Revista Ceres最新文献_第7页

Drought, heat, and their combined effect on the photosynthetic performance of Psidium myrtoides O. Berg (Myrtaceae) 干旱、高温及其对桃金娘科桃金娘光合性能的影响

Revista Ceres Pub Date : 2023-01-01 DOI: 10.1590/0034-737x202370050002

Icaro Leite Souza, Ramon Negrão Santos Junior, Leonardo Faria-Silva, Diolina Moura Silva

{"title":"Drought, heat, and their combined effect on the photosynthetic performance of Psidium myrtoides O. Berg (Myrtaceae)","authors":"Icaro Leite Souza, Ramon Negrão Santos Junior, Leonardo Faria-Silva, Diolina Moura Silva","doi":"10.1590/0034-737x202370050002","DOIUrl":"https://doi.org/10.1590/0034-737x202370050002","url":null,"abstract":"Popularly known as araçá-una, Psidium myrtoides is an endemic tree species in Brazil, with fruits much appreciated by the fauna. It is indicated for the composition of reforestation and for enriching the vegetation of degraded areas. This work aimed to evaluate the effects of drought, heat, and the interaction of both in the physiological attributes of Psidium myrtoides plants. Monitored fluorescence, gas exchange, and chlorophyll index in araçá-una plants induced by drought, heat, and the combination of both during 1, 3, and 7 days after treatment induction (DAT). After, the plants were returned to their initial condition, and their recovery was evaluated at 15 DAT. The results indicate that Psidium myrtoides plants reduce photosynthetic activity in the absence of water, contrary to what has been shown in other studies; in addition, they are not potentiated by the combination with heat. Therefore, we conclude that this species has a potential tolerance to heat (Tmean 30.3 °C). However, if water is available in the soil, it maintains photosynthetic activity at normal levels.","PeriodicalId":21236,"journal":{"name":"Revista Ceres","volume":"366 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136201929","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

Water balance and technical-financial performance of irrigation in the cassava cultivation 木薯栽培灌溉的水分平衡与技术经济效益

Revista Ceres Pub Date : 2023-01-01 DOI: 10.1590/0034-737x202370050007

Ricardo Barros Silva, Iêdo Teodoro, José Leonaldo de Souza, Ricardo Araújo Ferreira Júnior, Marcos Alex dos Santos, Gleica Maria Correia Martins

{"title":"Water balance and technical-financial performance of irrigation in the cassava cultivation","authors":"Ricardo Barros Silva, Iêdo Teodoro, José Leonaldo de Souza, Ricardo Araújo Ferreira Júnior, Marcos Alex dos Santos, Gleica Maria Correia Martins","doi":"10.1590/0034-737x202370050007","DOIUrl":"https://doi.org/10.1590/0034-737x202370050007","url":null,"abstract":"The objective, in this research, was to evaluate the agricultural productivity and the financial performance of levels of irrigation in the cassava. For this, experiment was carried out, under a randomized block design, with six irrigation levels, as a function of crop evapotranspiration (L0 = 0% (rainfed), L1 = 40%, L2 = 80%, L3 = 120%, L4 = 160% and L5 = 200% of ETC) and four repetitions. Was evaluated: length and mass of roots, productivity of maximum physical and economic efficiency of roots and productivity of the aerial part. The irrigation level L5 or total useful water of 1,023 mm, got greatest productivity of the aerial part, 57 Mg ha-1. With a total useful water of 926 mm, this irrigation level, generated the greatest length and mass of roots per plant and the maximum physical productivity, 94 Mg ha-1. As well as the root yield of maximum economic efficiency, which is achieved with a total usable water, 914 mm. Among the irrigation levels studied, L3 (963 mm) is the one that provides the greatest productivity of roots, 90 Mg ha-1, and gross revenue 167% higher than in areas cultivated under rainfed conditions. Therefore, irrigation of cassava is economically viable.","PeriodicalId":21236,"journal":{"name":"Revista Ceres","volume":"329 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136202213","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

Chemical composition of pequi essential oil (Caryocar brasiliense) and nematicidal activity in the control of Meloidogyne javanica 巴西石竹精油的化学成分及防治爪哇丝虫病的杀线虫活性

Revista Ceres Pub Date : 2023-01-01 DOI: 10.1590/0034-737x202370050005

Átila Alves Marques, Bruno Nogueira de Sousa, Nathália Nascimento Guimarães, Carla de Moura Martins, Rodrigo Vieira da Silva

{"title":"Chemical composition of pequi essential oil (Caryocar brasiliense) and nematicidal activity in the control of Meloidogyne javanica","authors":"Átila Alves Marques, Bruno Nogueira de Sousa, Nathália Nascimento Guimarães, Carla de Moura Martins, Rodrigo Vieira da Silva","doi":"10.1590/0034-737x202370050005","DOIUrl":"https://doi.org/10.1590/0034-737x202370050005","url":null,"abstract":"The phytonematodes seriously harm plants worldwide, reducing agricultural productivity, especially root-knot nematodes, genus Meloidogyne. An alternative form of control for this pathogen is the use of essential oils, which have a complex mixture of compounds with potential nematicidal activity. The objective of this work was to identify the chemical compounds present in the essential oil of pequi and to verify the efficiency of the oil in the control of Meloidogyne javanica. The identification of chemical compounds was performed by comparing the mass spectra obtained with the spectra present in the equipment library, Nist08. Eighty-second stage juveniles (J2) were incubated in the following treatments: control 0 (2 mL of distilled water) 2, 4, 8 and 16 mg L-1 of pequi essential oil (PEO). The results obtained in the experiment were significant, with a high percentage of mortality of J2 in the treatment T5 (16 mg L-1) of 82% and T3 (4 mg L-1) 66%, respectively. Among the compounds identified, 58.3% are esters, highlight for ethyl hexanoate, and 25.0% are monoterpenes, and all are nematicidal compounds. Pequi essential oil has the potential to be used in the control of M. javanica.","PeriodicalId":21236,"journal":{"name":"Revista Ceres","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135101749","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

Grazing management under integrated crop-livestock system on physical soil attributes and grain yield soybean 作物-牲畜综合系统下的放牧管理对土壤物理属性和大豆产量的影响

Revista Ceres Pub Date : 2023-01-01 DOI: 10.1590/0034-737x202370010007

T. N. Martin, Marcos DA Silva Brum, Vinícius dos Santos Cunha, P. Schaefer, J. Cechin, Rodrigo Pizzani

引用次数: 0

Cucurbit Powdery Mildew Race Identification by Triplet-Septet and Disease Progress Estimation 瓜类白粉病的三联体鉴定及病情进展评估

Revista Ceres Pub Date : 2023-01-01 DOI: 10.1590/0034-737x202370010011

H. Rabelo, L. T. Braz, J. McCreight

引用次数: 0

Influence of humus on chromium absorption by coffee seedlings grown on substrate containing tannery sludge 腐殖质对咖啡幼苗在制革污泥基质上吸收铬的影响

Revista Ceres Pub Date : 2023-01-01 DOI: 10.1590/0034-737x202370010010

S. S. Berilli, Dhiego da Silva Oliveira, Leonardo Martineli, L. L. Pereira, M. Cunha, S. Pireda

引用次数: 0

Non-destructive method for estimating leaf area of Ocimum gratissimum L. using leaf dimensions 利用叶片尺寸估算海参叶面积的无损方法

Revista Ceres Pub Date : 2023-01-01 DOI: 10.1590/0034-737x202370050008

João Everthon da Silva Ribeiro, Ester dos Santos Coêlho, Thiago Jardelino Dias, Marlenildo Ferreira Melo, Manoel Bandeira de Albuquerque

{"title":"Non-destructive method for estimating leaf area of Ocimum gratissimum L. using leaf dimensions","authors":"João Everthon da Silva Ribeiro, Ester dos Santos Coêlho, Thiago Jardelino Dias, Marlenildo Ferreira Melo, Manoel Bandeira de Albuquerque","doi":"10.1590/0034-737x202370050008","DOIUrl":"https://doi.org/10.1590/0034-737x202370050008","url":null,"abstract":"Basil (Ocimum gratissimum - Lamiaceae), is a sub-shrub plant species with great economic importance for several regions, and studies on its growth, physiology, and reproduction become needed. The aimed research was to obtain a regression equation to estimate leaf area of O. gratissimum. 250 basil leaves were collected and the linear dimensions (length and width) and real leaf area of each leaf were measured. From these data, the products between length and width, length and length were calculated. Equations were obtained using regression models: linear, linear without intercept, quadratic, cubic, power, and exponential. The best equation was selected based on determination coefficient, Pearson’s correlation coefficient, Willmott’s agreement index and CS index, Akaike information criterion, mean absolute error and root mean square error. All equations proposed using the product between length and width (LW) can be used to predict the leaf area of O. gratissimum. However, the equation LA=0.54*LW1.03 (power model) is the most recommended to estimate the leaf area of this species.","PeriodicalId":21236,"journal":{"name":"Revista Ceres","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135059552","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

Detection of RNA viruses in potato seed-tubers from northern Antioquia (Colombia) 哥伦比亚安蒂奥基亚北部马铃薯种块茎中RNA病毒的检测

Revista Ceres Pub Date : 2023-01-01 DOI: 10.1590/0034-737x202370050013

Andrea García, Susana Giraldo, Mónica Higuita, Rodrigo Hoyos, Mauricio Marín, Pablo Gutiérrez

引用次数: 0

Irrigation Management in the Paricá Seedlings Development in Amazon Region 灌溉管理对亚马逊地区paricanic幼苗发育的影响

Revista Ceres Pub Date : 2023-01-01 DOI: 10.1590/0034-737x202370010002

Wendel Kaian Mendonça Oliveira, J. D. N. Alves, Raimundo Thiago Lima da Silva, L. A. Bezerra, Euzanyr Gomes DA Silva, M. Maggi

引用次数: 0

Sensitivity analysis of the AquaCrop model for wheat crop in Campos Gerais region, Paraná ParanáCampos-Gerais地区小麦作物AquaCrop模型的敏感性分析

Revista Ceres Pub Date : 2023-01-01 DOI: 10.1590/0034-737x202370010004

S. L. K. Rosa, J. L. M. Souza, R. Tsukahara, E. G. Kochinski

引用次数: 0