Enhancing agronomic performance through genetic improvement of key traits in newly developed common bean cultivars cultivated in southern Brazil

Ribeiro, Nerinéia Dalfollo; dos Santos, Greice Godoy; de Andrade, Fabricio Fuzzer

doi:10.1007/s10681-023-03261-7

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…Harvest may be mechanized with lower losses. In addition, upright plants enable better air circulation in the crop and reduce the incidence of pathogens (Lemos et al 2022;Ribeiro et al 2019;Ribeiro et al 2024).…”

Section: Introductionmentioning

confidence: 99%

Strategies for recurrent selection programs aiming upright common bean plants

Júnior,

Berchembrock,

Pádua

2024

Preprint

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In common beans (Phaseolus vulgaris L.), upright plant architecture is highly valued for agriculture. As plant architecture is controlled by many genes, recurrent selection is the optimal strategy for breeding programs. Additionally, conducting mass selection before flowering to intercross selected plants in the field increases efficiency by reducing the number of harvest cycles needed to complete a selective breeding cycle. For this to be effective, the plant's architecture at flowering must accurately predicts its trait at harvest. Based on that, the objective of this study was to verify whether there is an association between plant architecture at flowering and at harvest and to study the relationship between traits of plant architecture and grain yield. The traits assessed included plant height and plant architecture scores at flowering and harvest, stem diameter, grain yield, and the mass of one hundred grains. Sixty-two progenies from each S0:2, S0:3 and S0:4 generation, with two commercial cultivars as controls, were evaluated across three environments in a triple lattice experimental design. Genetic and phenotypic parameters and correlation coefficient were estimated. Progenies selection was carried out using index Z, and subsequently, the correlated response in the traits was determined. It was found that the correlation between heights and architecture scores at flowering and harvest were of high magnitude. There was also a low correlation between plant architecture traits and grain yield. The results of this study suggest that selecting upright plants during the flowering stage is feasible, and that plant architecture and grain yield are expressed independently.

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Section: Introductionmentioning

confidence: 99%

Strategies for recurrent selection programs aiming upright common bean plants

Júnior,

Berchembrock,

Pádua

2024

Preprint

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Strategies for recurrent selection programs aiming upright common bean plants

Vieira Júnior,

Berchembrock,

Pádua

2024

Euphytica

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Nutrient extraction and export by determinate and indeterminate common bean cultivars1

Silva,

Moreira,

Moraes

et al. 2024

Pesqui. Agropecu. Trop.

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There is evidence that the dry mass and nutrient accumulation rates of earlier (determinate) cultivars are faster than those of normal or late cycle (indeterminate). This study aimed to quantify the nutrient extraction and export and calculate the harvest index of determinate and indeterminate common bean cultivars. A randomized block design was used, with four replicates and eight cultivars (BRS FC104, TAA Gol, BRS Estilo, BRSMG Uai, IPR Tuiuiú, BRSMG Marte, Pérola and TAA Dama). The accumulation of dry matter and nutrients at the vegetative and reproductive stages, grain yield and grain nutrient export were determined. The early cultivars TAA Gol and BRS FC104 (Type I - determinate) accumulated more dry matter and nutrients during the vegetative stage than the indeterminate types II and III. However, from R7, no differences were observed among the cultivars for extractions or nutrient exports and harvest index. The cultivars exported 33, 11, 17, 2.3, 2.2 and 1.5 kg t-1 of grain for N, P2O5, K2O, S, Mg and Ca, respectively. Micronutrient exports were 14, 3.7, 70, 13 and 34 g Mg-1 of grain for B, Cu, Fe, Mn and Zn, respectively. The TAA Gol and BRS FC104 determinate cultivars reached the R9 stage at 77 days and the indeterminate cultivars at 85 (BRSMG Marte), 90 (IPR Tuiuiú and BRSMG Uai) and 93 days (TAA Dama and Pérola). BRS Estilo, BRS FC104 and TAA Gol had the lowest grain yield (< 2,200 kg ha-1) and TAA Dama the highest grain yield (3,275 kg ha-1).

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Enhancing agronomic performance through genetic improvement of key traits in newly developed common bean cultivars cultivated in southern Brazil

Cited by 3 publications

References 26 publications

Strategies for recurrent selection programs aiming upright common bean plants

Strategies for recurrent selection programs aiming upright common bean plants

Strategies for recurrent selection programs aiming upright common bean plants

Nutrient extraction and export by determinate and indeterminate common bean cultivars1

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