Até o momento, não houve nenhum trabalho na literatura a respeito da suinocultura na Região Metropolitana de Curitiba, desta forma, este trabalho tem como objetivo caracterizar a produção de suínos nesta região. Os resultados foram obtidos por meio da aplicação de entrevista semiestruturada. Participaram da pesquisa 62 suinocultores distribuídos em 14 municípios da região. A maioria das propriedades avaliadas (51,6%) possuía até 10 hectares, 80,6% utilizava apenas mão de obra familiar e todas as unidades produtoras analisadas combinavam a suinocultura com outras atividades. Do total, 52,5% possuíam até 10 suínos, 80,6% praticavam a produção em ciclo completo e 45,2% mantinham os animais confinados em baias. Na alimentação dos suínos, foi mais frequentemente relatado o uso de milho e sobras de comida, que eram obtidos na própria propriedade. Observou-se que a produção de suínos na Região Metropolitana de Curitiba é uma atividade que desempenha um papel econômico e social para os produtores de pequena escala. Concluiu-se que os locais avaliados, em geral, desenvolvem a suinocultura como atividade de subsistência, mas existem diferenças entre eles, demonstrando que cada um possui características próprias.
{"title":"Caracterização de pequenas propriedades produtoras de suínos em uma região metropolitana do Brasil","authors":"Darleny Eliane Garcia Horwat, Paula Teixeira Poltronieri, Daiane Cristina Ribeiro Dambroski Nack, Juliana Sperotto Brum","doi":"10.18188/sap.v20i2.26784","DOIUrl":"https://doi.org/10.18188/sap.v20i2.26784","url":null,"abstract":"Até o momento, não houve nenhum trabalho na literatura a respeito da suinocultura na Região Metropolitana de Curitiba, desta forma, este trabalho tem como objetivo caracterizar a produção de suínos nesta região. Os resultados foram obtidos por meio da aplicação de entrevista semiestruturada. Participaram da pesquisa 62 suinocultores distribuídos em 14 municípios da região. A maioria das propriedades avaliadas (51,6%) possuía até 10 hectares, 80,6% utilizava apenas mão de obra familiar e todas as unidades produtoras analisadas combinavam a suinocultura com outras atividades. Do total, 52,5% possuíam até 10 suínos, 80,6% praticavam a produção em ciclo completo e 45,2% mantinham os animais confinados em baias. Na alimentação dos suínos, foi mais frequentemente relatado o uso de milho e sobras de comida, que eram obtidos na própria propriedade. Observou-se que a produção de suínos na Região Metropolitana de Curitiba é uma atividade que desempenha um papel econômico e social para os produtores de pequena escala. Concluiu-se que os locais avaliados, em geral, desenvolvem a suinocultura como atividade de subsistência, mas existem diferenças entre eles, demonstrando que cada um possui características próprias. ","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48400251","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 : 2021-09-30DOI: 10.18188/sap.v20i3.27944
Douglas André Würz, Alberto Fontanella Brighenti, Deivid Silva Souza, Juliana Reinher, A. Canossa, L. Rufato
The objective of this work is to compare different periods of leaf removal in the control of this disease in Chardonnay grown in high altitude regions of Santa Catarina - Brazil. The experiments were conducted in São Joaquim city, in 2018 and 2019 growing seasons. The treatments consisted of leaf removal at the phenological stages of full bloom, buckshot berries, pea-sized berries, veraison, and the control treatment, in which the plants without leaf removal. Epidemiological variables were calculated from: beginning of symptom appearance; times to reach maximum disease incidence and severity; maximum disease incidence and severity; and areas under the incidence and severity disease progress curves. The results of the present work show the importance of early leaf removal of Chardonnay in management of B. cinerea, it is recommended to be carried out at the phenological stages of full bloom, buckshot berries and pea-sized berries, as it provides a reduction in the maximum severity of B. cinerea and a reduction of AUSDPC. The rate of disease progression demonstrated that B. cinerea infection and development was faster in plants not submitted to leaf removal. The management of early leaf removal is efficient to prevent the development of B. cinerea in Chardonnay.
{"title":"EARLY LEAF REMOVAL AS STRATEGY TO REDUCE BOTRYTIS BUNCH ROT ON CHARDONNAY GRAPEVINE IN HIGH ALTITUDE REGION OF SANTA CATARINA STATE","authors":"Douglas André Würz, Alberto Fontanella Brighenti, Deivid Silva Souza, Juliana Reinher, A. Canossa, L. Rufato","doi":"10.18188/sap.v20i3.27944","DOIUrl":"https://doi.org/10.18188/sap.v20i3.27944","url":null,"abstract":"The objective of this work is to compare different periods of leaf removal in the control of this disease in Chardonnay grown in high altitude regions of Santa Catarina - Brazil. The experiments were conducted in São Joaquim city, in 2018 and 2019 growing seasons. The treatments consisted of leaf removal at the phenological stages of full bloom, buckshot berries, pea-sized berries, veraison, and the control treatment, in which the plants without leaf removal. Epidemiological variables were calculated from: beginning of symptom appearance; times to reach maximum disease incidence and severity; maximum disease incidence and severity; and areas under the incidence and severity disease progress curves. The results of the present work show the importance of early leaf removal of Chardonnay in management of B. cinerea, it is recommended to be carried out at the phenological stages of full bloom, buckshot berries and pea-sized berries, as it provides a reduction in the maximum severity of B. cinerea and a reduction of AUSDPC. The rate of disease progression demonstrated that B. cinerea infection and development was faster in plants not submitted to leaf removal. The management of early leaf removal is efficient to prevent the development of B. cinerea in Chardonnay.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48512696","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 : 2021-09-30DOI: 10.18188/sap.v20i3.26614
Darcieli Aparecida Cassol, Américo Wagner Júnior, J. Donazzolo, Luís César Cassol, Fabiani Das Dores Abati Miranda, P. C. Conceição
The native fruit trees are of great importance to the Southwest Region of Paraná biome, but little is known about them, especially as the soil fertility in which they are found. Such information is necessary when domestication is intended for orchards usage. The objective of this work was to collect information on the distribution of the native fruit trees in relation to the chemical characteristics of the soil in which they are found, in four municipalities of the Phytophysiognomy Forest and Araucária (DoisVizinhos, Itapejara do Oeste, Verê and São Jorge d'Oeste). The chemical soil characterization for the native fruit trees were applied in the species of jaboticaba tree (Plinia sp.), Surinam cherry tree (Eugenia uniflora L.), sete-capote tree [Campomanesia guazumifolia (Cambess.) O. Berg], cereja-do-mato tree (Eugenia involucrata DC.), guabiroba tree (Campomanesia xanthocarpa Berg), guabiju tree (Myrcianthes pungens), feijoa tree [Acca selowiana (O. Berg) Burret], uvaia tree (E. pyriformis Cambess), yellow and red araça trees (Psidium cattleyanum Sabine). The soil was collected in two hundred properties with the presence of at least some native fruit of natural occurrence, in order to obtain information about the chemical soil characteristics with native fruit presence. In general, only where the native fruits are present, they present weakly acid reaction and high organic matter, calcium, magnesium, phosphorus and potassium, as high CTC.
原生果树在西南地区的parparan生物群系中占有重要地位，但人们对它们知之甚少，特别是对它们所在的土壤肥力知之甚少。当驯化是为了果园使用时，这些信息是必要的。这项工作的目的是在植物地貌森林和Araucária的四个城市(DoisVizinhos, Itapejara do Oeste, Verê和 o Jorge d'Oeste)收集有关本地果树分布与土壤化学特性的信息。对当地果树进行了土壤化学特征分析，研究对象包括:jaboticaba tree (Plinia sp.)， Surinam cherry tree (Eugenia uniflora L.)， sete-capote tree (Cambess.)。[O. Berg]、金丝桃树(Eugenia involucrata DC.)、番石榴树(Campomanesia xanthocarpa Berg)、番石榴树(Myrcianthes pungens)、木香树(Acca selowiana (O. Berg) Burret)、木香树(E. pyriformis Cambess)、黄色和红色木香树(Psidium catleyanum Sabine)。在200个至少有一些自然生长的原生水果的地区收集土壤，以获得有关原生水果存在的化学土壤特征的信息。一般来说，只有本地水果存在的地方，它们呈现弱酸反应和高有机质，钙，镁，磷和钾，作为高CTC。
{"title":"Soil fertility of two hundred properties in the southwest Paraná with the presence of native fruit trees","authors":"Darcieli Aparecida Cassol, Américo Wagner Júnior, J. Donazzolo, Luís César Cassol, Fabiani Das Dores Abati Miranda, P. C. Conceição","doi":"10.18188/sap.v20i3.26614","DOIUrl":"https://doi.org/10.18188/sap.v20i3.26614","url":null,"abstract":"The native fruit trees are of great importance to the Southwest Region of Paraná biome, but little is known about them, especially as the soil fertility in which they are found. Such information is necessary when domestication is intended for orchards usage. The objective of this work was to collect information on the distribution of the native fruit trees in relation to the chemical characteristics of the soil in which they are found, in four municipalities of the Phytophysiognomy Forest and Araucária (DoisVizinhos, Itapejara do Oeste, Verê and São Jorge d'Oeste). The chemical soil characterization for the native fruit trees were applied in the species of jaboticaba tree (Plinia sp.), Surinam cherry tree (Eugenia uniflora L.), sete-capote tree [Campomanesia guazumifolia (Cambess.) O. Berg], cereja-do-mato tree (Eugenia involucrata DC.), guabiroba tree (Campomanesia xanthocarpa Berg), guabiju tree (Myrcianthes pungens), feijoa tree [Acca selowiana (O. Berg) Burret], uvaia tree (E. pyriformis Cambess), yellow and red araça trees (Psidium cattleyanum Sabine). The soil was collected in two hundred properties with the presence of at least some native fruit of natural occurrence, in order to obtain information about the chemical soil characteristics with native fruit presence. In general, only where the native fruits are present, they present weakly acid reaction and high organic matter, calcium, magnesium, phosphorus and potassium, as high CTC.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48803678","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 : 2021-09-30DOI: 10.18188/sap.v20i3.27410
Janaina Silva Sarzi, Marlove Fátima Brião Muniz, J. E. Rabuske, Leonardo Fellipe Da Silva Cruz Couto, Marisa Ana Strahl, Laís Da Silva Martello
The presence of pathogens associated in the bean seeds can represent great risks for the development of the crop. Thus, the seed treatment is essential, and the use of antagonistic microorganisms is an effective tool for the control of various pathogens. Therefore, the objective of the study was to evaluate the sanitary and physiological quality of bean seeds treated with spore suspension and culture filtrates of Trichoderma spp. and the effect of the antagonist on the health quality of bean seeds inoculated with Fusarium oxysporum f. sp. phaseoli and Macrophomina phaseolina. For this, five Trichoderma spp. isolates were used in the form of culture filtrate and spore suspension. Sanity tests were carried out, sanity with inoculation of F. oxysporum f. sp. phaseoli and M. phaseolina and germination test by the paper roll incubation method. The spore suspension of Trichoderma spp. obtained the highest percentage of reduction in the incidence of the pathogen in relation to the culture filtrates, in the seed health tests. Culture filtrates of isolates Eco, TR4 and SC were the most promising ones in relation to the analysis of growth and dry mass of seedlings.
豆类种子中相关病原体的存在可能对作物的发育构成巨大风险。因此，种子处理是必不可少的，拮抗微生物的使用是控制各种病原体的有效工具。因此，本研究的目的是评价木霉孢子悬浮液和培养滤液对大豆种子的卫生品质和生理品质的影响，以及拮抗剂对接种了尖孢镰刀菌(Fusarium oxysporum f. sp. phaseoli)和phaseolmacrophomina的大豆种子卫生品质的影响。为此，以培养滤液和孢子悬浮液的形式使用了5株木霉菌株。采用接种菜豆尖孢菌和菜豆尖孢菌进行了健康试验，并采用纸卷培养法进行了发芽试验。在种子健康试验中，木霉孢子悬浮液与培养滤液相比，病原菌发病率降低的百分比最高。分离株Eco、TR4和SC的培养滤液在幼苗生长和干质量分析方面最有前景。
{"title":"Sanitary and physiological quality of bean seeds treated with Trichoderma spp.","authors":"Janaina Silva Sarzi, Marlove Fátima Brião Muniz, J. E. Rabuske, Leonardo Fellipe Da Silva Cruz Couto, Marisa Ana Strahl, Laís Da Silva Martello","doi":"10.18188/sap.v20i3.27410","DOIUrl":"https://doi.org/10.18188/sap.v20i3.27410","url":null,"abstract":"The presence of pathogens associated in the bean seeds can represent great risks for the development of the crop. Thus, the seed treatment is essential, and the use of antagonistic microorganisms is an effective tool for the control of various pathogens. Therefore, the objective of the study was to evaluate the sanitary and physiological quality of bean seeds treated with spore suspension and culture filtrates of Trichoderma spp. and the effect of the antagonist on the health quality of bean seeds inoculated with Fusarium oxysporum f. sp. phaseoli and Macrophomina phaseolina. For this, five Trichoderma spp. isolates were used in the form of culture filtrate and spore suspension. Sanity tests were carried out, sanity with inoculation of F. oxysporum f. sp. phaseoli and M. phaseolina and germination test by the paper roll incubation method. The spore suspension of Trichoderma spp. obtained the highest percentage of reduction in the incidence of the pathogen in relation to the culture filtrates, in the seed health tests. Culture filtrates of isolates Eco, TR4 and SC were the most promising ones in relation to the analysis of growth and dry mass of seedlings.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45819561","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 : 2021-09-30DOI: 10.18188/sap.v20i3.27815
E. A. Bonini, Daiana Jungbluth, J. Ascari
The interest in the exploration of compounds from the secondary metabolism is seen as a strategic alternative in agriculture, even for the control of invasive plants. The objective of this work was to measure the allelopathic activity of extracts CHCl3 and AcOEt from the leaves of O. puberula on the germination of lettuce. The ethanolic extract was obtained from the dried and milled leaves. The crude extract was solubilized in ethanol and acidified (hydroalcoholic fraction). The C6H14 fraction was obtained by liquid-liquid extraction of the hydroalcoholic fraction, the same procedure was used to extract the AcOEt fraction. The hydroalcoholic fraction was basified and extracted with CHCl3. The chemical profile of the obtained fractions was analyzed by Thin Layer Chromatography using specific revelators that confirmed the presence of alkaloids as majority compounds in AcOEt and CHCl3 fractions. The fractions were evaluated for allelopathic potential on lettuce cypselas at 0.8 g mL‑1, 0.4 g mL-1 and 0.2 g mL-1. In germination tests the germination parameters analyzed were: germination percentage (% G) and germination speed index (IVG). The results indicated significant changes in the %G, IVG and root growth (CR) of the lettuce seeds and seedlings. The ethanolic extract of leaves of O. puberula showed allelopathic influence on the species L. sativa. Both the AcOEt and CHCl3 fractions reduced the germination rates evaluated, and the latter indicated a dose-response inhibition between the treatments applied.
对二次代谢化合物的探索被视为农业中的一种战略选择，即使是对入侵植物的控制也是如此。本研究的目的是测定毛叶提取物CHCl3和AcOEt对莴苣发芽的化感作用。乙醇提取物是从干燥和研磨的叶子中获得的。将粗提取物溶解在乙醇中并酸化（水醇部分）。C6H14级分是通过水醇级分的液-液萃取获得的，使用相同的程序来萃取AcOEt级分。将水醇部分碱化并用CHCl3萃取。使用特定的揭示剂通过薄层色谱法分析所获得的级分的化学性质，证实了生物碱作为AcOEt和CHCl3级分中的大多数化合物的存在。在0.8 g mL-1、0.4 g mL-1和0.2 g mL-1的条件下，评估了这些组分对莴苣的化感潜力。在发芽试验中，分析的发芽参数为：发芽率（%G）和发芽速度指数（IVG）。结果表明，生菜种子和幼苗的%G、IVG和根系生长（CR）发生了显著变化。毛叶乙醇提取物对紫花苜蓿具有化感作用。AcOEt和CHCl3组分都降低了所评估的发芽率，后者表明在所应用的处理之间存在剂量反应抑制。
{"title":"Alelopathic activity of extracts of Ocotea puberula (Rich.) Nees on the germination and initial growth of lettuce","authors":"E. A. Bonini, Daiana Jungbluth, J. Ascari","doi":"10.18188/sap.v20i3.27815","DOIUrl":"https://doi.org/10.18188/sap.v20i3.27815","url":null,"abstract":"The interest in the exploration of compounds from the secondary metabolism is seen as a strategic alternative in agriculture, even for the control of invasive plants. The objective of this work was to measure the allelopathic activity of extracts CHCl3 and AcOEt from the leaves of O. puberula on the germination of lettuce. The ethanolic extract was obtained from the dried and milled leaves. The crude extract was solubilized in ethanol and acidified (hydroalcoholic fraction). The C6H14 fraction was obtained by liquid-liquid extraction of the hydroalcoholic fraction, the same procedure was used to extract the AcOEt fraction. The hydroalcoholic fraction was basified and extracted with CHCl3. The chemical profile of the obtained fractions was analyzed by Thin Layer Chromatography using specific revelators that confirmed the presence of alkaloids as majority compounds in AcOEt and CHCl3 fractions. The fractions were evaluated for allelopathic potential on lettuce cypselas at 0.8 g mL‑1, 0.4 g mL-1 and 0.2 g mL-1. In germination tests the germination parameters analyzed were: germination percentage (% G) and germination speed index (IVG). The results indicated significant changes in the %G, IVG and root growth (CR) of the lettuce seeds and seedlings. The ethanolic extract of leaves of O. puberula showed allelopathic influence on the species L. sativa. Both the AcOEt and CHCl3 fractions reduced the germination rates evaluated, and the latter indicated a dose-response inhibition between the treatments applied.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46458082","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 : 2021-09-30DOI: 10.18188/sap.v20i3.27487
Noélle Khristinne Cordeiro, Gilberto Costa Braga, J. C. Carvalho, Shirlene Souza Oliveira
Postharvest conservation methods such as heat shock can increase the nutritional profile of fruits, inducing greater accumulation of antioxidants that participate in the physiological maintenance of fruits. The objective of this work was to evaluate the antioxidant properties of “Sweet Grape” tomatoes treated with heat shock in pre-storage. “Sweet Grape” tomatoes were heat shocked in hot water (45°C) for 10 min. and stored at room temperature for 9 days. β-carotene, ascorbic acid, total phenolic compounds, and antioxidant activity (DPPH, ABTS, and FRAP) were evaluated every 3 days. The pulp and skin of the treated tomatoes had higher β-carotene content than the control during storage, according to the findings. The content of total phenolic compounds in the pulp reduced, regardless of the treatment. There was a reduction of ascorbic acid, but with significantly higher values in the fruits treated on the third and sixth days of storage. The DPPH antioxidant activity of the pulp decreased, regardless of the treatment. In the skin there was a significant effect of the treatment until the sixth day. There was no variation in the ABTS antioxidant activity of the pulp of the treated tomatoes. There was no significant effect of heat shock on the FRAP antioxidant activity of the pulp until the sixth day. Heat shock promoted an increase in β-carotene in tomato skin, which was related to increases in its DPPH antioxidant activity. The heat shock treatment promoted greater retention of ascorbic acid in the fruit, but it was not able to avoid its reduction during storage. The tomatoes’ antioxidant biochemical response to heat shock is most expressed in their skin.
{"title":"Antioxidant property of “Sweet Grape” tomatoes treated with heat shock","authors":"Noélle Khristinne Cordeiro, Gilberto Costa Braga, J. C. Carvalho, Shirlene Souza Oliveira","doi":"10.18188/sap.v20i3.27487","DOIUrl":"https://doi.org/10.18188/sap.v20i3.27487","url":null,"abstract":"Postharvest conservation methods such as heat shock can increase the nutritional profile of fruits, inducing greater accumulation of antioxidants that participate in the physiological maintenance of fruits. The objective of this work was to evaluate the antioxidant properties of “Sweet Grape” tomatoes treated with heat shock in pre-storage. “Sweet Grape” tomatoes were heat shocked in hot water (45°C) for 10 min. and stored at room temperature for 9 days. β-carotene, ascorbic acid, total phenolic compounds, and antioxidant activity (DPPH, ABTS, and FRAP) were evaluated every 3 days. The pulp and skin of the treated tomatoes had higher β-carotene content than the control during storage, according to the findings. The content of total phenolic compounds in the pulp reduced, regardless of the treatment. There was a reduction of ascorbic acid, but with significantly higher values in the fruits treated on the third and sixth days of storage. The DPPH antioxidant activity of the pulp decreased, regardless of the treatment. In the skin there was a significant effect of the treatment until the sixth day. There was no variation in the ABTS antioxidant activity of the pulp of the treated tomatoes. There was no significant effect of heat shock on the FRAP antioxidant activity of the pulp until the sixth day. Heat shock promoted an increase in β-carotene in tomato skin, which was related to increases in its DPPH antioxidant activity. The heat shock treatment promoted greater retention of ascorbic acid in the fruit, but it was not able to avoid its reduction during storage. The tomatoes’ antioxidant biochemical response to heat shock is most expressed in their skin.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47361018","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}
Tree pruning in urban centers generates residues, which can be used as organic composites in the production of crisp lettuce seedlings. Given the above, the aim of this work was to perform a physicochemical analysis of the gongocomposite in the production of crisp lettuce seedlings. The experiment was carried out in a rural property in Reserva do Cabaçal-MT, with a completely randomized design comprising five treatments and five replications. To obtain the substrates, the gongocomposite was made from Trigoniulus corallinus, in the following proportions: 40% of Paspalum notatum (grass) + 30% of the pruning residues of tree species Terminalia catappa, Licania tomentosa, Senna siamea, and Albizia lebbeck composed of leaves, leaflets, and fine branches, dried and crushed, where the process lasted 120 days. Substrates were evaluated regarding physical and chemical properties. At 24 days after sowing, shoot fresh and dry mass, root fresh and dry mass, root volume, seedling vigor, and stability of lettuce clods were measured. The gongocomposite from the grass (Paspalum notatum) + oiti + albizia (40% + 30% pruning residues + 30% pruning residues) presented better physicochemical characteristics and better initial development of lettuce seedlings.
城市中心的树木修剪会产生残留物，这些残留物可以用作生产脆生菜幼苗的有机复合物。鉴于上述情况，本工作的目的是对生产脆生菜幼苗中的贡果复合物进行理化分析。该实验在Reserva do Cabaçal MT的一处农村地区进行，采用完全随机设计，包括五个处理和五个重复。为了获得基质，龚复合物由珊瑚三角藻按以下比例制成：40%的百年香（草）+30%的由叶子、小叶和细枝组成的树种Terminalia catappa、Licania comtoosa、Senna siamea和Albizia lebbeck的修剪残留物，干燥并粉碎，该过程持续120天。对基板的物理和化学性能进行了评估。在播种后24天，测定了莴苣地上部鲜干质量、根系鲜干质量和根系体积、幼苗活力和稳定性。由草（Paspalum notatum）+oiti+albizia（40%+30%修剪残留物+30%修剪残渣）制成的珙桐复合物具有较好的理化特性和较好的生菜幼苗初期发育。
{"title":"Physicochemical analysis of a gongocomposite in the initial production of crisp lettuce seedlings","authors":"Amarildo Rodrigues Gomes, Luan Buzatt Castilho, Edmilson Candido Duarte, Elizene Vargas Borges, Pablo Wenderson Ribeiro Coutinho","doi":"10.18188/sap.v20i3.27880","DOIUrl":"https://doi.org/10.18188/sap.v20i3.27880","url":null,"abstract":"Tree pruning in urban centers generates residues, which can be used as organic composites in the production of crisp lettuce seedlings. Given the above, the aim of this work was to perform a physicochemical analysis of the gongocomposite in the production of crisp lettuce seedlings. The experiment was carried out in a rural property in Reserva do Cabaçal-MT, with a completely randomized design comprising five treatments and five replications. To obtain the substrates, the gongocomposite was made from Trigoniulus corallinus, in the following proportions: 40% of Paspalum notatum (grass) + 30% of the pruning residues of tree species Terminalia catappa, Licania tomentosa, Senna siamea, and Albizia lebbeck composed of leaves, leaflets, and fine branches, dried and crushed, where the process lasted 120 days. Substrates were evaluated regarding physical and chemical properties. At 24 days after sowing, shoot fresh and dry mass, root fresh and dry mass, root volume, seedling vigor, and stability of lettuce clods were measured. The gongocomposite from the grass (Paspalum notatum) + oiti + albizia (40% + 30% pruning residues + 30% pruning residues) presented better physicochemical characteristics and better initial development of lettuce seedlings.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44694194","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 : 2021-09-30DOI: 10.18188/sap.v20i3.27808
Diana Feitosa da Silva, Elizene Vargas Borges, Pablo Wenderson Ribeiro Coutinho
As for most plant species occurring in forests, Caesalpinia ferrea Mart. Ex Tul. has been presenting some phytosanitary problems, and thus research efforts have been increased considering the use of alternative treatments using as basis essential oils like Thymus vulgaris L., which is responsible for antimicrobial activity. The objective of this study was to evaluate the influence of the essential oil from thyme on the sanitary and physiological quality of ironwood seeds. The experiment was carried out in a completely randomized design with four repetitions with 50 seeds. The treatments considered the use of the thyme essential oil at concentrations of 0, 2, 4, 6, 8, and 10%. The ironwood seeds were obtained from matrices taken at random, moved to the laboratory, where sanitary evaluations were carried out using the Blotter test method in 25±2°C temperature and in a 12h photoperiod. After 7 days, with the aid of a microscope, fungi were identified. Next, physiological analysis were conducted — germination, first count of germination, and germination speed index. Measurements of the shoot and root parts of the seedlings, shoot dry matter, and root dry matter were taken. According to the obtained results in this work, it was verified that the T. vulgaris dry matter in all concentrations presented different results, noting that when the oil concentration increases, the occurrence of pathogens decreases, which proves that the T. vulgaris essential oil has specific action on some genera of fungi.
{"title":"Essential oil of Thymus vulgaris on the sanitary and physiological quality of seeds of Caesalpinia ferrea","authors":"Diana Feitosa da Silva, Elizene Vargas Borges, Pablo Wenderson Ribeiro Coutinho","doi":"10.18188/sap.v20i3.27808","DOIUrl":"https://doi.org/10.18188/sap.v20i3.27808","url":null,"abstract":"As for most plant species occurring in forests, Caesalpinia ferrea Mart. Ex Tul. has been presenting some phytosanitary problems, and thus research efforts have been increased considering the use of alternative treatments using as basis essential oils like Thymus vulgaris L., which is responsible for antimicrobial activity. The objective of this study was to evaluate the influence of the essential oil from thyme on the sanitary and physiological quality of ironwood seeds. The experiment was carried out in a completely randomized design with four repetitions with 50 seeds. The treatments considered the use of the thyme essential oil at concentrations of 0, 2, 4, 6, 8, and 10%. The ironwood seeds were obtained from matrices taken at random, moved to the laboratory, where sanitary evaluations were carried out using the Blotter test method in 25±2°C temperature and in a 12h photoperiod. After 7 days, with the aid of a microscope, fungi were identified. Next, physiological analysis were conducted — germination, first count of germination, and germination speed index. Measurements of the shoot and root parts of the seedlings, shoot dry matter, and root dry matter were taken. According to the obtained results in this work, it was verified that the T. vulgaris dry matter in all concentrations presented different results, noting that when the oil concentration increases, the occurrence of pathogens decreases, which proves that the T. vulgaris essential oil has specific action on some genera of fungi.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44218169","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 : 2021-09-30DOI: 10.18188/sap.v20i3.27267
Gentil Carneiro Gabardo, Keli Cristina Dos Santos, Cristhian Leonardo Fenili, J. Bueno, Rafaela Silveira Vargas, J. Pereira
Plants can develop anatomical variations depending on the cultivation environment, and such characteristics can influence their physiology and significantly alter their capacity. The aim of the study was to evaluate the anatomical characteristics of the leaves of ‘Niágara Rosada’ grape varieties grown in different growing environments and different regions in the 2019/20 production cycle. An experiment was carried out in three cultivation conditions (full sun, under canvas and under plastic) in the region of Lages-SC. Another test was conducted in orchards with crops under full sun, in the regions of Lages-SC and Caçador-SC, altitudes of 1100 and 900 m, respectively. The variables analyzed were: stomatal density and stoma size, plant production and average cluster mass and chlorophyll index. In the first experiment, higher stomatal density was observed in plants grown in full sun compared to plants under canvas and greater stomatal area in plants grown under plastic in relation to the other conditions. The chlorophyll index was higher in plants grown under canvas, with no differences for plants grown under plastic. Plants grown under plastic showed higher production and average mass of clusters compared to plants grown under canvas and full sun. The stomatal density of vines produced in Caçador is higher than vines produced in Lages. The cultivation of vines under plastic cover is very advantageous in several aspects, such as: increased production and also protects against natural events, such as hail.
{"title":"Leaf anatomy of cultivated vine plants in cultivation environments and altitude regions","authors":"Gentil Carneiro Gabardo, Keli Cristina Dos Santos, Cristhian Leonardo Fenili, J. Bueno, Rafaela Silveira Vargas, J. Pereira","doi":"10.18188/sap.v20i3.27267","DOIUrl":"https://doi.org/10.18188/sap.v20i3.27267","url":null,"abstract":"Plants can develop anatomical variations depending on the cultivation environment, and such characteristics can influence their physiology and significantly alter their capacity. The aim of the study was to evaluate the anatomical characteristics of the leaves of ‘Niágara Rosada’ grape varieties grown in different growing environments and different regions in the 2019/20 production cycle. An experiment was carried out in three cultivation conditions (full sun, under canvas and under plastic) in the region of Lages-SC. Another test was conducted in orchards with crops under full sun, in the regions of Lages-SC and Caçador-SC, altitudes of 1100 and 900 m, respectively. The variables analyzed were: stomatal density and stoma size, plant production and average cluster mass and chlorophyll index. In the first experiment, higher stomatal density was observed in plants grown in full sun compared to plants under canvas and greater stomatal area in plants grown under plastic in relation to the other conditions. The chlorophyll index was higher in plants grown under canvas, with no differences for plants grown under plastic. Plants grown under plastic showed higher production and average mass of clusters compared to plants grown under canvas and full sun. The stomatal density of vines produced in Caçador is higher than vines produced in Lages. The cultivation of vines under plastic cover is very advantageous in several aspects, such as: increased production and also protects against natural events, such as hail.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46395082","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 : 2021-09-30DOI: 10.18188/sap.v20i3.28188
Luiz Daniel Rodrigues da Silva, José Manoel Ferreira de Lima Cruz
Sugarcane is a crop of worldwide economic value used in sugar, electricity, and alcohol production. This review demonstrates the importance of the main micronutrients and their respective effects on the development and yield of sugarcane. Micronutrient deficiency is one of the limiting factors in sugarcane productivity in producing regions. This deficit is related to several aspects, such as fertilizer use with low micronutrient levels, increased agricultural productivity, and decreased productivity levels of soil organic matter. Thus, proper fertilization management can circumvent the limiting factors such as the foliar application of boron and soil fertilization of zinc, both resulting in greater stem production. Molybdenum increases biological nitrogen fixation in sugarcane and contributes to the accumulation of N in the plant. Iron and manganese are involved in chlorophyll content and dry matter accumulation in sugarcane. In this review, we show the contributions of fertilization with microelements to the development of the sugarcane sector. In this perspective, more research is needed on micronutrient fertilization to increase sugarcane productivity in different soil and climate conditions.
{"title":"Micronutrient nutrition in sugarcane: a brief review","authors":"Luiz Daniel Rodrigues da Silva, José Manoel Ferreira de Lima Cruz","doi":"10.18188/sap.v20i3.28188","DOIUrl":"https://doi.org/10.18188/sap.v20i3.28188","url":null,"abstract":"Sugarcane is a crop of worldwide economic value used in sugar, electricity, and alcohol production. This review demonstrates the importance of the main micronutrients and their respective effects on the development and yield of sugarcane. Micronutrient deficiency is one of the limiting factors in sugarcane productivity in producing regions. This deficit is related to several aspects, such as fertilizer use with low micronutrient levels, increased agricultural productivity, and decreased productivity levels of soil organic matter. Thus, proper fertilization management can circumvent the limiting factors such as the foliar application of boron and soil fertilization of zinc, both resulting in greater stem production. Molybdenum increases biological nitrogen fixation in sugarcane and contributes to the accumulation of N in the plant. Iron and manganese are involved in chlorophyll content and dry matter accumulation in sugarcane. In this review, we show the contributions of fertilization with microelements to the development of the sugarcane sector. In this perspective, more research is needed on micronutrient fertilization to increase sugarcane productivity in different soil and climate conditions.","PeriodicalId":30289,"journal":{"name":"Scientia Agraria Paranaensis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46817894","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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