Revista Cultura Agronômica最新文献

Genetic diversity among colored cotton genotypes to obtain potential parent plants 色棉基因型遗传多样性筛选潜在亲本

Revista Cultura Agronômica Pub Date : 2022-01-05 DOI: 10.32929/2446-8355.2021v30n2p204-215

D. Cardoso, Melissa Cristina de Carvalho Miranda, Izabela Motta Pimentel, Marley Aparecida Souza Leite, Myllena Fernandes Garcia, Vádio Neves Belchior Júnior, Andrezza Santos Venâncio, Vinícius Mendes Parreira Cruz, Arthur Prado Xavier Santos, L. B. De Sousa

{"title":"Genetic diversity among colored cotton genotypes to obtain potential parent plants","authors":"D. Cardoso, Melissa Cristina de Carvalho Miranda, Izabela Motta Pimentel, Marley Aparecida Souza Leite, Myllena Fernandes Garcia, Vádio Neves Belchior Júnior, Andrezza Santos Venâncio, Vinícius Mendes Parreira Cruz, Arthur Prado Xavier Santos, L. B. De Sousa","doi":"10.32929/2446-8355.2021v30n2p204-215","DOIUrl":"https://doi.org/10.32929/2446-8355.2021v30n2p204-215","url":null,"abstract":"The objective of this study was to analyze the genetic diversity among colored cotton fiber genotypes using technological characteristics of the fiber, seed cotton yield and percentage of fiber, to identify potential parents with high performance. The experiment was conducted in the Brazilian city of Uberlândia, Minas Gerais, during the 2016/2017 harvest. Twelve colored fiber genotypes were used in a randomized block design. The characteristics that were evaluated included micronaire, maturation, fiber length, length uniformity, short fiber index, fiber resistance, elongation, seed cotton yield and percentage of fiber. Genetic divergence was estimated using the Mahalanobis generalized matrix with Unweighted Pair Group with Arithmetic Mean (UPGMA) and the Tocher method. The Singh method was used to evaluate the relative contributions of the characteristics in the divergence. In detecting divergence, fiber length and maturation were observed to have contributed the most. In order to obtain segregant populations with greater genetic variability and greater productive potential, hybridizations between UFUJP-17 and UFUJP-16 with commercial cultivars could be promising. Crossing UFUJP-16 with commercial controls would have a higher chance of success of producing superior fiber quality.","PeriodicalId":228155,"journal":{"name":"Revista Cultura Agronômica","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128964586","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: 1

Complementação de nitrogênio em fase reprodutiva da cultura da soja em latossolos do Cerrado 塞拉多氧化土中大豆繁殖阶段的氮补充

Revista Cultura Agronômica Pub Date : 2021-12-23 DOI: 10.32929/2446-8355.2021v30n2p109-122

C. Kappes

引用次数: 0

Effects of planting dates on growth and nutrient accumulation of carrots in the brazilian semi-arid 种植日期对巴西半干旱地区胡萝卜生长和养分积累的影响

Revista Cultura Agronômica Pub Date : 2021-12-23 DOI: 10.32929/2446-8355.2021v30n2p166-177

V. V. Gomes, Leilson Costa Grangeiro, Núbia M. Ferreira, R. Lacerda, A. F. Almeida, Jorge L. A. Silva

{"title":"Effects of planting dates on growth and nutrient accumulation of carrots in the brazilian semi-arid","authors":"V. V. Gomes, Leilson Costa Grangeiro, Núbia M. Ferreira, R. Lacerda, A. F. Almeida, Jorge L. A. Silva","doi":"10.32929/2446-8355.2021v30n2p166-177","DOIUrl":"https://doi.org/10.32929/2446-8355.2021v30n2p166-177","url":null,"abstract":"Fertilization plays an important role on carrot’s yield, root quality, storage, plant growth and on the environment. It was aimed to evaluate the plant growth and macronutrients accumulation of carrot cultivars as a function of two planting dates, under high temperatures in the Brazilian semi-arid. The experiments were carried out in randomized blocks design, with ten treatments and four repetitions. Treatments consisted of ten carrot cultivars sowed in two Planting dates. The characteristics that were evaluated were: plant growth (plant height, number of leaves, plant dry matter accumulation, mean fresh mass of the root) and macronutrient accumulation (N, P, K, Ca and Mg) in plant, leaves and root. Plant’s mean height ranged from 42.53 cm (Melinda) to 49.25 cm (Nativa); the highest plant dry matter was obtained by BRS Planalto (12.36 g) and Kuronan (12.18 g); the mean number of leaves was the lowest in Melinda and Nativa: 8.64 and 7.64 leaves plant. The root’s fresh weight had a significant decrease among the planting dates for the Brasília, Francine and Suprema cultivars. The nutrient accumulation varied accordingly to the planting date and cultivar.","PeriodicalId":228155,"journal":{"name":"Revista Cultura Agronômica","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115673011","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

Revista Cultura Agronômica Pub Date : 2021-12-23 DOI: 10.32929/2446-8355.2021v30n2p178-189

M. L. Paz-Lima, Rafaela Souza Alves Fonseca, Cleberly Evangelista dos Santos, Filipe Beserra da Silva, Nathan Rosa Damasceno, Wesler Luiz Marcelino, Diego De Amorim Campos

{"title":"Similarity between corn hybrids using sanitary and physiological seed parameters","authors":"M. L. Paz-Lima, Rafaela Souza Alves Fonseca, Cleberly Evangelista dos Santos, Filipe Beserra da Silva, Nathan Rosa Damasceno, Wesler Luiz Marcelino, Diego De Amorim Campos","doi":"10.32929/2446-8355.2021v30n2p178-189","DOIUrl":"https://doi.org/10.32929/2446-8355.2021v30n2p178-189","url":null,"abstract":"One of the elements capable of explaining the epidemics of diseases in the fields of corn production is the amount of initial inoculum present in seeds. The objective of this paper was to study the health and physiological quality of maize hybrids grown in the 2019 crop. The experiment was carried out using 22 hybrids represented by: 13K21PW Morgan©, 14K185PW Morgan©, 230 PRO 3 DKB©, 290 PRO 3 DKB© , 3040 VIP3 LG©, 3055 VIP3 LG©, 30F35 Pioneer ©, 310 PRO 3 DKB©, 345 PRO 3 DKB©, 8882 Coded DKB, CBS15C385PW Morgan©, CBS15D089PW Morgan©, CBS15SE137PW Morgan©, Coded x40K205 (3898) Pioneer, K9606 VIP3 KWS©, MG580PW Morgan©, MG652PW Morgan©, SH 7930 PRO 2 Sta Helena©, SH 7990 PRO 2 Sta Helena©, SX5885 VIP3 Syngenta©, SX71715 VIP3 Syngenta© and SX8934 VIP3 Syngenta© that were grown in the municipality of Ipameri, GO. Analyzed the percentage of primary root emission (ERP),% of shoot emission (EPA),% of microorganism incidence, % of fungus genera (% GF). Sixteen fungi were detected representing the microflora detected in the seeds of the evaluated hybrids recognized as Penicillium sp., Aspergillus sp., Curvularia sp., Fusarium verticillioides, Gliomastix sp., Cladosporium sp., Gliocladium sp., Bacillus sp., Geotrichum sp. , Trichoderma sp., Mucor sp., Stenocarpela maydis, Pythium sp., Chaetomium sp., Sporotrix sp. and Scopulariopsis sp. The multivariate analysis jointed the cultivars with highest physiological activity represented by SX 8934 Vip3 SYN®, SX 71715 Vip 3®, 3040 Vip3 LG®, SHS 7990 PRO2, SX 5885 Vip3, MG 652 PW®, K9606 Vip3®, DKB 345 PRO3. The lowest incidence of microorganism was in hybrids DKB 345 PRO3 and 8882 cod.","PeriodicalId":228155,"journal":{"name":"Revista Cultura Agronômica","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114320150","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

Fertilizer concentration and fertigation frequency: effects on electric conductivity and ions concentration in the soil solution 肥料浓度和施肥频率:对土壤溶液电导率和离子浓度的影响

Revista Cultura Agronômica Pub Date : 2021-12-23 DOI: 10.32929/2446-8355.2021v30n2p136-148

B. L. D. S. Pereira, E. F. Coelho, M. Campos, Laina Andrade Queiroz, Carla Caroline Damasceno Bras, Z. Gonçalves, B. R. Oliveira

{"title":"Fertilizer concentration and fertigation frequency: effects on electric conductivity and ions concentration in the soil solution","authors":"B. L. D. S. Pereira, E. F. Coelho, M. Campos, Laina Andrade Queiroz, Carla Caroline Damasceno Bras, Z. Gonçalves, B. R. Oliveira","doi":"10.32929/2446-8355.2021v30n2p136-148","DOIUrl":"https://doi.org/10.32929/2446-8355.2021v30n2p136-148","url":null,"abstract":"Fertirrigation allows total control of the amount of applied fertilizers to the soil as a function of crop demand. Fertigation relies on monitoring of soil ions to obtain the sustainability of soil chemical conditions. The continuous evaluation of ions in the soil solution also contributes to the estimation of the cycling rate of chemical elements and nutrient leaching in the field. The objective of this work was (i) to evaluate nitrate, potassium, sodium and electrical conductivity in the soil solution submitted to different concentrations of injection solution and fertigation frequency during one cycle of the \"Grande Naine\" banana in a non-cohesive Yellow Latosol and (ii) to evaluate the effects of concentration and fertigation frequency on yields of banana crop. The experiment was carried out according to a randomized block design with six treatments and four replications in a 3 x 2 factorial scheme with three concentrations of the injection solution (3, 10 and 15 g L-1) x two fertigation frequencies (3 and 7 days). The treatments influenced the values of the ion concentration in the soil solution in the soil profile corresponding to the depths of 0-0.30 e 0.30-0.60 m. The concentration of the injection solution and the interaction frequency x concentration influenced the electrical conductivity and nitrate concentration of the soil solution. There was no significant effect of the injection solution and fertigation frequency on production variables.","PeriodicalId":228155,"journal":{"name":"Revista Cultura Agronômica","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122273642","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