Revista Caatinga最新文献_第4页

Growth regulators alter the development and metabolism of lemon balm seedlings cultured in vitro 生长调节剂改变体外培养柠檬香蜂草幼苗的发育和代谢

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n214rc

Leila I. da Silva, H. M. Magalhães

{"title":"Growth regulators alter the development and metabolism of lemon balm seedlings cultured in vitro","authors":"Leila I. da Silva, H. M. Magalhães","doi":"10.1590/1983-21252023v36n214rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n214rc","url":null,"abstract":"ABSTRACT Melissa officinalis L., popularly known as lemon balm, is an aromatic plant widely used in medicine, cosmetics, and pharmaceutical industries for its essential oil rich in phenylpropanoids, terpenes, and phenolics. This study aimed to assess the effect of growth regulators on the development and physiological and biochemical metabolism of M. officinalis cultured in vitro. Seeds were inoculated in Murashige and Skoog medium and added with the regulators 6-benzylaminopurine (BAP) and 1-naphthaleneacetic acid (NAA) according to six different treatments. After 90 days of culture, plants were evaluated for growth and biochemical and physiological parameters (flavonoids, anthocyanins, and chlorophyll). The balance between regulators interfered with plant growth, which increased in the presence of 0.2 mg L-1 BAP. In this treatment, the plants had greater growth with more leaves, and the biomass production of shoots and roots was higher than the control. Growth regulators did not influence nitrogen assimilation or flavonoid production; however, total chlorophyll and anthocyanin indexes were enhanced by treatment with BAP at concentrations ranging from 0.2 to 0.5 mg L-1. Auxin treatment did not improve root production or growth but favored callus formation when combined with 0.5–3.0 mg L-1 BAP. The results indicate that high BAP concentrations (above 1.0 mg L-1) should not be used in in vitro production of lemon balm.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47463630","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: 2

Essential oils in the management of Alternaria alternata f. sp. citri in ‘Dancy’ tangerine fruits 精油在治理‘丹西’蜜橘中的Alternaria alternata f.sp.citri中的作用

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n206rc

Mirelly M. Porcino, Valdeir de S. Oliveira, H. F. Da Silva, Mileny dos S. de Souza, L. C. Do Nascimento

{"title":"Essential oils in the management of Alternaria alternata f. sp. citri in ‘Dancy’ tangerine fruits","authors":"Mirelly M. Porcino, Valdeir de S. Oliveira, H. F. Da Silva, Mileny dos S. de Souza, L. C. Do Nascimento","doi":"10.1590/1983-21252023v36n206rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n206rc","url":null,"abstract":"ABSTRACT Tangerines and their hybrids are affected by economically essential diseases. The Alternaria brown spot (Alternaria alternata f. sp. citri) deserves to be highlighted, as it is present in all tangerine production areas. This study aimed to determine the effect of essential oils on A. alternata f. sp. citri. The experiments were carried out in the Laboratories of Phytopathology and Biology and Technology of Post-Harvest of the Federal University of Paraíba, Areia, PB. Three pathogen isolates were used, and ten essential oils from grape, sunflower, eucalyptus, ginger, copaiba, mint, fennel, citronella, clove, and linseed at a concentration of 1%, diluted in potato dextrose agar for in vitro tests. The oils were diluted in distilled water for the fruit test, and the fruits were immersed in the treatments for 5 min. In addition, the fungicide Thiabendazole (400 mL/100L) and sterile distilled water were used as the control treatments. The fruits were inoculated with a conidia suspension of the pathogen (105 conidia/mL). Mycelial Growth Rate Index, colony diameter, spore production and dimensions, fruit disease severity, and enzymatic activity were evaluated. A completely randomized design was used, with 12 treatments and four replications in vivo. The results indicate that the essential oils of mint, eucalyptus, fennel, and citronella were efficient in the in vitro control of the pathogen, ultimately inhibiting the growth of fungal colonies. Eucalyptus oil efficiently managed A. alternata f. sp. citri on ‘Dancy’ tangerine fruits. Essential oils did not influence the enzymatic activity of the fruits.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43764926","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

Genetic parameters in melon sub-accessions from traditional agriculture 传统农业甜瓜亚种质的遗传参数分析

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n209rc

Clisneide C. de Amorim, M. A. DE QUEIRÓZ, Bárbara L. R. Barbosa, Milena dos S. Coutinho, I. S. L. Lima Neto

{"title":"Genetic parameters in melon sub-accessions from traditional agriculture","authors":"Clisneide C. de Amorim, M. A. DE QUEIRÓZ, Bárbara L. R. Barbosa, Milena dos S. Coutinho, I. S. L. Lima Neto","doi":"10.1590/1983-21252023v36n209rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n209rc","url":null,"abstract":"ABSTRACT Family farming in Brazil holds a high diversity of melon germplasm, composing an important source of alleles for breeding programs. Thus, the objective of this study was to estimate genetic parameters and select genotypes from a population of melon sub-accessions from different botanical varieties grown by family farmers, based on morphological parameters. Two experiments were conducted, one in 2019 and another in 2020, in a complete randomized block design, with three replications and five plants per plot, using 27 melon sub-accessions (generation S2) from family farmers, and a commercial variety. Nine quantitative descriptors were evaluated. Assumptions of ANOVA were tested, followed by individual and joint analyses of variance. Significant differences were found among sub-accessions for all descriptors evaluated, with heritabilities higher than 83% and significant genotype-environment interactions for 88.8% of the characteristics evaluated. Thus, genetic variability was found among sub-accessions, with predominance of genetic effects over environmental effects, denoting the possibility to obtain genetic gains by the improvement of several characteristics of agronomic interest. The sub-accessions BGMEL66.0, BGMEL111.0, and BGMEL112.0 are recommended for inclusion in breeding programs focused on obtaining good prolificacy and small fruits with high soluble solid contents. BGMEL sub-accessions (108.3 and 108.5) can generate progenies with high prolificacy, and sub-accessions of the variety momordica can be used for generation of progenies focused on shortening the crop cycle and increasing fruit size.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47280857","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

Genotype x environment interaction and stability in landraces of cowpea under dryland conditions 旱地条件下豇豆地方品种的基因型x环境相互作用及稳定性

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n211rc

Rubens R. Rolim, Naysa F. F. do Nascimento, M. F. Nascimento, H. F. D. De Araujo

{"title":"Genotype x environment interaction and stability in landraces of cowpea under dryland conditions","authors":"Rubens R. Rolim, Naysa F. F. do Nascimento, M. F. Nascimento, H. F. D. De Araujo","doi":"10.1590/1983-21252023v36n211rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n211rc","url":null,"abstract":"ABSTRACT Cowpea (Vigna unguiculata (L.) Walp.) is an excellent crop for research in semi-arid regions, due to its tolerance to high temperatures and water deficit, with satisfactory yields in rain-fed cultivation. The objective this work was to evaluate the genotype x environment (G × E) interaction, adaptability and stability of cowpea landraces used in the Cariri, Paraíba, in the semiarid region of Northeast Brazil. The experiment was carried out under rain-fed conditions in two locations of this region. For all traits evaluated, the G × E interaction was simple, which means that the evaluated landraces can be recommended for the different environments tested. The results also suggest that phenotypic selection can be efficient to enhance the yield of cowpea landraces and, therefore, can be practiced by the farmers themselves. The most advantageous landraces were ranked with good stability (qi <5%). Although the performance standards between the cowpea landraces were similar in the different environments, the best values were obtained on the farm with the best environmental conservation history and with higher precipitation. Therefore, the integration between the yield of cowpea landraces, environmental conservation in agricultural landscapes, and strategic planning that considers possible variations in local precipitation is essential in models of sustainable agricultural development in semi-arid zones of Northeast Brazil.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42139339","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

Effects of silage production with different mechanized sets on soil physical attributes 不同机械化装置青贮生产对土壤物理属性的影响

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n222rc

S. P. Jasper, G. G. Zimmermann, L. L. Kmiecik, D. Savi

{"title":"Effects of silage production with different mechanized sets on soil physical attributes","authors":"S. P. Jasper, G. G. Zimmermann, L. L. Kmiecik, D. Savi","doi":"10.1590/1983-21252023v36n222rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n222rc","url":null,"abstract":"ABSTRACT The evaluation of the physical attributes of the soil in cultivated areas is essential for understanding the impacts of agricultural operations, especially those with intense machine traffic. Therefore, the present study aimed to evaluate the physical attributes of the soil submitted to silage with different mechanized sets. A randomized block design was adopted with three treatments: forage harvester with a one-row cutting platform (T1), forage harvester with a three-row cutting platform (T2), and T2 with a forage harvester with a conveyor wagon. Before ensiling and 24 hours after the operation, intact samples of soil classified as Latossolo Vermelhoamarelo álico, intact, were collected to determine the micro, macro, and total porosity, soil density, and volumetric soil water content according to the methodology proposed by the Brazilian Agricultural Research Corporation (Embrapa). After ensiling, the resistance to soil penetration was measured with an electronic manual penetrometer, before and after ensiling, at the A horizon of the soil in the layers of 0.0-0.2 m and 0.2-0.4 m. We analyzed the data by establishing the confidence interval using the t-test at 10% probability. The sets reduce the macroporosity and total porosity of the soil in the 0.0-0.2 m and 0.2-0.4 m soil layers. T2 promoted greater total density in the 0.0–0.2 m layer. The silage increased the resistance to soil penetration to a depth of 0.15 m.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44573055","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

Strategies for the management of irrigation with saline water and nitrogen fertilization in millet crop 谷子作物盐碱水和氮肥灌溉管理策略

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n219rc

Erickson G. de Có, G. G. De Sousa, S. P. Gomes, M. Freire, Fred D. B. da Silva

{"title":"Strategies for the management of irrigation with saline water and nitrogen fertilization in millet crop","authors":"Erickson G. de Có, G. G. De Sousa, S. P. Gomes, M. Freire, Fred D. B. da Silva","doi":"10.1590/1983-21252023v36n219rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n219rc","url":null,"abstract":"ABSTRACT It is believed that nitrogen fertilization will attenuate the salt stress on pearl millet plants. Thus, the objective was to evaluate the agronomic performance of the millet crop under different saline water irrigation strategies and nitrogen fertilization. The experimental design adopted was completely randomized (CRD), in a 4 x 2 factorial scheme, with 4 replicates, with the first factor being four irrigation strategies: S1 = low-salinity water (W1) = 0.3 dS m-1 throughout the cycle; S2 = saline water (W2) = 4.0 dS m-1 from 30 days after sowing - DAS; S3 = W2 from 45 DAS; and S4 = W2 from 65 DAS; and the second factor being two nitrogen doses (60 and 120 kg ha-1 of N). At the end of the experiment, the following variables were evaluated: photosynthesis, transpiration, stomatal conductance, instantaneous water use efficiency, internal CO2 concentration, leaf temperature, plant height, stem diameter, root length, panicle length, leaf dry mass, stem dry mass and root dry mass. Fertilization with 60 and 120 kg ha-1 promotes greater photosynthesis, transpiration, stomatal conductance and internal CO2 concentration in millet plants under the strategies S1, S2 and S3. The strategies S1 and S4 were more efficient to increase the efficient use of water and reduce leaf temperature.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48939496","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

Effect of drying conditions on physiological quality of cowpea seeds of the cultivar brs-tumucumaque 干燥条件对豇豆种子生理品质的影响

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n203rc

M. O. Assis, E. F. Araújo, F. C. L. de Freitas, L. D. da Silva, R. F. Araujo

{"title":"Effect of drying conditions on physiological quality of cowpea seeds of the cultivar brs-tumucumaque","authors":"M. O. Assis, E. F. Araújo, F. C. L. de Freitas, L. D. da Silva, R. F. Araujo","doi":"10.1590/1983-21252023v36n203rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n203rc","url":null,"abstract":"ABSTRACT Seed drying has many advantages, but it can cause irreversible damages, compromising the physiological quality of seeds, especially when they present high water contents. The objective of this work was to evaluate the effect of drying conditions (inside and outside the pod) on the physiological quality of cowpea seeds of the cultivar BRS-Tumucumaque before and after storage. A completely randomized experimental design with four replications was used, in a split-plot arrangement. The plots consisted of combinations of harvest seasons (1, 2, 3, 4, and 5) and artificial seed drying conditions (inside and outside the pod); and the subplots consisted of storage times (0 and 6 months). The seed water contents were determined and the seeds were evaluated for germination, first germination count, emergence, emergence index, accelerated aging, and electrical conductivity. Higher physiological quality was found for dried seeds inside the pods, which was more evident in seasons 1 and 2, in both storage times. In the other seasons, the drying conditions had no effect on seed germination and vigor at the beginning of storage. The dried seeds inside the pods showed greater vigor after six months of storage. Drying seeds inside the pods favors the maintenance of physiological quality and allows artificial drying of cowpea seeds of the cultivar BRS-Tumucumaque with water content of 47%. Artificial drying of seeds with water contents higher than 32.5% is not recommended for the condition outside the pod. The seed physiological potential decreases after six months of storage, regardless of the drying condition.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45874196","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

Phosphate fertilization and critical leaf phosphorus content for okra 磷肥与秋葵临界叶磷含量

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n225rc

Arilson de J. F. Souza, A. F. Wamser, Vitor B. da Silva, S. M. C. Nascimento, Leilson Costa Grangeiro, A. B. Cecílio Filho

{"title":"Phosphate fertilization and critical leaf phosphorus content for okra","authors":"Arilson de J. F. Souza, A. F. Wamser, Vitor B. da Silva, S. M. C. Nascimento, Leilson Costa Grangeiro, A. B. Cecílio Filho","doi":"10.1590/1983-21252023v36n225rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n225rc","url":null,"abstract":"ABSTRACT The objective of this study was to evaluate the growth and yield of okra as a function of phosphorus (P) doses and to obtain the critical leaf P content, under the edaphoclimatic conditions of Maranhão (MA), Brazil. The field experiment was carried out from February 15, 2017, to May 9, 2017, in São Luís, MA. The experimental design was randomized blocks, with four replications. The treatments were doses of 0, 80, 160, 240 and 320 kg ha-1 of P2O5, in the form of triple superphosphate, at planting, plus 10 t ha-1 of solid cattle manure. The increase of the P dose increased plant height, leaf dry mass and stem dry mass. With phosphorus supply, flowering occurred earlier than in plants without fertilization. Considering soils with low P content (P(resin) = 11 to 25 mg dm-3) and the minimum recommended organic fertilization for the okra crop of 10 t ha-1 of solid cattle manure, the maximum number of fruits, length of fruit and yield (9960.36 kg ha-1) were obtained with the fertilization of 80 kg ha-1 of P2O5, for the edaphoclimatic conditions of MA, Brazil. The critical leaf P content in okra is 3.4 g kg-1.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44677678","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

Morpho-agronomic diversity and botanical identification of melon accessions from northeastern Brazil 巴西东北部甜瓜种质形态农艺多样性及植物鉴定

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n202rc

Bárbara L. R. Barbosa, M. A. DE QUEIRÓZ, Clisneide C. de Amorim, G. D. S. Barbosa, Ronaldo S. de Oliveira

{"title":"Morpho-agronomic diversity and botanical identification of melon accessions from northeastern Brazil","authors":"Bárbara L. R. Barbosa, M. A. DE QUEIRÓZ, Clisneide C. de Amorim, G. D. S. Barbosa, Ronaldo S. de Oliveira","doi":"10.1590/1983-21252023v36n202rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n202rc","url":null,"abstract":"ABSTRACT Melon (Cucumis melo L.) crops are grown in the Semiarid region of Brazil by small, medium, and large farmers, focused on domestic and international markets. However, melon is also grown by family farmers using their own seeds, which are important germplasm for melon breeding programs. Samples of these seeds were collected and stored in the Active Germplasm Bank of Cucurbitaceae from the Northeast Region at the Brazilian Agricultural Research Corporation (Embrapa Semiarid), and require more thorough studies for a better understanding of the existing variability. Thus, the objective of this work was to characterize sub-accessions and their respective endogamic progenies to assess the genetic variability between and among these accessions. Two experiments were conducted in a randomized complete block design, with three replications, using 11 quantitative and 8 qualitative descriptors: the first using seeds from 17 accessions from natural pollination, and the second using seeds from S1 progenies. Morphological data were used for comparisons between generations. The 17 accessions evaluated originated 24 sub-accessions, denoting variability between and among accessions and sub-accessions. A dendrogram developed based on the Unweighted Pair Group Method with Arithmetic Mean (UPGMA) showed the existing variability and, according to the newest melon classification, the groups identified were: makuwa, subgroup nashi-uri; and momordica and cantalupensis, subgroup prescott. The results showed a probable existence of introgression of alleles between different botanical groups, and some sub-accessions were not identified regarding their group by presenting variations in morphological characteristics, indicating the presence of new botanical groups.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47153699","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

Genetic parameters and selection indices of cowpea genotypes for green grain production 绿色粮食生产豇豆基因型的遗传参数和选择指标

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n208rc

A. S. Pessoa, C. D. M. Bertini, É. B. D. L. Castro, Leslyene M. de Freitas, L.B.R. Araújo

{"title":"Genetic parameters and selection indices of cowpea genotypes for green grain production","authors":"A. S. Pessoa, C. D. M. Bertini, É. B. D. L. Castro, Leslyene M. de Freitas, L.B.R. Araújo","doi":"10.1590/1983-21252023v36n208rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n208rc","url":null,"abstract":"ABSTRACT Cowpea is a legume that is grown worldwide and used for different purposes, especially as green grains. However, considering the low availability of cowpea cultivars for green grain production, selecting genotypes that have better traits for this purpose is necessary. In this context, the objective of this study was to estimate genetic parameters and evaluate different selection indices for identifying superior cowpea genotypes and subsidizing cowpea breeding programs focused on green grain production. A field experiment was conducted at the Center of Agricultural Sciences of the Federal University of Ceará (UFC), Ceará, Brazil. The treatments consisted of 42 cowpea genotypes from the Active Germplasm Bank of the UFC. Fourteen traits were used for characterization. The experiment was conducted in an augmented block design with four controls. The data obtained were subjected to analysis of variance, and genetic parameters, correlations, and selection indices were determined. The traits days to flowering (DFL), days to fruiting (DFR), green pod weight (GPW), green pod width (GW), green pod length (GPL), green pod thickness (GPT), number of grains per pod (NGP), and green grain thickness (GGT) showed heritability higher than 70%, indicating that selection in an early generation is favorable. The genetic correlations between the trait pairs DFL×DFR, GPW×GPL, and GW×GGT were higher than the phenotypic and environmental correlations. Genotypes CE-228, CE-688, CE-994, CE-165, CE-796, and BRS-Paraguaçu showed simultaneous superiority for the evaluated traits and are the most appropriate for green grain production.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46254593","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