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Revista mexicana de ciencias agrícolas
versión impresa ISSN 2007-0934
Resumen
GARCIA-HERNANDEZ, Gustavo et al. Physiological and numerical components of canola yield affected by density and sowing system. Rev. Mex. Cienc. Agríc [online]. 2022, vol.13, n.4, pp.661-673. Epub 22-Ago-2022. ISSN 2007-0934. https://doi.org/10.29312/remexca.v13i4.2927.
In the present work, the physiological and numerical components of canola yield affected by density and sowing system were evaluated. Two spring canola genotypes were evaluated: Hyola 61 (hybrid) and Bioaureo 2486 (open pollination) under three densities (50, 75 and 90 seeds m-2), during the 2019-2020 winter-spring cycle. The treatments were established under a randomized complete block design with four repetitions, in each of the two systems, FBS (flat bed system) and DRBS (double-row bed system), that were considered as environments. The FBS presented the highest yield (4.9 t ha-1) on average. Changes in seed yield were associated with a higher biomass production at maturity. Bioaureo 2486 exceeded by 7% the number of seeds obtained by Hyola 61 in the density of 90 plants m-2. The number of seeds per m2 was positively associated with the number of siliques per m2. However, the increase in plant density decreased the number of branches.
Palabras llave : Brassica napus L.; biomass; number of seeds; population density.