Revista Caatinga最新文献

Water regimes on the development of accessions of the Manihot genus 马尼奥特属植物生长发育的水分状况

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-09-01 DOI: 10.1590/1983-21252023v36n323rc

Alysson M. Sobreira, W. L. Simões, G. Nunes, L. M. D. Silveira, R. P. Antônio

{"title":"Water regimes on the development of accessions of the Manihot genus","authors":"Alysson M. Sobreira, W. L. Simões, G. Nunes, L. M. D. Silveira, R. P. Antônio","doi":"10.1590/1983-21252023v36n323rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n323rc","url":null,"abstract":"ABSTRACT The objective of this work was to select water deficittolerant accessions of the genus Manihot, through morphological characters under different water regimes. The experiment was conducted in a randomized block design, using a split-plot arrangement with plots consisting of tree water regimes (simulated rainfall and water depth of 100 and 20% crop evapotranspiration (ETc)), and subplots consisting of eight accessions of the genus Manihot (Gema-de-Ovo and Engana-Ladrão from the species M. esculenta Crantz, and BGMS-115, BGMS-110, BGMS-102, BGMS- 79, BGMS-24, and BGMS-48 from Manihot sp.). The accessions were evaluated considering two crop cycles: the first had 120 and 60 days from the application of the treatments. Plant height, stem diameter, number of leaves, leaf lobe length and shoot dry mass production were evaluated. For each cropping cycle, a split-plot analysis of variance was performed. The highest genotypic means were expressed by the accessions BGMS-115, BGMS-102, BGMS- 79 and BGMS-24 for most of the analyzed variables, regardless of the cultivation cycle. For the characteristic shoot dry mass production, accessions BGMS-102 and BGMS-79 showed the best performances under conditions of limited water regime (20% ETc), regardless of the cropping cycle. Accession BGMS-102 was also grouped in the group with the highest genotypic means, for this trait, in treatments with rain simulation and 100% ETc, in the first cycle, demonstrating that, under stress conditions, this accession is an option to tolerate low water precipitation and responds well when higher precipitation occurs.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45841953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Canonical correlations in phenological, morphological, production and tassel traits of maize 玉米表型、形态、产量和穗部性状的典型相关性

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-09-01 DOI: 10.1590/1983-21252023v36n309rc

D. L. Silveira, A. Cargnelutti Filho, I. Neu, V. Bubans, B. F. Osmari, L.F. Osmari

{"title":"Canonical correlations in phenological, morphological, production and tassel traits of maize","authors":"D. L. Silveira, A. Cargnelutti Filho, I. Neu, V. Bubans, B. F. Osmari, L.F. Osmari","doi":"10.1590/1983-21252023v36n309rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n309rc","url":null,"abstract":"ABSTRACT The objective of this study was to check whether there is linear dependence between phenological, morphological and production traits and tassel traits in maize genotypes. Seven experiments were conducted with 16 maize genotypes, in a randomized block design, with three replicates. Four groups of traits were evaluated: phenological (two), morphological (three), production (four) and tassel (11). Joint analysis of variance and F test at 5% significance level were performed. The matrix of phenotypic correlation coefficients between the traits was estimated and multicollinearity was diagnosed in each group of traits. Associations between the groups of traits were checked by canonical correlation analysis. There is linear dependence between phenological, morphological and production traits and tassel traits in maize genotypes. Phenological (number of days from sowing to 50% of male flowering and number of days from sowing to 50% of female flowering), morphological (plant height and spike height) and production (number of spikes and grain yield) traits are positively associated with tassel traits (tassel branch number and tassel dry matter). Tassel branch number and tassel dry matter can be used for indirect selection of maize plants.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48687037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Five cycles of intrapopulation recurrent selection in half-sib progenies of fresh corn 鲜玉米半兄弟后代的5个群体内循环选择

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-09-01 DOI: 10.1590/1983-21252023v36n324rc

P. H. Cintra, C. L. P. Resende, L. F. Damaso, D. D. C. Carvalho, F. D. C. Silva, F. Rodrigues

{"title":"Five cycles of intrapopulation recurrent selection in half-sib progenies of fresh corn","authors":"P. H. Cintra, C. L. P. Resende, L. F. Damaso, D. D. C. Carvalho, F. D. C. Silva, F. Rodrigues","doi":"10.1590/1983-21252023v36n324rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n324rc","url":null,"abstract":"ABSTRACT Fresh corn is a highly appreciated vegetable in Brazil; this crop has high added value and profitability when compared to dry corn. Despite the consumer market demand for quality, cultivars are not launched every crop season and there is a small number of cultivars available to growers. This denotes a need for breeding programs focused on generating information and genotypes that can occupy this market niche. The objective of this work was to evaluate the progress of five cycles of intrapopulation recurrent selection in half-sib progenies of fresh corn, in the southwest region of Goiás. A randomized block experimental design was used, with evaluation of 64 progenies of corn half-sib progenies and selection intensity of 30% per cycle, with three replications, in the 2011-2012, 2013-2014, 2015-2016, 2017-2018, and 2020-2021 summer crop seasons. The half-sib progenies of fresh corn exhibited genetic variability through intrapopulation recurrent selection in the different selection cycles, which is still promising for further selections after five cycles, with evaluation of 64 progenies per cycle. The base population from crossings between hybrids for tropical and temperate climates showed to be promising for increasing the genetic base of fresh corn populations, with satisfactory gains over the five cycles, presenting mean heritability between the cycles of approximately 78.9% for relative chlorophyll index, 62.2% for plant height, 75.1% for ear insertion height, 70% for ear diameter, 56.6% for ear length, 71.4% for unhusked ear yield, and 71% for marketable ear yield.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43181870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphometry and yield of ‘Gigante’ forage cactus pear under irrigation and different planting densities 灌溉和不同种植密度条件下“Gigante”饲草仙人掌梨的形态测定和产量

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-09-01 DOI: 10.1590/1983-21252023v36n321rc

V. A. Fonseca, S. Donato, M. R. D. Santos, J. A. Silva, Carlos M. Oliveira, Renato da S. Batista

{"title":"Morphometry and yield of ‘Gigante’ forage cactus pear under irrigation and different planting densities","authors":"V. A. Fonseca, S. Donato, M. R. D. Santos, J. A. Silva, Carlos M. Oliveira, Renato da S. Batista","doi":"10.1590/1983-21252023v36n321rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n321rc","url":null,"abstract":"ABSTRACT Growing forage cactus pear in semi-arid regions is an alternative when facing current climate changes, and improving its cropping systems is critical to increasing its yields. The objective was to evaluate morphometric characteristics and yield of ‘Gigante’ cactus pear under complementary irrigation with saline water and different planting densities. The research was carried out in the semiarid region of Bahia during the period from September 2017 to October 2019. A randomized block design was used with treatments arranged in split-split plots. Two irrigation intervals (7 and 14 days) were assigned to plots, four planting densities (20,000; 40,000; 60,000 and 80,000 plants per hectare) to subplots, and four irrigation levels (0, 11, 22 and 33% of ETo) to sub-subplots. High-salinity water (2.91 dS m-1), classified as C4S1, did not limit the growth and yield of ‘Gigante’ forage cactus pear for two crop cycles. Fresh matter and dry matter yields, fresh matter-based water use efficiency and dry matter-based water use efficiency were highest at planting densities of 61,465 and 67,786 plants ha-1, and 61,848 and 69,707 plants ha-1, respectively. The use of 33% ETo irrigation level increased morphometric characteristics, fresh matter yield in the first and second cycles, and dry matter yield in the first cycle. Applying increasing irrigation levels promotes reductions in fresh matterand dry matter-based water use efficiency.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43406003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimate of carbon stock in the soil via diffuse reflectance spectroscopy (vis/nir) air and orbital remote sensing 通过漫反射光谱(可见光/近红外)空气和轨道遥感估算土壤中的碳储量

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-09-01 DOI: 10.1590/1983-21252023v36n320rc

Ohana C. O. Faria, G. N. Torres, L. A. D. L. D. Raimo, E. Couto

{"title":"Estimate of carbon stock in the soil via diffuse reflectance spectroscopy (vis/nir) air and orbital remote sensing","authors":"Ohana C. O. Faria, G. N. Torres, L. A. D. L. D. Raimo, E. Couto","doi":"10.1590/1983-21252023v36n320rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n320rc","url":null,"abstract":"ABSTRACT Current procedures for determining soil organic carbon (SOC) content are costly, time-consuming, and generate polluting chemical waste. Therefore, developing new protocols using aerial and orbital remote sensing and diffuse reflectance spectroscopy (DRS) for digitally mapping the stock of soil organic carbon (CS) is essential for promoting actions of research and monitoring SOC in Brazilian soils. Given this, three areas of commercial plots in the region of the Middle North of Mato Grosso were studied, where sampling was carried out for the determination of SOC in the layer from 0 to 30 cm, evaluated by the dry combustion method and estimated through DRS in the visible to near -infrared region - Vis-NIR-SWIR/350-2500 nm). To obtain the images by aerial remote sensing, the Carcará II® Unmanned Aerial Vehicle was used, with a MicaSense® multispectral camera (RGB + NIR + RedEdge) attached. The orbital sensors used were the Sentinel 2® and Planet® satellites. This study showed that soil carbon stock values could be predicted using different modeling approaches based on field and laboratory spectral measurements. Predictive models to estimate SOC can be established using remote and near sensing, thus allowing a better understanding of spatial patterns of SOC in crop fields.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44357295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Grain yield performance of corn in different plant arrangements 不同种植方式下玉米的产量表现

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-09-01 DOI: 10.1590/1983-21252023v36n306rc

Paulo H. Cazarim, G. D. Shimizu, L. H. Fantin, M. D. A. Silva, C. Zucareli

{"title":"Grain yield performance of corn in different plant arrangements","authors":"Paulo H. Cazarim, G. D. Shimizu, L. H. Fantin, M. D. A. Silva, C. Zucareli","doi":"10.1590/1983-21252023v36n306rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n306rc","url":null,"abstract":"ABSTRACT Sowing arrangements composed of double-row spacing in corn can favor the interception of solar radiation by the canopy and, consequently, the yield performance of the crop. However, it is possible that the microclimate provided by this spacing, especially at high plant densities, favors the occurrence of leaf diseases. Thus, the objective was to evaluate the effect of 0.45 m and double-row spacing arrangements on the severity of foliar diseases and yield performance of corn grown in the first and second-crop seasons. Two independent experiments were conducted (with and without the fungicide fluxapyroxad + pyraclostrobin) in the first and second-crop seasons in a randomized block design arranged in a split-plot scheme with four repetitions. The plots consisted of spacing (0.45 m) and double-row (0.30 × 0.60 m), and the subplots, four plant densities (59,200, 74,000, 81,400, and 96,200 plants ha-1). In the plant density factor, in the second-crop season, there is a decrease in the severity of white spot as plant density is increased. Also, for the plant density factor, in the first-crop season, there may be a significant yield increase as the plant density is increased.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46697334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of remating on sterile insect technique in Ceratitis capitata (Diptera: Tephritidae): a molecular approach 残留对头角绦虫(双翅目:绦虫科)不育昆虫技术的影响:分子分析

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-09-01 DOI: 10.1590/1983-21252023v36n308rc

Vilmara P. Barboza, B. Paranhos, J. C. Silva Junior

{"title":"Influence of remating on sterile insect technique in Ceratitis capitata (Diptera: Tephritidae): a molecular approach","authors":"Vilmara P. Barboza, B. Paranhos, J. C. Silva Junior","doi":"10.1590/1983-21252023v36n308rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n308rc","url":null,"abstract":"ABSTRACT The Mediterranean fruit fly, Ceratitis capitata (Diptera: Tephritidae), is one of the most harmful species to world horticulture, thus requiring suppression or eradication programs. The sterile insect technique is widely used for autocidal control of nuisance insects because it neither releases exotic agents into the environment nor introduces new genetic material into existing populations. In 2005, the Moscamed Brasil biofactory imported the tsl Vienna 8 C. capitata strain from the International Atomic Energy Agency (IAEA); this action required genetic testing of the strain’s biological characteristics. The objective of this study was to discriminate males of wild populations from tsl Vienna 8 using molecular markers, and to conclude which male line dominated in a remating condition. Four crosses, each using 100 males and 100 females, were performed: wild female × wild male; wild female × tsl Vienna 8 male; wild female × wild male, followed by remating with tsl Vienna 8 males after 48 h, and wild female × tsl Vienna 8 male, followed by remating with wild males after 48 h. The results showed that the tsl Vienna 8 strain is compatible with wild females from the São Francisco Valley region and that these males can successfully transfer their sperm to the female spermathecae. Regarding remating, the sperm of the second male dominated over that of the first one. Based on these findings, the sterile insect technique success may be reduced, since the progeny of a female that remates with a wild male could be viable.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46144505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Resistance of potato genotypes to late blight 马铃薯基因型对晚疫病的抗性

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-09-01 DOI: 10.1590/1983-21252023v36n311rc

Helena N. Oxley, C. Gomes, A. Pereira, F. Q. Azevedo

{"title":"Resistance of potato genotypes to late blight","authors":"Helena N. Oxley, C. Gomes, A. Pereira, F. Q. Azevedo","doi":"10.1590/1983-21252023v36n311rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n311rc","url":null,"abstract":"ABSTRACT Late blight (Phytophthora infestans) is a serious problem in potato crops in southern Brazil due to favorable climatic conditions for the development of the pathogen and the lack of resistant cultivars available in the market. Thus, this study aimed to evaluate the reaction of eight cultivars (Asterix, Catucha, BRS Clara, BRS F63 - Camila, Cristal, BRS F183 - Potira, Markies, and BRS Pérola) and five advanced clones (F05-11-03, F21-07-09, Odone 80-02, F50-08-01, and F63-10-07) to late bight under field conditions. The Agata and the clone CIP392.617-54 were used as susceptible and resistant controls, respectively. The experiments were conducted in the municipality of Pelotas, RS, in the autumn season of 2018 and 2019. Sixty days after planting, the plants were inoculated with the pathogen; and, after one week, the genotypes were evaluated for disease severity and the area under the disease progress curve. ‘Catucha’ was classified as resistant to moderately resistant to P. infestans; ‘Cristal,’ F50-08-01 and ‘BRS Perola’, moderately susceptible to resistant; and ‘BRS F63’ - Camila, F63-10-07, F05-11-03, Asterix, F21-07-09, BRS F183 - Potira, and Odone 80-02, moderately susceptible to susceptible. BRS Clara and Markies showed the greatest variations in both experiments, showing to be susceptible in the autumn of 2018 experiment and moderately resistant in the autumn of 2019 experiment.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45355452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wastewater and substrates on the growth of Anadenanthera colubrina L. seedlings 废水和基质对菊花幼苗生长的影响

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-09-01 DOI: 10.1590/1983-21252023v36n314rc

Nelson J. V. Macumbi, N. S. Dias, R. F. D. Brito, M. Ferreira Neto, Jucicléia S. da Silva, R. B. Lira, H. D. S. Lemos Neto

{"title":"Wastewater and substrates on the growth of Anadenanthera colubrina L. seedlings","authors":"Nelson J. V. Macumbi, N. S. Dias, R. F. D. Brito, M. Ferreira Neto, Jucicléia S. da Silva, R. B. Lira, H. D. S. Lemos Neto","doi":"10.1590/1983-21252023v36n314rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n314rc","url":null,"abstract":"ABSTRACT The production of seedlings of forest species for reforestation of biomes is a practice that restores the conditions of the environment, but water and substrates that favor the growth of seedlings are required. However, in the semi-arid region, water is a limiting factor, requiring the use of alternative sources such as treated domestic sewage. In this context, the objective was to evaluate the growth of Anadenanthera colubrina L. seedlings produced in substrates (soil + bovine manure and soil + coconut fiber) fertilized with treated domestic sewage effluent diluted in public-supply water in proportions (100, 75, 50 and 25% of domestic effluent) and using water from the supply network as a control. The treatments were arranged in a completely randomized design, in a split-plot with three replicates. The treated domestic effluent (TDE) used in the experiment came from the domestic sewage treatment plant of the decanter-digester type of the Projeto de Assentamento Milagre Apodi/RN. The study was conducted in a seedling production nursery at UFERSA, with growth and vigor evaluations at 30, 60, 90 and 120 days after transplanting. The production of seedlings fertigated with domestic effluent caused differences in all growth variables, with improvement in phytomass production. Seedlings fertigated with a dilution of 50% TDE and 50% water supply showed better results when produced with substrate composed of soil and coconut fiber. The seedlings showed good quality, and those cultivated with 50% and 75% of wastewater showed better quality after 120 days of cultivation.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46435330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antifungal action of essential oils against Fusarium rot in melon 精油对甜瓜枯萎病的抗真菌作用

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-09-01 DOI: 10.1590/1983-21252023v36n301rc

A. E. D. Sousa, Rafaela P. Melo, P. R. Gagliardi, G. Nunes, A. H. Oster, E. Silva

{"title":"Antifungal action of essential oils against Fusarium rot in melon","authors":"A. E. D. Sousa, Rafaela P. Melo, P. R. Gagliardi, G. Nunes, A. H. Oster, E. Silva","doi":"10.1590/1983-21252023v36n301rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n301rc","url":null,"abstract":"ABSTRACT The objective of this work was to determine the composition and evaluate in vitro and in vivo effects of essential oils (Lippia sidoides Cham., Ocimum gratissimum L., Cymbopogon citratus Stapf., Ocimum selloi Benth., Citrus sinensis L., Ocimum micranthum Willd., Ocimum sp., and Piper aduncum L.) on the control of Fusarium rot in melon fruits, caused by the fungus Fusarium pallidoroseum. The essential oils were obtained by hydrodistillation and their chemical composition was determined by GCMS and GC-FID. The effect of each essential oil (concentrations of 0, 500, 1500, and 3000µL L-1) on the fungal mycelial growth was evaluated in in vitro experiment. The effective concentration that inhibited 50% of mycelial growth (EC50) was determined through the probit method; mycelial growth index (MGI) was also calculated. The essential oils with higher potential for inhibiting mycelial growth of F. pallidoroseum were evaluated for their inhibitory effect on the fungus spore germination in in vitro and in vivo experiments using melon fruits (variety Galia). Chemical composition analysis of essential oils enabled the identification of varying amounts of chemical compounds, with predominance of monoterpenes. The essential oils of L. sidoides, O. gratissimum, C. citratus, and O. micranthum presented higher inhibiting effects on F. pallidoroseum mycelial growth and spore germination, therefore, they are promising raw materials for the development of commercial fungicides, mainly for controlling postharvest rot caused by F. pallidoroseum.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48197448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0