Abstract

VARGAS VAZQUEZ, Ma. Luisa Patricia; MURUAGA MARTINEZ, José Socorro; ALEJANDRE ITURBIDE, Gabriel  and  MAYEK PEREZ, Netzahualcoyotl. Phenological variability of a population of bean Patol (Phaseolus coccineus L.) native of Durango, Mexico. Rev. Mex. Cienc. Agríc [online]. 2015, vol.6, n.spe11, pp.2121-2127. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v0i11.781.

The collection of native varieties of Phaseolus coccineus L. of the National Research Institute of Forestry, Agriculture and Livestock has 798 sheltered ex situ accessions. Representing varieties of the centre and south of the country and are still needed to include those the northern territory. The plant P. coccineus L. has a mixed mating system with predominance of crosslinking so that a population can have multiple colours of seeds and the plants display different phenology. The genebank received a collection of the Ejido San José de las Corrientes, Vicente Guerrero, Durango, Mexico. Seed colour variants were defined and plated on June 25, 2010 and May 17, 2011 in Chapingo, Mexico. We recorded: photoperiod, days and accumulated temperature of seedling emergence at flowering, and days and temperature required to start flowering at the beginning of maturity. Short-cycle variants were identified, 123-144 days and long cycle of 165 days. In May plantings, the plant bloomed for 26-36 days with 13.17 and 13.19 hours of light; and plantings on June 40-56 days to 12.33 and 12.49 hours of light due to natural photoperiod decreased over time. When the growing season increases, so does the accumulation of temperature due to the increase occurring in spring and summer at this latitude. When planting in May accumulated in plants growing season, 468-719 °C, and in June 713-990 °C.

Keywords : Phaseolus coccineus L.; domesticated; plant genetic resources; plant phenology; sowing date.

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