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Genetic Variability for Iron, Zinc, and Protein Content in a Mediterranean Lentil Collection Grown under No-Till Conditions: Towards Biofortification under Conservation Agriculture

Rachid Aboutayeb,Aziz Baidani,Abdelmonim Zeroual,N. Benbrahim,A. Aissaoui,Hanane Ouhemi,C. Houasli,E. Mazzucotelli,A. Gadaleta,Omar Idrissi

Published 2023 in Sustainability

ABSTRACT

Biofortification is a promising and sustainable way to improve lentil nutritional value. No-till is an eco-friendly agricultural practice for sustainable agricultural production under climate change conditions. The objective of this study was to evaluate the genetic variation of lentil grain quality traits under no-till and conventional tillage systems, and to investigate the significance of tillage and genotype by tillage interaction. A Mediterranean lentil collection of 120 accessions, including landraces, advanced breeding lines, local varieties, and improved varieties was assessed for protein, iron, and zinc genetic variability under no-till and conventional tillage systems. Under no-till, substantial genetic variation for protein (19–32%), iron (17–184 mg/kg), and zinc (9–48 mg/kg) was observed, indicating the possibility of lentil biofortification under conservation agriculture. Significant effects of tillage system and genotype by tillage interaction were observed for protein and iron contents. Furthermore, significant effect of tillage system on zinc content was recorded. No-till yielded slightly higher protein and zinc content than conventional tillage. Overall, the results indicated that shifting lentil production from a conventional tillage system to a no-till system would be of interest to increase lentil nutritional value.

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