Lentil plays an important role for food and nutritional security. It is a sustainable source of protein, zinc, iron, prebiotic carbohydrates, and diverse health-promoting nutrients. This crop is widely cultivated in semi-arid marginal areas and exposed to various environmental stressors. Drought stress is the major abiotic stress that causes serious effects on lentil growth and development. Thus, it is imperative to set up innovative and sustainable solutions to reduce the adverse effects of drought on lentil crop. In this review, the agro-morphological, physiological, and biochemical effects of drought on lentil were highlighted. Furthermore, breeding and agronomic interventions to improve lentil performance in drought-prone environments were also discussed. Overall, drought disturbs lentil germination, photosynthesis, water relations, shoot and root growth, thereby reducing final yield. Conventional breeding programs have identified several sources of drought tolerance; however, modern biotechnological tools could be adopted to decipher the genetic architecture of drought tolerance in lentil to accelerate the genetic progress. Cost-affordable and eco-friendly agronomic practices may also contribute to minimize the negative consequences of drought stress. Smart exploitation of breeding approaches and agronomic practices could help overcome drought, improve lentil productivity, and increase the profitability of farmers in dry areas.
Transitioning to conservation agriculture is proving to be a better alternative and could become the norm in the future. Morocco, geographically located in a hot spot, is much more vulnerable to the hazards of climate change and the advantages of conservation agriculture remain a good compromise to ensure sustainable agricultural production. However, the lack of sufficient knowledge about this agricultural technology could be a hindrance and thus create mistrust among farmers. Therefore, the objective of our study is to evaluate the performance of a collection of chickpeas in each tillage system to identify genotypes that can be integrated into breeding programs for adaptation to conservation agriculture. Our study shows no significant effect of tillage on grain yield. Chlorophyll content and pod number made the strongest direct and positive contributions to yield for conventional and no-till, respectively. Nine genotypes including two checks (C1 and C2) were selected in both systems through MGIDI (multi-trait genotype–ideotype distance index) analysis. These genotypes would be potential candidates for breeding programs for adaptation to no-till because of their plasticity to reproduce acceptable yields in both till systems.
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.
16 October 2024 in Biocatalysis and Agricultural Biotechnology