Reação de genótipos de soja ao alumínio em hidroponia e no solo

Souza, Luiz Augusto Copati

doi:10.1590/s0100-204x2001001000006

Cited by 3 publications

(2 citation statements)

References 11 publications

(7 reference statements)

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“…This indicates that differential expression of genotypes occurs in response to abiotic stress conditions. Similar results were reported by Souza (2001) and Lezcano, Vera, Segnana, and Riveros (2019), who evaluated the response of soya bean genotypes to aluminium toxicity and drought stress, respectively. The coefficients of variation obtained in the joint analysis were less than 10% for all traits and were lower than those obtained by Silva et al.…”

Section: Resultssupporting

confidence: 86%

Multivariate adaptability and stability of soya bean genotypes for abiotic stresses

Steiner

Zuffo

Teodoro

et al. 2020

J Agronomy Crop Science

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Drought stress, salinity and aluminium toxicity are considered the most critical abiotic factors limiting the growth of soya bean plants, accounting for the low yield of the crop in the Cerrado region. Our hypothesis is that soya bean cultivars have differential morphological responses to stressful environmental conditions. Thus, an experiment was carried out with the purpose of identifying and recommending soya bean genotypes that simultaneously combine adaptability and stability for morphological traits when subjected to stressful environmental conditions. Drought, saline and aluminium stresses were induced in seeds of 25 soya bean cultivars. Seed germination, and length and dry mass of the seedlings were measured. For each trait, adaptability and stability were evaluated by the Lin & Binns method and simultaneously considering all traits for the set of environments. There was significant GxE interaction for all traits evaluated. The genotypes 97R50 IPRO, BMX Bônus IPRO and 98R31 IPRO simultaneously combine adaptability and stability for all traits measured. These genotypes can be cultivated both under optimal and abiotic stress conditions, such as those investigated in this study. Additionally, they can be used as parents in crossing blocks aiming at obtaining genotypes resistant to drought, saline and aluminium toxicity stresses.

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Section: Resultssupporting

confidence: 86%

Multivariate adaptability and stability of soya bean genotypes for abiotic stresses

Steiner

Zuffo

Teodoro

et al. 2020

J Agronomy Crop Science

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“…Mesmo diante do geralmente complexo sistema reprodutor de muitas espécies florestais, ainda assim existe possibilidade de se selecionar pelo menos uma planta mãe que irá produzir sementes mais tolerantes com 50% de garantia genotípica. Os métodos são simples, rápidos (5 a 18 dias) e baratos podendo ser usados para selecionar plantas (SOUZA, 2001). Se for uma espécie autógama de baixa fecundação cruzada, a seleção de material genotípico mais tolerantes poderiam auxiliar no estabelecimento destas plantas em ambiente ácidos.…”

Section: Resultsunclassified

TOXIDEZ DO AL EM PLÂNTULAS DE ANGICO VERMELHO (Anadenathera macrocarpa (Benth) Brenan) e PATA-DE-VACA (Bauhinia variegata L.)

2017

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tolerante do que a B. variegata, nas condições testadas. Os efeitos da toxidez de Al foram notados pela ERR% em todas as soluções testadas. Os dados sugeriram que em estudo de toxidez de Al deveria ser usada a solução nutritiva completa e balanceada para A. macrocarpa e B. variegata. Palavras ABSTRACTThe daily forest species acquires more importance in society, not only because it is a several industry proposal, but also for its role in the greenhouse effect and urban thermal comfort. Comparing these species with the highest economic value, information on the effect of aluminuim (Al) in these plants is scarce. The parameters, root length, root growth rate (TCR) and relative root elongation (ERR%), normally used in aluminum toxicity studies in annual crops, were used to verify aluminum toxicity in the Angico Vermelho (Anadenanthera macrocarpa (Benth.) Brenan) and Pata-de-Vaca (Bauhinia variegata L.). The experiments were carried out in simple solutions containing only calcium (0.1 mM) and in a complete solution, of low ionic strength and balanced, with the seeds germinated in sand and later the seedlings transferred to the solutions for 8 to 18 days with concentration of aluminum from 50 to 800. The results indicated that the parameters tested could be used to study aluminum toxicity in these

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A proposal for aluminum tolerance selection in white oat under hydroponic conditions

Crestani

Silva

Tessmann

et al. 2011

J. Crop Sci. Biotechnol.

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White oat genotypes were subjected to Al stress in hydroponic conditions in order to verify the viability of methods based on minimum nutrient solution (MNS) in comparison to complete nutrient solution (CNS), commonly used in the characterization and selection for Al tolerance in this species. The experimental design was completely randomized blocks with three replicates composed of 10 seedlings each. Six white oat genotypes subjected to different Al levels in minimum (0, 3, 6, and 9 mg L -1 ) and complete (0, 10, 20, and 30 mg L -1 ) solutions were evaluated. In this evaluation, the MNS was efficient in identifying aluminum-tolerant, white oat genotypes under hydroponics. The root growth resumption showed to be the most effective trait in the aluminum-tolerant plant selection. At concentrations equal to or higher than 3 mg Al L -1 in minimum and 10 mg Al L -1 in complete solution, severe damage caused by the toxic element on root development was verified. The white oat cultivars UFRGS 14, ALBASUL, and BARBARASUL showed aluminum tolerance in the tested conditions.

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Reação de genótipos de soja ao alumínio em hidroponia e no solo

Cited by 3 publications

References 11 publications

Multivariate adaptability and stability of soya bean genotypes for abiotic stresses

Multivariate adaptability and stability of soya bean genotypes for abiotic stresses

TOXIDEZ DO AL EM PLÂNTULAS DE ANGICO VERMELHO (Anadenathera macrocarpa (Benth) Brenan) e PATA-DE-VACA (Bauhinia variegata L.)

A proposal for aluminum tolerance selection in white oat under hydroponic conditions

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