Revista de Agricultura Neotropical最新文献_第4页

APPLICATION OF Azospirillum brasilense AND NITROGEN IN TOPDRESSING IN CORN HYBRIDS 巴西固氮菌和氮在玉米杂交种覆盖中的应用

IF 0.3

Revista de Agricultura Neotropical Pub Date : 2023-03-16 DOI: 10.32404/rean.v10i1.7055

Rafael Cadore, Antônio Paulino da Costa Netto, Edésio Fialho dos Reis, Simério Carlos Silva Cruz, Alex Oliveira Smaniotto, Taynara Peres de Lima, M. Rossato, Ana Cláudia Alves D´ Abadia

{"title":"APPLICATION OF Azospirillum brasilense AND NITROGEN IN TOPDRESSING IN CORN HYBRIDS","authors":"Rafael Cadore, Antônio Paulino da Costa Netto, Edésio Fialho dos Reis, Simério Carlos Silva Cruz, Alex Oliveira Smaniotto, Taynara Peres de Lima, M. Rossato, Ana Cláudia Alves D´ Abadia","doi":"10.32404/rean.v10i1.7055","DOIUrl":"https://doi.org/10.32404/rean.v10i1.7055","url":null,"abstract":"Corn (Zea mays L.) is the most cultivated cereal in the world. The high yields obtained for this crop are mainly linked to nitrogen requirements. Technologies that aim to reduce costs with nitrogen fertilizers, with less environmental impact, such as diazotrophic bacteria, should be considered an advantageous alternative for this crop. The present study aimed to evaluate two corn hybrids, BioGene 7046® and Dekalb 310®, with three topdressing nitrogen doses (0.35 and 70 kg ha-1 of N) associated with four application methods of Azospirillum brasilense (without inoculation, seed inoculation, foliar inoculation, and the combination of inoculation via seeds and leaves). A randomized block design with four replications arranged in a 2x3x4 factorial scheme was used to evaluate variables related to growth and development, physiological analysis of nitrate reductase enzyme activity, and yield variables and their components. The use of Azospirillum brasilense did not affect the development of corn plants and did not increase grain yield. In the edaphoclimatic conditions in which this research was developed, nitrogen fertilization at doses of 35 and 70 kg ha-1 benefit nutrition, development, and corn yield components but are insufficient to increase grain yield.","PeriodicalId":55957,"journal":{"name":"Revista de Agricultura Neotropical","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42791003","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}

引用次数: 0

CHARACTERIZATION OF SUBSTRATES AND THEIR INFLUENCE ON GERMINATION AND GROWTH OF ASPARAGUS SEEDLINGS 基质特性及其对芦笋幼苗萌发和生长的影响

IF 0.3

Revista de Agricultura Neotropical Pub Date : 2023-03-14 DOI: 10.32404/rean.v10i1.7254

Ingridy Do Nascimento Tavares, José Maria Arcanjo Alves, Sandra Cátia Pereira Uchôa, Carlos Enrique Canche Iuit, Yenara Alves Guedes, Deyse Cristina Oliveira Silva

{"title":"CHARACTERIZATION OF SUBSTRATES AND THEIR INFLUENCE ON GERMINATION AND GROWTH OF ASPARAGUS SEEDLINGS","authors":"Ingridy Do Nascimento Tavares, José Maria Arcanjo Alves, Sandra Cátia Pereira Uchôa, Carlos Enrique Canche Iuit, Yenara Alves Guedes, Deyse Cristina Oliveira Silva","doi":"10.32404/rean.v10i1.7254","DOIUrl":"https://doi.org/10.32404/rean.v10i1.7254","url":null,"abstract":"The survival and performance of vegetables in the field production cycle depend on the seedling quality and, in turn, the substrate. Asparagus is not part of the vegetables cultivated in Boa Vista-RR, so basic studies, such as substrate preparation, are necessary. Thus, the present study aimed to evaluate the effect of six substrates on the initial development of asparagus seedlings in two growth phases. For this, an experiment was set up in an entirely randomized design, with treatments arranged in a factorial scheme (6 x 2). In the initial phase of the study, six compositions were evaluated with the following materials: (S - soil; M - goat manure; C - root and shoot of cassava) in two sowing seasons. The S40M30C30 substrate stands out by having better particle distribution, 79% ranging between 2 and 0.5 mm and 21% less than 0.5 mm, wet bulk density of 0.823 g cm-3 and dry of 0.726 g cm-3, relative humidity of 7.1% and particle density of 1.88 g cm-3. This substrate also provided higher growth variables than the others and is suitable for growing asparagus in its initial phase. Asparagus seeds should be sown in a substrate prepared with soil and organic waste (goat manure and residue from the shoot and roots of cassava) at least seven days before sowing.","PeriodicalId":55957,"journal":{"name":"Revista de Agricultura Neotropical","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47093988","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}

引用次数: 0

DOES THE USE OF COVER CROPS OPTIMIZE THE USE OF MINERAL NITROGEN IN SWEET PEPPER CULTIVATION? 覆盖作物的使用是否优化了甜椒种植中矿物氮的利用？

IF 0.3

Revista de Agricultura Neotropical Pub Date : 2023-03-08 DOI: 10.32404/rean.v10i1.7303

João Flávio Floriano Borges Gomides, Eduardo Pradi Vendruscolo, Murilo Battistuzzi Martins, Fernanda Espíndola Assumpção Bastos, Tassila Aparecida do Nascimento Araújo, Thaise Dantas, Cássio De Castro Seron

{"title":"DOES THE USE OF COVER CROPS OPTIMIZE THE USE OF MINERAL NITROGEN IN SWEET PEPPER CULTIVATION?","authors":"João Flávio Floriano Borges Gomides, Eduardo Pradi Vendruscolo, Murilo Battistuzzi Martins, Fernanda Espíndola Assumpção Bastos, Tassila Aparecida do Nascimento Araújo, Thaise Dantas, Cássio De Castro Seron","doi":"10.32404/rean.v10i1.7303","DOIUrl":"https://doi.org/10.32404/rean.v10i1.7303","url":null,"abstract":"The present study aimed to evaluate the effect of the combination between nitrogen rates and the management of straw mulches for the cultivation of peppers. The treatments comprised three managements of straw on the ground (no straw, Urochloa ruziziensis, and millet) and five nitrogen rates (0, 50, 100, 150, and 200% of the recommended dose of 120 kg ha-1). Mulch presence results in better physiological activity in the plants, while the rates of N positively affect the physiological and biometric characteristics of the plants up to 127.50% and 181.21%, respectively. Rates up to 145.62% increased fruit length in the treatment composed of U. ruziziensis straw, while rates relative to 154.65%, 127.98%, and 138.55% for the control, U. ruziziensis and millet treatments provided productive gains of 202.52%, 267.44%, and 473.18%. We concluded that straw mulching improves the physiological condition of sweet pepper plants and the application of nitrogen fertilizer; using straw from millet plants, combined with the dose of 138.55% N, results in greater yield gains.","PeriodicalId":55957,"journal":{"name":"Revista de Agricultura Neotropical","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47471732","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}

引用次数: 0

MANEUVERS: OPERATIONAL PERFORMANCE OF SUGARCANE HARVESTERS 机动:甘蔗收割机的操作性能

IF 0.3

Revista de Agricultura Neotropical Pub Date : 2023-03-07 DOI: 10.32404/rean.v10i1.7095

Welligton Morais Gallo, Jenyffer Da Silva Gomes Santos, Hernani Mazier Júnior, Angel Pontin Garcia, D. Albiero

{"title":"MANEUVERS: OPERATIONAL PERFORMANCE OF SUGARCANE HARVESTERS","authors":"Welligton Morais Gallo, Jenyffer Da Silva Gomes Santos, Hernani Mazier Júnior, Angel Pontin Garcia, D. Albiero","doi":"10.32404/rean.v10i1.7095","DOIUrl":"https://doi.org/10.32404/rean.v10i1.7095","url":null,"abstract":"Sugarcane is among the main crops that compose Brazilian’s agribusiness. Therefore, cropping has a significant economic and social role, as production increases yearly. Currently, in Brazil, the mechanized harvest of sugarcane is growing fast in most of the country. The improvement in the harvester’s performance allows for fewer expenses and a higher operating yield. This study aimed to analyze the correlation between fuel consumption and maneuvering time of sugarcane harvesters in three different areas (W1 > 20 ha, 10 ha < W2< 20 ha, and W3 < 10 ha). Were calculated fuel consumption per maneuver in each area and analyzed how this value can change due to the tracks' spatial variability combined with the machine's hourly consumption. Based on the variable maneuvering time results and consumption per maneuver, the treatment W3 was the one that obtained the lowest fuel consumption with the T maneuver, due to the shorter mean maneuvering time, besides the more significant available track space to perform them. So that is the best configuration that aims at more significant savings in production cost.","PeriodicalId":55957,"journal":{"name":"Revista de Agricultura Neotropical","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45194168","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}

引用次数: 0

BIOCHEMICAL COMPOSITION AND BIOLOGICAL POTENTIAL OF ORA-PRO-NOBIS FRUIT: AN OVERVIEW ora-pro-nobis果实的生化成分及生物学潜力综述

IF 0.3

Revista de Agricultura Neotropical Pub Date : 2023-03-06 DOI: 10.32404/rean.v10i1.7322

Leirson Rodrigues da Silva, Ana Rosa De Figueiredo, Milena Maria Tomaz de Oliveira, Cristiane Maria Ascari Morgado, Pedro Augusto Resende Rimoli, Lilia Aparecida Salgado de Morais

引用次数: 0

FUNGITOXITY OF Mentha spicata OIL ON THE GROWTH OF FUNGI OF THE GENERA Colletotrichum AND Fusarium 薄荷油对炭疽菌属和镰刀菌属真菌生长的毒力研究

IF 0.3

Revista de Agricultura Neotropical Pub Date : 2023-03-03 DOI: 10.32404/rean.v10i1.7280

Gustavo Henrique Silveira de Souza, G. F. Paiva, Angelica Rodrigues Alves, Luiz Henrique Costa Mota, Francisco José Teixeira Gonçalves, Nancy Farfan Carrasco

{"title":"FUNGITOXITY OF Mentha spicata OIL ON THE GROWTH OF FUNGI OF THE GENERA Colletotrichum AND Fusarium","authors":"Gustavo Henrique Silveira de Souza, G. F. Paiva, Angelica Rodrigues Alves, Luiz Henrique Costa Mota, Francisco José Teixeira Gonçalves, Nancy Farfan Carrasco","doi":"10.32404/rean.v10i1.7280","DOIUrl":"https://doi.org/10.32404/rean.v10i1.7280","url":null,"abstract":"Increasingly, the population has been concerned that the production of these foods is free of pesticide residues, so it is necessary to search for viable and effective alternatives to control pests and diseases. Thus, the use of essential oil from plants with insecticidal and fungicidal potential has been successfully studied. The study aimed to demonstrate the effect of Mentha spicata essential oil on the control of Fusarium and Colletotrichum fungi in vitro. The essential oil of M. spicata used was purchased from the chemical industry Ferquima, being diluted in a 2% Tween 20 solution (being 98 mL of distilled water + 2 mL of Tween 20), which was added in 60 mL of a PDA culture medium, resulting in final essential oil concentrations: 0 ppm; 0.83 ppm; 1.67 ppm; 8.33 ppm, and 16.67 ppm and poured into 90 mm diameter Petri dishes. The evaluations took place periodically every 48 hours for eight days, performing measurements of the diameters of the colonies. The results evidenced that the analyzed fungi, when submitted to treatments of different doses, suffered fungistatic action according to the gradual increase of the doses. Thus, it is possible to conclude that M. spicata oil provided the in vitro growth control of Fusarium sp. and Colletorichum sp.","PeriodicalId":55957,"journal":{"name":"Revista de Agricultura Neotropical","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41677028","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}

引用次数: 0

SUGARCANE BAGASSE ASH DOSES AFFECT SOIL CHEMICAL ATTRIBUTES AND PIGEON PEA INITIAL PERFORMANCE 蔗渣灰用量对土壤化学性质和豌豆初始性能的影响

IF 0.3

Revista de Agricultura Neotropical Pub Date : 2023-03-03 DOI: 10.32404/rean.v10i2.7150

Giovana Oliveira Rubio, Diego Oliveira Ribeiro, Zaqueu Henrique de Souza, Rogério Machado Pereira, Jonathan Goularte Silva, Bruno Dalmolin

{"title":"SUGARCANE BAGASSE ASH DOSES AFFECT SOIL CHEMICAL ATTRIBUTES AND PIGEON PEA INITIAL PERFORMANCE","authors":"Giovana Oliveira Rubio, Diego Oliveira Ribeiro, Zaqueu Henrique de Souza, Rogério Machado Pereira, Jonathan Goularte Silva, Bruno Dalmolin","doi":"10.32404/rean.v10i2.7150","DOIUrl":"https://doi.org/10.32404/rean.v10i2.7150","url":null,"abstract":"Brazil stands out in the international scenario as the largest producer of sugarcane, processing billions of tons. Thus, this activity generates residues, such as ashes from bagasse burning and straw from sugarcane cleaning and from the production of sugar, alcohol and thermal energy. Therefore, the objective was to evaluate the initial performance and chlorophyll content of pigeon pea and the chemical attributes of the soil after application of ash doses. The experiment was conducted in 2021, in a greenhouse located in southwestern Goiás, Brazil. The design used was completely randomized, composed of five ash doses: 10, 20, 30, 40 and 50 Mg ha-1 and a control treatment, with four replicates, totaling 24 experimental units. The use of only ash as a fertilizer source causes linear increases in the initial growth of pigeon pea and in the contents of total chlorophyll and chlorophyll b, reaching the maximum increments with the estimated ash doses of 35.9 and 38.9 Mg ha-1. Applications of high ash doses promoted improvements in soil fertility, with increase in pH, P, K and base saturation as well as reduction in aluminum content and aluminum saturation. Calcium and magnesium contents reached the maximum increments with the estimated ash doses of 39.5 and 66.7 Mg ha-1, respectively.","PeriodicalId":55957,"journal":{"name":"Revista de Agricultura Neotropical","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42518621","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}

引用次数: 0

HOUSE FLY LARVAE HARVEST YIELD USING THREE DIFFERENT RATIONS OF WHEAT BRAND AND PIG MANURE AS LARVAL DEVELOPMENT MEDIA 以麦牌和猪粪三种不同的口粮作为幼虫发育介质，家蝇幼虫收获产量

IF 0.3

Revista de Agricultura Neotropical Pub Date : 2023-02-23 DOI: 10.32404/rean.v10i2.6997

Enrique Casanovas Cosío, Reina Reyes Reyes, Alexis Suárez del Villar Labastida, Ana Álvarez Sánchez, Raúl Padilla Morales

{"title":"HOUSE FLY LARVAE HARVEST YIELD USING THREE DIFFERENT RATIONS OF WHEAT BRAND AND PIG MANURE AS LARVAL DEVELOPMENT MEDIA","authors":"Enrique Casanovas Cosío, Reina Reyes Reyes, Alexis Suárez del Villar Labastida, Ana Álvarez Sánchez, Raúl Padilla Morales","doi":"10.32404/rean.v10i2.6997","DOIUrl":"https://doi.org/10.32404/rean.v10i2.6997","url":null,"abstract":"The aim of the research was to compare the yields of house fly larvae using different proportions of wheat bran and swine feces as larval development medium, in a randomized block experimental design with five replications: A-100 % wheat bran; B- 50% wheat bran and 50% swine feces; C- 100% swine feces. Measurements of the temperature of the substrates, as well as the temperature and relative humidity of the place where the flies were developing were made every 24 hours. The larval yield per m2 and kg of substrate, (including the water used to moisten the larval media) were also registered. The wheat bran substrate presented the highest temperature values (36.78 oC), with values above the ambient temperature. The relative humidity varied between 44 and 68%. The amount of water used per square meter was 28.75; 27.72 and 28.87 L for A, B and C treatments, respectively. The highest yield for all substrates was obtained during the first harvest after six days with the highest values for treatment B with 2869.11 g m²-1 and 181.16 g kg-1, respectively. The transformation of the crude protein of the substrates by the fly larvae was between 28.0 and 41.0%, with the highest value for treatment B with 2869,11 g m² -1 and 181,16 g kg2-1 . No presence of pathogenic agents was observed in the harvested larvae.","PeriodicalId":55957,"journal":{"name":"Revista de Agricultura Neotropical","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47109231","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}

引用次数: 0

BIOLOGICAL CONTROL OF Corynespora cassicola AND Drechslera tritici-repentis 玉米螟和小锥虫的生物防治

IF 0.3

Revista de Agricultura Neotropical Pub Date : 2023-02-02 DOI: 10.32404/rean.v9i4.7111

Aveline Avozani, A. Tumelero, Rosane Baldiga Tonin, N. Denardin, Abimael Gomes Silva, F. R. Garcés-Fiallos

{"title":"BIOLOGICAL CONTROL OF Corynespora cassicola AND Drechslera tritici-repentis","authors":"Aveline Avozani, A. Tumelero, Rosane Baldiga Tonin, N. Denardin, Abimael Gomes Silva, F. R. Garcés-Fiallos","doi":"10.32404/rean.v9i4.7111","DOIUrl":"https://doi.org/10.32404/rean.v9i4.7111","url":null,"abstract":"Chemical control is the most widely used method for disease management in significant crops such as soybeans and wheat. However, for a few years biological control has gained prominence. Thus, we evaluated the antagonism of bacteria Pseudomonas fluorencens, Pantoea aglomerans, and Bacillus sp. on the phytopathogens Corynespora cassiicola and Drechslera tritici-repentis, previously isolated from soybean and wheat leaves, respectively. The experiments were carried out under controlled conditions at the Phytobacteriology Laboratory of the Faculty of Agronomy and Veterinary Medicine (FAVM), University of Passo Fundo (UPF), Rio Grande do Sul, Brazil. The treatments were: T1: P. Fluorencens + pathogen; T2: P. aglomerans + pathogen; T3: Bacillus spp. + pathogen, and T4: pathogen (control). In each experiment (C. cassiicola and D. tritici-repentis), a completely randomized design with six replications was used. The data were submitted to linear regression analysis, obtaining the daily increase rate (slope). The final time data was submitted to the ANOVA, and the means were compared by the Tukey test (P < 0.05). P. fluorescens, P. agglomerans, and Bacillus sp. reduced mycelial growth by 74 and 87% of C. cassiicola and D. tritici-repentis, respectively. Although this study was carried out under in vitro conditions, it can serve as a basis for other biological control studies, especially about the management of leaf spots caused by C. cassiicola and D. tritici-repentis, under field conditions.","PeriodicalId":55957,"journal":{"name":"Revista de Agricultura Neotropical","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45273645","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}

引用次数: 0

PLANT PHYSIOLOGICAL PERFORMANCE AND SEED CHEMICAL COMPOSITION OF SOYBEAN UNDER DIFFERENT SPATIAL ARRANGEMENT 不同空间布局条件下大豆的植物生理特性及种子化学成分

IF 0.3

Revista de Agricultura Neotropical Pub Date : 2023-02-02 DOI: 10.32404/rean.v10i1.6850

D. Nobre, R. R. Silva, Vinicius Guimarães Nasser, G. Silva, L. A. Aquino, W. Macedo

{"title":"PLANT PHYSIOLOGICAL PERFORMANCE AND SEED CHEMICAL COMPOSITION OF SOYBEAN UNDER DIFFERENT SPATIAL ARRANGEMENT","authors":"D. Nobre, R. R. Silva, Vinicius Guimarães Nasser, G. Silva, L. A. Aquino, W. Macedo","doi":"10.32404/rean.v10i1.6850","DOIUrl":"https://doi.org/10.32404/rean.v10i1.6850","url":null,"abstract":"Few studies present interactions among plant physiological and seed chemical composition of soybean cultivates under different arrangements. Therefore, this study seeks to understand this relationship between space occupation and product quality. We grew two soybean cultivars (Tec 7849 Ipro and Monsoy 6972 Ipro) in four different spatial arrangements (50.0 x 7.1; 40.0 x 8.9; 30.0 x 11.9 and 18.9 x 18.9 or 16.2 x 16.2 cm, respectively). During V4 and R2 phenological stages, we analyzed the gas exchange, and at the harvest were composed two different lots: freshly harvested seeds and the seeds subjected to accelerated aging; in both lots, we evaluated germination test, vigor, germination speed index, seedling fresh mass, and the determination of the chemical composition of the seeds. For experiment conducted to analyze physiological parameters we adopted the factorial scheme 2x2x4 (two evaluation periods x two soybean cultivars x four spatial arrangements), and for seed quality and chemical composition, we adopted the factorial scheme 2x4 (two soybean cultivars x four spatial crop arrangements). The vegetative stage was crucial for better gas exchange efficiency, and the spatial arrangements positively influenced the physiological and chemical quality of the seeds for soybean crop, where the fitted arrangement was observed in 40.0 cm between rows and 8.9 cm between plants for the cultivar Tec 7849 Ipro and 50.0 cm between rows and 5.3 cm between plants, for Monsoy 6972 Ipro. Adjusts in spatial arrangements can promote beneficial responses in seed quality.","PeriodicalId":55957,"journal":{"name":"Revista de Agricultura Neotropical","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41682351","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}

引用次数: 0