Pub Date : 2022-10-14DOI: 10.36812/pag.2022281193-205
Sueli Fiorini Sommer, M. Richter
Milk is a rich source of nutrients that are important for human health. Due to its high nutritional value, it is considered an ideal substrate for the proliferation of pathogenic and deteriorating micro-organisms. Therefore, some control measures are necessary to guarantee the quality of milk and dairy products. The aim of this review is to present the main quality parameters in accordance with Brazilian legislation, as well as to provide data and studies on the characteristics and quality of milk in different regions of Brazil. For this purpose, besides consulting the legislation, articles were used located by the following keywords: "Milk quality", "Milk preservation" and "Milk storage", in the databases "Google Scholar", "SciELO" and "LILACs". It was found that even with control and regulation of dairy farming, failures can still occur in the various regions of the country, which can be minimised with technical assistance and rural extension.
{"title":"Milk quality and characterization of different geographic regions of Brazil: a literature review","authors":"Sueli Fiorini Sommer, M. Richter","doi":"10.36812/pag.2022281193-205","DOIUrl":"https://doi.org/10.36812/pag.2022281193-205","url":null,"abstract":"Milk is a rich source of nutrients that are important for human health. Due to its high nutritional value, it is considered an ideal substrate for the proliferation of pathogenic and deteriorating micro-organisms. Therefore, some control measures are necessary to guarantee the quality of milk and dairy products. The aim of this review is to present the main quality parameters in accordance with Brazilian legislation, as well as to provide data and studies on the characteristics and quality of milk in different regions of Brazil. For this purpose, besides consulting the legislation, articles were used located by the following keywords: \"Milk quality\", \"Milk preservation\" and \"Milk storage\", in the databases \"Google Scholar\", \"SciELO\" and \"LILACs\". It was found that even with control and regulation of dairy farming, failures can still occur in the various regions of the country, which can be minimised with technical assistance and rural extension.","PeriodicalId":33658,"journal":{"name":"Pesquisa Agropecuaria Gaucha","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47750121","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 : 2022-09-08DOI: 10.36812/pag.2022281174-192
Priscila de Sousa Rollo Pereira, P. V. D. Souza, S. L. Stürmer, Vinicius Ribeiro Jardim, L. Z. Guasso, M. Gonzatto, S. F. Schwarz
O objetivo foi avaliar a influência da sazonalidade na colonização micorrízica nas raízes de seis porta-enxertos em pomar de tangerineiras ‘Montenegrina’ (Citrus deliciosa Tenore). Os porta-enxertos avaliados foram: ‘Flying Dragon’ [Poncirus trifoliata var. monstrosa (T. Ito) Swing.]; citrangeiro ‘Troyer’ [C. sinensis (L.) Osb. × P. trifoliata (L.) Raf.]; citrumeleiro ‘Swingle’ [C. paradisi Macf. × P. trifoliata]; limoeiro ‘Cravo’ (C. limonia Osb.); limoeiro ‘Volkameriano’ (C. volkameriana Ten. & Pasq.); laranjeira ‘Caipira’ (C. sinensis). Realizou-se a coleta de radicelas em quatro estações. Determinou-se a densidade de estruturas, colonização radicular (número de segmentos infectados/total analisado) e densidade de esporos. Os porta-enxertos apresentaram porcentagens elevadas de colonização na primavera (acima de 96,60%). No inverno, apenas ‘Swingle’ e ‘Cravo’ apresentaram altas taxas de colonização (96,60 e 95,00 %, respectivamente). Já, ‘Flying Dragon’, ‘Troyer’ e ‘Volkameriano’ apresentaram baixa colonização nessa estação (11,60 a 33,30 %). ‘Flying Dragon’ apresentou uma redução gradativa de colonização com o decorrer da época estudada: na primavera (100,00 %), verão (95,00 %), outono (63,30 %) e inverno (33,30 %). A colonização micorrízica ocorre naturalmente e de forma elevada nos porta-enxertos, variando entre os porta-enxertos e as épocas do ano. Há uma correlação negativa entre conteúdo nutricional foliar e presença de FMAs.
目的是评估季节性对“黑山”柑橘(Citrus deliciosa Tenore) 6个砧木根菌根定植的影响。砧木评价为:“飞龙”[Poncirus trifoliata var. monstrosa (T. Ito) Swing.];“Troyer”(C。茶树(l)厨房。× P. trifoliata (L.)皇家空军);“摇摆”柑橘树[C。Macf总编。× P. trifoliata];柠檬“丁香”(C. limonia Osb.);volkamerian (C. volkameriana Ten)。& Pasq);“Caipira”(C. sinensis)。在四个站采集根系。测定了结构密度、根定植(感染节段数/总分析)和孢子密度。砧木春季定植率较高(96.60%以上)。在冬季，只有“Swingle”和“Cravo”的定植率较高(分别为96.60和95.00%)。“飞龙”、“特洛伊”和“Volkameriano”在这个季节的殖民化率较低(11.60 - 33.30%)。飞龙在春季(1000%)、夏季(95.00%)、秋季(63.30%)和冬季(33.30%)的定植率均逐渐下降。菌根定植在砧木中自然发生，并在砧木和季节之间变化。叶片营养含量与amf存在负相关。
{"title":"Colonização por micorrizas arbusculares em tangerineiras ‘Montenegrina’: interação entre porta-enxertos e sazonalidade","authors":"Priscila de Sousa Rollo Pereira, P. V. D. Souza, S. L. Stürmer, Vinicius Ribeiro Jardim, L. Z. Guasso, M. Gonzatto, S. F. Schwarz","doi":"10.36812/pag.2022281174-192","DOIUrl":"https://doi.org/10.36812/pag.2022281174-192","url":null,"abstract":"O objetivo foi avaliar a influência da sazonalidade na colonização micorrízica nas raízes de seis porta-enxertos em pomar de tangerineiras ‘Montenegrina’ (Citrus deliciosa Tenore). Os porta-enxertos avaliados foram: ‘Flying Dragon’ [Poncirus trifoliata var. monstrosa (T. Ito) Swing.]; citrangeiro ‘Troyer’ [C. sinensis (L.) Osb. × P. trifoliata (L.) Raf.]; citrumeleiro ‘Swingle’ [C. paradisi Macf. × P. trifoliata]; limoeiro ‘Cravo’ (C. limonia Osb.); limoeiro ‘Volkameriano’ (C. volkameriana Ten. & Pasq.); laranjeira ‘Caipira’ (C. sinensis). Realizou-se a coleta de radicelas em quatro estações. Determinou-se a densidade de estruturas, colonização radicular (número de segmentos infectados/total analisado) e densidade de esporos. Os porta-enxertos apresentaram porcentagens elevadas de colonização na primavera (acima de 96,60%). No inverno, apenas ‘Swingle’ e ‘Cravo’ apresentaram altas taxas de colonização (96,60 e 95,00 %, respectivamente). Já, ‘Flying Dragon’, ‘Troyer’ e ‘Volkameriano’ apresentaram baixa colonização nessa estação (11,60 a 33,30 %). ‘Flying Dragon’ apresentou uma redução gradativa de colonização com o decorrer da época estudada: na primavera (100,00 %), verão (95,00 %), outono (63,30 %) e inverno (33,30 %). A colonização micorrízica ocorre naturalmente e de forma elevada nos porta-enxertos, variando entre os porta-enxertos e as épocas do ano. Há uma correlação negativa entre conteúdo nutricional foliar e presença de FMAs.","PeriodicalId":33658,"journal":{"name":"Pesquisa Agropecuaria Gaucha","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69752740","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 : 2022-06-30DOI: 10.36812/pag.2022281139-155
Rafaela Meneguzzo, W. Silvestre, Gabriel Fernandes Pauletti
Garlic crop is widely distributed in the Serra Gaúcha region, South Brazil. However, there is little information relative to irrigation in garlic, and on the influence of bulbil planting position in the development of the crop. Silicon is being used in garlic as an auxiliary fertilizer, but it is necessary to study further its effects in the crop. This study aimed to verify the effect of different irrigation regimes based on the evapotranspiration and empirically, evaluate the development of the plants that germinated under different planting positions, and observe the physiology of the plants according to the different doses of calcium silicate applied to the soil. Experiments were carried out in the municipality of São Marcos, using a design of randomized blocks, with four repetitions in each treatment. Plant height, stalk height and diameter, germination percentage of the bulbils, and average bulb mass were evaluated. The observed results indicated that irrigation induced higher plant heights when it was carried out based on evapotranspiration; planting with the bulbils face up have had the smaller germination time and the highest average bulb mass; the application of silicon at the highest dose (800 kg·ha-1) increased the average bulb mass by approximately 18 %.
{"title":"Effect of irrigation, planting position, and application of calcium silicate on garlic development in ‘Serra Gaúcha’ region, South Brazil","authors":"Rafaela Meneguzzo, W. Silvestre, Gabriel Fernandes Pauletti","doi":"10.36812/pag.2022281139-155","DOIUrl":"https://doi.org/10.36812/pag.2022281139-155","url":null,"abstract":"Garlic crop is widely distributed in the Serra Gaúcha region, South Brazil. However, there is little information relative to irrigation in garlic, and on the influence of bulbil planting position in the development of the crop. Silicon is being used in garlic as an auxiliary fertilizer, but it is necessary to study further its effects in the crop. This study aimed to verify the effect of different irrigation regimes based on the evapotranspiration and empirically, evaluate the development of the plants that germinated under different planting positions, and observe the physiology of the plants according to the different doses of calcium silicate applied to the soil. Experiments were carried out in the municipality of São Marcos, using a design of randomized blocks, with four repetitions in each treatment. Plant height, stalk height and diameter, germination percentage of the bulbils, and average bulb mass were evaluated. The observed results indicated that irrigation induced higher plant heights when it was carried out based on evapotranspiration; planting with the bulbils face up have had the smaller germination time and the highest average bulb mass; the application of silicon at the highest dose (800 kg·ha-1) increased the average bulb mass by approximately 18 %.","PeriodicalId":33658,"journal":{"name":"Pesquisa Agropecuaria Gaucha","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47029865","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 : 2022-06-17DOI: 10.36812/pag.2022281111-124
A. C. Fluck, Michelle de Almeida Ollé, H. Alfaya, J. Reis, João P. da Silva
We aimed to evaluate the seasonal dynamics of magnesium (Mg) in the system soil - plant - animal. It was conducted in two natural rangeland areas on two types of undisturbed soils (medium-clayey texture) in the Serra do Sudeste region (Rio Grande do Sul State, Brazil). In each area, 12 heifers were kept under continuous extensive grazing for twelve months without mineral supplementation. Samples of soil and vegetation were collected monthly from 16 fixed points and blood serum from each of the animals in each area monthly for the determination of Mg levels. The data were analyzed by analysis of variance, decomposition of the annual variation of the response variables and regression (harmonic analysis) for adjustment of function to express this variation. The Mg content in the soils of the two areas was high (1.86 ± 0.045 cmolc.dm-3). Mg levels in the vegetation (0.23 ± 0.0025 % DM) are sufficient to meet the needs of all categories of ruminants. The Mg contents in the blood serum (3.05 ± 0.0025) of grazing animals are considered medium to high and in normal levels. Mg supplementation is suggested in the cold season months for the most demanding animal categories (gestating and lactating females).
研究了土壤-植物-动物系统中镁元素的季节性动态。该研究在巴西苏德斯特山脉(Serra do Sudeste)地区的两种未受干扰的土壤(中粘土质地)上的两个天然牧场进行。在每个地区，12头小母牛连续放牧12个月，不补充矿物质。每月在16个定点采集土壤和植被样本，每月在每个地区采集每只动物的血清，测定Mg水平。对数据进行方差分析，分解响应变量的年变化，回归(调和分析)调整函数来表达这种变化。两区土壤Mg含量均较高(1.86±0.045 cmol .dm-3)。植被中Mg含量(0.23±0.0025% DM)足以满足各类反刍动物的需要。放牧动物血清Mg含量(3.05±0.0025)属于中、高、正常水平。对于要求最高的动物类别(妊娠期和哺乳期雌性)，建议在寒冷季节补充镁。
{"title":"Seasonal dynamics of magnesium in rangeland areas of Southeastern region of Rio Grande do Sul State/Brazil: 1. field research","authors":"A. C. Fluck, Michelle de Almeida Ollé, H. Alfaya, J. Reis, João P. da Silva","doi":"10.36812/pag.2022281111-124","DOIUrl":"https://doi.org/10.36812/pag.2022281111-124","url":null,"abstract":"We aimed to evaluate the seasonal dynamics of magnesium (Mg) in the system soil - plant - animal. It was conducted in two natural rangeland areas on two types of undisturbed soils (medium-clayey texture) in the Serra do Sudeste region (Rio Grande do Sul State, Brazil). In each area, 12 heifers were kept under continuous extensive grazing for twelve months without mineral supplementation. Samples of soil and vegetation were collected monthly from 16 fixed points and blood serum from each of the animals in each area monthly for the determination of Mg levels. The data were analyzed by analysis of variance, decomposition of the annual variation of the response variables and regression (harmonic analysis) for adjustment of function to express this variation. The Mg content in the soils of the two areas was high (1.86 ± 0.045 cmolc.dm-3). Mg levels in the vegetation (0.23 ± 0.0025 % DM) are sufficient to meet the needs of all categories of ruminants. The Mg contents in the blood serum (3.05 ± 0.0025) of grazing animals are considered medium to high and in normal levels. Mg supplementation is suggested in the cold season months for the most demanding animal categories (gestating and lactating females).","PeriodicalId":33658,"journal":{"name":"Pesquisa Agropecuaria Gaucha","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42952878","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 : 2022-06-17DOI: 10.36812/pag.2022281125-138
A. C. Fluck, H. Alfaya, Michelle de Almeida Ollé, João P. da Silva, J. Reis
We aimed to evaluate the dynamics of magnesium (Mg) in the soil - plant – animal chain. It was conducted in two natural rangeland areas on two types of undisturbed (virgin) soils (medium/clayey texture) in the Serra do Sudeste (Rio Grande do Sul State, Brazil). In each of these areas, 12 animals (heifers) were kept under continuous extensive grazing for twelve months without mineral supplementation. Every month, samples of soil and vegetation were collected at 16 fixed points (radius: 25 m) as well as blood serum from each of the animals in each area for the determination of Mg and other minerals levels. The data were analyzed using the analysis of variance, decomposition of the annual variation of the response variables and periodic regression (harmonic analysis) for adjustment of function to express this variation. The relationship of Mg with other variables within the links of the soil-plant-animal chain is influenced by some factors such as physicochemical and biological soil reactions, floristic composition and environmental conditions. In natural non perturbed rangeland areas the organic matter is the main colloid of the soil for the availability of magnesium to plants and, consequently, to the animals.
{"title":"Dynamics of magnesium in rangeland areas of Southeastern region of the State Rio Grande do Sul/Brazil. 2. Correlations","authors":"A. C. Fluck, H. Alfaya, Michelle de Almeida Ollé, João P. da Silva, J. Reis","doi":"10.36812/pag.2022281125-138","DOIUrl":"https://doi.org/10.36812/pag.2022281125-138","url":null,"abstract":"We aimed to evaluate the dynamics of magnesium (Mg) in the soil - plant – animal chain. It was conducted in two natural rangeland areas on two types of undisturbed (virgin) soils (medium/clayey texture) in the Serra do Sudeste (Rio Grande do Sul State, Brazil). In each of these areas, 12 animals (heifers) were kept under continuous extensive grazing for twelve months without mineral supplementation. Every month, samples of soil and vegetation were collected at 16 fixed points (radius: 25 m) as well as blood serum from each of the animals in each area for the determination of Mg and other minerals levels. The data were analyzed using the analysis of variance, decomposition of the annual variation of the response variables and periodic regression (harmonic analysis) for adjustment of function to express this variation. The relationship of Mg with other variables within the links of the soil-plant-animal chain is influenced by some factors such as physicochemical and biological soil reactions, floristic composition and environmental conditions. In natural non perturbed rangeland areas the organic matter is the main colloid of the soil for the availability of magnesium to plants and, consequently, to the animals.","PeriodicalId":33658,"journal":{"name":"Pesquisa Agropecuaria Gaucha","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44858872","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 : 2022-05-17DOI: 10.36812/pag.202228194-110
Ilson Ghellar Junior, Júlio Antoniolli, K. Krycki, Mariana Lima, R. Weiler, A. Brunes, C. Simioni, M. Dall’Agnol
In Southern Brazil, much of the livestock activity is developed in native grasslands. Studies about forage traits, frost tolerance and nutritional value of native forage species there has been increasing with better results of productive efficiency (animal gain). The objective of this work was to evaluate forage yield of forty-five intraspecific hybrids of segregating progenies of bahiagrass (Paspalum notatum Flügge) from agronomic analyses under greenhouse conditions and determine the reproduction mode of selected hybrids. The hybrids had great variability in all agronomic characteristics measured. The plants with the highest total dry mass production were 17PN10P3 and 17PN29P1 (sexual reproduction), 17PN10P5, 17PN16P3 and 17PN28P4 (apomictic reproduction). The high correlation of the total dry mass with tillers number and with the root dry mass demonstrate that the hybrids can be used as forage and also to reduce the effects of soil erosion in degraded areas. The evaluations of agronomic characteristics and the determination of the mode of reproduction of the selected hybrids allowed the identification of promising genetic materials for forage yield and to soil cover, selecting them for additional stages in the breeding program.
{"title":"Forage yield of tetraploid bahiagrass hybrids","authors":"Ilson Ghellar Junior, Júlio Antoniolli, K. Krycki, Mariana Lima, R. Weiler, A. Brunes, C. Simioni, M. Dall’Agnol","doi":"10.36812/pag.202228194-110","DOIUrl":"https://doi.org/10.36812/pag.202228194-110","url":null,"abstract":"In Southern Brazil, much of the livestock activity is developed in native grasslands. Studies about forage traits, frost tolerance and nutritional value of native forage species there has been increasing with better results of productive efficiency (animal gain). The objective of this work was to evaluate forage yield of forty-five intraspecific hybrids of segregating progenies of bahiagrass (Paspalum notatum Flügge) from agronomic analyses under greenhouse conditions and determine the reproduction mode of selected hybrids. The hybrids had great variability in all agronomic characteristics measured. The plants with the highest total dry mass production were 17PN10P3 and 17PN29P1 (sexual reproduction), 17PN10P5, 17PN16P3 and 17PN28P4 (apomictic reproduction). The high correlation of the total dry mass with tillers number and with the root dry mass demonstrate that the hybrids can be used as forage and also to reduce the effects of soil erosion in degraded areas. The evaluations of agronomic characteristics and the determination of the mode of reproduction of the selected hybrids allowed the identification of promising genetic materials for forage yield and to soil cover, selecting them for additional stages in the breeding program.","PeriodicalId":33658,"journal":{"name":"Pesquisa Agropecuaria Gaucha","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49447785","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 : 2022-05-05DOI: 10.36812/pag.202228170-93
Thamara Luísa Staudt Schneider, R. Lazzari
The increase in demand for fish production drives the search for food strategies to maximize productivity. In this review, the nutritional implications of the use of exogenous proteases on fish growth were described. Exogenous proteases help in digestive processes, acting in the hydrolysis of macromolecules and in the release of smaller particles, such as amino acids and peptides. Dietary supplementation improves fish growth, mainly due to the availability and greater use of nutrients. The action of proteases is directly linked to better intake, feed efficiency and protein synthesis. On the other hand, enzyme activity depends on substrate and dietary composition as there are limitations on digestibility. Furthermore, in feed processing, thermal stability and the form of inclusion of the protease influence its efficiency. However, the increase in fish weight gain can offset the cost of including the enzyme in the diet. However, there are still gaps regarding the effects of protease in fish feeding, for example, enzyme: specific substrate and enzyme: digestive system ratio; and, stabilization technologies (mainly extruded diets), so further studies are needed.
{"title":"Nutritional implications of exogenous proteases in fish feeding","authors":"Thamara Luísa Staudt Schneider, R. Lazzari","doi":"10.36812/pag.202228170-93","DOIUrl":"https://doi.org/10.36812/pag.202228170-93","url":null,"abstract":"The increase in demand for fish production drives the search for food strategies to maximize productivity. In this review, the nutritional implications of the use of exogenous proteases on fish growth were described. Exogenous proteases help in digestive processes, acting in the hydrolysis of macromolecules and in the release of smaller particles, such as amino acids and peptides. Dietary supplementation improves fish growth, mainly due to the availability and greater use of nutrients. The action of proteases is directly linked to better intake, feed efficiency and protein synthesis. On the other hand, enzyme activity depends on substrate and dietary composition as there are limitations on digestibility. Furthermore, in feed processing, thermal stability and the form of inclusion of the protease influence its efficiency. However, the increase in fish weight gain can offset the cost of including the enzyme in the diet. However, there are still gaps regarding the effects of protease in fish feeding, for example, enzyme: specific substrate and enzyme: digestive system ratio; and, stabilization technologies (mainly extruded diets), so further studies are needed.","PeriodicalId":33658,"journal":{"name":"Pesquisa Agropecuaria Gaucha","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46118336","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 : 2022-05-02DOI: 10.36812/pag.202228158-69
W. Silvestre, Luanna Mazzotti, Gabriel Fernandes Pauletti
The strawberry guava (Psidium cattleianum Sabine) is a fruit species native from South-Southeast Brazil whose leaf essential oil has potential for commercial uses due to its bioactive properties. However, little is known about the influence of the geographical distribution in small scale on P. cattleianum essential oil chemical composition and yield. The present work aimed to evaluate the yield and chemical composition of the leaf essential oil of P. cattleianum populations in the region of Caxias do Sul, South Brazil. Samples of twelve populations were collected and the essential oil was extracted by hydrodistillation. The chemical composition of the essential oils was determined by GC/MS and GC-FID. The results showed a high variability of essential oil yield, which ranged between 0.08 and 0.75% v/w. Regarding the chemical profiles, nine populations presented the 1,8-cineole chemotype, the β-caryophyllene chemotype was observed in two of them, and in one population there were four major compounds. Both hierarchical cluster and principal component analyses showed differences in essential oil composition in populations geographically close, indicating the existence of an important genetic variability in populations of the same geographical area.
草莓番石榴(Psidium catleanum Sabine)是一种原产于巴西东南部东南部的水果，其叶子精油因其生物活性特性而具有潜在的商业用途。然而，小尺度地理分布对牛皮草挥发油化学成分和产量的影响尚不清楚。本研究旨在对巴西南部南卡西亚斯(Caxias do Sul)地区牛颡鱼(P. catleanum)种群叶精油的产量和化学成分进行评价。收集了12个种群的样品，采用水蒸气蒸馏法提取精油。采用GC/MS和GC- fid对精油的化学成分进行了测定。结果表明，精油得率在0.08 ~ 0.75% v/w之间变化很大。在化学图谱上，9个居群为1,8-桉树脑化学型，2个居群为β-石竹烯化学型，1个居群中有4个主要化合物。层次聚类分析和主成分分析均显示地理位置相近的人群中精油成分存在差异，表明同一地理区域的人群中存在重要的遗传变异。
{"title":"Bioprospecting of strawberry guava leaf essential oil in Caxias do Sul region, South Brazil","authors":"W. Silvestre, Luanna Mazzotti, Gabriel Fernandes Pauletti","doi":"10.36812/pag.202228158-69","DOIUrl":"https://doi.org/10.36812/pag.202228158-69","url":null,"abstract":"The strawberry guava (Psidium cattleianum Sabine) is a fruit species native from South-Southeast Brazil whose leaf essential oil has potential for commercial uses due to its bioactive properties. However, little is known about the influence of the geographical distribution in small scale on P. cattleianum essential oil chemical composition and yield. The present work aimed to evaluate the yield and chemical composition of the leaf essential oil of P. cattleianum populations in the region of Caxias do Sul, South Brazil. Samples of twelve populations were collected and the essential oil was extracted by hydrodistillation. The chemical composition of the essential oils was determined by GC/MS and GC-FID. The results showed a high variability of essential oil yield, which ranged between 0.08 and 0.75% v/w. Regarding the chemical profiles, nine populations presented the 1,8-cineole chemotype, the β-caryophyllene chemotype was observed in two of them, and in one population there were four major compounds. Both hierarchical cluster and principal component analyses showed differences in essential oil composition in populations geographically close, indicating the existence of an important genetic variability in populations of the same geographical area.","PeriodicalId":33658,"journal":{"name":"Pesquisa Agropecuaria Gaucha","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48603188","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 : 2022-04-20DOI: 10.36812/pag.202228148-57
R. Anzanello, Tainan Graeff Tasso, Cláudia Martellet Fogaça, A. Cargnin, Leo Duc Haa Carson Schwartzhaupt da Conceição, Gabriele Becker Delwing Sartori, A. Heemann Junges
This study aimed to evaluate clones of ‘Riesling Itálico’, ‘Chardonnay’, ‘Merlot’ and ‘Cabernet Franc’ grapevines that best adapt to the edaphoclimatic conditions in Veranópolis, RS. The experiment was carried out at the State Center for Diagnosis and Research in Fruticulture - DDPA/SEAPDR. Three 'Riesling Itálico' clones (ISV-1, RI12V23, VCR-365), four 'Chardonnay' clones (INRA-95, INRA-132, INRA-548, VCR-6), four 'Merlot' clones (INRA-181, INRA-347, VCR-13, VCR-494) and seven 'Cabernet Franc' clones (INRA-212, INRA-214, ISV-8, ISV-101, VCR-2, VCR- 4, VCR-10) were evaluated. The experimental design was randomized blocks, with 4 replications and 10 plants per plot. The clones were evaluated in the 2020/2021 cycle for phenology (budburst and maturation dates), production (kg/plant, ton/ha weight/bunch) and fruit quality (soluble solids-SS, titratable acidity-AT, pH). The results showed the potentiality of the clone RI12V23 for 'Riesling Itálico', INRA-132 for 'Chardonnay', VCR-13 for 'Merlot' and VCR-10 for 'Cabernet Franc'. The 'Riesling Itálico' and 'Chardonnay' clones showed greater production precocity than the 'Merlot' and 'Cabernet Franc' clones.
{"title":"Agronomic evaluation of ‘Riesling Itálico’, ‘Chardonnay’, ‘Merlot’ and ‘Cabernet Franc’ grapevine clones","authors":"R. Anzanello, Tainan Graeff Tasso, Cláudia Martellet Fogaça, A. Cargnin, Leo Duc Haa Carson Schwartzhaupt da Conceição, Gabriele Becker Delwing Sartori, A. Heemann Junges","doi":"10.36812/pag.202228148-57","DOIUrl":"https://doi.org/10.36812/pag.202228148-57","url":null,"abstract":"This study aimed to evaluate clones of ‘Riesling Itálico’, ‘Chardonnay’, ‘Merlot’ and ‘Cabernet Franc’ grapevines that best adapt to the edaphoclimatic conditions in Veranópolis, RS. The experiment was carried out at the State Center for Diagnosis and Research in Fruticulture - DDPA/SEAPDR. Three 'Riesling Itálico' clones (ISV-1, RI12V23, VCR-365), four 'Chardonnay' clones (INRA-95, INRA-132, INRA-548, VCR-6), four 'Merlot' clones (INRA-181, INRA-347, VCR-13, VCR-494) and seven 'Cabernet Franc' clones (INRA-212, INRA-214, ISV-8, ISV-101, VCR-2, VCR- 4, VCR-10) were evaluated. The experimental design was randomized blocks, with 4 replications and 10 plants per plot. The clones were evaluated in the 2020/2021 cycle for phenology (budburst and maturation dates), production (kg/plant, ton/ha weight/bunch) and fruit quality (soluble solids-SS, titratable acidity-AT, pH). The results showed the potentiality of the clone RI12V23 for 'Riesling Itálico', INRA-132 for 'Chardonnay', VCR-13 for 'Merlot' and VCR-10 for 'Cabernet Franc'. The 'Riesling Itálico' and 'Chardonnay' clones showed greater production precocity than the 'Merlot' and 'Cabernet Franc' clones.","PeriodicalId":33658,"journal":{"name":"Pesquisa Agropecuaria Gaucha","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46173593","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 : 2022-01-21DOI: 10.36812/pag.202228136-47
Andersson Daniel Steffler, Eduardo Canepelle, Rodrigo Rotili Junior, Marciel Redin
Sweet potato (Ipomoea batatas) has cultural, social and economic importance due to its rusticity and wide climate adaptation, being cultivated in Brazil for human and animal food. However, cultivation is carried out mainly without fertilization and with Creole cultivars. The objective was to evaluate the yield and quality of roots of sweet potato cultivars with and without fertilization of chicken manure in an Oxisol. The experiment was carried out under field conditions in the 2015/16 and 2016/17 seasons in a randomized block design with three replications in 6 m2 plots. Four sweet potato cultivars, BRS Rubissol, BRS Amélia, BRS Cuia and Crioula, were used. Root productivity, number, length and diameter of roots, and cracked roots were evaluated. In both cultivation conditions, the virus-free cultivars Rubissol, Amélia and Cuia showed higher average root yields, 43,941, 45,498 and 52,095 kg ha-1, respectively, compared to the Crioula cultivar with 3,389 kg ha-1. Fertilization with chicken manure does not increase the productivity, number, length and diameter of roots, but it does increase the number of cracked roots. The cultivation of virus-free sweet potato without fertilizer reduces cracked roots by an average of 51.4%.
甘薯(Ipomoea batatas)因其质朴性和广泛的气候适应性而具有文化、社会和经济重要性，在巴西被种植为人类和动物食品。然而，种植主要是在不施肥的情况下进行的，并使用克里奥尔品种。目的是评价在施鸡粪和不施鸡粪的情况下甘薯品种根系的产量和品质。试验于2015/16和2016/17两季在田间条件下进行，采用随机区组设计，3个重复，地块面积6 m2。选用BRS Rubissol、BRS amsamulia、BRS Cuia和Crioula 4个甘薯品种。对根系生产力、根系数量、根系长度、根系直径、断裂根系进行了评价。在两种栽培条件下，脱毒品种Rubissol、amsamulia和Cuia的平均根产量分别为43,941、45,498和52,095 kg ha-1，高于Crioula品种的3,389 kg ha-1。鸡粪施肥不会增加产量、根的数量、长度和直径，但会增加断裂根的数量。无肥脱毒甘薯栽培可使根裂率平均降低51.4%。
{"title":"Productivity and quality of sweet potato roots cultivation with and without chicken manure","authors":"Andersson Daniel Steffler, Eduardo Canepelle, Rodrigo Rotili Junior, Marciel Redin","doi":"10.36812/pag.202228136-47","DOIUrl":"https://doi.org/10.36812/pag.202228136-47","url":null,"abstract":"Sweet potato (Ipomoea batatas) has cultural, social and economic importance due to its rusticity and wide climate adaptation, being cultivated in Brazil for human and animal food. However, cultivation is carried out mainly without fertilization and with Creole cultivars. The objective was to evaluate the yield and quality of roots of sweet potato cultivars with and without fertilization of chicken manure in an Oxisol. The experiment was carried out under field conditions in the 2015/16 and 2016/17 seasons in a randomized block design with three replications in 6 m2 plots. Four sweet potato cultivars, BRS Rubissol, BRS Amélia, BRS Cuia and Crioula, were used. Root productivity, number, length and diameter of roots, and cracked roots were evaluated. In both cultivation conditions, the virus-free cultivars Rubissol, Amélia and Cuia showed higher average root yields, 43,941, 45,498 and 52,095 kg ha-1, respectively, compared to the Crioula cultivar with 3,389 kg ha-1. Fertilization with chicken manure does not increase the productivity, number, length and diameter of roots, but it does increase the number of cracked roots. The cultivation of virus-free sweet potato without fertilizer reduces cracked roots by an average of 51.4%.","PeriodicalId":33658,"journal":{"name":"Pesquisa Agropecuaria Gaucha","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45779725","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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