Abstract
Two-thirds of the world’s population are at risk of deficiency in one or more essential mineral elements. The high concentrations of essential mineral elements in pulse seeds are fundamentally important to human and animal nutrition. In this study, seeds of 25 genotypes of faba bean (12 low-tannin and 13 normal-tannin genotypes) were evaluated for mineral nutrients and protein content in three locations in Western Canada during 2016–2017. Seed mineral concentrations were examined by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and the protein content was determined by Near-Infrared (NIR) spectroscopy. Location and year (site-year) effects were significant for all studied minerals, with less effect for calcium (Ca) and protein content. Genotype by environment interactions were found to be small for magnesium (Mg), cobalt (Co), Ca, zinc (Zn), and protein content. Higher seed concentrations of Ca, manganese (Mn), Mg, and cadmium (Cd) were observed for low-tannin genotypes compared to tannin-containing genotypes. The protein content was 1.9% higher in low-tannin compared to tannin-containing genotypes. The high estimated heritability for concentrations of seed Mg, Ca, Mn, potassium (K), sulphur (S), and protein content in this species suggests that genetic improvement is possible for mineral elements.
Highlights
Seeds of faba bean (Vicia faba L.) are a good source of protein, energy, and fiber, and the crop is widely grown for food and feed [1]
Our results showed that faba bean seeds had generous amounts of K
Our results revealed that the seed mineral concentrations in faba bean are by mineral numerous factors, reported such as environmental
Summary
Seeds of faba bean (Vicia faba L.) are a good source of protein, energy, and fiber, and the crop is widely grown for food and feed [1]. The protein content of faba bean ranges from 24% to 35% of the seed dry matter [2], with an average of 29% [3], making it the most protein-rich major pulse crop [4]. It is relatively high in lysine, which is an essential amino acid in human and monogastric diets [5]. Faba bean is used as a source of protein in human diets, as fodder and a forage crop for animals, and for its excellent ability to fix atmospheric nitrogen. China is the major producer of faba bean, followed by Ethiopia and Australia
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