Pub Date : 2022-05-01DOI: 10.32406/v5n1/2022/163-177/agrariacad
Marco Túlio Santos Siqueira, Karla Alves Oliveira, Érica Beatriz Schultz, L. Sousa, Vitória E. S. Silva, G. L. M. Macedo Júnior
The objective was to evaluate food digestibility, dry matter intake, ingestive behavior and metabolic profile of ewes fed with extruded roughage instead silage. Twenty animals were used, with an average 54.5kg. The treatments consisted: 80%F:20%S; 60%F:40%S; 40%F:60%S; 20%F:80%S; and 100%S. Food, leavings, feces, urine, ingestive behavior and blood metabolites were evaluated. The variables DMI%BW and DMI(BW0.75) showed a negative linear response. There was positive linear response for RUM and CHEWING, negative linear response for IDLENESS, ERUM, EING and ECHEW and quadratic response for ING. Uric acid showed a statistical difference between treatments. It is concluded that the replacement corn silage by Foragge® extruded roughage can be done in up to 80%.
{"title":"Avaliação do efeito da substituição de silagem de milho por ração extrusada de fibra de cana em ovinos","authors":"Marco Túlio Santos Siqueira, Karla Alves Oliveira, Érica Beatriz Schultz, L. Sousa, Vitória E. S. Silva, G. L. M. Macedo Júnior","doi":"10.32406/v5n1/2022/163-177/agrariacad","DOIUrl":"https://doi.org/10.32406/v5n1/2022/163-177/agrariacad","url":null,"abstract":"The objective was to evaluate food digestibility, dry matter intake, ingestive behavior and metabolic profile of ewes fed with extruded roughage instead silage. Twenty animals were used, with an average 54.5kg. The treatments consisted: 80%F:20%S; 60%F:40%S; 40%F:60%S; 20%F:80%S; and 100%S. Food, leavings, feces, urine, ingestive behavior and blood metabolites were evaluated. The variables DMI%BW and DMI(BW0.75) showed a negative linear response. There was positive linear response for RUM and CHEWING, negative linear response for IDLENESS, ERUM, EING and ECHEW and quadratic response for ING. Uric acid showed a statistical difference between treatments. It is concluded that the replacement corn silage by Foragge® extruded roughage can be done in up to 80%.","PeriodicalId":114917,"journal":{"name":"Revista Agraria Academica","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121365583","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 : 2022-05-01DOI: 10.32406/v5n3/2022/49-58/agrariacad
Eduarda Letícia da Silva Barrozo, V. Nascimento, Marcia Dias
The objective was to analyze the effect of the type of semen, conventional and sexed, on the in vitro production of embryos. A total of 1,285 oocytes and 1,155 oocytes with sexed semen were matured and fertilized with conventional semen, obtaining 1,167 (90.55%) and 1,051 (90.68%) zygotes in fertilization with conventional and sexed semen, respectively (P=0.8411). In in vitro culture, embryo cleavage was evaluated in 769 (67.42%) of zygotes from conventional semen and 540 (55.12%) from zygotes from sexed semen (P=0.8411). There was no statistical difference in both analyzed variables. On day 7, the number of viable embryos produced was evaluated, being 428 (53.55%) conventional embryos and 138 (30.64%) viable embryos from sexed semen (P=0.0001). There was a significant difference, therefore, it obtained better embryonic conversion with conventional semen in relation to sexed semen of Nelore bulls.
{"title":"Produção de embriões in vitro com sêmen sexado de touros nelore","authors":"Eduarda Letícia da Silva Barrozo, V. Nascimento, Marcia Dias","doi":"10.32406/v5n3/2022/49-58/agrariacad","DOIUrl":"https://doi.org/10.32406/v5n3/2022/49-58/agrariacad","url":null,"abstract":"The objective was to analyze the effect of the type of semen, conventional and sexed, on the in vitro production of embryos. A total of 1,285 oocytes and 1,155 oocytes with sexed semen were matured and fertilized with conventional semen, obtaining 1,167 (90.55%) and 1,051 (90.68%) zygotes in fertilization with conventional and sexed semen, respectively (P=0.8411). In in vitro culture, embryo cleavage was evaluated in 769 (67.42%) of zygotes from conventional semen and 540 (55.12%) from zygotes from sexed semen (P=0.8411). There was no statistical difference in both analyzed variables. On day 7, the number of viable embryos produced was evaluated, being 428 (53.55%) conventional embryos and 138 (30.64%) viable embryos from sexed semen (P=0.0001). There was a significant difference, therefore, it obtained better embryonic conversion with conventional semen in relation to sexed semen of Nelore bulls.","PeriodicalId":114917,"journal":{"name":"Revista Agraria Academica","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126886029","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 : 2022-05-01DOI: 10.32406/v5n3/2022/82-93/agrariacad
M. Faci
The monitoring of phenological stages of date palm and air temperature in Biskra, which is a potential date palm cultivation region in Algeria, during the years 2018 and 2019, has recorded a temporal advancement of the phenological cycle of this plant. This advancement has influenced the dates of harvest, which have become earlier. For their part, the thermal accumulations recorded during the fruiting of the date palm, have experienced an upward trend; they are 3689 to 5141°C, for a base temperature of 10°C. These accumulations are higher, if 7°C is considered as vegetation zero (5170-6835°C). In contrast, the flowering zero recorded in the study area is around 13°C.
{"title":"Thermal requirements for the ripening of date palms in Biskra (South-East Algeria)","authors":"M. Faci","doi":"10.32406/v5n3/2022/82-93/agrariacad","DOIUrl":"https://doi.org/10.32406/v5n3/2022/82-93/agrariacad","url":null,"abstract":"The monitoring of phenological stages of date palm and air temperature in Biskra, which is a potential date palm cultivation region in Algeria, during the years 2018 and 2019, has recorded a temporal advancement of the phenological cycle of this plant. This advancement has influenced the dates of harvest, which have become earlier. For their part, the thermal accumulations recorded during the fruiting of the date palm, have experienced an upward trend; they are 3689 to 5141°C, for a base temperature of 10°C. These accumulations are higher, if 7°C is considered as vegetation zero (5170-6835°C). In contrast, the flowering zero recorded in the study area is around 13°C.","PeriodicalId":114917,"journal":{"name":"Revista Agraria Academica","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128686125","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 : 2022-05-01DOI: 10.32406/v5n3/2022/16-24/agrariacad
Ana Luiza Menegatti Pavan, Vitor Foroni Casas, Gabriela Lucia de Oliveira e Silva, Mariana Melo Ferreira Arantes, Mazurquiedisk Nunes Rosa Júnior
Free-ranging equines have a species-specific behavioral pattern, however with urbanization and rural exodus, the need to keep these animals confined close to humans arose. The habit of keeping them imprisoned is harmful to their well-being, generating the possibility of developing behavioral changes called stereotypies. In addition to devaluing the animal, these behaviors bring harm to health. It is known that environmental enrichment and changes in the management of stabled horses, in some cases, are not enough to provide the interruption of stereotypies when already established by the animals. In this way, the use of homeopathy can be an alternative as a form of treatment for animals with obsessive compulsive behavioral disorders. For the treatment, it is necessary to assess the individuality of each animal, in this way the exact medication that is compatible with the specific signs is prescribed, so that the results are satisfactory.
{"title":"Uso de homeopatias para tratamento de estereotipias em equinos – revisão de literatura","authors":"Ana Luiza Menegatti Pavan, Vitor Foroni Casas, Gabriela Lucia de Oliveira e Silva, Mariana Melo Ferreira Arantes, Mazurquiedisk Nunes Rosa Júnior","doi":"10.32406/v5n3/2022/16-24/agrariacad","DOIUrl":"https://doi.org/10.32406/v5n3/2022/16-24/agrariacad","url":null,"abstract":"Free-ranging equines have a species-specific behavioral pattern, however with urbanization and rural exodus, the need to keep these animals confined close to humans arose. The habit of keeping them imprisoned is harmful to their well-being, generating the possibility of developing behavioral changes called stereotypies. In addition to devaluing the animal, these behaviors bring harm to health. It is known that environmental enrichment and changes in the management of stabled horses, in some cases, are not enough to provide the interruption of stereotypies when already established by the animals. In this way, the use of homeopathy can be an alternative as a form of treatment for animals with obsessive compulsive behavioral disorders. For the treatment, it is necessary to assess the individuality of each animal, in this way the exact medication that is compatible with the specific signs is prescribed, so that the results are satisfactory.","PeriodicalId":114917,"journal":{"name":"Revista Agraria Academica","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130063122","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 : 2022-05-01DOI: 10.32406/v5n3/2022/115-128/agrariacad
Fabiana Schmidt
The objective of the study was to evaluate the productive, nutritional and bromatological responses throughout the year of the main pastures established in dairy farms in SC. Sample collections took place in 25 properties located in 8 physiographic regions in the years 2018 and 2019. The giant missionary had the highest average productions occurred in the summer and of tifton 85 pastures occurred in the autumn, winter and spring due to the effect of overseeding with oats and ryegrass. The bromatological composition and nutrient composition differed between the pastures in winter, with tifton being oversown with oats and ryegrass with better nutritional value.
{"title":"Estacionalidade da produção e qualidade das pastagens utilizadas na pecuária leiteira em Santa Catarina","authors":"Fabiana Schmidt","doi":"10.32406/v5n3/2022/115-128/agrariacad","DOIUrl":"https://doi.org/10.32406/v5n3/2022/115-128/agrariacad","url":null,"abstract":"The objective of the study was to evaluate the productive, nutritional and bromatological responses throughout the year of the main pastures established in dairy farms in SC. Sample collections took place in 25 properties located in 8 physiographic regions in the years 2018 and 2019. The giant missionary had the highest average productions occurred in the summer and of tifton 85 pastures occurred in the autumn, winter and spring due to the effect of overseeding with oats and ryegrass. The bromatological composition and nutrient composition differed between the pastures in winter, with tifton being oversown with oats and ryegrass with better nutritional value.","PeriodicalId":114917,"journal":{"name":"Revista Agraria Academica","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128330803","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 : 2022-05-01DOI: 10.32406/v5n3/2022/59-72/agrariacad
Gustavo Roberto Dias Rodrigues, M. Siqueira, Thamiris Oliveira Dutra, Érica Beatriz Schultz, Luciano Fernandes Sousa, G. L. M. Macedo Júnior
The objective was to evaluate the effect of enzymes on consumption, digestion of dry matter and blood nutrients and metabolites. Sixteen lambs with an average age and weight of 3 months and 19.00 kg, respectively, were used. Treatments consist of the use of amylolytic, proteolytic and fibrolytic enzymes. A completely randomized design was used. No differences (P>0.05) were found for intake and digestion of dry matter and nutrients. There was a statistical difference (P<0.05) for the urea variable, where treatment Amaize® and Amaize® + Fibrozyme® were thought to be superior to the others. It can be concluded that the inclusion of amylolytic enzymes associated with proteolytic enzymes does not cause any effects to the animals, and deleterious effects can be added to the feed of lambs.
{"title":"Uso de enzima amilolítica associada a enzimas proteolíticas e fibrolíticas na dieta para ovinos","authors":"Gustavo Roberto Dias Rodrigues, M. Siqueira, Thamiris Oliveira Dutra, Érica Beatriz Schultz, Luciano Fernandes Sousa, G. L. M. Macedo Júnior","doi":"10.32406/v5n3/2022/59-72/agrariacad","DOIUrl":"https://doi.org/10.32406/v5n3/2022/59-72/agrariacad","url":null,"abstract":"The objective was to evaluate the effect of enzymes on consumption, digestion of dry matter and blood nutrients and metabolites. Sixteen lambs with an average age and weight of 3 months and 19.00 kg, respectively, were used. Treatments consist of the use of amylolytic, proteolytic and fibrolytic enzymes. A completely randomized design was used. No differences (P>0.05) were found for intake and digestion of dry matter and nutrients. There was a statistical difference (P<0.05) for the urea variable, where treatment Amaize® and Amaize® + Fibrozyme® were thought to be superior to the others. It can be concluded that the inclusion of amylolytic enzymes associated with proteolytic enzymes does not cause any effects to the animals, and deleterious effects can be added to the feed of lambs.","PeriodicalId":114917,"journal":{"name":"Revista Agraria Academica","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117242755","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 : 2022-03-01DOI: 10.32406/v5n2/2022/50-65/agrariacad
Fabiana Schmidt
The objective of the study was to evaluate the productivity, botanical composition and nutritional value of tifton 85 subjected to different overseeds and fertilization. The experimental design was the RBD in a 3x3 factorial scheme, with 4 replications. The factors evaluated were overseeded forage species (exclusive tifton and overseeded with single black oat and intercropped with ryegrass) and fertilization (absence and presence of chemical fertilization or poultry litter). The establishment of black oat and ryegrass by overseeding with the use of chemical fertilization in tifton 85 promoted an increase in the production of forage DM to animals in grazing, with higher content of CP and IVDM and lower NDF.
{"title":"Produção de massa seca, composição botânica e valor nutritivo de forrageiras de inverno sobressemeadas em pasto de tifton 85 adubado com fertilizantes químicos e cama de aves","authors":"Fabiana Schmidt","doi":"10.32406/v5n2/2022/50-65/agrariacad","DOIUrl":"https://doi.org/10.32406/v5n2/2022/50-65/agrariacad","url":null,"abstract":"The objective of the study was to evaluate the productivity, botanical composition and nutritional value of tifton 85 subjected to different overseeds and fertilization. The experimental design was the RBD in a 3x3 factorial scheme, with 4 replications. The factors evaluated were overseeded forage species (exclusive tifton and overseeded with single black oat and intercropped with ryegrass) and fertilization (absence and presence of chemical fertilization or poultry litter). The establishment of black oat and ryegrass by overseeding with the use of chemical fertilization in tifton 85 promoted an increase in the production of forage DM to animals in grazing, with higher content of CP and IVDM and lower NDF.","PeriodicalId":114917,"journal":{"name":"Revista Agraria Academica","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121696722","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 : 2022-03-01DOI: 10.32406/v5n2/2022/111-126/agrariacad
Ádila Pereira de Sousa, Ildon Rodrigues do Nascimento, João Victor Gonçalves Carline, Liomar Borges de Oliveira, Simone Pereira Teles, Fernanda Fonseca Pereira Pereira, João Francisco de Matos Neto, Danielly Barbosa Kaonrdörfer
The objective was to evaluate the response of lettuce seedlings to foliar application of different sources and doses of zinc. The experiment was carried out in a greenhouse, and the design was completely randomized in a factorial scheme (3 x 5), consisting of 3 sources with 5 doses each: Zn sulfate (0, 50, 100, 150 and 200 g Zn ha-1), Zn oxide (0, 187, 375, 562 and 750 g Zn ha-1) and Zn chelate (0; 36.25; 72,50; 108,40; and 145 g Zn ha-1), with 4 repetitions. The highest levels of foliar Zn were obtained at doses of 200, 562 and 72,50 g Zn ha-1, from sulfate, oxide and chelate sources, respectively.
目的是评价生菜幼苗对叶片施用不同来源和剂量锌的反应。试验在温室中进行，设计为完全随机因子(3 × 5)，由3个源组成，每个源5个剂量:硫酸锌(0、50、100、150和200 g Zn ha-1)，氧化锌(0、187、375、562和750 g Zn ha-1)和螯合锌(0;36.25;72年,50;108年,40;145 g Zn ha-1)，重复4次。硫酸盐源、氧化物源和螯合剂源分别在200,562和72,50 g Zn ha-1剂量下叶片锌含量最高。
{"title":"Doses e fontes de zinco aplicado via foliar na qualidade de mudas de alface","authors":"Ádila Pereira de Sousa, Ildon Rodrigues do Nascimento, João Victor Gonçalves Carline, Liomar Borges de Oliveira, Simone Pereira Teles, Fernanda Fonseca Pereira Pereira, João Francisco de Matos Neto, Danielly Barbosa Kaonrdörfer","doi":"10.32406/v5n2/2022/111-126/agrariacad","DOIUrl":"https://doi.org/10.32406/v5n2/2022/111-126/agrariacad","url":null,"abstract":"The objective was to evaluate the response of lettuce seedlings to foliar application of different sources and doses of zinc. The experiment was carried out in a greenhouse, and the design was completely randomized in a factorial scheme (3 x 5), consisting of 3 sources with 5 doses each: Zn sulfate (0, 50, 100, 150 and 200 g Zn ha-1), Zn oxide (0, 187, 375, 562 and 750 g Zn ha-1) and Zn chelate (0; 36.25; 72,50; 108,40; and 145 g Zn ha-1), with 4 repetitions. The highest levels of foliar Zn were obtained at doses of 200, 562 and 72,50 g Zn ha-1, from sulfate, oxide and chelate sources, respectively.","PeriodicalId":114917,"journal":{"name":"Revista Agraria Academica","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130038815","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 : 2022-03-01DOI: 10.32406/v5n2/2022/1-10/agrariacad
Denise Costa dos Santos, Adyel Kenned Souza Freitas, Antônio Hosmylton Carvalho Ferreira, Jonathas Araújo Lopes, João Victor da Silva, A. Cunha
The objective was to evaluate levels of inclusion not yet tested of moringa leaf flour in the diet of Nile tilapia juveniles, under economic analysis. The experimental design was completely randomized, with four levels of inclusion of moringa leaf meal (0%, 5%, 10% and 15%) and five repetitions, with 15 fish with an initial weight of 13.31 ± 0.74 in a 100-liter aquarium as an experimental unit, lasting 30 days. It was observed that the inclusion of this bran in the diet is not feasible, because as this ingredient was included, the feed increased and the profit decreased through the activity.
{"title":"Juvenis de Tilápias-do-Nilo alimentados com diferentes níveis de inclusão da moringa (Moringa oleifera) na dieta sob avaliação econômica","authors":"Denise Costa dos Santos, Adyel Kenned Souza Freitas, Antônio Hosmylton Carvalho Ferreira, Jonathas Araújo Lopes, João Victor da Silva, A. Cunha","doi":"10.32406/v5n2/2022/1-10/agrariacad","DOIUrl":"https://doi.org/10.32406/v5n2/2022/1-10/agrariacad","url":null,"abstract":"The objective was to evaluate levels of inclusion not yet tested of moringa leaf flour in the diet of Nile tilapia juveniles, under economic analysis. The experimental design was completely randomized, with four levels of inclusion of moringa leaf meal (0%, 5%, 10% and 15%) and five repetitions, with 15 fish with an initial weight of 13.31 ± 0.74 in a 100-liter aquarium as an experimental unit, lasting 30 days. It was observed that the inclusion of this bran in the diet is not feasible, because as this ingredient was included, the feed increased and the profit decreased through the activity.","PeriodicalId":114917,"journal":{"name":"Revista Agraria Academica","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121918803","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}
Sugarcane (Saccharum officinarum L.) comes from the Asian continent. Culture is of enormous importance to the Brazilian economy, being explored throughout the country, with the Southeast, Northeast and South as the largest production centers today. With the growing population, it has been increasingly sought to increase productivity and profitability with the cultivation of sugarcane with the help of agricultural and managerial techniques. Plant productivity is related to photosynthetic efficiency. One of the factors linked to this efficiency is the chlorophyll content, due to its direct connection with the absorption and transfer of light energy. However, the concentration of chlorophylls can be influenced by fertility and fertilization. The objective of this work was to compare the use of chlorophyll meter (Minolta SPAD® 502 and Falker ClorofiLOG® 17 1030) and spectrophotometer for chlorophyll determination in sugarcane fertilized with organominerals and industrial sewage sludge. The experiment was conducted in randomized blocks, with five replications per treatment. The characteristics evaluated were: Cla (chlorophyll a), Clb (chlorophyll b), Car (carotenoids), Clt (total chlorophylls), Cla/Clb (ratio between chlorophyll a and chlorophyll b). All equipment used showed similar responses in terms of chlorophyll concentration in response to fertilization. It was found that, regardless of the treatments, the concentrations of photosynthetic pigments did not vary.
{"title":"Pigmentos fotossintéticos como descritores de resposta a adubação organomineral em cana-de-açúcar (Saccharum Officinarum L.)","authors":"Flávia Santana Ribeiro, Lorena Gabrielle Fernandes Alves, Marcio Rosa, Narcisa Silva Soares, C. Gonçalves","doi":"10.32406/v5n2/2022/103-110/agrariacad","DOIUrl":"https://doi.org/10.32406/v5n2/2022/103-110/agrariacad","url":null,"abstract":"Sugarcane (Saccharum officinarum L.) comes from the Asian continent. Culture is of enormous importance to the Brazilian economy, being explored throughout the country, with the Southeast, Northeast and South as the largest production centers today. With the growing population, it has been increasingly sought to increase productivity and profitability with the cultivation of sugarcane with the help of agricultural and managerial techniques. Plant productivity is related to photosynthetic efficiency. One of the factors linked to this efficiency is the chlorophyll content, due to its direct connection with the absorption and transfer of light energy. However, the concentration of chlorophylls can be influenced by fertility and fertilization. The objective of this work was to compare the use of chlorophyll meter (Minolta SPAD® 502 and Falker ClorofiLOG® 17 1030) and spectrophotometer for chlorophyll determination in sugarcane fertilized with organominerals and industrial sewage sludge. The experiment was conducted in randomized blocks, with five replications per treatment. The characteristics evaluated were: Cla (chlorophyll a), Clb (chlorophyll b), Car (carotenoids), Clt (total chlorophylls), Cla/Clb (ratio between chlorophyll a and chlorophyll b). All equipment used showed similar responses in terms of chlorophyll concentration in response to fertilization. It was found that, regardless of the treatments, the concentrations of photosynthetic pigments did not vary.","PeriodicalId":114917,"journal":{"name":"Revista Agraria Academica","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134477734","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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