Acta Scientiarum. Agronomy.最新文献_第6页

Seed quality of Brachiaria brizantha by X-ray image analysis using a Bayesian approach 用贝叶斯方法对棘臂鱼种子质量进行x射线图像分析

IF 1.5 4区农林科学

Acta Scientiarum. Agronomy. Pub Date : 2022-06-29 DOI: 10.4025/actasciagron.v44i1.55960

Alessandra Querino da Silva, Luciano Antonio de Oliveira, Carlos Pereira da Silva, Cristian Tiago Erazo Mendes, Ana Ferreira, T. Sáfadi, M. Carvalho

{"title":"Seed quality of Brachiaria brizantha by X-ray image analysis using a Bayesian approach","authors":"Alessandra Querino da Silva, Luciano Antonio de Oliveira, Carlos Pereira da Silva, Cristian Tiago Erazo Mendes, Ana Ferreira, T. Sáfadi, M. Carvalho","doi":"10.4025/actasciagron.v44i1.55960","DOIUrl":"https://doi.org/10.4025/actasciagron.v44i1.55960","url":null,"abstract":"Brachiaria brizantha is the most economically important forage grass in Brazil and is propagated through sowing. Producing high-quality seeds has been a constant challenge due to their uneven maturation. The development and application of precise and non-destructive methods for identifying internal damages to seeds, such as the X-ray test, which quickly indicates the quality of the lots, is of fundamental importance for the seed industry. In this work, the quality of Brachiaria brizantha seeds was analyzed based on the morphological characteristics observed in X-ray images that were related to viability using a mixture model under a Bayesian approach, with the following objectives: i) verify the adequacy of the Bayesian modeling used in the data analysis; ii) associate the efficiency of using radiographs as a way to assess the viability of the seeds; and iii) relate the classifications carried out by evaluators with the probability of originating normal or abnormal seedlings. The methodology applied for the analysis proved to be adequate. Further, the Bayesian estimates for parameters related to internal morphology were established with associated levels of uncertainty, which represents an advantage over usual frequentist methods. Based on the model's estimates, seeds evaluated as potentially unviable by three evaluators had practically no probability of germination and did not germinate in the test applied later. Seeds classified as potentially viable had a high probability of developing into normal seedlings, while 73.27% showed this property in the germination test.","PeriodicalId":56373,"journal":{"name":"Acta Scientiarum. Agronomy.","volume":"51 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76591065","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

Soybean tolerance to defoliation at the vegetative and reproductive stages as a function of water restriction 大豆在营养和生殖阶段对落叶的耐受性与水分限制的关系

IF 1.5 4区农林科学

Acta Scientiarum. Agronomy. Pub Date : 2022-06-29 DOI: 10.4025/actasciagron.v44i1.55639

L. Leolato, L. Sangoi, C. A. Souza, H. F. Kuneski, Rafael Leandro Scherer, Vander de Liz Oliveira, Marcos Cardoso Martins Júnior, R. Kandler

{"title":"Soybean tolerance to defoliation at the vegetative and reproductive stages as a function of water restriction","authors":"L. Leolato, L. Sangoi, C. A. Souza, H. F. Kuneski, Rafael Leandro Scherer, Vander de Liz Oliveira, Marcos Cardoso Martins Júnior, R. Kandler","doi":"10.4025/actasciagron.v44i1.55639","DOIUrl":"https://doi.org/10.4025/actasciagron.v44i1.55639","url":null,"abstract":"Water deficiency reduces leaf expansion and photosynthetic efficiency, potentially reducing the ability to withstand leaf area (LA) loss. This study aimed to evaluate the effects of water restriction on soybean tolerance to defoliation in the vegetative and reproductive periods of development. Two experiments were conducted in a greenhouse located in Lages, Santa Catarina State Brazil, during the 2017/2018 growing season. Cultivar NA 5909 RG was subjected to three WR levels (none, moderate, and severe) and five defoliation levels (0, 17, 33, 50, and 67%). Defoliation occurred at the V6 stage in the first experiment and R3 in the second. WR occurred for 7 days after defoliation. LA at R2 and R5 after defoliation at V6 and R3 decreased by 27.5 and 64.6%, respectively, regardless of WR. LA between V6 and R2 was not influenced by WR or defoliation. Moderate or severe WR reduced plant ability to recover LA between R3 and R5. Severe WR decreased grain production by 22.2% in the vegetative period and 21.2% per plant in the reproductive period compared to that of the control, regardless of defoliation. The highest defoliation level reduced grain production per plant by 24.7 and 24.3% relative to the control at stages V6 and R3, respectively, regardless of WR. WR imposed at the vegetative and reproductive stages did not increase defoliation sensitivity.","PeriodicalId":56373,"journal":{"name":"Acta Scientiarum. Agronomy.","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82149401","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

Productivity and grain size of coffee grown in different weed management systems 不同杂草管理系统下咖啡的产量和颗粒大小

IF 1.5 4区农林科学

Acta Scientiarum. Agronomy. Pub Date : 2022-06-29 DOI: 10.4025/actasciagron.v44i1.55692

Ú. R. Zaidan, R. C. Campos, R. M. Faria, I. R. Zaidan, W. D. Souza, R. H. Santos, F. Freitas

{"title":"Productivity and grain size of coffee grown in different weed management systems","authors":"Ú. R. Zaidan, R. C. Campos, R. M. Faria, I. R. Zaidan, W. D. Souza, R. H. Santos, F. Freitas","doi":"10.4025/actasciagron.v44i1.55692","DOIUrl":"https://doi.org/10.4025/actasciagron.v44i1.55692","url":null,"abstract":"Intensive weed management is one of the most common practices in coffee cultivation areas. Consequently, some problems, such as soil degradation and the selection of herbicide resistant weed, have increased over time, but, if properly managed, weeds at coffee planting inter-rows can offer benefits of erosion control, nutrient recycling and crop sustainability. The aim of this study is to evaluate the effect of different weed management strategies on the productivity and coffee grain size, i.e., quality. The experiment is installed onto a resprouting Coffea arabica L. site, four years after it was established. Treatments are implanted at planting inter-row Urochloa ruziziensis, Pueraria phaseoloides, and spontaneous vegetation maintained by mowing, herbicides, and weeding. To measure dry matter accumulation, samples are taken with a 0.25 m2 square template at plots maintained by mowing and herbicide application. To evaluate the yield and granulometry, coffee fruits are harvested, processed and classified in a set of 14 sieves (grouped in flat or “moca” shapes). The methods of controlling herbicide and weeding show significance in relation to grain production, with the production of grains having a higher market value standing out, when compared with the other treatments. The accumulation of dry matter above soil, in treatments with herbicides and spontaneous vegetation positively influenced the early coffee productivity (2018), and with U. ruziziensis and spontaneous vegetation, positively influenced the productivity of late harvest (2019). The accumulation of dry matter on the soil tends to be positively linked to coffee productivity, especially in periods when there is a shortage of rain in the region under study; however, it cannot be stated that this influence relationship (causality) has a direct positive effect between dry matter mass production and productivity of future coffee plantations.","PeriodicalId":56373,"journal":{"name":"Acta Scientiarum. Agronomy.","volume":"46 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86699487","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: 3

Spatial variability in evaluation experiments of corn genotypes in the state of Mato Grosso do Sul, Brazil 巴西南马托格罗索州玉米基因型评价试验的空间变异

IF 1.5 4区农林科学

Acta Scientiarum. Agronomy. Pub Date : 2022-06-29 DOI: 10.4025/actasciagron.v44i1.55972

Euriann Lopes Marques Yamamotto, M. C. Gonçalves, L. M. C. Davide, D. Rossoni, Adriano dos Santos

{"title":"Spatial variability in evaluation experiments of corn genotypes in the state of Mato Grosso do Sul, Brazil","authors":"Euriann Lopes Marques Yamamotto, M. C. Gonçalves, L. M. C. Davide, D. Rossoni, Adriano dos Santos","doi":"10.4025/actasciagron.v44i1.55972","DOIUrl":"https://doi.org/10.4025/actasciagron.v44i1.55972","url":null,"abstract":"Analysis of variance (ANOVA) is the most used procedure for comparing means between different groups. However, in some cases, disregarding the assumptions of ANOVA can lead to spatial dependence. In such cases, to ensure greater experimental precision, it is necessary to consider the study of spatial dependence. This study was carried out to compare the estimates of experimental precision of the traditional analysis of variance with those of the analysis of variance using an autoregressive (ANOVA-AR) model in corn experiments under different N conditions when evaluating grain yield. Data were obtained from 14 experiments using lattice designs conducted in 2012, 2014, and 2015 in the following counties in the Brazilian state of Mato Grosso do Sul: Caarapó, Dourados, Glória de Dourados, and Laguna Carapã. Of the 14 experiments, 7 were performed with N fertilization (ideal) and 7 experiments were performed under stressful conditions (zero or low). Both analyses were compared by considering estimates of reduction of the error mean square, coefficient of determination, F-value, and selective accuracy as well as the difference in the order of 25% of the genotypes of each experiment (from 13 to 56 genotypes, considering the size of the experiment). Differences in the error mean square and genotype mean square were slightly more evident in 1, 2, 3, 4, 5, 6, and 11 experiments but the use of ANOVA-AR did not promote major changes. The analysis of variance with an autoregressive model provided parameter values of experimental precision similar to those expressed by traditional analysis of variance. There was no difference in terms of correlated errors in experiments under different N conditions.","PeriodicalId":56373,"journal":{"name":"Acta Scientiarum. Agronomy.","volume":"57 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76891546","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

Banana leaf anatomy characteristics related to ploidy levels 香蕉叶解剖特征与倍性水平的关系

IF 1.5 4区农林科学

Acta Scientiarum. Agronomy. Pub Date : 2022-06-29 DOI: 10.4025/actasciagron.v44i1.55709

R. H. Madail, L. A. S. Pio, R. A. L. S. Rezende, M. Pasqual, S. O. E. Silva

{"title":"Banana leaf anatomy characteristics related to ploidy levels","authors":"R. H. Madail, L. A. S. Pio, R. A. L. S. Rezende, M. Pasqual, S. O. E. Silva","doi":"10.4025/actasciagron.v44i1.55709","DOIUrl":"https://doi.org/10.4025/actasciagron.v44i1.55709","url":null,"abstract":"Many important crops have cultivars with different ploidy and provide a diverse choice of materials for breeding programs. Therefore, it is essential to accurately assess the ploidy of all breeding materials. Increased DNA content is known to have various effects on external and internal morphology, an effect known as the “nucleotypic effect”. Thus, anatomical assessment can be used as a tool for determining ploidy in plants, making the chromosome counting technique or flow cytometry unnecessary. This study aimed to evaluate the leaf anatomical characteristics of banana cultivars and understand the relationship between these features and ploidy levels. Thirteen accessions were evaluated, including diploid, triploid, and tetraploid genotypes, and cultivars, resulting from in vitro propagation after 90 days of acclimatization. Five fully expanded young leaves were collected from each cultivar, fixed in FAA70 (formaldehyde–acetic acid–ethanol) and preserved in 70% alcohol. Transverse and paradermal sections of the abaxial and adaxial regions were taken, and variables such as size and stomatal density, leaf thickness in the midrib and fourth vascular bundle region, and thickness of the epidermis, hypodermis, and parenchyma were measured. Results for leaf thickness, stomatal size, and density proved to be appropriate parameters for characterizing banana ploidy levels.","PeriodicalId":56373,"journal":{"name":"Acta Scientiarum. Agronomy.","volume":"447 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82909514","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

Gene expression analysis associated with tissue-specific promoters in Musa spp. 番薯组织特异性启动子相关基因表达分析。

IF 1.5 4区农林科学

Acta Scientiarum. Agronomy. Pub Date : 2022-06-29 DOI: 10.4025/actasciagron.v44i1.55893

K. G. Livramento, N. C. Freitas, Luciene de Oliveira Ribeiro Trindade, Luiz Gustavo da Silva Teixeira, L. V. Paiva, P. Bordallo, L. E. C. Diniz

{"title":"Gene expression analysis associated with tissue-specific promoters in Musa spp.","authors":"K. G. Livramento, N. C. Freitas, Luciene de Oliveira Ribeiro Trindade, Luiz Gustavo da Silva Teixeira, L. V. Paiva, P. Bordallo, L. E. C. Diniz","doi":"10.4025/actasciagron.v44i1.55893","DOIUrl":"https://doi.org/10.4025/actasciagron.v44i1.55893","url":null,"abstract":"The study of promoters has become essential to elucidate genetic regulation and allow new genetic transformation strategies through plant biotechnology. The challenge is to discover and validate promoters that can regulate gene transcription spatially and/or temporally. The goal of this work was to validate genes associated with tissue-specific promoters of bananas obtained from in silico sequences and selected from the DATAMusa databank. Gene expression was quantified using RT-qPCR from different tissues: leaves, flowers, roots, unripe pulp, ripe pulp, unripe peels, and ripe peels of two different genetic groups: Prata-Anã (PA; group AAB) and Grand Naine (GN; group AAA). After the analysis of the expression of genes associated with the promoters, normalization was performed with the most stable reference genes (TUB and L2) selected using the RefFinder tool. It was determined that five genes were specific or expressed to a greater extent in some tissues than others. The EMB-23 gene was highly expressed in ripe pulp and flowers of GN, EMB-26 in the ripe pulp of GN, EMB-27 in flowers of GN, EMB-28 in roots of PA and ripe pulp and roots of GN, and EMB-31 in roots and flowers of GN and PA, and unripe pulp of GN. The in silico analysis was efficient in the identification of spatial/time-specific genes, thereby decreasing analysis time and cost, making future genetic transformation studies focusing on the application of these tissue-specific promoters possible.","PeriodicalId":56373,"journal":{"name":"Acta Scientiarum. Agronomy.","volume":"12 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89291294","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

Mycorrhization of strawberry plantlets potentiates the synthesis of phytochemicals during ex vitro acclimatization 在离体驯化过程中，草莓植株的菌根化增强了植物化学物质的合成

IF 1.5 4区农林科学

Acta Scientiarum. Agronomy. Pub Date : 2022-06-29 DOI: 10.4025/actasciagron.v44i1.55682

J. Chiomento, F. D. Nardi, D. Filippi, T. S. Trentin, Ana Paula Anzolin, C. Bertol, A. A. Nienow, E. Calvete

{"title":"Mycorrhization of strawberry plantlets potentiates the synthesis of phytochemicals during ex vitro acclimatization","authors":"J. Chiomento, F. D. Nardi, D. Filippi, T. S. Trentin, Ana Paula Anzolin, C. Bertol, A. A. Nienow, E. Calvete","doi":"10.4025/actasciagron.v44i1.55682","DOIUrl":"https://doi.org/10.4025/actasciagron.v44i1.55682","url":null,"abstract":"Ex vitro strawberry plantlets from micropropagation and coinoculated with arbuscular mycorrhizal fungi (AMF) and biochar can provide beneficial health effects. In the present study, we evaluated the effects of different proportions of biochar in the presence and absence of AMF on the production of secondary metabolites in the leaves and roots of strawberry plantlets during ex vitro acclimatization. Additionally, the enzymatic activity of the substrate enriched with AMF and biochar was analyzed. The experiment consisted of the control (absence of the mycorrhizal community) and four biochar proportions (0, 3, 6, and 9% of the volume of the container) coinoculated with AMF. Plantlets produced on substrates enriched with AMF showed higher levels of polyphenols, flavonoids, phenolic acids, and tannins in the tissues analyzed than control plantlets. The combination of AMF and 9% biochar increased the content of total flavonoids in the leaves of strawberry plantlets and increased the activity of phosphatase. The substrate with up to 6% biochar and mycorrhizae showed increased β-glucosidase activity. In conclusion, mycorrhizae are excellent tools to improve the phytochemical quality of strawberry plantlets acclimatized ex vitro. The association between host plants, mycorrhizal symbionts, and bioactivators of these fungi potentiates properties beneficial to health, which can be exploited efficiently in sustainable agriculture.","PeriodicalId":56373,"journal":{"name":"Acta Scientiarum. Agronomy.","volume":"40 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80879093","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

Brassinosteroid application increases tomato tolerance to salinity by changing the effects of stress on membrane integrity and gas exchange 油菜素内酯通过改变胁迫对膜完整性和气体交换的影响，提高了番茄的耐盐性

IF 1.5 4区农林科学

Acta Scientiarum. Agronomy. Pub Date : 2022-06-29 DOI: 10.4025/actasciagron.v44i1.55647

S. O. M. Maia Júnior, Jailma Ribeiro de Andrade, R. D. Nascimento, R. F. Lima, C. V. C. Bezerra, V. M. Ferreira

{"title":"Brassinosteroid application increases tomato tolerance to salinity by changing the effects of stress on membrane integrity and gas exchange","authors":"S. O. M. Maia Júnior, Jailma Ribeiro de Andrade, R. D. Nascimento, R. F. Lima, C. V. C. Bezerra, V. M. Ferreira","doi":"10.4025/actasciagron.v44i1.55647","DOIUrl":"https://doi.org/10.4025/actasciagron.v44i1.55647","url":null,"abstract":"Salinity is one of the environmental stresses that most cause losses in agricultural systems, including tomato production. Brassinosteroids, such as epibrassinolide (EBL), have multiple actions in essential processes in plants. Thus, the objective of this study was to evaluate the contributions of EBL to the growth, physiology, and production of tomato plants under salinity. The experiment was conducted in a factorial scheme, with five levels of water salinity (0.5 [the control], 1.5, 3.0, 4.5, and 6.0 dS m-1) and two concentrations of EBL (0 and 10-6 M). Salt stress reduced tomato growth, relative water content, membrane integrity, gas exchange, and fruit production. However, the exogenous application of EBL attenuated the adverse effects, partially improving these characteristics at all salinity levels. EBL reduced electrolyte leakage and increased membrane integrity and relative water content in control and stressed plants. Additionally, it increased the content of photosynthetic pigments, stomatal conductance, transpiration, and photosynthesis, which led to higher leaf dry mass production, fruit transverse diameter, and production per plant. Therefore, our results confirmed that foliar application of EBL improved the characteristics of stressed and non-stressed tomato plants.","PeriodicalId":56373,"journal":{"name":"Acta Scientiarum. Agronomy.","volume":"30 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83350464","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

Genetic parameters and gains with the selection of fig tree genotypes 无花果树基因型选择的遗传参数和增益

IF 1.5 4区农林科学

Acta Scientiarum. Agronomy. Pub Date : 2022-06-29 DOI: 10.4025/actasciagron.v44i1.55796

P. D. Almeida, B. E. Pavan, M. G. F. Rodrigues, Guilherme de Freitas Gaspar, Leonardo de Paula Giro, Renan Furquim da Silva

{"title":"Genetic parameters and gains with the selection of fig tree genotypes","authors":"P. D. Almeida, B. E. Pavan, M. G. F. Rodrigues, Guilherme de Freitas Gaspar, Leonardo de Paula Giro, Renan Furquim da Silva","doi":"10.4025/actasciagron.v44i1.55796","DOIUrl":"https://doi.org/10.4025/actasciagron.v44i1.55796","url":null,"abstract":"Fig tree (Ficus carica L., Moraceae), which originated in the Mediterranean Basin, is one of the many fruit trees grown in Brazil, with ‘Roxo-de-Valinhos’ being the exclusively used cultivar. In this context, research aimed at the improvement of this species to develop highly resistant and adaptable cultivars is paramount. Thus, the present study aimed to maintain fig accessions in an in vivo active germplasm bank (AGB) at the Faculty of Engineering of Ilha Solteira (FEIS), São Paulo State University (UNESP), as well as to characterize the agronomic traits of these accessions based on quantitative descriptors of genetic parameters and observe gains with the selection of specific genotypes to illustrate the AGB in terms of genetic variability. A total of 36 F. carica genotypes were evaluated in the field at the Teaching, Research and Extension Farm (FEPE) of the FEIS, UNESP. Qualitative traits, fruit parameters (e.g., insertion of the first fruit, fruit stalk length, fruit length, fruit diameter, and average fruit mass), and accumulated plant dry mass were measured. In addition, genetic parameters, variance components, and descriptive statistics, including genetic and environmental variances, heritability and average heritability of clones, coefficients of genotypic and environmental variation and their ratio ( ), general average, and selection gain, were evaluated. The selected fig tree accessions showed genetic variability in the assessed traits, exhibiting good heritability and achieving selection gains. For instance, the first 10 classified clones exhibited a heritability of 80.2% and achieved a selection gain of 98% for accumulated plant dry mass. Therefore, the maintenance of in vivo AGBs allows agronomic studies, offering promising results for continuing the breeding programs and preserving the genetic variability of species.","PeriodicalId":56373,"journal":{"name":"Acta Scientiarum. Agronomy.","volume":"51 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90735627","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

Genotype × environment interaction for the agronomic performance of high β-carotene sweetpotato 高β-胡萝卜素甘薯农艺性状的基因型与环境互作

IF 1.5 4区农林科学

Acta Scientiarum. Agronomy. Pub Date : 2022-06-29 DOI: 10.4025/actasciagron.v44i1.55766

M. E. F. Otoboni, Darllan Junior Luiz Santos Ferreira de Oliveira, B. E. Pavan, M. Andrade, P. Vargas

{"title":"Genotype × environment interaction for the agronomic performance of high β-carotene sweetpotato","authors":"M. E. F. Otoboni, Darllan Junior Luiz Santos Ferreira de Oliveira, B. E. Pavan, M. Andrade, P. Vargas","doi":"10.4025/actasciagron.v44i1.55766","DOIUrl":"https://doi.org/10.4025/actasciagron.v44i1.55766","url":null,"abstract":"Sweetpotato (Ipomoea batatas L.) is an important tuber vegetable for human health worldwide owing to its nutritional value and productivity. Consumption of orange-fleshed sweetpotato is beneficial to combat vitamin A deficiency in the world, including Brazil, as these tubers are rich in β-carotene, a precursor of vitamin A. The genotype × environment interaction is one of the greatest challenges in plant breeding, specifically in the selection and approval of cultivars. In this context, adaptability and stability analyses are warranted to evaluate the performance of various genotypes in terms of general or specific adaptations to certain environments and to identify genotypes responsive to environmental variations. Thus, the objective of this study was to evaluate the genotype × environment interaction as well as to estimate the adaptability and stability of sweetpotato genotypes for identifying and selecting promising candidates for breeding. The experiments were performed in four environments: Vera Cruz in São Paulo, Selvíria in Mato Grosso do Sul, and one organic and another intercropped production system in Sete Barras in São Paulo. A randomized block design with two replicates was adopted. A total of 265 genotypes were tested, and the orange-fleshed sweetpotato cultivar ‘Beauregard’ was used as the control. The additive main effects and multiplicative interaction model was used to study environmental stratification, adaptability, and stability. The genotype × environment interaction was evident in all environments. The genotypes CERAT21-13 (marketable root yield, 22.30 t ha-1 in the four environments), CERAT29-26 (27.74 t ha-1), and CERAT52-22 (20.24 t ha-1) were the most adapted in general to the four environments. CERAT25-23, CERAT29-23, and CERAT29-26 were the most adapted to the environment in Vera Cruz; CERAT29-26, CERAT34-14, and CERAT56-32 to the environment in Selvíria; and CERAT31-10, CERAT35-19, and CERAT52-22 to the two environments in Sete Barras.","PeriodicalId":56373,"journal":{"name":"Acta Scientiarum. Agronomy.","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91090733","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