Understanding the combining ability for physiological traits in soybean

Teodoro, Larissa Pereira Ribeiro; Bhering, Leonardo Lopes; Gomes, Bruno Ermelindo Lopes; Campos, Cid Naudi Silva; Baio, Fábio Henrique Rojo; Gava, Ricardo; Júnior, Carlos Antonio da Silva; Teodoro, Paulo Eduardo

doi:10.1371/journal.pone.0226523

Cited by 25 publications

(35 citation statements)

References 33 publications

(41 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is important to highlight that the coefficient of variation (CV) over the two crop seasons were less than 10%, revealing high experimental accuracy. The CV obtained here was similar to the values reported other studies assessing physiological traits in soybean (Oliveira, de Azevedo Peixoto, et al., 2018; Oliveira, Peixoto, et al., 2018; Teodoro et al., 2019; Zobiole et al., 2010).…”

Section: Resultssupporting

confidence: 91%

See 1 more Smart Citation

Physiological response and earliness of soybean genotypes to soil base saturation conditions

Andrade

Patinni

Pantaleão

et al. 2020

J Agronomy Crop Science

Self Cite

View full text Add to dashboard Cite

Low base saturation (V) is one of the major abiotic stresses in the Brazilian Cerrado. Given this scenario, it is important to evaluate different physiological responses of genotypes in environments with and without liming aiming at select both liming responsive and low‐saturation tolerant genotypes. The hypothesis of this study is that contrasting V conditions provide changes in physiological performance of soybean genotypes. Thus, our objective was to select soybean genotypes in environments with recommended and low V. Two field experiments were carried in randomized block design with three replicates and 10 F3 soybean genotypes (P1, P2, P3, P4, P5, P6, P7, P8, P9 and P10). In the first experiment, genotypes were evaluated without V correction (V = 30%), while in the second experiment, a liming was performed three months before to raise V to 60%. The traits evaluated were as follows: calcium and magnesium contents, days for maturation, transpiration, net photosynthesis, stomatal conductance and internal CO2 concentration. Our findings indicate that the physiological performance of soybean genotypes depends on the saturation condition. The P9 genotype obtained the best physiological performance under recommended V and can be used to obtain F3:4 lines physiologically responsive to soil correction. The P5 genotype obtained the best physiological performance at low V and can be used to obtain F3:4 lines aiming at a higher tolerance to low saturation. Considering that the Brazilian soils, especially in the Cerrado, are mostly poorly fertile, our study provide crucial information for soybean breeding programmes aiming at selecting genotypes tolerant to limiting environmental conditions.

show abstract

Section: Resultssupporting

confidence: 91%

“…The third leaf fully developed from the apex of the plant was assessed, as performed by Teodoro et al. (2019). Measurements were taken on cloudless days with temperatures between 26.0 and 26.5ºC and relative humidity between 50% and 80%.…”

Section: Methodsmentioning

confidence: 99%

Physiological response and earliness of soybean genotypes to soil base saturation conditions

Andrade

Patinni

Pantaleão

et al. 2020

J Agronomy Crop Science

Self Cite

View full text Add to dashboard Cite

show abstract

“…At 60 days after emergence (DAE), physiological traits were analysed using a portable photosynthesis analyser (Infrared Gas Analyzer—IRGA) model Li‐6400XT (LiCor Inc., Lincoln, Nebraska, USA). Photosynthetically active photon flux of 1,044 μmol/m 2 s ‐1 and environment CO 2 concentrations (372 ± 10 mol m −2 s −1 ) were used (Teodoro et al., 2019). The physiological traits measured were net photosynthesis (A, µmol CO 2 m −2 s −1 ), transpiration (E, mmol H 2 O m −2 s −1 ), stomatal conductance (gs, mol H 2 O m −2 s −1 ), and internal CO 2 concentration (Ci, µmol/CO 2 mol), instant water‐use efficiency (WUE) and instant carboxylation efficiency (ICE).…”

Section: Methodsmentioning

confidence: 99%

“…Measurements were taken on cloudless days with temperatures of 26ºC and relative humidity between 50% and 80%. We used the third leaf fully developed from the apex of the plant, which is considered diagnostic for soybean nutritional analysis, and this is where occurs most of the metabolic processes responsible for the energy acquisition by plants (Teodoro et al., 2019). Grain yield (GY) was assessed by harvesting 1 m of plants in the centre of each experimental unit.…”

Section: Methodsmentioning

confidence: 99%

Physiological performance of soybean genotypes grown under irrigated and rainfed conditions

Cotrim

Gava

Campos

et al. 2020

J Agronomy Crop Science

Self Cite

View full text Add to dashboard Cite

Gas exchange analysis is an important technique, as the reduction in yield may be related to the decreased photosynthetic activity, due to adverse climatic factors in the growing site. The hypothesis of this study was that contrasting soil water conditions result in different photosynthetic performance in soybean genotypes. Thus, our objective was to analyse the physiological capacity in soybean genotypes under field conditions with optimal soil moisture and under water deficit. The experimental design was random blocks with 10 genotypes (P1, P2, P3, P4, P5, P6, P7, P8, P9 and P10) and three replicates. Individual analysis of variance was performed in both environments (irrigated and rainfed), and a correlation network between the traits was generated. We measured the traits net photosynthesis, stomatal conductance, internal CO2 concentration, instant water‐use efficiency, instant carboxylation efficiency and grain yield. Stressed plants reduce stomatal conductance and transpiration, but increase the instant water‐use efficiency as a defence mechanism in sub‐optimal soil moisture conditions. The P6 genotype obtained better physiological capacity under irrigated conditions, while the P10 genotype showed the better performance under rainfed conditions, which makes it tolerant to water stress. Our findings can contribute to the genotype formation and parental choice steps in breeding programs aimed at obtaining both irrigation‐responsive and drought‐tolerant genotypes.

show abstract

“…This, in turn, suggests the breeder whether to go for F1 hybrid development or selection in subsequent generations to realize homozygous promising lines [27]. The information on combining ability effects (general and specific combining ability) are useful for the precise interpretation of the genetic basis of promising traits [28][29][30]. Keeping in view of these facts and need, the present investigation was planned with the following three objectives:…”

Section: Introductionmentioning

confidence: 99%

Appraisal of Genetics and Heterosis of Important Traits in Chilli Pepper Cultivated under the Influence of Chilli Leaf Curl Virus Disease

Vijeth¹,

Sreelathakumary²,

Rafeekher³

et al. 2019

Preprint

View full text Add to dashboard Cite

Chilli leaf curl virus (ChiLCV) is a severe threat to the successful cultivation of the chilli peppers. Besides, the genetics and heterosis for important traits under the influence of ChiLCV infestation is not well studied. Therefore here, were crossed seven genotypes (lines) with high yield and quality attributes with four highly resistant genotypes (testers) in a line (L) × tester (T) mating design to produce 28 F1 hybrids. Parents and their hybrids were evaluated for yield attributes and ChiLCV resistance. All the four testers were symptomless and among seven lines, two were moderately resistant and five were moderately susceptible to the ChiLCV. Among 28 F1 hybrids, 12 showed a moderate resistant reaction, 11 were moderately susceptible and five susceptible to the ChiLCV disease. Based on per se performance, most promising hybrid combinations were L3 × T2, L6 × T1, and L3 × T1 for yield attributes. Whereas the superior crosses for ChiLCV resistance based on heterobeltosis, standard heterosis and specific combining ability test (SCA) effects were L6 × T1 and L7 × T3. Lines and testers showed significant differences for all the characters except for the plant height. The general combining ability (GCA) effects for testers were significant for all the traits except for days to first harvest. The ratio of σ2GCA/σ2SCA indicated the predominance of non-additive gene effects in the inheritance of traits studied in this experiment. The contribution of lines was more compared to testers for all the characters except for primary branches plant-1. Overall, this study provides valuable information regarding the genetics and heterosis in chilli with respect to ChiLCV infestation

show abstract

Understanding the combining ability for physiological traits in soybean

Cited by 25 publications

References 33 publications

Physiological response and earliness of soybean genotypes to soil base saturation conditions

Physiological response and earliness of soybean genotypes to soil base saturation conditions

Physiological performance of soybean genotypes grown under irrigated and rainfed conditions

Appraisal of Genetics and Heterosis of Important Traits in Chilli Pepper Cultivated under the Influence of Chilli Leaf Curl Virus Disease

Contact Info

Product

Resources

About