Root system variation of pulse crops at early vegetative stage

Abstract

Grain legumes known as “Pulse crops” are economically and nutritionally one of the most important crop families after cereals. Climate change and abiotic stress factors are limiting yield potential in these crops. Root system architecture, a neglected field, is promising for improved environmental adaptability and higher growth potential. Genotypes with deep and dense root system may cope better with water and nutrient limitations. This study aimed to evaluate 12 common cultivars from six different legume species. Root system architectures were evaluated under controlled conditions in a plexiglass system at the early vegetative stage. Roots were divided into four depth zones (0, 5, 10, 15> cm), and inter and intra species diversity were analysed. Significant diversity was obtained within and between the species. Bean, chickpea, and broad bean constituted deeper and dense root systems while lentil, soybean, and pea formed non-dense and shallower root systems. There was a significant correlation between earliness and early vegetative root vigour. The results of the study may provide a better understanding of the root system architectures of each species-genera. The results presented here may shed light on the selection of root traits in legume breeding programs.

Mercimekte Çimlenme ve Fide Gelişimi Üzerine Optimum PGPB- Priming Protokolünün Belirlenmesi

“…Randomly selected samples were placed on a platform and scanned in colour at 600 dpi resolution by a portable scanner (ISCAN, handheld scanner). Root images were analysed using ImageJ image analysis software [34]. The germination characteristics were calculated by equations given below: [35] (1) https://doi.org/10.35193/bseufbd.991736…”

Challenges in pea breeding for tolerance to drought: Status and prospects

“…One of the mechanisms of higher adaptability to drought is avoiding dehydration, in which the roots play an important role (Wery et al, 1994; Fang & Xiong, 2015; Table 4). In drought and nutrient deficiencies, some factors in the root system architecture (RSA), such as large and deep roots and better lateral distribution of roots, are significant adaptation features to improve crop production (Ceritoglu et al, 2020). Some RSA traits, such as root length and root dry weight, were positively correlated with grain size and yield in peas.…”

Increasing sustainability by intercropping legume crops with sugar beet under imposed water stress

“…Moreover, the values of soil available N were higher in the second season than in the first due to the decomposition of legume crop residues that benefit the subsequent crop (Arcand et al, 2014). The highest values of soil available N were found when chickpea was intercropped with sugar beet due to its ability to fix higher values of N than faba bean and lentil (Kirihetti, 2018) and to its dense rooting systems (Ceritoglu et al, 2020), in which its decomposition in the soil could have added more organic matter (Arcand et al, 2014) than faba bean and lentil.…”