working collection of Eldorado do Sul, RS, Brazil. The diagnosis of the disease was based on symptoms, observation of fungal structures by light microscopy and molecular analyses. From microscopy, ellipsoid to ovoid and slightly equinulate urediniospores were observed, characteristic of Austropuccinia sp. The sequence of the internal transcribed spacer (ITS) region of the isolate showed 99.06% similarity with sequences from the same region of A. psidii deposited on the nucleotide database - GenBank (NCBI). This is the first report of rust associated with guabiju in the state of Rio Grande do Sul, Brazil. From the diagrammatic scale developed, it was possible to identify different levels of susceptibility to A. psidii in guabiju accessions under study.
{"title":"Occurrence of Rust in Myrcianthes pungens (O. BERG) D. Legrand Caused by Austropuccinia psidii in The State of Rio Grande do Sul","authors":"Rodrigo da Silva Santos, S. Schwarz, Magnólia Aparecida Silva da Silva, E. Bertolini, C. C. L. Andrade, Bruna Alana Haupt Pacini","doi":"10.1590/0100-29452022073","DOIUrl":"https://doi.org/10.1590/0100-29452022073","url":null,"abstract":"Abstract Guabiju tree (Myrcianthes pungens) belongs to the Myrtaceae family, with wide occurrence in Rio Grande do Sul (RS), southern Brazil, demonstrates great commercial potential regarding the consumption of its fresh fruit, which has a sweet taste and can be used in drinks, jellies and ice creams, in addition to its nutraceutical properties. As their main characteristic, rusts present the formation of orange pustules containing urediniospores of the pathogen on affected organs. The action of the pathogen causes deformation of stems, leaves, flowers and fruits, thus interfer-ing with the physiological processes of the plant. Thus, the present work aimed at presenting information on the occurrence and confirmation of the causal agent of guabiju rust, in addition to reporting the accessions most susceptible and resistant to Austropuccinia in the guabiju working collection of Eldorado do Sul, RS, Brazil. The diagnosis of the disease was based on symptoms, observation of fungal structures by light microscopy and molecular analyses. From microscopy, ellipsoid to ovoid and slightly equinulate urediniospores were observed, characteristic of Austropuccinia sp. The sequence of the internal transcribed spacer (ITS) region of the isolate showed 99.06% similarity with sequences from the same region of A. psidii deposited on the nucleotide database - GenBank (NCBI). This is the first report of rust associated with guabiju in the state of Rio Grande do Sul, Brazil. From the diagrammatic scale developed, it was possible to identify different levels of susceptibility to A. psidii in guabiju accessions under study.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67378426","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 : 2022-01-01DOI: 10.1590/0100-29452022006
Luiz Guilherme Vidal Assad de Carvalho, S. C. Santos, E. P. R. Lourente, V. W. Trovato, C. C. Santos, R. F. D. Rui
Abstract The symbiotic association between native fruit species with Arbuscular Mycorrhizal fungi (AMFs) can contribute to the growth and quality of seedlings in soils with low nutrient availability. Thus, the objective of this study was to evaluate the effects of inoculation with AMFs and phosphate fertilization on the growth and quality of jatobazeiro seedlings ( LHymenaea courbaril.). The experiment was conducted in a completely randomized design in a 5 x 5 factorial scheme. The treatments were constituted by inoculation with the AMFs: Clareoideoglomus etunicatum, Rhizoglomus heterosporum, Rhizoglomus clarum, MIX (mixture of inoculations) and without inoculation with the AMFs, associated with five P doses: 0, 60, 120, 180 and 240 mg kg-1, with growth evaluation at 30, 60, 90, 120 and 150 days after transplantation (DAT). At 150 DAT, the production of biomass, the quality of seedlings, the chlorophyll index, the dependence and mycorrhizal efficiency were determined. Phosphorus did not contribute to the jatobazeiro seedlings growth in the conditions of this study. Seedlings with R. clarum and MIX had the highest growth at 150 DAT, while seedlings with R. clarum also resulted in a greater biomass accumulation. The mycorrhizal dependence and efficiency was affected by phosphate fertilization, evidencing that jatobazeiro is a kind of optional mycorrhizal association.
{"title":"Jatobazeiro seedlings associated with arbuscular mycorrhizal fungi","authors":"Luiz Guilherme Vidal Assad de Carvalho, S. C. Santos, E. P. R. Lourente, V. W. Trovato, C. C. Santos, R. F. D. Rui","doi":"10.1590/0100-29452022006","DOIUrl":"https://doi.org/10.1590/0100-29452022006","url":null,"abstract":"Abstract The symbiotic association between native fruit species with Arbuscular Mycorrhizal fungi (AMFs) can contribute to the growth and quality of seedlings in soils with low nutrient availability. Thus, the objective of this study was to evaluate the effects of inoculation with AMFs and phosphate fertilization on the growth and quality of jatobazeiro seedlings ( LHymenaea courbaril.). The experiment was conducted in a completely randomized design in a 5 x 5 factorial scheme. The treatments were constituted by inoculation with the AMFs: Clareoideoglomus etunicatum, Rhizoglomus heterosporum, Rhizoglomus clarum, MIX (mixture of inoculations) and without inoculation with the AMFs, associated with five P doses: 0, 60, 120, 180 and 240 mg kg-1, with growth evaluation at 30, 60, 90, 120 and 150 days after transplantation (DAT). At 150 DAT, the production of biomass, the quality of seedlings, the chlorophyll index, the dependence and mycorrhizal efficiency were determined. Phosphorus did not contribute to the jatobazeiro seedlings growth in the conditions of this study. Seedlings with R. clarum and MIX had the highest growth at 150 DAT, while seedlings with R. clarum also resulted in a greater biomass accumulation. The mycorrhizal dependence and efficiency was affected by phosphate fertilization, evidencing that jatobazeiro is a kind of optional mycorrhizal association.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67378500","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 : 2022-01-01DOI: 10.1590/0100-29452022119
João Guilherme Viana Vieira, M. Zucoloto, Vinicius de Souza Oliveira, F. D. Oliveira
Abstract The objective of this work was to adjust and validate a mathematical equation to estimate the total leaf area of banana plants of the cultivars Maça BRS Princesa, Prata BRS Platina, Prata Gorutuba and Prata-Anã together, through the linear dimensions of the third leaf and the total number of leaves. For that, the linear first degree and power models were tested, where was used a dependent variable (y) the total leaf area (TLA) an independent variable (x) the multiplication of the length with the total number of leaves (LN), multiplication of the width with the total number of leaves (WN), and multiplying the length by the width with the total number of leaves (LWN). Analysis of covariance was used to test the possibility of using a single equation to estimate the total leaf area of the analyzed cultivars. For all equations, the mean absolute error, the root mean square error and the Willmott d index were obtained as validation criteria. The power model equation TLA = 3.9292(WN)1.5851 can be used simply and quickly to determine the total leaf area of plants of the four cultivars under study.
{"title":"Use of mathematical models to estimate the total leaf area of banana","authors":"João Guilherme Viana Vieira, M. Zucoloto, Vinicius de Souza Oliveira, F. D. Oliveira","doi":"10.1590/0100-29452022119","DOIUrl":"https://doi.org/10.1590/0100-29452022119","url":null,"abstract":"Abstract The objective of this work was to adjust and validate a mathematical equation to estimate the total leaf area of banana plants of the cultivars Maça BRS Princesa, Prata BRS Platina, Prata Gorutuba and Prata-Anã together, through the linear dimensions of the third leaf and the total number of leaves. For that, the linear first degree and power models were tested, where was used a dependent variable (y) the total leaf area (TLA) an independent variable (x) the multiplication of the length with the total number of leaves (LN), multiplication of the width with the total number of leaves (WN), and multiplying the length by the width with the total number of leaves (LWN). Analysis of covariance was used to test the possibility of using a single equation to estimate the total leaf area of the analyzed cultivars. For all equations, the mean absolute error, the root mean square error and the Willmott d index were obtained as validation criteria. The power model equation TLA = 3.9292(WN)1.5851 can be used simply and quickly to determine the total leaf area of plants of the four cultivars under study.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67378871","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 : 2022-01-01DOI: 10.1590/0100-29452022429
Bruno Scentinela Jacintho Paes, M. M. Inomoto, Aline Mayara Gonçalves Barros Silva
Abstract Stinking passion flower (Passiflora foetida L.) is an herbaceous vine used due its medicinal properties. It could be an option to be used as a rootstock for sour passion fruit (P. edulis). This interest was especially motivated by its resistance to Fusarium oxysporum f. sp. passifloraeand F. solani, two soilborne pathogens that severely limit the sour passion fruit cultivation in Brazil. Phytonematodes are other important soil pathogens to most crops, including Passiflora species, and they often interact synergistically with pathogenic Fusarium spp. strains. However, the host status of stinking passion flower to phytonematodes was not assessed yet. Therefore, three pot experiments were carried out in order to assess the reproduction of Rotylenchulus reniformis, Meloidogyne javanica and on Pratylenchus brachyurusstinking passion flower and sour passion fruit. Both P. foetida and P. edulis were susceptible to R. reniformis, but immune (or highly resistant) to both M. javanica and P. brachyurus. Based on previous and the present work, R. reniformis stands out and could be pointed as the most important species to species of Passiflora.
{"title":"Host status of stinking passion flower and yellow passion fruit to Rotylenchulus reniformis, Meloidogyne javanica and Pratylenchus brachyurus","authors":"Bruno Scentinela Jacintho Paes, M. M. Inomoto, Aline Mayara Gonçalves Barros Silva","doi":"10.1590/0100-29452022429","DOIUrl":"https://doi.org/10.1590/0100-29452022429","url":null,"abstract":"Abstract Stinking passion flower (Passiflora foetida L.) is an herbaceous vine used due its medicinal properties. It could be an option to be used as a rootstock for sour passion fruit (P. edulis). This interest was especially motivated by its resistance to Fusarium oxysporum f. sp. passifloraeand F. solani, two soilborne pathogens that severely limit the sour passion fruit cultivation in Brazil. Phytonematodes are other important soil pathogens to most crops, including Passiflora species, and they often interact synergistically with pathogenic Fusarium spp. strains. However, the host status of stinking passion flower to phytonematodes was not assessed yet. Therefore, three pot experiments were carried out in order to assess the reproduction of Rotylenchulus reniformis, Meloidogyne javanica and on Pratylenchus brachyurusstinking passion flower and sour passion fruit. Both P. foetida and P. edulis were susceptible to R. reniformis, but immune (or highly resistant) to both M. javanica and P. brachyurus. Based on previous and the present work, R. reniformis stands out and could be pointed as the most important species to species of Passiflora.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67379615","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 : 2022-01-01DOI: 10.1590/0100-29452022841
M. J. Vieira, L. Argenta, T. L. Brancher, S. T. D. Freitas, J. Mattheis
Abstract The objective of this study was to determine the relationship among dry matter content (DMC) and maturity indexes at harvest and quality of ‘Gala’ apples after storage. Apple fruit of four ‘Gala’ strains produced on two rootstocks and three growing regions were used for experiments 1 and 2. For all experiments, fruit harvest maturity was assessed one day after harvest and stored fruit was assessed after removal from storage plus seven days at 22 °C. For experiment 1, fruit were harvested weekly along the final stages of growth and maturation on the tree. For experiment 2, fruit were harvested at commercial maturity and stored under a controlled atmosphere at 0.7 oC for 195 days. For experiment 3, fruit from two orchards were harvested at commercial maturity and stored in air at 1oC for 50, 110, or 194 days. DMC did not change during the final stages of fruit growth, however, there were significant changes in fruit firmness, starch index, and soluble solids content (SSC) during the same period. At the commercial harvest, fruit DMC showed high correlation with SSC, titratable acidity (TA) and firmness. DMC assessed at the commercial harvest also showed high correlation after storage with SSC and TA but not with firmness or flesh browning (FB). DMC decreased slightly during storage. The results show that DMC is not a reliable index to determine ‘Gala’ apple maturity at harvest, or to predict fruit firmness and FB after storage. However, DMC at harvest has potential to predict SSC and TA after storage, two important fruit quality traits. Fruit density at harvest showed utility to predict risk of flesh browning after storage.
{"title":"Relationship among dry matter content and maturity indexes at harvest and quality of ‘Gala’ apples after storage","authors":"M. J. Vieira, L. Argenta, T. L. Brancher, S. T. D. Freitas, J. Mattheis","doi":"10.1590/0100-29452022841","DOIUrl":"https://doi.org/10.1590/0100-29452022841","url":null,"abstract":"Abstract The objective of this study was to determine the relationship among dry matter content (DMC) and maturity indexes at harvest and quality of ‘Gala’ apples after storage. Apple fruit of four ‘Gala’ strains produced on two rootstocks and three growing regions were used for experiments 1 and 2. For all experiments, fruit harvest maturity was assessed one day after harvest and stored fruit was assessed after removal from storage plus seven days at 22 °C. For experiment 1, fruit were harvested weekly along the final stages of growth and maturation on the tree. For experiment 2, fruit were harvested at commercial maturity and stored under a controlled atmosphere at 0.7 oC for 195 days. For experiment 3, fruit from two orchards were harvested at commercial maturity and stored in air at 1oC for 50, 110, or 194 days. DMC did not change during the final stages of fruit growth, however, there were significant changes in fruit firmness, starch index, and soluble solids content (SSC) during the same period. At the commercial harvest, fruit DMC showed high correlation with SSC, titratable acidity (TA) and firmness. DMC assessed at the commercial harvest also showed high correlation after storage with SSC and TA but not with firmness or flesh browning (FB). DMC decreased slightly during storage. The results show that DMC is not a reliable index to determine ‘Gala’ apple maturity at harvest, or to predict fruit firmness and FB after storage. However, DMC at harvest has potential to predict SSC and TA after storage, two important fruit quality traits. Fruit density at harvest showed utility to predict risk of flesh browning after storage.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67380642","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 : 2022-01-01DOI: 10.1590/0100-29452022916
Charlismilã Amorim do Couto, J. L. D. C. Souza, E. R. Souza
Abstract In the production of micropropagated seedlings, an important step is the exposure of plants to local environmental conditions, called acclimatization. Thus, the aim of this study was to evaluate the physiological response of banana ‘BRS Conquista’ cultivar, under different substrates and organomineral fertilizer doses during acclimatization. The experimental design used was a 3 x 5 factorial scheme (substrates x organomineral fertilizer doses), with five replicates and five seedlings per plot. The substrates used were: coconut fiber, pine bark and 100% natural mixed commercial formula. The organomineral fertilizer used was 4-14-8 at doses of 0, 1,000, 2,000, 3,000 and 4,000 g m-3. At 60 days after seedlings transplant, evaluations were performed regarding radiation incidence (Qleaf), internal CO2 concentration (Ci), stomatal conductance (Gs), transpiration rate (E), photosynthesis (A), mesophyll conductance (Gm), chlorophyll fluorescence (F), maximum leaf fluorescence in light (Fm) and leaf area index (LAI). It was observed that the pine bark substrate provided adequate physiological levels for the development of banana seedlings during acclimatization, as well as higher leaf area values. Intermediate organomineral fertilizer doses (1,000 to 3,000 g m-3) resulted in higher photosynthetic rates.
在微繁苗的生产中，一个重要的步骤是植物暴露于当地的环境条件，称为驯化。因此，本研究的目的是评价香蕉品种BRS征服者在不同基质和有机肥用量下的驯化生理反应。试验设计为3 × 5因子方案(基质×有机肥剂量)，每地块5个重复，5株苗。实验底物为:椰子纤维、松树皮和100%天然混合商业配方。施用的有机肥为4-14-8，剂量分别为0、1,000、2,000、3,000和4,000 g -3。在幼苗移栽后60 d，对辐射发生率(Qleaf)、内部CO2浓度(Ci)、气孔导度(Gs)、蒸腾速率(E)、光合作用(A)、叶叶导度(Gm)、叶绿素荧光(F)、最大叶片荧光(Fm)和叶面积指数(LAI)进行评价。结果表明，在适应过程中，松皮基质为香蕉幼苗的发育提供了足够的生理水平，并具有较高的叶面积值。中等有机肥剂量(1,000至3,000 g -3)导致较高的光合速率。
{"title":"Physiological analysis of micropropagated banana ‘BRS Conquista’ seedlings acclimatized under different substrates and organomineral fertilizer doses","authors":"Charlismilã Amorim do Couto, J. L. D. C. Souza, E. R. Souza","doi":"10.1590/0100-29452022916","DOIUrl":"https://doi.org/10.1590/0100-29452022916","url":null,"abstract":"Abstract In the production of micropropagated seedlings, an important step is the exposure of plants to local environmental conditions, called acclimatization. Thus, the aim of this study was to evaluate the physiological response of banana ‘BRS Conquista’ cultivar, under different substrates and organomineral fertilizer doses during acclimatization. The experimental design used was a 3 x 5 factorial scheme (substrates x organomineral fertilizer doses), with five replicates and five seedlings per plot. The substrates used were: coconut fiber, pine bark and 100% natural mixed commercial formula. The organomineral fertilizer used was 4-14-8 at doses of 0, 1,000, 2,000, 3,000 and 4,000 g m-3. At 60 days after seedlings transplant, evaluations were performed regarding radiation incidence (Qleaf), internal CO2 concentration (Ci), stomatal conductance (Gs), transpiration rate (E), photosynthesis (A), mesophyll conductance (Gm), chlorophyll fluorescence (F), maximum leaf fluorescence in light (Fm) and leaf area index (LAI). It was observed that the pine bark substrate provided adequate physiological levels for the development of banana seedlings during acclimatization, as well as higher leaf area values. Intermediate organomineral fertilizer doses (1,000 to 3,000 g m-3) resulted in higher photosynthetic rates.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67381001","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 : 2022-01-01DOI: 10.1590/0100-29452022003
L. Silva, Í. Cavalcante, J. Cunha, J. T. Lobo, D. A. Carreiro, V. B. P. Paiva Neto
Abstract The objective of this study was to evaluate the effectiveness of fulvic acids and free amino acids on paclobutrazol in the flowering of mango ‘Keitt’ cultivated in the semi-arid region. The experiment was performed from 2017 to 2018 simultaneously in two orchards with the same plants and management characteristics, located in Cabrobó, State of Pernambuco, Brazil. The experimental design was randomized blocks with four treatments and five replications of four trees. The treatments were: T1: paclobutrazol + water (control); T2: paclobutrazol + fulvic acids; T3: paclobutrazol + amino acids; T4: paclobutrazol + fulvic acids + amino acids. Applying fulvic acids plus paclobutrazol increased gas exchange efficiency, favoring flowering and fruiting. In contrast, amino acids alone or with fulvic acids decreased the flowering efficiency.
{"title":"Organic acids allied with paclobutrazol modify mango tree ‘Keitt’ flowering","authors":"L. Silva, Í. Cavalcante, J. Cunha, J. T. Lobo, D. A. Carreiro, V. B. P. Paiva Neto","doi":"10.1590/0100-29452022003","DOIUrl":"https://doi.org/10.1590/0100-29452022003","url":null,"abstract":"Abstract The objective of this study was to evaluate the effectiveness of fulvic acids and free amino acids on paclobutrazol in the flowering of mango ‘Keitt’ cultivated in the semi-arid region. The experiment was performed from 2017 to 2018 simultaneously in two orchards with the same plants and management characteristics, located in Cabrobó, State of Pernambuco, Brazil. The experimental design was randomized blocks with four treatments and five replications of four trees. The treatments were: T1: paclobutrazol + water (control); T2: paclobutrazol + fulvic acids; T3: paclobutrazol + amino acids; T4: paclobutrazol + fulvic acids + amino acids. Applying fulvic acids plus paclobutrazol increased gas exchange efficiency, favoring flowering and fruiting. In contrast, amino acids alone or with fulvic acids decreased the flowering efficiency.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67378066","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 : 2022-01-01DOI: 10.1590/0100-29452022832
P. Leão, Marcos Andrei Custódio da Cunha, Edimara Ribeiro de Souza
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.
摘要砧木在世界范围内广泛应用于葡萄栽培，影响着葡萄及其果汁和葡萄酒的产量、成分和品质。本研究的目的是确定砧木对生长在苏马姆萨迪奥do Vale do ss o Francisco的' BRS Magna '果汁葡萄的产量性能和物理和物理化学性状的影响。该研究于2015年至2019年在Embrapa Semiárido位于巴西PE Petrolina的Bebedouro试验田进行了六个生产周期的研究。采用IAC 572、IAC 766、IAC 313、Paulsen 1103、SO4、Harmony和Freedom 7个砧木处理。评估了以下变量:估计产量、每株葡萄串数、枝叶新鲜物质、束重、束长和束宽、浆果重、总可溶性固形物含量(SS)、可滴定酸度(TA)和SS / TA比(SS:TA)。除SS外，砧木对所有变量的影响都很显著。砧木IAC 572使‘BRS Magna’葡萄的产量提高了61%，达到32.78吨。Ha-1，其他产量成分响应显著。根据前三个主成分的散点图结果，可以根据生产周期对砧木进行分离。SS和TA的平均值表明，该品种在弗朗西斯科河谷的可溶性固形物含量高，酸度低，SS:TA含量高，无论使用何种砧木，都有潜力制备高质量的果汁。
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Pub Date : 2022-01-01DOI: 10.1590/0100-29452022855
E. Khedr
Abstract This study was carried out on pomegranate fruits cv. “Wonderful” with the aim of maintaining fruit quality and water content, reducing weight loss, chilling injury and browning symptoms during cold storage at 5 °C and 90% RH for 60 d followed by simulated shelf life at 20 °C for 14 d. Coating treatments included gum arabic at 5% and 10%, paraffin at 10% and 20%, chitosan at 1% and 2%, and beeswax at 5% and 10%. All conducted coatings treatments significantly maintained fruit quality as compared to the control (uncoated ones). Chitosan at 2% significantly preserved fruit quality, firmness, visual appearance, husk colour, ascorbic acid and anthocyanin content, furthermore it reduced browning, peroxidase enzyme activity and decay incidence. Paraffin at 10% and beeswax at 10% were effective in maintaining fruit water content, in addition to the significant preservation of husk distention using paraffin at 20%, moreover, application of gum arabic at 5% maintained moderate rates of fruit respiration and total soluble solids content as compared to control.
{"title":"Application of different coating treatments to enhance storability and fruit quality of pomegranate (Punica granatum L., cv. Wonderful) during prolonged storage","authors":"E. Khedr","doi":"10.1590/0100-29452022855","DOIUrl":"https://doi.org/10.1590/0100-29452022855","url":null,"abstract":"Abstract This study was carried out on pomegranate fruits cv. “Wonderful” with the aim of maintaining fruit quality and water content, reducing weight loss, chilling injury and browning symptoms during cold storage at 5 °C and 90% RH for 60 d followed by simulated shelf life at 20 °C for 14 d. Coating treatments included gum arabic at 5% and 10%, paraffin at 10% and 20%, chitosan at 1% and 2%, and beeswax at 5% and 10%. All conducted coatings treatments significantly maintained fruit quality as compared to the control (uncoated ones). Chitosan at 2% significantly preserved fruit quality, firmness, visual appearance, husk colour, ascorbic acid and anthocyanin content, furthermore it reduced browning, peroxidase enzyme activity and decay incidence. Paraffin at 10% and beeswax at 10% were effective in maintaining fruit water content, in addition to the significant preservation of husk distention using paraffin at 20%, moreover, application of gum arabic at 5% maintained moderate rates of fruit respiration and total soluble solids content as compared to control.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67380736","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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