Yield and leaf nutrient concentrations of common bean genotypes as influenced by aluminium toxicity under acidic soils

Abstract

The study was carried out to assess the effect of different concentrations of exchangeable aluminum on yield and nutrient concentrations in the leaf tissues of two common bean genotypes grown in pots on limed and unlimed acidic soils. Factorial combinations of five aluminum rates and two common bean genotypes were laid out in a completely randomized design with three replications. Yield and leaf nutrient concentrations were markedly affected by aluminium application and the magnitude of this effect depended on the genotype, on the levels of aluminium applied, and liming regimes. On average, the genotypes suffered 10.8% (new BILFA 58) and 24.5% (Roba 1) reductions in grain yield when grown on unlimed soil than limed soil. Lime application increased nutrient content of the leaf (28.5% P, 36.9% Ca, 4.91% K and 14.7% N) and reduced aluminium (56.4%) concentrations in the leaf tissue compared to limed soil. It is concluded that applying aluminum significantly decreased yield and nutrient uptake of both genotypes under both liming regimes.

Screening of Dolichos bean (Lablab purpureus (L.) Sweet) genotypes for aluminium tolerance

“…Similar findings were reported by Kushwaha et al (2017) in cowpea. Legesse et al (2017) also reported a significant decrease in plant height with aluminium treatment in common bean.…”

“…From the results obtained, it was revealed that marked negative effects of aluminium were observed at higher aluminium levels. Effect of interaction between genotypes and aluminium treatment were found to be significant as Legesse et al (2017) reported significant reductions in the pod length and yield of common bean in response to applying higher level of aluminium (100 mg Al/ kg soil), however at the lower rate (12.5 mg Al/kg soil), they observed no significant difference for all the yield components compared to the control. In agreement with the results of this study, Kushwaha et al (2017) reported a decrease in pod weight and pod yield in response to aluminium treatment in soil.…”

Fertilidad e índice de calidad del suelo de la cuenca del río San Pedro en Nayarit

“…Con respecto al K, de acuerdo a Das et al (2019), este elemento es requerido por los cultivos casi en las mismas proporciones o en algunos casos mayor que el N; no obstante, la mayoría de los agricultores solo aplican N, o N y P sin considerar o solo agregando cantidades pequeñas de fertilizante potásico. Esto concuerda con los resultados en los Cuadros 2, 3 y 4, con bajos contenidos de K y elevadas concentraciones de P. Con relación a sitios de pH ácido, Legesse et al (2017) mencionan que la acidif icación del suelo resulta en la def iciencia de nutrientes, entre ellos el K. Diversos estudios han demostrado que la disponibilidad de K es menor en suelos ácidos (Zhang et al, 2009), lo cual reduce el rendimiento de los cultivos. Por esta razón, corregir la acidez de los sitios evaluados resulta un factor importante en la asimilación de los nutrientes por los cultivos, en el caso del K, Liu et al (2020) mencionan que la adición de cal permite remover el Al de los sitios intercambiables incrementando la disponibilidad de K y otras bases intercambiables.…”

Selection of Wheat Ideotype Based on Multiple Traits using Genotype by Yield-Trait Approach

“…Therefore, statisticians and breeders are continuously putting effort to develop an effective model to select superior genotypes based on multiple traits. In this regard, initially genotype by trait (GT) analysis was proposed to understand the relationship among traits and genotypes (Yan and Rajcan 2002) and was utilized by many breeders in cereals as well as in other crops (Rubio et al 2004;Oladejo et al 2011;Legesse et al 2013;Paramesh et al 2016). However, this GT biplot model cannot show the strengths and weaknesses of a genotype, hence deprives of providing a decisive power of selection or rejection of given genotype (Yan et al 2019).…”