Bragantia最新文献_第6页

Approaches about the expression of two MADS-box genes in pear during the seasonal leaf bud-dormancy transitional phases in the subtropical climate 亚热带气候下梨叶芽休眠过渡期两个MADS-box基因表达的探讨

IF 1.2 4区农林科学

Bragantia Pub Date : 2022-01-01 DOI: 10.1590/1678-4499.20210211

G. Leivas, Elsa Kuhn Klumb, V. Bianchi, R. R. Yamamoto, Luciano de Amarante, J. F. Pereira, F. Herter, A. Chaves, P. Mello-Farias

{"title":"Approaches about the expression of two MADS-box genes in pear during the seasonal leaf bud-dormancy transitional phases in the subtropical climate","authors":"G. Leivas, Elsa Kuhn Klumb, V. Bianchi, R. R. Yamamoto, Luciano de Amarante, J. F. Pereira, F. Herter, A. Chaves, P. Mello-Farias","doi":"10.1590/1678-4499.20210211","DOIUrl":"https://doi.org/10.1590/1678-4499.20210211","url":null,"abstract":"In the last decades, several biochemical and molecular studies in pear (Pyrus spp.) have revealed processes associated with dormancy establishment and release, leading to the identification of several MADS-box family genes related to bud dormancy regulation. Thus, the aim of this study was to evaluate a preliminary expression pattern of the PpDAM13-1 and PpDAM13-2 MADS-box genes in pear leaf buds (Pyrus pyrifolia Nakai, cultivars Hosui and Nijisseiki; and Pyrus communis L., cultivars Rocha and Santa Maria), grown in the subtropical climate of Southern Brazil. Lateral leaf buds were collected from June to September, and RNA was extracted for evaluation of gene expression by reverse transcription polymerase chain reaction (RT-qPCR). It was found that these two genes decreased the expression as leaf buds are release from dormancy. The Hosui cultivar for both genes and the Nijisseiki cultivar for PpDAM13-2 gene showed peaks of expression in early June, indicating that leaf buds are in a transition dormancy phase. The two European cultivars showed this transition dormancy phase between the end-July and the mid-August. It was concluded that the expression analysis of PpDAM13-1 and PpDAM13-2 genes can be used as a marker to evaluate changes of dormancy phase in pear trees in subtropical climate conditions, and it can be suitable to assist management strategies for overcoming pears’ bud dormancy.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67475511","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

Impact of treated sewage effluent on soil fertility, salinization, and heavy metal content 污水处理对土壤肥力、盐碱化和重金属含量的影响

IF 1.2 4区农林科学

Bragantia Pub Date : 2022-01-01 DOI: 10.1590/1678-4499.20210244

A. M. Barbosa, R. T. Faria, L. Saran, G. O. Santos, G. D. F. Dantas, A. P. Coelho

{"title":"Impact of treated sewage effluent on soil fertility, salinization, and heavy metal content","authors":"A. M. Barbosa, R. T. Faria, L. Saran, G. O. Santos, G. D. F. Dantas, A. P. Coelho","doi":"10.1590/1678-4499.20210244","DOIUrl":"https://doi.org/10.1590/1678-4499.20210244","url":null,"abstract":": A long-term experiment (2013 to 2017) of treated sewage effluent (TSE) levels via fertigation in a humid tropical region was installed in Jaboticabal, state of São Paulo, Southeast of Brazil, to evaluate the impact of TSE on soil fertility and the potential for salinization and heavy metal contamination of an Oxisol. The area was cultivated with Urochloa brizantha under the application of four TSE levels at the irrigation depth (0, 11, 60, and 100% TSE) during the four years of the experiment. The TSE chemical composition was monitored throughout the experimental period. The heavy metal levels and soil fertility were evaluated in the 0-0.10 and 0.10-0.20 m layers at the end of the four years of the experiment. Fertigation using TSE did not increase the concentration of potentially toxic elements (As, Cd, Cu, Hg, Mo, Ni, Pb, Se, and Zn) in the soil due to their low concentration in the effluent. A higher Na concentration was also observed at high TSE levels (60 and 100%). However, the sodium adsorption rate in the TSE was low, generating no potential for soil salinization and sodification. Fertigation with TSE levels increased soil fertility, increasing by more than 10% the P content and base saturation in the soil compared to control. According to the chemical attributes evaluated in the soil and effluent, this long-term study showed that TSE application via fertigation in humid tropical regions on clayey soils cultivated with forage grasses is recommended.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67476318","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: 1

Economic and quality study of purple passion fruit grafted on a fusarium wilt tolerant rootstock 耐枯萎病砧木嫁接紫百香果的经济性和品质研究

IF 1.2 4区农林科学

Bragantia Pub Date : 2022-01-01 DOI: 10.1590/1678-4499.20220055

Camila Lopez, A. Salazar, J. Ocampo, D. P. D. Silva, N. Ceballos

{"title":"Economic and quality study of purple passion fruit grafted on a fusarium wilt tolerant rootstock","authors":"Camila Lopez, A. Salazar, J. Ocampo, D. P. D. Silva, N. Ceballos","doi":"10.1590/1678-4499.20220055","DOIUrl":"https://doi.org/10.1590/1678-4499.20220055","url":null,"abstract":": The aim of this work was to determine the influence of Passiflora maliformis as rootstock on the physical characteristics of fruits, productivity, and profitability of the purple passion fruit. The study was carried out from May 2020 to April 2021, under a 3 × 3 factorial design distributed in blocks with three repetitions. The treatments were represented by three scions of elite accessions of purple passion fruit PutEdu01, TesEdu11 and a commercial scion, and three rootstocks, ungrafted, autografted and P. maliformis . Conventional cleft grafting was used. The fresh fruit mass, the shell weight, the pulp weight, the fruit diameter, the polar diameter of the fruit, the percentage of pulp and skin were evaluated. As economic variables, production costs, income, and their cost benefit ratio were determined. The quality of the fruits derived from the grafted accessions in P. maliformis was within the fresh marketing standards, presenting a pulp yield of more than 50%. The combinations of the purple passion fruit TesEdu11 accessions and the commercial one grafted onto P. maliformis as the elite accession PutEdu01 without grafting were financially attractive because they presented a cost-benefit ratio greater than one at two years after starting the crop.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67478362","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: 1

Associative bacterial diversity of pangolão, a stressresilient tropical grass 热带禾草穿山甲<s:1>的结合力细菌多样性

IF 1.2 4区农林科学

Bragantia Pub Date : 2022-01-01 DOI: 10.1590/1678-4499.20220071

M. Alves, Cybelle Souza Oliveira, Gisely Moreira Vitalino, E. Carvalho, J. Oliveira, G. Fracetto, F. Fracetto, M. A. Lira Junior

{"title":"Associative bacterial diversity of pangolão, a stressresilient tropical grass","authors":"M. Alves, Cybelle Souza Oliveira, Gisely Moreira Vitalino, E. Carvalho, J. Oliveira, G. Fracetto, F. Fracetto, M. A. Lira Junior","doi":"10.1590/1678-4499.20220071","DOIUrl":"https://doi.org/10.1590/1678-4499.20220071","url":null,"abstract":": Some forage species, such as pangolão grass ( Digitaria eriantha Steud. cv. Survenola), are resilient in tropical semiarid regions. A possible reason for this is the presence of endophytic and rhizospheric microorganisms. Thus, this study evaluated the diversity of associative bacteria in pangolão grass. Bacteria associated with the roots, culm, leaves, and rhizospheric soil were isolated and characterized in three municipalities of Pernambuco, Brazil. An initial phenotypic characterization was followed by a genotypic assessment by based repetitive extragenic palindromic-polymerase chain reaction (BOX-PCR) and partial sequencing of the 16S rRNA gene. We obtained 325 phenotypically-characterized isolates grouped into 243 strains with 100% similarity by BOX-PCR. The most diverse sampling environment was Araripina, and all factors affected bacterial diversity. There were 135 groups with 90% similarity, that were represented by a single strain each for sequencing. Among the sequenced strains, 118 showed 96.84–99.9% similarity with previously described strains, whereas 17 could not be identified. The following 18 genera were identified from three phyla, five classes, seven orders, and 13 families: Achromobacter , Agrobacterium , Bacillus , Burkholderia , Curtobacterium , Enterobacter , Herbaspirillum , Kosakonia , Ochrobactrum , Paenibacillus , Pantoea , Priestia , Pseudomonas , Rhizobium , Serratia , Shinella , Stenotrophomonas , and Variovorax . The diversity of endophytic and rhizospheric bacteria may contribute to the resilience of pangolão , as various strains of these genera have been described as plant growth promoters. This is the first evaluation of pangolão bacterial diversity under tropical semiarid conditions. Since several of the genera include strains known to promote plant growth, we propose further research to evaluate this on crops.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67478902","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: 1

Calcium applications on ‘Fuji Suprema’ and ‘Maxi Gala’ apple trees: fruit quality at harvest and after cold storage 在“富士superma”和“Maxi Gala”苹果树上施用钙:收获时和冷藏后的果实质量

IF 1.2 4区农林科学

Bragantia Pub Date : 2022-01-01 DOI: 10.1590/1678-4499.20210063

L. Hahn, Denimar Luiz Suzin, L. Argenta, T. L. Tiecher, F. Thewes, J. M. Moura-Bueno, G. Brunetto

{"title":"Calcium applications on ‘Fuji Suprema’ and ‘Maxi Gala’ apple trees: fruit quality at harvest and after cold storage","authors":"L. Hahn, Denimar Luiz Suzin, L. Argenta, T. L. Tiecher, F. Thewes, J. M. Moura-Bueno, G. Brunetto","doi":"10.1590/1678-4499.20210063","DOIUrl":"https://doi.org/10.1590/1678-4499.20210063","url":null,"abstract":": The aim of this study was to evaluate the effect of new Ca sources sprayed on ‘Fuji Suprema’ and ‘Maxi Gala’ apple trees on nutrient levels in leaves and fruit, as well as on fruit ripening features and quality at harvest time and after cold storage. Experiments were carried out in a commercial orchard planted with ‘Fuji Suprema’ and ‘Maxi Gala’ apple trees in Caçador, Santa Catarina state, Brazil. Application of different Ca sources and untreated trees were evaluated in each experiment. Fruit were harvested at two different ripening stages and analyzed based on the following variables: fruit ripening at harvest time, as well as fruit quality and incidence of physiological disorders after 210-day storage at 1 °C. Calcium applications did not change Ca levels in the leaves and of the whole fruit. Calcium levels in fruit peel increased in cultivars Maxi Gala and Fuji Suprema due to leaf Ca applications. ‘Maxi Gala’ apples recorded higher postharvest incidence of physiological disorders, such as greater loss of fruit firmness than ‘Fuji Suprema’ apples (Due to 1-methylcyclopropene [1-MCP] application on ‘Fuji Suprema’ apples). Calcium applications did not change fruit maturation (starch index and pulp firmness) or apple pulp firmness preservation in both cultivars, although they reduced the incidence of bitter pit disorder in ‘Maxi Gala’ apples. The new sources of Ca tested did not increase Ca contents, nor did they reduced the risk for physiological disorder compared to the standard CaCl 2 treatment that has been commercially used for decades as the main Ca fertilizer.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67474105","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: 1

Physiological potential and antioxidant metabolism during storage of soybean seeds contrasting with phenylpropanoid pathway compounds 大豆种子贮藏过程中生理电位和抗氧化代谢与苯丙素途径化合物的对比

IF 1.2 4区农林科学

Bragantia Pub Date : 2022-01-01 DOI: 10.1590/1678-4499.20210319

Julia Abati, C. Zucareli, Cristian Rafael Brzezinski, L. Moraes, I. O. N. Lopes, L. M. Mertz-Henning, F. C. Krzyzanowski, Fernando Augusto Henning

{"title":"Physiological potential and antioxidant metabolism during storage of soybean seeds contrasting with phenylpropanoid pathway compounds","authors":"Julia Abati, C. Zucareli, Cristian Rafael Brzezinski, L. Moraes, I. O. N. Lopes, L. M. Mertz-Henning, F. C. Krzyzanowski, Fernando Augusto Henning","doi":"10.1590/1678-4499.20210319","DOIUrl":"https://doi.org/10.1590/1678-4499.20210319","url":null,"abstract":": Differences in seed storage tolerance between soybean cultivars have been frequently observed. Thus, identifying compounds found in them that may be related to these differences is necessary to support the selection of cultivars with seeds with better storage potential. Therefore, this study aimed to evaluate changes in viability and vigor of soybean seeds during storage in two environments, relating them to antioxidant activity, production of reactive oxygen species, and metabolites of the phenylpropanoid pathway. The experimental design was completely randomized in a 4 × 5 factorial scheme (storage periods × cultivars). Cultivars with contrasting characteristics of lignin content, seed coat color, and isoflavone content in the seed were used, stored for six months in a cold and dry chamber and an uncontrolled environment. Every two months, viability and vigor, enzymatic activity (superoxide dismutase and catalase), and hydrogen peroxide content were evaluated. Storage in a cold and dry chamber maintains seed viability of cultivars A, C, and D; it is reduced in all cultivars in an uncontrolled environment. Seed vigor is reduced during storage. There is no association between the seeds’ physiological quality and the superoxide dismutase and catalase activities. The increase in the hydrogen peroxide content in the seed coat is an indicator of the reduction in the seed physiological quality when stored in an uncontrolled environment. The difference in deterioration tolerance during storage is associated with the lignin content in the seed coat.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67478055","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: 1

Enzymatic antioxidant defense system and ALA-D enzyme activity in soybean Enlist™ line 大豆Enlist™系酶抗氧化防御系统及ALA-D酶活性

IF 1.2 4区农林科学

Bragantia Pub Date : 2022-01-01 DOI: 10.1590/1678-4499.20220010

Ani Carla Concato, W. A. Tamagno, C. Alves, Nathália Tafarel Sutorillo, A. P. Vanin, L. Vargas, R. Kaizer, L. Galon

{"title":"Enzymatic antioxidant defense system and ALA-D enzyme activity in soybean Enlist™ line","authors":"Ani Carla Concato, W. A. Tamagno, C. Alves, Nathália Tafarel Sutorillo, A. P. Vanin, L. Vargas, R. Kaizer, L. Galon","doi":"10.1590/1678-4499.20220010","DOIUrl":"https://doi.org/10.1590/1678-4499.20220010","url":null,"abstract":": Enlist™ technology confers resistance to 2,4-D herbicides, glyphosate, and ammonium glufosinate for soybeans. However, the application of herbicides to plants can generate stress, even in resistant crops. Thus, here we evaluated whether the application of herbicides in transgenic soybean farms, resistant to these herbicides, adversely affects the activity of antioxidant enzymes and porphobilinogen formation by delta-aminolevulinate dehydratase (ALA-D) activity. At seven days after herbicide application, the aerial part of the plants was collected and used to determine the activity of antioxidant enzymes as catalase, ascorbate peroxidase, and guaiacol peroxidase, such as lipid peroxidation levels and the activity of the ALA-D enzyme. At seven days after herbicide application, the aerial part of plants was collect and used to determine the activity of antioxidant enzymes, such as catalase, ascorbate peroxidase and guaiacol peroxidase, as well as the levels of lipid peroxidation and the activity of the ALA-D enzyme. The activity of important antioxidant enzymes involved in the scavenging of reactive oxygen species (ROS) was increased in the soybean cultivar with the Enlist™ technology, while no severe damage to lipids was detected. However, the activity of ALA-D was inhibited, which could potentially impair the formation of porphobilinogen and decrease photosynthetic efficiency. Thus, these results indicate that herbicides can affect the activity of ROS-scavenging enzymes even in transgenic, herbicide-resistant plants.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67478232","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

Is hormonal analysis a predictive tool for grafting success in tomato? 激素分析是番茄嫁接成功的预测工具吗?

IF 1.2 4区农林科学

Bragantia Pub Date : 2022-01-01 DOI: 10.1590/1678-4499.20220016

R. H. Fernandes, D. Silva, F. T. Delazari, C. E. Vital, E. A. Lopes

{"title":"Is hormonal analysis a predictive tool for grafting success in tomato?","authors":"R. H. Fernandes, D. Silva, F. T. Delazari, C. E. Vital, E. A. Lopes","doi":"10.1590/1678-4499.20220016","DOIUrl":"https://doi.org/10.1590/1678-4499.20220016","url":null,"abstract":": Anatomical, physiological, and biochemical analyses have been performed to predict graft compatibility. We analyzed if the concentrations of auxins, jasmonic acid, gibberellins, 1-aminocyclopropane-1-carboxylic acid, zeatin (cytokinin), salicylic acid, and abscisic acid could be used as predictors of compatibility between the rootstocks FOX1 and FOX4 (resistant to Fusarium wilt) and the scion of cherry tomatoes Sweet Heaven (SH). Self-grafted (SH/SH) and ungrafted SH plants (SH) were used as controls. Hormonal analyses were performed on leaves, at 20 and 70 days after grafting (DAG), and roots, at 20 DAG. No expressive concentrations of auxins, gibberellins, or jasmonic acid were detected. The concentrations of 1-aminocyclopropane-1-carboxylic acid, the immediate precursor of ethylene, and zeatin were altered at 20 DAG, but they stabilized at 70 DAG. Salicylic acid levels were reduced in the leaves of grafted plants at 70 DAG. The concentration of abscisic acid (ABA) in the leaves of SH grafted onto FOX1 was higher than in ungrafted and self-grafted plants at 70 DAG, suggesting some degree of incompatibility between these genotypes. The concentration of ABA in the combination FOX4/SH was similar to that in the self-grafted plants. Abscisic acid might be used as a reference phytohormone to predict graft compatibility among tomato genotypes.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67478238","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

Combining ability and heterotic pattern in relation to F1 performance of tropical and temperate-adapted sweet corn lines 热带和温带甜玉米系配合力及杂种优势格局与F1性状的关系

IF 1.2 4区农林科学

Bragantia Pub Date : 2022-01-01 DOI: 10.1590/1678-4499.20220056

Israel Leite de Souza Neto, A. Figueiredo, R. Uhdre, R. Contreras-Soto, C. Scapim, M. Zanotto

{"title":"Combining ability and heterotic pattern in relation to F1 performance of tropical and temperate-adapted sweet corn lines","authors":"Israel Leite de Souza Neto, A. Figueiredo, R. Uhdre, R. Contreras-Soto, C. Scapim, M. Zanotto","doi":"10.1590/1678-4499.20220056","DOIUrl":"https://doi.org/10.1590/1678-4499.20220056","url":null,"abstract":": The aims of this study were: to assess the genetic relationship of supersweet corn populations; and to establish the heterotic pattern of 49 supersweet ( sh2 ) corn inbreds on F2S5 generation based on molecular marker data and specific combining ability. Forty-nine inbreds were evaluated using 20 SSR molecular markers, which were allocated into heterotic groups according to the discriminant principal component analysis. Twelve inbreds were crossed in a complete diallel scheme. The 81 entries (hybrids developed, parental lines and three commercial checks) were evaluated in a triple partial balanced lattice design (9 × 9) during the growing seasons of 2016/2017 and 2017. The general combining ability (GCA) and specific combining ability (SCA) were estimated. The SCA values were used to set the heterotic patterns of the parental lines as well. Commercial yield without husk (CYWH) and ear length (EL) were more informative to set the heterotic groups. Additive and non-additive effects were important on the genetic control of the evaluated traits. However, for five of the six traits, the non-additive/dominance genetic effects showed to be more important in both environments. In fact, the hybrids developed among tropical by temperate germplasm had better performance than those ones developed within the temperate germplasm itself. SSR based-genetic distance demonstrate to be a reliable predictor as significant correlation was obtained between genetic distance with hybrid performance (for length of ears, ear height and CYWH) and SCA for all observed traits. The non-additive genetic effect that predominantly controlled all traits was the feasible explanation for the good prediction.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67478515","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

Soil metal concentrations after five years of pasture-tosugarcane conversion 牧场转为甘蔗后5年土壤金属浓度

IF 1.2 4区农林科学

Bragantia Pub Date : 2022-01-01 DOI: 10.1590/1678-4499.20210038

Camila Bolfarini Bento, J. Carmo, G. Gabriel, W. Botero, A. Fernandes, L. Martinelli, L. C. Oliveira

{"title":"Soil metal concentrations after five years of pasture-tosugarcane conversion","authors":"Camila Bolfarini Bento, J. Carmo, G. Gabriel, W. Botero, A. Fernandes, L. Martinelli, L. C. Oliveira","doi":"10.1590/1678-4499.20210038","DOIUrl":"https://doi.org/10.1590/1678-4499.20210038","url":null,"abstract":": Extensive pastures are commonly converted to sugarcane areas in Brazil. In soils cultivated with sugarcane, tillage and fertilization are management practices commonly carried out. Soil management practices alter the physical and chemical properties increasing or decreasing metal availability. The purpose of this study was to quantify soil metal concentrations during pasture-to-sugarcane conversion correlating these changes with physical and chemical properties. The results showed that the concentration of metals in soil samples occurred according to the following order Fe > Mn > Cr > Zn > Cu > Pb > Cd. Significant increases in soil metal concentrations due the sugarcane cultivation were observed to Cd and Cu. The soil physical and chemical properties presented correlations with soil metal concentrations. There was a strong relationship on inorganic fertilization to change in soil metal concentrations. The principal component analysis (PCA) explained 55.4% of the total data variance, separating factors in two groups that pointed to an influence of fertilization on metal grouping. Inorganic fertilizer application may input 1.06 g·ha –1 ·year –1 Cd. The Cd concentration ranged from 0.15 to 1.07 mg·kg –1 , representing addictions of 9.54 mg·ha –1 ·year –1 Cd in soil. The metal concentrations observed after five years of pasture-to-sugarcane conversion did not represent environmental risks since the concentrations remained below the Brazilian official determinations.","PeriodicalId":9260,"journal":{"name":"Bragantia","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67473845","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: 1