Abstract

WILSON GARCIA, Claudia Yanet et al. Forage accumulation, morphological composition and light interception in Triticale 118 (X Triticosecale Wittmack). Rev. Mex. Cienc. Agríc [online]. 2020, vol.11, n.spe24, pp.221-229.  Epub May 07, 2021. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v0i24.2372.

The objectives were to obtain the forage accumulation curve, morphological components and light interception to determine the optimal cutting time for green forage of Triticale 118. The study was carried out in Texcoco, State of Mexico, under an irrigation system, during the winter of the year 2012-2013 (cycle 1) and 2013-2014 (cycle 2). The harvest was carried out every seven days, starting at 43 days after sowing (dds) and until the forage accumulation decreased. The average height of 20 plants, intercepted radiation (IR), dry matter accumulation, morphological composition and leaf area index (LAI) were recorded in each harvest. In cycle 1 the maximum forage accumulation was obtained at 84 dds with a yield of 1 852 kg of DM ha-1, in the gleaning stage, an IR of 75% and a plant height of 52 cm were obtained, but due to a frost, it was not possible to continue sampling. In the case of cycle 2, the maximum forage accumulation occurred at 119 dds with a value of 8 733 kg of DM ha-1, where the optimal cutting moment was between 77 and 91 dds, when the plant reached an IR of between 85 and 86%, LAI between 2.3 and 3.2, respectively, and an average of 58 cm. In this experiment, it was established that, with the IR, LAI and height, the optimum harvest time for Triticale 118 can be defined, obtaining quality forage.

Keywords : Triticosecale Wittmack; cereals; growth; phenological stage.

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