Pub Date : 2021-03-30DOI: 10.18188/SAP.V19I4.25335
L. P. D. S. Brito, F. Santana, Gabriel Santos Carvalho, D. V. Chaves
Soybean plants are constantly exposed to abiotic stresses that compromise production, among these, in areas of Brazilian Cerrado, mainly in the northeast region, periods of drought can occur due to irregular and summer rainfall. Thus, the objective of this work was to determine the physiological response of Monsoy 9350 soybean at different stages of development, when subjected to water stress. The experiment was conducted in a greenhouse, in the experimental area of the campus of the Universidade Federal do Piauí (UFPI) in Bom Jesus-PI, assembled in a 3x3 factorial scheme, with water in the soil at three levels (50% VTP; 75% VTP and 100% VTP) and three phenological phases, budding to bloom (BF); bloom to complete grain filling (FE) and budding to complete grain filling (BE), the experiment consisted of 9 treatments, in a randomized block design, containing 4 replications. The evaluation of the experiment was standardized according to the phenological stages and not according to the time. The following variables were evaluated: plant height, internode length, internode thickness, number of branches, chlorophyll index, number of flowers, insertion of the first pod and number of pods. According to the evaluated results, the water stress in soybean for cultivating Monsoy 9350 mainly affects the period from budding to bloom, interfering negatively in height, chlorophyll and number of pods.
{"title":"Performance of soybean plants subject to water deficit in different development stages","authors":"L. P. D. S. Brito, F. Santana, Gabriel Santos Carvalho, D. V. Chaves","doi":"10.18188/SAP.V19I4.25335","DOIUrl":"https://doi.org/10.18188/SAP.V19I4.25335","url":null,"abstract":"Soybean plants are constantly exposed to abiotic stresses that compromise production, among these, in areas of Brazilian Cerrado, mainly in the northeast region, periods of drought can occur due to irregular and summer rainfall. Thus, the objective of this work was to determine the physiological response of Monsoy 9350 soybean at different stages of development, when subjected to water stress. The experiment was conducted in a greenhouse, in the experimental area of the campus of the Universidade Federal do Piauí (UFPI) in Bom Jesus-PI, assembled in a 3x3 factorial scheme, with water in the soil at three levels (50% VTP; 75% VTP and 100% VTP) and three phenological phases, budding to bloom (BF); bloom to complete grain filling (FE) and budding to complete grain filling (BE), the experiment consisted of 9 treatments, in a randomized block design, containing 4 replications. The evaluation of the experiment was standardized according to the phenological stages and not according to the time. The following variables were evaluated: plant height, internode length, internode thickness, number of branches, chlorophyll index, number of flowers, insertion of the first pod and number of pods. According to the evaluated results, the water stress in soybean for cultivating Monsoy 9350 mainly affects the period from budding to bloom, interfering negatively in height, chlorophyll and number of pods.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43514603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-30DOI: 10.18188/SAP.V19I4.25689
J. Silvestre, G. Voltolini, Ademilson de Oliveira Alecrim, M. R. Malta, L. A. D. Silva, Denis Henrique Silva Nadaletti
One technique that has been drawing the attention of producers is the induced fermentation of the fruits. In the induced fermentation process, the fermentation speed is increased, but environmental interferences with different microbiota can alter the fermentation process, making it difficult to repeat the results. The objective was to induce anaerobic fermentations in coffee fruits, through different processes, aiming at modifying the sensory profile of the beverage. The experiment was conducted in 2019, with ‘Mundo Novo IAC-379/19’ coffee fruits, which came from full harvest, with 70% of fruits in the parchment stage. On the day of harvest, the coffee was separated into 78 experimental plots, each containing 10 L. The treatments used were: addition extract of Citrus reticulata, Carica papaya, Ananas comosus, Eucalyptus spp. leaf and addition of sugar, at concentration of 10% in aqueous solution (stored in 12 L buckets) and treatment with water only. 24 and 48h fermentation periods were tested, besides two processing methods, natural and with peeled fruits. In addition, the fruits were tested without induced fermentation for natural and peeled coffee. It is concluded that the treatment with fermentation induced for 24 h without the addition of extracts in wet processing yielded coffees of better sensory quality, with a final score of 85.33. The wet processing of coffee fruits without the addition of extracts, immersed in water for 24 h, yielded better sensory quality. The addition of Ananas comosus extracts implies a reduction in the sensory quality of coffee in the induced fermentation process.
引起生产者注意的一种技术是水果的诱导发酵。在诱导发酵过程中，发酵速度加快，但不同微生物群的环境干扰会改变发酵过程，使结果难以重复。目的是通过不同的工艺在咖啡果实中诱导厌氧发酵，旨在改变饮料的感官特性。该实验于2019年进行，“Mundo Novo IAC-379/19”咖啡果实来自全收，70%的果实处于羊皮纸阶段。在收获当天，将咖啡分成78个实验区，每个试验区含有10L。所用的处理方法是：添加网纹柑橘、番木瓜、Ananas comosus、桉树的提取物。叶和添加糖，在水溶液中的浓度为10%（储存在12L桶中），并仅用水处理。除了天然和去皮两种加工方法外，还测试了24和48小时的发酵期。此外，在没有诱导发酵的情况下，对天然和去皮咖啡的果实进行了测试。得出的结论是，在湿加工中，在不添加提取物的情况下，用发酵诱导24小时的处理产生了更好的感官质量的咖啡，最终得分为85.33。在不添加提取物的情况下，将咖啡果实浸泡在水中24小时进行湿法加工，可获得更好的感官质量。添加Ananas comosus提取物意味着在诱导发酵过程中咖啡的感官质量降低。
{"title":"Modification in the sensory profile of coffee through anaerobic fermentation techniques in processing methods","authors":"J. Silvestre, G. Voltolini, Ademilson de Oliveira Alecrim, M. R. Malta, L. A. D. Silva, Denis Henrique Silva Nadaletti","doi":"10.18188/SAP.V19I4.25689","DOIUrl":"https://doi.org/10.18188/SAP.V19I4.25689","url":null,"abstract":"One technique that has been drawing the attention of producers is the induced fermentation of the fruits. In the induced fermentation process, the fermentation speed is increased, but environmental interferences with different microbiota can alter the fermentation process, making it difficult to repeat the results. The objective was to induce anaerobic fermentations in coffee fruits, through different processes, aiming at modifying the sensory profile of the beverage. The experiment was conducted in 2019, with ‘Mundo Novo IAC-379/19’ coffee fruits, which came from full harvest, with 70% of fruits in the parchment stage. On the day of harvest, the coffee was separated into 78 experimental plots, each containing 10 L. The treatments used were: addition extract of Citrus reticulata, Carica papaya, Ananas comosus, Eucalyptus spp. leaf and addition of sugar, at concentration of 10% in aqueous solution (stored in 12 L buckets) and treatment with water only. 24 and 48h fermentation periods were tested, besides two processing methods, natural and with peeled fruits. In addition, the fruits were tested without induced fermentation for natural and peeled coffee. It is concluded that the treatment with fermentation induced for 24 h without the addition of extracts in wet processing yielded coffees of better sensory quality, with a final score of 85.33. The wet processing of coffee fruits without the addition of extracts, immersed in water for 24 h, yielded better sensory quality. The addition of Ananas comosus extracts implies a reduction in the sensory quality of coffee in the induced fermentation process.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47938778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-30DOI: 10.18188/SAP.V19I4.24572
M. A. D. Sousa, Victor Sousa Avelino, I. Reis
In the Northern region, the cultivation of cowpea is mainly carried out by small producers, who have little financial and technological resources to optimize and increase production. Therefore, the objective of this work was to evaluate the growth of cowpea subjected to mineral fertilization and doses of biofertilizer produced in domestic compost. The experiment was carried out in a protected environment, covered with a 50% shade screen, at the Federal University of Western Pará (UFOPA), Santarém PA, in 2017. Seeds were arranged in 5 L pots, containing 3.5 Kg of Yellow Latosol. For sowing, 3 seeds per pot were used and thinning occurred 7 days after seedling emergence, leaving only the most vigorous. The experimental design used was randomized blocks, with subdivided plots, where the plots were the doses of biofertilizer (50, 100, 150 and 200 mL plant-1 + mineral fertilizer) and the subplots, the time periods: T1 (0 to 20 days), T2 (24 to 33 days), T3 (37 to 47 days) and T4 (51 to 61 days), containing five repetitions. Plant height, stem diameter, absolute stem growth rate and absolute growth rate in stem thickness were evaluated. The greatest growth of cowpea was obtained in treatments with mineral fertilization. The dose of 200 mL plant-1 of the biofertilizer showed results close to mineral fertilization, in different vegetative stages. Cowpea plants, starting at 45 DAE, tend to stabilize their growth in diameter.
{"title":"Growth of cowpea submitted to mineral fertilization and different doses of biofertilizer","authors":"M. A. D. Sousa, Victor Sousa Avelino, I. Reis","doi":"10.18188/SAP.V19I4.24572","DOIUrl":"https://doi.org/10.18188/SAP.V19I4.24572","url":null,"abstract":"In the Northern region, the cultivation of cowpea is mainly carried out by small producers, who have little financial and technological resources to optimize and increase production. Therefore, the objective of this work was to evaluate the growth of cowpea subjected to mineral fertilization and doses of biofertilizer produced in domestic compost. The experiment was carried out in a protected environment, covered with a 50% shade screen, at the Federal University of Western Pará (UFOPA), Santarém PA, in 2017. Seeds were arranged in 5 L pots, containing 3.5 Kg of Yellow Latosol. For sowing, 3 seeds per pot were used and thinning occurred 7 days after seedling emergence, leaving only the most vigorous. The experimental design used was randomized blocks, with subdivided plots, where the plots were the doses of biofertilizer (50, 100, 150 and 200 mL plant-1 + mineral fertilizer) and the subplots, the time periods: T1 (0 to 20 days), T2 (24 to 33 days), T3 (37 to 47 days) and T4 (51 to 61 days), containing five repetitions. Plant height, stem diameter, absolute stem growth rate and absolute growth rate in stem thickness were evaluated. The greatest growth of cowpea was obtained in treatments with mineral fertilization. The dose of 200 mL plant-1 of the biofertilizer showed results close to mineral fertilization, in different vegetative stages. Cowpea plants, starting at 45 DAE, tend to stabilize their growth in diameter.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46528380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-30DOI: 10.18188/SAP.V19I4.25536
J. Chiomento, A. Ferreira, Rosiani Castoldi Costa, Nicolas dos Santos Trentin, Thomas dos Santos Trentin, E. Calvete
Bare-root strawberry plants produced in Patagonia accumulate more reserves in the main crown, which allows their immediate development after transplantation. Due to the dependence on these bare-root plants, Brazilian producers use early cultivars, which start the leaves emission and the flower buds differentiation in advance, since these bare-root plants do not always arrive within the estimated time for planting in southern Brazil. The objective of the work was to investigate whether six strawberry cultivars, produced in a greenhouse, differ in their phyllochron, and root system development. Six cultivars were tested, arranged in a randomized block design, with four replications. Bare-root plants were cultivated in soil in a greenhouse. The phyllochron was evaluated by counting the number of leaves, weekly, from the beginning of leaf emission (from the main crown) until the appearance of the first fruit. The roots were digitized by a scanner and the images analyzed by the WinRHIZO® software. ‘Camarosa’ cultivar was considered the earliest to start fruiting, as it had the lowest phyllochron value (69.93ºC day-1 leaf-1), while the cultivar ‘San Andreas’ was the latest (166.67ºC day-1 leaf-1). ‘Albion’ and ‘Aromas’ presented the highest total root length in relation to the other cultivars. In conclusion, the six strawberry cultivars analyzed in this study, with different photoperiodic classifications regarding flowering, differ in relation to their morphophenological performance. In the growing conditions of southern Brazil, phyllochron study indicates that ‘Camarosa’ cultivar is the earliest and ‘San Andreas’ cultivar is the latest. ‘Albion’ and ‘Aromas’ cultivars are more compact plants, with greater potential for the development of the root system.
{"title":"Phyllochron, and root system development of six strawberry cultivars with different photoperiodic flowering responses","authors":"J. Chiomento, A. Ferreira, Rosiani Castoldi Costa, Nicolas dos Santos Trentin, Thomas dos Santos Trentin, E. Calvete","doi":"10.18188/SAP.V19I4.25536","DOIUrl":"https://doi.org/10.18188/SAP.V19I4.25536","url":null,"abstract":"Bare-root strawberry plants produced in Patagonia accumulate more reserves in the main crown, which allows their immediate development after transplantation. Due to the dependence on these bare-root plants, Brazilian producers use early cultivars, which start the leaves emission and the flower buds differentiation in advance, since these bare-root plants do not always arrive within the estimated time for planting in southern Brazil. The objective of the work was to investigate whether six strawberry cultivars, produced in a greenhouse, differ in their phyllochron, and root system development. Six cultivars were tested, arranged in a randomized block design, with four replications. Bare-root plants were cultivated in soil in a greenhouse. The phyllochron was evaluated by counting the number of leaves, weekly, from the beginning of leaf emission (from the main crown) until the appearance of the first fruit. The roots were digitized by a scanner and the images analyzed by the WinRHIZO® software. ‘Camarosa’ cultivar was considered the earliest to start fruiting, as it had the lowest phyllochron value (69.93ºC day-1 leaf-1), while the cultivar ‘San Andreas’ was the latest (166.67ºC day-1 leaf-1). ‘Albion’ and ‘Aromas’ presented the highest total root length in relation to the other cultivars. In conclusion, the six strawberry cultivars analyzed in this study, with different photoperiodic classifications regarding flowering, differ in relation to their morphophenological performance. In the growing conditions of southern Brazil, phyllochron study indicates that ‘Camarosa’ cultivar is the earliest and ‘San Andreas’ cultivar is the latest. ‘Albion’ and ‘Aromas’ cultivars are more compact plants, with greater potential for the development of the root system.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46456689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-30DOI: 10.18188/SAP.V19I4.25187
P. H. A. Catunda, Edvan Costa da Silva, Maria Catarina Da Costa
In recent years, passion fruit orchards have suffered from the high incidence of microorganisms, causing damage from the seedling phase to the post-harvest of the fruits; among these microorganisms are the fungi that comprise the largest number of species associated with the seeds. The objective of this work was to evaluate the incidence of fungi associated with yellow passion fruit seeds in the State of Maranhão. The experiment was carried out in 2014 and conducted at the Seed Laboratory of the State University of Southern Maranhão (UEMASUL), Campus Imperatriz. Fruit seeds collected from six municipalities in the state of Maranhão (Carolina, Capinzal do Norte, Estreito, Imperatriz, Vila Nova dos Martírios and São Luís) were used. A completely randomized design with four replications was adopted. A total of 400 seeds were used per municipality, 50 per gerbox, totaling the processing and analysis of 2400 seeds in general. The incidence of pathogenic agents in the seeds was determined by using the filter paper method with freezing, using four replications of 100 seeds per evaluated municipality. Seven days later, the incidence of pathogens was estimated by using a stereomicroscope, with confirmation of the genus and/or species of the fungus. The incidence of Penicillium sp. in yellow passion fruit seeds occurred in all assessed municipalities collected. The city of Vila Nova dos Martírios has presented the highest incidence of fungi, while the city of Imperatriz has had the lowest rate.
近年来，百香果果园微生物高发，从幼苗期到果实收获后都会造成危害；在这些微生物中，真菌是与种子相关的物种数量最多的。这项工作的目的是评估马拉尼昂州与黄色百香果种子相关的真菌的发病率。该实验于2014年在位于Imperatriz校区的南马拉尼昂州立大学（UEMASUL）种子实验室进行。使用了从马拉尼昂州的六个市镇（卡罗莱纳州、北卡平扎尔市、埃斯特雷托市、Imperatriz市、Vila Nova dos Martírios市和São LuíS市）收集的水果种子。采用四次重复的完全随机设计。每个市政当局总共使用了400颗种子，每个沙鼠使用了50颗，总共处理和分析了2400颗种子。通过冷冻滤纸法测定种子中病原体的发生率，每个评估城市使用100个种子的四次重复。七天后，通过使用立体显微镜估计病原体的发生率，并确认真菌的属和/或种。在收集到的所有评估城市中，黄色百香果种子中的青霉属发生率都很高。Vila Nova dos Martírios市的真菌发病率最高，而Imperatriz市的发病率最低。
{"title":"Incidence of fungi on yellow passion fruit seeds in the Maranhão State (Brazil)","authors":"P. H. A. Catunda, Edvan Costa da Silva, Maria Catarina Da Costa","doi":"10.18188/SAP.V19I4.25187","DOIUrl":"https://doi.org/10.18188/SAP.V19I4.25187","url":null,"abstract":"In recent years, passion fruit orchards have suffered from the high incidence of microorganisms, causing damage from the seedling phase to the post-harvest of the fruits; among these microorganisms are the fungi that comprise the largest number of species associated with the seeds. The objective of this work was to evaluate the incidence of fungi associated with yellow passion fruit seeds in the State of Maranhão. The experiment was carried out in 2014 and conducted at the Seed Laboratory of the State University of Southern Maranhão (UEMASUL), Campus Imperatriz. Fruit seeds collected from six municipalities in the state of Maranhão (Carolina, Capinzal do Norte, Estreito, Imperatriz, Vila Nova dos Martírios and São Luís) were used. A completely randomized design with four replications was adopted. A total of 400 seeds were used per municipality, 50 per gerbox, totaling the processing and analysis of 2400 seeds in general. The incidence of pathogenic agents in the seeds was determined by using the filter paper method with freezing, using four replications of 100 seeds per evaluated municipality. Seven days later, the incidence of pathogens was estimated by using a stereomicroscope, with confirmation of the genus and/or species of the fungus. The incidence of Penicillium sp. in yellow passion fruit seeds occurred in all assessed municipalities collected. The city of Vila Nova dos Martírios has presented the highest incidence of fungi, while the city of Imperatriz has had the lowest rate.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49495856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-30DOI: 10.18188/SAP.V19I4.25103
Camila Santos, Valéria Pohlmann, Fernanda Ludwig
Strawberry (Fragaria x ananassa) is a perishable fruit with a short post-harvest life and a high incidence of fungal diseases, especially Botrytis cinerea. For control and prevention, synthetic products are often used which negatively influence in the food and environmental security. The present work was carried out with the objective of evaluating the inhibitory potential of essential oils in the growth and control of the B. cinerea in vitro and in vivo. The essential oils of thyme (Thymus vulgares L.), cinnamon (Cinnamomum cassia L.), lemongrass (Cymbopogon flexuosus L.), peppermint (Mentha piperita L.) and tea tree (Melaleuca alternifolia Maiden & Betche) were tested, in addition to control made of autoclaved water, using a completely randomized design with 4 replications. The fungus growth was evaluated in vitro through grading. Strawberry fruits were evaluated for the presence of B. cinerea, firmness and total soluble solids content. The growth of the B. cinerea in vitro, the percentage of gray mold infection, the total soluble solids content and the texture of strawberry were evaluated. The in vitro growth of the fungus received lower scores with the essential oils of thyme and cinnamon, with values of 0.32 and 0.92, respectively, with greater suppression. The percentage of strawberry with symptoms were lower than the treatments with tea tree (8,33%), thyme (25%), lemongrass (25%) and peppermint (26,66%). The essential oils of thyme and cinnamon have potential for use in the control of the Botrytis cinerea in in vitro test and the essential oils of peppermint, thyme, tea tree and lemongrass have potential for use in the suppression in strawberry fruits.
草莓(Fragaria x ananassa)是一种易腐烂的水果，采后寿命短，真菌病发病率高，尤其是灰葡萄孢。为了控制和预防，经常使用合成产品，这对食品和环境安全产生了负面影响。本研究的目的是评价精油在体外和体内对绿僵菌生长和控制的抑制潜力。采用4个重复的完全随机设计，对百里香(thyymus vulgares L.)、肉桂(Cinnamomum cassia L.)、柠檬草(Cymbopogon flexuosus L.)、薄荷(Mentha piperita L.)和茶树(Melaleuca alternifolia Maiden & Betche)的精油进行了测试，并采用蒸压水作为对照。通过分级评价真菌在体外的生长情况。对草莓果实进行了灰孢杆菌的存在、硬度和总可溶性固形物含量的评价。考察了灰霉菌的离体生长、灰霉菌侵染率、总可溶性固形物含量和草莓的质地。百里香精油和肉桂精油对真菌体外生长的抑制作用较弱，分别为0.32和0.92。草莓有症状的比例低于茶树(8.33%)、百里香(25%)、柠檬草(25%)和薄荷(26.66%)处理。百里香精油和肉桂精油在体外试验中对葡萄灰霉病有抑制作用，薄荷精油、百里香精油、茶树精油和柠檬草精油在草莓果实中有抑制作用。
{"title":"Alternative suppression of Botrytis cinerea in strawberry using essential oils","authors":"Camila Santos, Valéria Pohlmann, Fernanda Ludwig","doi":"10.18188/SAP.V19I4.25103","DOIUrl":"https://doi.org/10.18188/SAP.V19I4.25103","url":null,"abstract":"Strawberry (Fragaria x ananassa) is a perishable fruit with a short post-harvest life and a high incidence of fungal diseases, especially Botrytis cinerea. For control and prevention, synthetic products are often used which negatively influence in the food and environmental security. The present work was carried out with the objective of evaluating the inhibitory potential of essential oils in the growth and control of the B. cinerea in vitro and in vivo. The essential oils of thyme (Thymus vulgares L.), cinnamon (Cinnamomum cassia L.), lemongrass (Cymbopogon flexuosus L.), peppermint (Mentha piperita L.) and tea tree (Melaleuca alternifolia Maiden & Betche) were tested, in addition to control made of autoclaved water, using a completely randomized design with 4 replications. The fungus growth was evaluated in vitro through grading. Strawberry fruits were evaluated for the presence of B. cinerea, firmness and total soluble solids content. The growth of the B. cinerea in vitro, the percentage of gray mold infection, the total soluble solids content and the texture of strawberry were evaluated. The in vitro growth of the fungus received lower scores with the essential oils of thyme and cinnamon, with values of 0.32 and 0.92, respectively, with greater suppression. The percentage of strawberry with symptoms were lower than the treatments with tea tree (8,33%), thyme (25%), lemongrass (25%) and peppermint (26,66%). The essential oils of thyme and cinnamon have potential for use in the control of the Botrytis cinerea in in vitro test and the essential oils of peppermint, thyme, tea tree and lemongrass have potential for use in the suppression in strawberry fruits.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41876718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-30DOI: 10.18188/SAP.V19I4.25212
Sonia Purin da Cruz, Kelen Cristina Basso
Brazil is the second world producer of bovine meat, which often relies on preserved forage to decrease seasonality of forage production. Increased forage accumulation may be favored by technologies such as inoculation. Research works on this theme have been conducted with Azospirillum brasilense associated to oats, ryegrass and guinea grass. However, response of jiggs, a widely cultivated perennial grass, to plant growth-promoting microrganisms is poorly understood. Hence this study aimed to assess effects of inoculation on development of Cynodon dactylon cv. Jiggs. Four treatments were tested: T1) control, T2) Inoculation with A. brasilense, T3) Inoculation with Azospirillum, Rhizobium, Pseudomonas and Saccharomyces, T4) Inoculation + Reinoculation with Azospirillum, Rhizobium, Pseudomonas and Saccharomyces. Forage mass, percentage of leaves, stems, dead mass, reproductive structures and leaf/stem ratio were measured. Data were submitted to analysis of variance, and when significant effects were detected, means were separated by LSD Test. Positive effects of inoculation were recorded at all evaluations, mostly concerning percentage of leaves and leaf/stem ratio. A. brasilense improved leaf/stem ratio up to 56%. Also, a 64% increment on this parameter was obtained with Azospirillum, Rhizobium, Pseudomonas and Saccharomyces. Modifications of plant morphology components are important since grasses with more percentage of leaves increase nutritional value of haylage. Morphology of Cynodon dactylon cv. Jiggs is affected by Azospirillum, Rhizobium, Saccharomyces and Pseudomonas, improving aspects related to palatability and preferred grazing of livestock animals.
{"title":"Response of jiggs grass to inoculation with plant growth-promoting microrganisms","authors":"Sonia Purin da Cruz, Kelen Cristina Basso","doi":"10.18188/SAP.V19I4.25212","DOIUrl":"https://doi.org/10.18188/SAP.V19I4.25212","url":null,"abstract":"Brazil is the second world producer of bovine meat, which often relies on preserved forage to decrease seasonality of forage production. Increased forage accumulation may be favored by technologies such as inoculation. Research works on this theme have been conducted with Azospirillum brasilense associated to oats, ryegrass and guinea grass. However, response of jiggs, a widely cultivated perennial grass, to plant growth-promoting microrganisms is poorly understood. Hence this study aimed to assess effects of inoculation on development of Cynodon dactylon cv. Jiggs. Four treatments were tested: T1) control, T2) Inoculation with A. brasilense, T3) Inoculation with Azospirillum, Rhizobium, Pseudomonas and Saccharomyces, T4) Inoculation + Reinoculation with Azospirillum, Rhizobium, Pseudomonas and Saccharomyces. Forage mass, percentage of leaves, stems, dead mass, reproductive structures and leaf/stem ratio were measured. Data were submitted to analysis of variance, and when significant effects were detected, means were separated by LSD Test. Positive effects of inoculation were recorded at all evaluations, mostly concerning percentage of leaves and leaf/stem ratio. A. brasilense improved leaf/stem ratio up to 56%. Also, a 64% increment on this parameter was obtained with Azospirillum, Rhizobium, Pseudomonas and Saccharomyces. Modifications of plant morphology components are important since grasses with more percentage of leaves increase nutritional value of haylage. Morphology of Cynodon dactylon cv. Jiggs is affected by Azospirillum, Rhizobium, Saccharomyces and Pseudomonas, improving aspects related to palatability and preferred grazing of livestock animals.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41601577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-30DOI: 10.18188/SAP.V19I4.25008
M. Besen, Bruno Maia Abdo Rahmen Cassim, Vitor Rodrigues Cordioli, L. Moreira, T. T. Inoue, M. A. Batista
The lime (L) and phosphogypsum (G) promote changes in the chemical attributes of the soil that can alter the development of corn. The objective was to evaluate morphological and yield components of corn after liming and G and to correlate them with yield. The treatments consisted of a 2 x 4 + 3 factorial, with two methods of application of L: surface (SL) and incorporated (IL) to obtain different levels of base saturation (BS): 44, 60, 70 and 90%. Three additional treatments were evaluated involving the use of L and G applied on the surface, being: BS 60% + 3.71 Mg ha-1 of G (60G50); BS 70% + 3.71 Mg ha-1 of G (70G50) and BS 70% + 7.42 Mg ha-1 of G (70G100). Plant height (PH), ear insertion height (EIH) and stem diameter (SD) were not influenced by the treatments. The SL increased the length of the ear (LE), number of grains per row (NGR) and mass of a thousand grains (TMG) up to BS of 72, 80 and 72%, respectively. Thus, there were no advantages of higher base saturation (BS 90%). The combination of L and G promoted improvements in ear diameter (ED), NGF, LE, TMG. The yield in IL was 445 kg ha-1 higher than SL, however when combining G and L the production increased 6 to 12% in relation to BS 44% SL. BS% levels in IL did not influence any response variable. Grain yield was positively correlated to ED, TMG, LE and PH.
石灰(L)和磷石膏(G)促进土壤化学属性的变化，从而改变玉米的生长。目的是评价石灰和G处理后玉米的形态和产量成分，并将它们与产量联系起来。处理由2 × 4 + 3因子组成，采用表面(SL)和结合(IL)两种方法施用L，以获得不同水平的碱饱和度(BS): 44、60、70和90%。评估了三种附加处理，包括L和G在表面的使用，分别是:BS 60% + 3.71 Mg ha-1 G (60G50);BS 70% + 3.71 Mg ha-1 G (70G50)和BS 70% + 7.42 Mg ha-1 G (70G100)。株高(PH)、穗高(EIH)和茎粗(SD)不受处理的影响。施SL可使穗长(LE)、行粒数(NGR)和千粒重(TMG)分别提高72%、80%和72%。因此，更高的碱饱和度(BS 90%)没有优势。L和G组合处理促进了穗径(ED)、NGF、LE和TMG的改善。IL的产量比SL高445 kg hm -1，但G和L组合时，产量比BS的44% SL提高了6 ~ 12%。IL中BS%的水平对任何响应变量都没有影响。籽粒产量与ED、TMG、LE和PH呈正相关。
{"title":"Corn response to phosphogypsum, base saturation and lime application method","authors":"M. Besen, Bruno Maia Abdo Rahmen Cassim, Vitor Rodrigues Cordioli, L. Moreira, T. T. Inoue, M. A. Batista","doi":"10.18188/SAP.V19I4.25008","DOIUrl":"https://doi.org/10.18188/SAP.V19I4.25008","url":null,"abstract":"The lime (L) and phosphogypsum (G) promote changes in the chemical attributes of the soil that can alter the development of corn. The objective was to evaluate morphological and yield components of corn after liming and G and to correlate them with yield. The treatments consisted of a 2 x 4 + 3 factorial, with two methods of application of L: surface (SL) and incorporated (IL) to obtain different levels of base saturation (BS): 44, 60, 70 and 90%. Three additional treatments were evaluated involving the use of L and G applied on the surface, being: BS 60% + 3.71 Mg ha-1 of G (60G50); BS 70% + 3.71 Mg ha-1 of G (70G50) and BS 70% + 7.42 Mg ha-1 of G (70G100). Plant height (PH), ear insertion height (EIH) and stem diameter (SD) were not influenced by the treatments. The SL increased the length of the ear (LE), number of grains per row (NGR) and mass of a thousand grains (TMG) up to BS of 72, 80 and 72%, respectively. Thus, there were no advantages of higher base saturation (BS 90%). The combination of L and G promoted improvements in ear diameter (ED), NGF, LE, TMG. The yield in IL was 445 kg ha-1 higher than SL, however when combining G and L the production increased 6 to 12% in relation to BS 44% SL. BS% levels in IL did not influence any response variable. Grain yield was positively correlated to ED, TMG, LE and PH.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47445010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-27DOI: 10.18188/SAP.V19I4.24677
G. C. Gabardo, Keli Cristina dos Santos, Cristhian Leonardo Fenili, J. L. Petri, B. Schveitzer, Bruno Scapinelli Parizotto
The aim of this study was to evaluate the application of CaCO3 in liquid formulation on the incidence of sunburn and the visual quality of apples, as well as to test application times and dosages of biostimulants in increasing the red Color of the fruits. The study was carried out in partnership with the rural producer, in the orchards located in the municipality of Fraiburgo-SC, in the 2018/2019 harvest. To meet the proposed objectives, two different experiments were conducted: experiment 1 - application of calcium carbonate to reduce the incidence of sunburn in apples and experiment 2 - use of biostimulant to increase the red Color in the epidermis of apples. The variables analyzed were: production data (kg plant-1, fruits plant-1, average fruit mass and aspects related to fruit quality: pulp firmness, soluble solids content, mineral content in fruits, percentage of red Color in the epidermis of the fruits and incidence of sunburn. The tests carried out to promote the red Color of the fruits showed satisfactory results. However, the tests developed aiming at reducing the incidence of sunburn did not show reliable results, since the environmental conditions, mainly the sunstroke, were not favorable to the development of the damage to the fruits, making it impossible to obtain conclusive information on the efficiency of the CaCO3 product. in reducing the incidence of sunburn in apples. The application of CaCO3 as a sunscreen does not improve the calcium content of the harvested fruits. The application of Physiogrow® Color promotes better allocation of the harvested fruits in categories of greater coloration of the epidermis.
{"title":"Strategies to increase red color and reduce the incidence of sunburns on apples","authors":"G. C. Gabardo, Keli Cristina dos Santos, Cristhian Leonardo Fenili, J. L. Petri, B. Schveitzer, Bruno Scapinelli Parizotto","doi":"10.18188/SAP.V19I4.24677","DOIUrl":"https://doi.org/10.18188/SAP.V19I4.24677","url":null,"abstract":"The aim of this study was to evaluate the application of CaCO3 in liquid formulation on the incidence of sunburn and the visual quality of apples, as well as to test application times and dosages of biostimulants in increasing the red Color of the fruits. The study was carried out in partnership with the rural producer, in the orchards located in the municipality of Fraiburgo-SC, in the 2018/2019 harvest. To meet the proposed objectives, two different experiments were conducted: experiment 1 - application of calcium carbonate to reduce the incidence of sunburn in apples and experiment 2 - use of biostimulant to increase the red Color in the epidermis of apples. The variables analyzed were: production data (kg plant-1, fruits plant-1, average fruit mass and aspects related to fruit quality: pulp firmness, soluble solids content, mineral content in fruits, percentage of red Color in the epidermis of the fruits and incidence of sunburn. The tests carried out to promote the red Color of the fruits showed satisfactory results. However, the tests developed aiming at reducing the incidence of sunburn did not show reliable results, since the environmental conditions, mainly the sunstroke, were not favorable to the development of the damage to the fruits, making it impossible to obtain conclusive information on the efficiency of the CaCO3 product. in reducing the incidence of sunburn in apples. The application of CaCO3 as a sunscreen does not improve the calcium content of the harvested fruits. The application of Physiogrow® Color promotes better allocation of the harvested fruits in categories of greater coloration of the epidermis.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41716477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-03DOI: 10.18188/sap.v19i3.24285
Guilherme Valcorte, E. Santini, Maiara Talgatti, Laura Hoffmann de Oliveira, A. G. D. Silveira
The search for natural wood preservatives is becoming increasingly evident due to industrial preservatives presenting several environmental restrictions, such as soil, water and ecosystems contamination. Therefore, the objective of the present study is to evaluate the antifungal activity of Cinnamomum zeylanicum bark natural extract subjected to rotting fungi. In order to obtain the aqueous extract, two methods were performed with different concentrations, 50 and 100 g L -1 , using Pycnoporus sanguineus e Gloeophyllum trabeum, mycelium. In the first, we kept the C. Zeylanicum bark with distilled water for 1 h in water bath and, in the second, the same concentrations were used, however, this was kept in a recipient for 24 h. Then, the extract was subjected to sterilization along with the BDA medium in autoclave at 120oC for 20 min, they were then put in petri dishes for later evaluation of the mycelium root growth compared with the control. The fungi Pycnoporus sanguineus presented higher fungal activity, obtaining total inhibition of all treatments and extract concentrations, however, for the fungi Gloeophyllum trabeum, the 100 g L -1 concentration warmed in water bath obtained a better result than the others. Therefore, it can be concluded that the Cinnamomum zeylanicum aqueous extract presented inhibitory potential. Considering this, we suggest that more studies with this thematic should be carried out, seeking to discover new alternatives for wood preservatives that are less damaging to the environment and to mankind.
由于工业防腐剂存在一些环境限制，如土壤、水和生态系统污染，对天然木材防腐剂的搜索越来越明显。因此，本研究的目的是评价桂皮天然提取物对腐烂真菌的抗真菌活性。为了获得水性提取物，采用不同浓度（50和100g L-1）的红脓杆菌（Pycnoporus sangeus e Gloeophyllum trabeum）菌丝体进行了两种方法。在第一种方法中，我们用蒸馏水将泽兰树皮在水浴中保存1小时，在第二种方法中使用相同的浓度，然而，将其在接受者中保存24小时。然后，将提取物与BDA培养基一起在120℃的高压釜中灭菌20分钟，然后将它们放入培养皿中，以便稍后与对照相比评估菌丝体根的生长。血红碧萝孢具有较高的真菌活性，在所有处理和提取物浓度下都能获得完全的抑制作用，而对于大叶藻来说，在水浴中加热100g L-1的浓度比其他浓度的效果更好。因此，可以得出结论，桂皮水提取物具有抑制潜力。考虑到这一点，我们建议开展更多关于这一主题的研究，寻求发现对环境和人类危害较小的木材防腐剂的新替代品。
{"title":"Antifungal activity of Cinnamomum zeylanicum bark natural extract subjected to xylophagous fungi","authors":"Guilherme Valcorte, E. Santini, Maiara Talgatti, Laura Hoffmann de Oliveira, A. G. D. Silveira","doi":"10.18188/sap.v19i3.24285","DOIUrl":"https://doi.org/10.18188/sap.v19i3.24285","url":null,"abstract":"The search for natural wood preservatives is becoming increasingly evident due to industrial preservatives presenting several environmental restrictions, such as soil, water and ecosystems contamination. Therefore, the objective of the present study is to evaluate the antifungal activity of Cinnamomum zeylanicum bark natural extract subjected to rotting fungi. In order to obtain the aqueous extract, two methods were performed with different concentrations, 50 and 100 g L -1 , using Pycnoporus sanguineus e Gloeophyllum trabeum, mycelium. In the first, we kept the C. Zeylanicum bark with distilled water for 1 h in water bath and, in the second, the same concentrations were used, however, this was kept in a recipient for 24 h. Then, the extract was subjected to sterilization along with the BDA medium in autoclave at 120oC for 20 min, they were then put in petri dishes for later evaluation of the mycelium root growth compared with the control. The fungi Pycnoporus sanguineus presented higher fungal activity, obtaining total inhibition of all treatments and extract concentrations, however, for the fungi Gloeophyllum trabeum, the 100 g L -1 concentration warmed in water bath obtained a better result than the others. Therefore, it can be concluded that the Cinnamomum zeylanicum aqueous extract presented inhibitory potential. Considering this, we suggest that more studies with this thematic should be carried out, seeking to discover new alternatives for wood preservatives that are less damaging to the environment and to mankind.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41835568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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