Abstract

CASTILLO-CABRERA, Carlos et al. Growth analysis of bird’s-foot trefoil at different sowing densities. Rev. Mex. Cienc. Agríc [online]. 2023, vol.14, n.2, pp.265-276.  Epub June 19, 2023. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v14i2.3420.

The aerial part of Lotus corniculatus L. genotype 202700 of erect habit originating in Uruguay was studied, a growth analysis was performed, evaluating the variables DM yield (DMY), height with ruler (HR), height with plate (HP), yields of leaf (L), stem (S), weeds (W), dead material (DM), (L:S) ratio and intercepted radiation (IR). Immediately after the uniformity cut at 5 cm, continuous weekly cuts were made during a regrowth cycle (eight weeks) in spring. This research was carried out in ‘Predio Nuevo’ of the College of Postgraduates, Montecillo, Texcoco, State of Mexico, from April 12 to May 31, 2021. Data were analyzed with SAS, according to a completely randomized experimental design in split plots at two densities as treatments (D1= 12 000 plants ha-1 and D2= 16 000 plants ha-1) and eight repetitions for each treatment. According to the results, the treatment D2 was the one that presented the highest values 5 450 kg DM ha-1, followed by the treatment D1 with 4 315 kg DM ha-1, the intercepted radiation (%) by treatment 77% for D1 and 83% for D2, reaching the peak at 49 days (92%), the height of the plants behaved positively as the meadow developed. It is concluded that the density with the best overall behavior was D2, which showed the greatest response in terms of the variables leaf, stem, weeds, dead material (kg DM ha-1).

Keywords : dead material; IR; morphological composition; plant height; weeds.

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