Effects of seed size and aging on field performance of lentil (Lens culinaris Medik.) under different irrigation treatments



A sub-sample of lentil (Lens culinaris ‘Kimia’) seeds was kept as bulk (S1) and another sample was separated to large (S2) and small (S3) seeds. A sub-sample of each size was kept as control or high vigor seed lot (A1) and the two other sub-samples were artificially aged for 2 and 4 days (A2 and A3, respectively). Field performance of these seeds was evaluated during 2011 and 2012. Yield components and grain yield of lentil decreased with decreasing water availability. The highest yield components (except 1000 grain weight) and grain yield per unit area were obtained by plants from large seeds. The superiority of plants from large seeds in grain yield was more evident under limited irrigations than under well watering. Seed aging resulted in poor stand establishment and consequently low grain yield per unit area. Plants from aged large seeds showed the lowest reduction in grain yield per unit area, compared with those from aged small and bulk seeds. It seems that cultivation of large seeds somehow can reduce the deleterious effects of drought stress and seed aging on grain yield per unit area of lentil.


lens culinaris; lentils; crop yield; yields; seeds; seed size; seed characteristics; drought stress; irrigation; watering;aging

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DOI: http://dx.doi.org/10.14720/aas.2014.103.2.1


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