Pub Date : 2023-11-22DOI: 10.33158/asb.r196.v10.2024
Graziely Amorim Weiand Stadtlober, Â. M. Fiorentini, Joseana Severo, Karin Buss Dias Bernardo, I. Carvalho, Murilo Vieira Loro
The study aimed to evaluate the knives, contact surfaces and carcasses for contamination by mesophilic aerobic bacteria and Enterobacteriaceae, in a pig slaughterhouse in the state of Rio Grande do Sul. The present study took place in a pig slaughterhouse, located in the Northwest Region of the State of Rio Grande do Sul, under the Federal Inspection Service (SIF). The experimental design used was randomized blocks organized in a bifactorial scheme, being for the knives: 3 (days of collection) x 3 x 15 (time of collection and knives from the slaughter and deboning process), totaling 135 experimental units for the knives. For water, main contact surfaces and pig carcasses, a unifactorial scheme was used: 3 (days of collection) x 12 surfaces (5 contact surfaces and 7 carcasses), totaling 36 experimental units. Knives used during slaughter operations are a form of contamination. There is deficiency in the pre-operational hygiene procedure of the utensils.
{"title":"Contamination by aerobic mesophilal and enterobacteriaceae bacteria in a pig refrigerator","authors":"Graziely Amorim Weiand Stadtlober, Â. M. Fiorentini, Joseana Severo, Karin Buss Dias Bernardo, I. Carvalho, Murilo Vieira Loro","doi":"10.33158/asb.r196.v10.2024","DOIUrl":"https://doi.org/10.33158/asb.r196.v10.2024","url":null,"abstract":"The study aimed to evaluate the knives, contact surfaces and carcasses for contamination by mesophilic aerobic bacteria and Enterobacteriaceae, in a pig slaughterhouse in the state of Rio Grande do Sul. The present study took place in a pig slaughterhouse, located in the Northwest Region of the State of Rio Grande do Sul, under the Federal Inspection Service (SIF). The experimental design used was randomized blocks organized in a bifactorial scheme, being for the knives: 3 (days of collection) x 3 x 15 (time of collection and knives from the slaughter and deboning process), totaling 135 experimental units for the knives. For water, main contact surfaces and pig carcasses, a unifactorial scheme was used: 3 (days of collection) x 12 surfaces (5 contact surfaces and 7 carcasses), totaling 36 experimental units. Knives used during slaughter operations are a form of contamination. There is deficiency in the pre-operational hygiene procedure of the utensils.","PeriodicalId":297313,"journal":{"name":"Agronomy Science and Biotechnology","volume":"5 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139247363","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 : 2023-11-19DOI: 10.33158/asb.r199.v10.2024
Murilo Vieira Loro, I. Carvalho, Leonardo Cesar Pradebon, J. Sangiovo, João Pedro Dalla Roza, Guilherme Hickembick Zuse, Eduardo Ely Foleto
This bibliographic review explored maize genetic breeding to increase tolerance to abiotic stress. The main stresses faced by the crop, such as water stress and nitrogen deficiency, and their negative impacts on grain yield were discussed. Strategies to minimize these effects were examined, focusing on the selection of tolerant genotypes and the strategic positioning of these genotypes in different growing environments. The germplasm bank and genetic diversity were highlighted as crucial resources to identify desirable traits and genes associated with resistance to abiotic stress. The selection of secondary characters, considering their heritability and correlation with characters of interest, allows maximizing the efficiency in the selection of promising genotypes in genetic breeding programs. Test environments simulating stresses, such as water stress and low nitrogen, are essential to evaluate the performance of genotypes and identify the most tolerant ones. The genetic breeding of maize for tolerance to abiotic stress promotes promising solutions to face environmental challenges and ensure the sustainability of agricultural production.
{"title":"Maize genetic breeding for tolerance to abiotic stress with focus on sustainable use of environmental resources","authors":"Murilo Vieira Loro, I. Carvalho, Leonardo Cesar Pradebon, J. Sangiovo, João Pedro Dalla Roza, Guilherme Hickembick Zuse, Eduardo Ely Foleto","doi":"10.33158/asb.r199.v10.2024","DOIUrl":"https://doi.org/10.33158/asb.r199.v10.2024","url":null,"abstract":"This bibliographic review explored maize genetic breeding to increase tolerance to abiotic stress. The main stresses faced by the crop, such as water stress and nitrogen deficiency, and their negative impacts on grain yield were discussed. Strategies to minimize these effects were examined, focusing on the selection of tolerant genotypes and the strategic positioning of these genotypes in different growing environments. The germplasm bank and genetic diversity were highlighted as crucial resources to identify desirable traits and genes associated with resistance to abiotic stress. The selection of secondary characters, considering their heritability and correlation with characters of interest, allows maximizing the efficiency in the selection of promising genotypes in genetic breeding programs. Test environments simulating stresses, such as water stress and low nitrogen, are essential to evaluate the performance of genotypes and identify the most tolerant ones. The genetic breeding of maize for tolerance to abiotic stress promotes promising solutions to face environmental challenges and ensure the sustainability of agricultural production.","PeriodicalId":297313,"journal":{"name":"Agronomy Science and Biotechnology","volume":"46 05","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139260502","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 : 2023-11-18DOI: 10.33158/asb.r198.v10.2024
Matheus Guilherme Libardoni Meotti, I. Carvalho, Murilo Vieira Loro, José Antonio Gonzalez Silva, F. Lautenchleger
The objective of this work was to evaluate the partitioning of photoassimilates in sunflower plants sown in a non-preferential season coincident with the occurrence of fallow areas in the region, submitted to artificial defoliation with 100% intensity, in different phenological stages of the reproductive period. The experimental design used was randomized blocks with six treatments and three replications, consisting of 18 experimental units and all plants were defoliated. The treatments performed were artificial defoliation, I: No defoliation (control); II: Defoliation at the R1 phenological stage; III: Defoliation at the R3 phenological stage; IV: Defoliation at the R5 phenological stage; V: Defoliation at the R7 phenological stage and VI: Defoliation at the R8 phenological stage. Artificial defoliation performed at 100% intensity at different phenological stages influences the morphological attributes and yield components of sunflower in a distinct way. Defoliations performed at R1 phenological stage have a negative effect on most of the variables analyzed, which provided lower plant height, stem diameter, capitulum diameter, number of rows of achenes, number of achenes per row, achene length, achene width, thousand achene mass and, consequently, in grain yield. This phenological stage was marked by the beginning of the reproductive period, which has a high demand for photoassimilates to maintain plant metabolism and yield. Defoliation performed at R8 phenological stage had better performance for plant height, capitulum diameter, capitulum mass, number of rows of achenes, number of achenes per row, number of plants per hectare and grain yield (>1000 kg ha-1). The plants of experimental units without defoliation had results similar to those defoliated in the R8 phenological stage, however, they still had better performance for thousand achene mass, achene length, achene width, volume index and even a smaller diameter of missing seeds.
{"title":"Artificial defoliation and its impact on the agronomic performance of sunflower in a non-preferential season","authors":"Matheus Guilherme Libardoni Meotti, I. Carvalho, Murilo Vieira Loro, José Antonio Gonzalez Silva, F. Lautenchleger","doi":"10.33158/asb.r198.v10.2024","DOIUrl":"https://doi.org/10.33158/asb.r198.v10.2024","url":null,"abstract":"The objective of this work was to evaluate the partitioning of photoassimilates in sunflower plants sown in a non-preferential season coincident with the occurrence of fallow areas in the region, submitted to artificial defoliation with 100% intensity, in different phenological stages of the reproductive period. The experimental design used was randomized blocks with six treatments and three replications, consisting of 18 experimental units and all plants were defoliated. The treatments performed were artificial defoliation, I: No defoliation (control); II: Defoliation at the R1 phenological stage; III: Defoliation at the R3 phenological stage; IV: Defoliation at the R5 phenological stage; V: Defoliation at the R7 phenological stage and VI: Defoliation at the R8 phenological stage. Artificial defoliation performed at 100% intensity at different phenological stages influences the morphological attributes and yield components of sunflower in a distinct way. Defoliations performed at R1 phenological stage have a negative effect on most of the variables analyzed, which provided lower plant height, stem diameter, capitulum diameter, number of rows of achenes, number of achenes per row, achene length, achene width, thousand achene mass and, consequently, in grain yield. This phenological stage was marked by the beginning of the reproductive period, which has a high demand for photoassimilates to maintain plant metabolism and yield. Defoliation performed at R8 phenological stage had better performance for plant height, capitulum diameter, capitulum mass, number of rows of achenes, number of achenes per row, number of plants per hectare and grain yield (>1000 kg ha-1). The plants of experimental units without defoliation had results similar to those defoliated in the R8 phenological stage, however, they still had better performance for thousand achene mass, achene length, achene width, volume index and even a smaller diameter of missing seeds.","PeriodicalId":297313,"journal":{"name":"Agronomy Science and Biotechnology","volume":"13 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139262335","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 : 2023-09-09DOI: 10.33158/asb.r194.v10.2024
Lucian Alex Santos, Benhur Schwartz Barbosa, Carolina Cipriano Pinto, Vinícius Jardel Szareski, Ivan Ricardo Carvalho, João Roberto Pimentel, Cristian Troyjack, Tiago Corazza Rosa, Felipe Koch, Ítala Thaísa Padilha Dubal, Ana Karina Carmo Ferreira Santos, Luis Osmar Braga Schuch, Emanuela Garbin Martinazzo, Tiago Pedó, Tiago Zanatta Aumonde
The objective of this work was to evaluate the initial growth and chlorophyll content of maize plants originated from seeds with different sizes and shapes, as well as to establish the relationship between growth traits, chlorophyll index and seed formats. The experimental design was a randomized complete blocks, and the treatments were composed by seeds of four sizes and shapes for each of the two genotype used, and four collection periods (21, 24, 27 and 30 DAE) and four replications. The root and shoot length, stem diameter, leaf area, dry mass of leaf, stem, roots and total, leaf mass ratio, leaf area ratio, specific leaf area and chlorophyll a, b and total chlorophyll were determined. It was verified that seedlings of genotype "A" originated from large round seeds, presented the highest stem diameter, leaf dry mass, stem dry mass, root dry mass and total dry mass. There is a distinct response in the growth of maize plants as a function of the genotype. Regardless of the genotype, the size and shape of seeds do not influence the indexes of chlorophyll a, b and total. There is a positive and strong correlation between seeds of different sizes and shapes with leaf area, leaf dry mass and specific leaf area.
{"title":"Initial growth and chlorophyll indices of maize plants originating from seeds of different shapes and sizes","authors":"Lucian Alex Santos, Benhur Schwartz Barbosa, Carolina Cipriano Pinto, Vinícius Jardel Szareski, Ivan Ricardo Carvalho, João Roberto Pimentel, Cristian Troyjack, Tiago Corazza Rosa, Felipe Koch, Ítala Thaísa Padilha Dubal, Ana Karina Carmo Ferreira Santos, Luis Osmar Braga Schuch, Emanuela Garbin Martinazzo, Tiago Pedó, Tiago Zanatta Aumonde","doi":"10.33158/asb.r194.v10.2024","DOIUrl":"https://doi.org/10.33158/asb.r194.v10.2024","url":null,"abstract":"The objective of this work was to evaluate the initial growth and chlorophyll content of maize plants originated from seeds with different sizes and shapes, as well as to establish the relationship between growth traits, chlorophyll index and seed formats. The experimental design was a randomized complete blocks, and the treatments were composed by seeds of four sizes and shapes for each of the two genotype used, and four collection periods (21, 24, 27 and 30 DAE) and four replications. The root and shoot length, stem diameter, leaf area, dry mass of leaf, stem, roots and total, leaf mass ratio, leaf area ratio, specific leaf area and chlorophyll a, b and total chlorophyll were determined. It was verified that seedlings of genotype \"A\" originated from large round seeds, presented the highest stem diameter, leaf dry mass, stem dry mass, root dry mass and total dry mass. There is a distinct response in the growth of maize plants as a function of the genotype. Regardless of the genotype, the size and shape of seeds do not influence the indexes of chlorophyll a, b and total. There is a positive and strong correlation between seeds of different sizes and shapes with leaf area, leaf dry mass and specific leaf area.","PeriodicalId":297313,"journal":{"name":"Agronomy Science and Biotechnology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136108451","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 : 2023-07-28DOI: 10.33158/asb.r192.v9.2023
P. H. Facchinello, I. Carvalho, E. A. Streck, G. A. Aguiar, Janaína Goveia, Michele Feijó, Roberto Ramos Pereira, P. R. R. Fagundes, Murilo Vieira Loro, L. C. Maia, A. M. Júnior
For genetic improvement programs, researches with multivariate approaches in rice are fundamental, to define genetic trends, clusters and correlations of agronomic characters that together help selection procedures. This work aimed to reveal the agronomic performance, trends and genetic interrelationships of grain quality based on multivariate models applied to elite lines of irrigated rice. The experiment took place in the 2017/2018 harvest, held at Estação Experimental Terras Baixas (ETB), of Embrapa Clima Temperado. The study used randomized blocks design, with three replications. There were fifteen F6 lines and four control cultivars. Evaluation of intrinsic physical quality attributes with the aid of S21 grain statistical analyzer, as well as grain yield and mill yield (whole and broken grains). Performance of analysis of variance, genetic parameters and Scott Knott cluster test, linear correlation, canonical correlations, cluster analysis via generalized Mahalanobis distance, using the Toucher method, in addition to BIPLOT principal component analysis. The results showed that PH18502 and PH18701 strains presented better agronomic performance for the studied characters, by univariate analysis. The linear and canonical correlations presented demonstrate potential in the direction of selection of multiple characters and point to the possibility of indirect selection among the relevant agronomic characters for the production chain of irrigated rice.
对于水稻的遗传改良项目，多变量方法的研究是基础，以确定遗传趋势，集群和农艺性状的相关性，共同帮助选择程序。本研究旨在揭示水稻优良品系的农艺性状、籽粒品质的变化趋势及遗传相互关系。该实验在2017/2018年的收获季节进行，在Embrapa Clima Temperado的esta o Experimental Terras Baixas (ETB)举行。本研究采用随机区组设计，共3个重复。F6系15个，对照品种4个。利用S21谷物统计分析仪评价内在物理品质属性，以及籽粒产量和磨粒产量(整粒和碎粒)。性能方差分析，遗传参数和Scott Knott聚类检验，线性相关，典型相关，聚类分析通过广义马氏距离，使用Toucher方法，除BIPLOT主成分分析。单因素分析结果表明，PH18502和PH18701菌株的农艺性能较好。线性相关性和典型相关性显示了在多性状选择方向上的潜力，并指出了灌溉水稻生产链中相关农艺性状间间接选择的可能性。
{"title":"Genetic trends and multivariate interrelationships for grain quality of irrigated rice genotypes","authors":"P. H. Facchinello, I. Carvalho, E. A. Streck, G. A. Aguiar, Janaína Goveia, Michele Feijó, Roberto Ramos Pereira, P. R. R. Fagundes, Murilo Vieira Loro, L. C. Maia, A. M. Júnior","doi":"10.33158/asb.r192.v9.2023","DOIUrl":"https://doi.org/10.33158/asb.r192.v9.2023","url":null,"abstract":"For genetic improvement programs, researches with multivariate approaches in rice are fundamental, to define genetic trends, clusters and correlations of agronomic characters that together help selection procedures. This work aimed to reveal the agronomic performance, trends and genetic interrelationships of grain quality based on multivariate models applied to elite lines of irrigated rice. The experiment took place in the 2017/2018 harvest, held at Estação Experimental Terras Baixas (ETB), of Embrapa Clima Temperado. The study used randomized blocks design, with three replications. There were fifteen F6 lines and four control cultivars. Evaluation of intrinsic physical quality attributes with the aid of S21 grain statistical analyzer, as well as grain yield and mill yield (whole and broken grains). Performance of analysis of variance, genetic parameters and Scott Knott cluster test, linear correlation, canonical correlations, cluster analysis via generalized Mahalanobis distance, using the Toucher method, in addition to BIPLOT principal component analysis. The results showed that PH18502 and PH18701 strains presented better agronomic performance for the studied characters, by univariate analysis. The linear and canonical correlations presented demonstrate potential in the direction of selection of multiple characters and point to the possibility of indirect selection among the relevant agronomic characters for the production chain of irrigated rice.","PeriodicalId":297313,"journal":{"name":"Agronomy Science and Biotechnology","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116724876","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 : 2023-07-18DOI: 10.33158/asb.r190.v9.2023
Jorge Cunha Resende, É. Matsuo, G. F. Alves, Gustavo Lourenço Bomtempo, M. Nascimento, S. C. Ferreira
Genetic improvement together with statistics has contributed to the growth of the importance of soybean in Brazil. One of the contributions has been the launching of new cultivars in the national market, which requires, in its legal procedures for registration and protection, the verification of several tests, one of them being the distinguishability test. Several studies have reported that some phenotypic characters are potential in this distinction, one of them is the length of the epicotyl. In this work, the objective was to identify soybean genotypes that present low or high average, highly stable throughout the analyzed environments and that present adaptability to different environments. Two groups of experiments were conducted in a greenhouse to measure the epicotyl length of soybean plants submitted to different environments (planting season). The data obtained were analyzed using the analysis of individual variance, analysis of joint variance, Scott-Knott test and adaptability and stability through the Artificial Neural Network and non-parametric test. It can be concluded that the genotypes that showed low average for epicotyl length, wide adaptability or poor responsiveness to environmental improvements and stable over the seasons were TMG 1175 RR (in V2), BMX Tornado RR (in V2), BG 4272 (in V2), BRS283 (in V2 and V3) and FT-Cristalina (in V2 and V3). BRSMG 752 S (in V2 and V3), TMG 4185 (in V3) and BRSGO 7560 (in V3) behaved as high medium, high stability and wide adaptability. The genotypes BRS 8381, TMG 4185, MG/BR46_Conquista, BRSMG 850 GRR, BRS Valiosa RR and BG 4277 were stable and recommended for favorable environments.
{"title":"Adaptability and phenotypic stability of soybean genotypes regarding epicotyl length using artificial neural network and non-parametric test","authors":"Jorge Cunha Resende, É. Matsuo, G. F. Alves, Gustavo Lourenço Bomtempo, M. Nascimento, S. C. Ferreira","doi":"10.33158/asb.r190.v9.2023","DOIUrl":"https://doi.org/10.33158/asb.r190.v9.2023","url":null,"abstract":"Genetic improvement together with statistics has contributed to the growth of the importance of soybean in Brazil. One of the contributions has been the launching of new cultivars in the national market, which requires, in its legal procedures for registration and protection, the verification of several tests, one of them being the distinguishability test. Several studies have reported that some phenotypic characters are potential in this distinction, one of them is the length of the epicotyl. In this work, the objective was to identify soybean genotypes that present low or high average, highly stable throughout the analyzed environments and that present adaptability to different environments. Two groups of experiments were conducted in a greenhouse to measure the epicotyl length of soybean plants submitted to different environments (planting season). The data obtained were analyzed using the analysis of individual variance, analysis of joint variance, Scott-Knott test and adaptability and stability through the Artificial Neural Network and non-parametric test. It can be concluded that the genotypes that showed low average for epicotyl length, wide adaptability or poor responsiveness to environmental improvements and stable over the seasons were TMG 1175 RR (in V2), BMX Tornado RR (in V2), BG 4272 (in V2), BRS283 (in V2 and V3) and FT-Cristalina (in V2 and V3). BRSMG 752 S (in V2 and V3), TMG 4185 (in V3) and BRSGO 7560 (in V3) behaved as high medium, high stability and wide adaptability. The genotypes BRS 8381, TMG 4185, MG/BR46_Conquista, BRSMG 850 GRR, BRS Valiosa RR and BG 4277 were stable and recommended for favorable environments.","PeriodicalId":297313,"journal":{"name":"Agronomy Science and Biotechnology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131853244","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 : 2023-07-17DOI: 10.33158/asb.r195.v9.2023
Antonio Maricélio Borges de Souza, T. Campos, Kássia Barros Ferreira, Nicoly Barros Ferreira, Renata Bachin Mazzini Guedes, K. F. L. Pivetta
All palms present ornamental appeal and may be widely used in landscaping, especially the native ones because of their ecological importance, such as the jussara palm (Euterpe edulis Mart.). In this sense, aiming at maximum plant development in the urban environment, it is necessary to use high-quality seedlings; the substrate is one of the key factors that directly influence it. The objective of this study was to evaluate the initial growth of jussara palm seedlings cultivated in biosolid-based substrates, which is a material of good characteristics besides attending sustainability issues. The experimental design was entirely randomized with six treatments consisted of substrates composed by biosolid (BIO) and subsoil (SS) at different proportions (v:v): 100% SS - control; 20% BIO + 80% SS; 40% BIO + 60% SS; 60% BIO + 40% SS; 80% BIO + 20% SS; 100% BIO. Seedlings were cultivated in a greenhouse and evaluated according to the following variables: height of aerial part; root length; collar diameter; leaf number; dry mass of aerial part and of roots; total dry mass; chlorophyll content; height of aerial part/collar diameter rate; dry mass of aerial part/dry mass of roots rate; and Dickson Quality Index. There was a significant effect (p < 0.05) for all evaluated characteristics. The biosolid, combined with subsoil, may be used for 20% and 40% substrate composition, as it is potentially appropriate for jussara palm seedling production. Higher proportions were toxic to seedling growth.
所有棕榈树都具有观赏价值，可广泛用于园林绿化，特别是本地棕榈树，因为它们具有生态重要性，如jussara palm (Euterpe edulis Mart.)。从这个意义上说，为了使植物在城市环境中最大限度地发育，必须使用优质的苗木;基材是直接影响其性能的关键因素之一。本研究的目的是评价生物固体基质栽培的jusjusal palm幼苗的初始生长情况，生物固体基质是一种具有良好特性的材料，同时也解决了可持续性问题。试验设计完全随机化，6个处理由不同比例(v:v)的生物固体(BIO)和底土(SS)组成:100% SS -对照;20% bio + 80% ss;40% bio + 60% ss;60%生物+ 40% ss;80% bio + 20% ss;100%的生物。幼苗在温室中培养，根据以下变量进行评价:地上部分高度;根的长度;环直径;叶数;气生部分和根的干质量;总干质量;叶绿素含量;架空件高度/接箍直径率;地上部干质量/根率干质量;和迪克森质量指数。所有评价指标均有显著影响(p < 0.05)。生物固体与底土结合，可用于20%和40%的基质组成，因为它可能适合于沙棕幼苗生产。较高的比例对幼苗生长有害。
{"title":"Initial growth and quality of jussara palm seedlings cultivated in biosolid-based substrates","authors":"Antonio Maricélio Borges de Souza, T. Campos, Kássia Barros Ferreira, Nicoly Barros Ferreira, Renata Bachin Mazzini Guedes, K. F. L. Pivetta","doi":"10.33158/asb.r195.v9.2023","DOIUrl":"https://doi.org/10.33158/asb.r195.v9.2023","url":null,"abstract":"All palms present ornamental appeal and may be widely used in landscaping, especially the native ones because of their ecological importance, such as the jussara palm (Euterpe edulis Mart.). In this sense, aiming at maximum plant development in the urban environment, it is necessary to use high-quality seedlings; the substrate is one of the key factors that directly influence it. The objective of this study was to evaluate the initial growth of jussara palm seedlings cultivated in biosolid-based substrates, which is a material of good characteristics besides attending sustainability issues. The experimental design was entirely randomized with six treatments consisted of substrates composed by biosolid (BIO) and subsoil (SS) at different proportions (v:v): 100% SS - control; 20% BIO + 80% SS; 40% BIO + 60% SS; 60% BIO + 40% SS; 80% BIO + 20% SS; 100% BIO. Seedlings were cultivated in a greenhouse and evaluated according to the following variables: height of aerial part; root length; collar diameter; leaf number; dry mass of aerial part and of roots; total dry mass; chlorophyll content; height of aerial part/collar diameter rate; dry mass of aerial part/dry mass of roots rate; and Dickson Quality Index. There was a significant effect (p < 0.05) for all evaluated characteristics. The biosolid, combined with subsoil, may be used for 20% and 40% substrate composition, as it is potentially appropriate for jussara palm seedling production. Higher proportions were toxic to seedling growth.","PeriodicalId":297313,"journal":{"name":"Agronomy Science and Biotechnology","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126084598","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 : 2023-07-11DOI: 10.33158/asb.r191.v9.2023
Leonardo Cesar Pradebon, Alexandre Steurer, I. Carvalho, Murilo Vieira Loro, T. A. Segatto, F. S. M. Sanes, Marlon Vinícius da Rosa Sarturi, Inaê Carolina Sfalcin, G. H. Demari
The present study aimed to highlight and understand the dynamics of interaction of the levels of soil parameters that are determinant for the expression of crop productivity. The study took place in seven municipalities in the northwest of the state of Rio Grande do Sul (Barra do Guarita, Braga, Derrubadas, Miraguaí, Redentora, Tenente Portela, and Vista Gaúcha), in the year 2017/2018. Soil samples were collected in these environments, with a total of 67 soil samples. Most of the studied soils presented pH above 5,5 with 79% of the samples with CEC between 12 and 18. The values of base saturation in 82% of the soils presented values of 80%, while, for of aluminum saturation, in 87% of the samples the values were 0. As for the contents of organic matter, 60% of the soils presented contents above 2,5% with high and low levels of potassium and phosphorus, respectively. When the levels of potential acidity increase, consequently, there is a reduction in the availability of the main nutrients, micronutrients and the Ca:K ratio. On the other hand, when there is an increase in pH levels, there is a greater availability of nutrients and a reduction in potential acidity and aluminum levels.
本研究旨在强调和理解土壤参数水平相互作用的动态，这些参数是作物生产力表达的决定因素。该研究于2017/2018年在南里奥格兰德州西北部的七个城市(Barra do Guarita、Braga、Derrubadas、Miraguaí、reentora、Tenente Portela和Vista Gaúcha)进行。在这些环境中采集土壤样品，共67个土壤样品。大部分土壤的pH值在5,5以上，79%的土壤CEC值在12 ~ 18之间。82%的土壤的碱基饱和度为80%，87%的土壤的铝饱和度为0。在有机质含量方面，60%的土壤钾磷含量在2.5%以上，钾磷含量高、磷含量低。因此，当潜在酸度水平增加时，主要营养素、微量营养素和钙钾比的可用性就会减少。另一方面，当pH值增加时，营养物质的可用性就会增加，潜在的酸度和铝含量也会降低。
{"title":"Soil attributes and their interralationships in Rio Grande do Sul","authors":"Leonardo Cesar Pradebon, Alexandre Steurer, I. Carvalho, Murilo Vieira Loro, T. A. Segatto, F. S. M. Sanes, Marlon Vinícius da Rosa Sarturi, Inaê Carolina Sfalcin, G. H. Demari","doi":"10.33158/asb.r191.v9.2023","DOIUrl":"https://doi.org/10.33158/asb.r191.v9.2023","url":null,"abstract":"The present study aimed to highlight and understand the dynamics of interaction of the levels of soil parameters that are determinant for the expression of crop productivity. The study took place in seven municipalities in the northwest of the state of Rio Grande do Sul (Barra do Guarita, Braga, Derrubadas, Miraguaí, Redentora, Tenente Portela, and Vista Gaúcha), in the year 2017/2018. Soil samples were collected in these environments, with a total of 67 soil samples. Most of the studied soils presented pH above 5,5 with 79% of the samples with CEC between 12 and 18. The values of base saturation in 82% of the soils presented values of 80%, while, for of aluminum saturation, in 87% of the samples the values were 0. As for the contents of organic matter, 60% of the soils presented contents above 2,5% with high and low levels of potassium and phosphorus, respectively. When the levels of potential acidity increase, consequently, there is a reduction in the availability of the main nutrients, micronutrients and the Ca:K ratio. On the other hand, when there is an increase in pH levels, there is a greater availability of nutrients and a reduction in potential acidity and aluminum levels.","PeriodicalId":297313,"journal":{"name":"Agronomy Science and Biotechnology","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126304504","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 : 2023-07-04DOI: 10.33158/asb.r189.v9.2023
Renan Jardel Rusch Treter, Robison Davi Patias Furlan, I. Carvalho, Leonardo Cesar Pradebon, J. Sangiovo, Inaê Carolina Sfalcin, Murilo Vieira Loro, José Antonio Gonzalez Silva, Aljian Antônio Alban, M. Challiol, L. L. Ferreira
This work aimed to position white oat cultivars for the organic system, and to highlight which characteristics determine grain yield and their interrelationships. The research was conducted at Instituto Regional de Desenvolvimento Rural belonging to Universidade Regional do Noroeste do Estado do Rio Grande do Sul, located in the municipality of Augusto Pestana – RS. The experimental design used was randomized blocks with treatments arranged in four replications. The treatments corresponded to the cultivars: IPR Artemis, IPR Afrodite, URS Corona, URS Brava and URS Taura. The characters measured in the useful area of each experimental unit were: final plant population per square meter (PPSM, units), days between sowing and flowering (DF, days), days between sowing and maturation (DM, days) , number of tillers (TILL, units), percentage of lodging (LOG, %), intensity of diseases damage (INTD, %), plant height (PH, cm), height of panicle insertion (HPI, cm), number of panicles per square meter (NPSM, units), number of grains per panicle (NGP, units), grain weight per panicle (GWP, g), thousand grain weight (TGW, g), grain yield (GY, kg). The cultivar URS Afrodite is superior for plant height, height of panicle insertion, number of panicles per square meter. The cultivar URS Corona stood out for the number of grains per panicle, grain weight per panicle with a grain yield of 1885.08 kg ha-1 and low incidence of diseases, being recommended for the organic system in the Northwest region of Rio Grande do Sul.
{"title":"Agronomic performance of white oats in organic system in the northwest region of Rio Grande do Sul","authors":"Renan Jardel Rusch Treter, Robison Davi Patias Furlan, I. Carvalho, Leonardo Cesar Pradebon, J. Sangiovo, Inaê Carolina Sfalcin, Murilo Vieira Loro, José Antonio Gonzalez Silva, Aljian Antônio Alban, M. Challiol, L. L. Ferreira","doi":"10.33158/asb.r189.v9.2023","DOIUrl":"https://doi.org/10.33158/asb.r189.v9.2023","url":null,"abstract":"This work aimed to position white oat cultivars for the organic system, and to highlight which characteristics determine grain yield and their interrelationships. The research was conducted at Instituto Regional de Desenvolvimento Rural belonging to Universidade Regional do Noroeste do Estado do Rio Grande do Sul, located in the municipality of Augusto Pestana – RS. The experimental design used was randomized blocks with treatments arranged in four replications. The treatments corresponded to the cultivars: IPR Artemis, IPR Afrodite, URS Corona, URS Brava and URS Taura. The characters measured in the useful area of each experimental unit were: final plant population per square meter (PPSM, units), days between sowing and flowering (DF, days), days between sowing and maturation (DM, days) , number of tillers (TILL, units), percentage of lodging (LOG, %), intensity of diseases damage (INTD, %), plant height (PH, cm), height of panicle insertion (HPI, cm), number of panicles per square meter (NPSM, units), number of grains per panicle (NGP, units), grain weight per panicle (GWP, g), thousand grain weight (TGW, g), grain yield (GY, kg). The cultivar URS Afrodite is superior for plant height, height of panicle insertion, number of panicles per square meter. The cultivar URS Corona stood out for the number of grains per panicle, grain weight per panicle with a grain yield of 1885.08 kg ha-1 and low incidence of diseases, being recommended for the organic system in the Northwest region of Rio Grande do Sul.","PeriodicalId":297313,"journal":{"name":"Agronomy Science and Biotechnology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128270110","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 : 2023-07-04DOI: 10.33158/asb.r188.v9.2023
Aline Luiza Schmidt, I. Carvalho, Leonardo Cesar Pradebon, José Antonio Gonzalez Silva, Murilo Vieira Loro, Inaê Carolina Sfalcin, E. D. Port, T. A. Segatto, Aljian Antônio Alban, M. Challiol
The objective of the study was to evidence efficient management strategies in order to maximize the organic cultivation system promotes a new dynamic in the behavior of white oat genotypes, where it is necessary to evidence genotypes with superior performance. The study aimed to highlight the productive performance and genetic diversity of white oat genotypes in an organic system. The experiment was carried out in the municipality of Augusto Pestana - RS, in the 2021 crop year. The experimental design used was randomized blocks with four treatments arranged in five replications. The treatments correspond to the cultivars IPR Artemis, URS Taura, URS Corona and URS Brava. It is observed that there is a possibility of indirect selection of productive genotypes through the mass of grains per panicle and number of grains per panicle. Brava and Taura are the most divergent genotypes. Through the analysis of the white oat genotypes, it is highlighted that it is possible to promote the proper positioning of the genotypes in the organic system. In addition, the existence of genetic divergence between the genotypes is evidenced. The components that determined the productivity of white oat cultivars in organic system were number of plants per square meter, number and grain weight per plant. The cultivar IPR Artemis and URS Taura showed similarity for plant height and height of panicle insertion, tillering and grain yield, URS Brava and URS Corona are similar in terms of the number of grains per plant. IPR Artemis is recommended for grain yield in an organic system.
{"title":"Organic system and reflections on white oat grain productivity components","authors":"Aline Luiza Schmidt, I. Carvalho, Leonardo Cesar Pradebon, José Antonio Gonzalez Silva, Murilo Vieira Loro, Inaê Carolina Sfalcin, E. D. Port, T. A. Segatto, Aljian Antônio Alban, M. Challiol","doi":"10.33158/asb.r188.v9.2023","DOIUrl":"https://doi.org/10.33158/asb.r188.v9.2023","url":null,"abstract":"The objective of the study was to evidence efficient management strategies in order to maximize the organic cultivation system promotes a new dynamic in the behavior of white oat genotypes, where it is necessary to evidence genotypes with superior performance. The study aimed to highlight the productive performance and genetic diversity of white oat genotypes in an organic system. The experiment was carried out in the municipality of Augusto Pestana - RS, in the 2021 crop year. The experimental design used was randomized blocks with four treatments arranged in five replications. The treatments correspond to the cultivars IPR Artemis, URS Taura, URS Corona and URS Brava. It is observed that there is a possibility of indirect selection of productive genotypes through the mass of grains per panicle and number of grains per panicle. Brava and Taura are the most divergent genotypes. Through the analysis of the white oat genotypes, it is highlighted that it is possible to promote the proper positioning of the genotypes in the organic system. In addition, the existence of genetic divergence between the genotypes is evidenced. The components that determined the productivity of white oat cultivars in organic system were number of plants per square meter, number and grain weight per plant. The cultivar IPR Artemis and URS Taura showed similarity for plant height and height of panicle insertion, tillering and grain yield, URS Brava and URS Corona are similar in terms of the number of grains per plant. IPR Artemis is recommended for grain yield in an organic system.","PeriodicalId":297313,"journal":{"name":"Agronomy Science and Biotechnology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134270830","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：