Preliminary results of pecan: floral behavior in the north-central region of Buenos Aires

Authors

  • Marcela Patricia Borda Facultad de Ciencias Agrarias. Universidad Nacional de Lomas de Zamora. Camino de Cintura y Juan XXIII (1836) Llavallol. Buenos Aires. Argentina. IIPAAS. Instituto de Investigación sobre Producción Agropecuaria, Ambiente y Salud
  • María de los Ángeles Pescie Facultad de Ciencias Agrarias. Universidad Nacional de Lomas de Zamora. Camino de Cintura y Juan XXIII (1836) Llavallol. Buenos Aires. Argentina. IIPAAS. Instituto de Investigación sobre Producción Agropecuaria, Ambiente y Salud.
  • Andrés Mollá Kralj Facultad de Ciencias Agrarias. Universidad Nacional de Lomas de Zamora. Camino de Cintura y Juan XXIII (1836) Llavallol. Buenos Aires. Argentina. IIPAAS. Instituto de Investigación sobre Producción Agropecuaria, Ambiente y Salud.
  • Elizabeth Otero Facultad de Ciencias Agrarias. Universidad Nacional de Lomas de Zamora. Camino de Cintura y Juan XXIII (1836) Llavallol. Buenos Aires. Argentina. IIPAAS. Instituto de Investigación sobre Producción Agropecuaria, Ambiente y Salud
  • César Gabriel López Facultad de Ciencias Agrarias. Universidad Nacional de Lomas de Zamora. Camino de Cintura y Juan XXIII (1836) Llavallol. Buenos Aires. Argentina. IIPAAS. Instituto de Investigación sobre Producción Agropecuaria, Ambiente y Salud

DOI:

https://doi.org/10.24215/16699513e047

Keywords:

Carya illinoinensis, flowering, pollination, warm temperate regions, young trees

Abstract

Pecan tree [Carya illinoinensis (Wangenh.) K. Koch] is grown in Argentina since the mid-twentieth century. Due to dry fruits enlarged commercial interest in the last years, the pecan acreage increased significantly lately in our country. Pecan is a monoecious tree exhibiting dichogamy. The knowledge of floral behavior is essential for cultivar selection in less traditional areas, such as the north-central zone of Buenos Aires. The objective of this study was to establish moments of appearance and senescence of male and female flowers in young pecan trees, grown in the mentioned region. The trial was located in Navarro (Bs. As.), in a commercial plantation. The moment of appearance and senescence of the female and male flowers in four pecan cultivars, 'Stuart', 'Desirable', 'Shoshoni' and 'Pawnee', were determined, over three consecutive years. Preliminary results showed that both types of flowers were present for an average period of 10 weeks, from late September to early December. All cultivars showed bloom overlapping. This knowledge provides useful information to growers for cultivar selection, agrochemicals applications to avoid flower damages, and to obtain better fruit quality and yield. The information will also allow adjusting periods of pollen shedding and stigma receptivity considered key moments for the production of this crop.

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Published

2020-12-07

How to Cite

Borda, M. P. ., Pescie, M. de los Ángeles, Mollá Kralj, A. ., Otero, E. ., & López, C. G. . (2020). Preliminary results of pecan: floral behavior in the north-central region of Buenos Aires. Journal of the Agronomy College, 119(2), 047. https://doi.org/10.24215/16699513e047