Stigmatic receptivity of peach flowers submitted to heat stress Academic Article uri icon

abstract

  • Because of climatic changes, the cultivation of temperate climate plants such as peach in subtropical climates has become a challenge. In these areas, temperatures exceeding 25C often occur during the pre-flowering and flowering phases. The high temperature causes damages by acting during the early stages of pollen-pistil interaction processes. The objective of this work was to evaluate the stigmatic receptivity of peach flowers at 18C and 30C. The pollen adherence was evaluated as well as the germination and presence of pollen tubes in the transmitting tissue of the style. The genotypes responded differently to temperature. Granada, Diamante, and Sensao had a stigmatic receptivity that was less affected when flowers were exposed to the higher temperature. Most genotypes showed a reduction in the number of pistils with pollen tubes growing in the style, particularly when pollination was delayed.

published proceedings

  • ACTA SCIENTIARUM-AGRONOMY

author list (cited authors)

  • Carpenedo, S., Bassols, M., Franzon, R. C., Byrne, D. H., & da Silva, J. B.

citation count

  • 7

complete list of authors

  • Carpenedo, Silvia||Bassols, Maria do Carmo||Franzon, Rodrigo Cezar||Byrne, David Hawkins||da Silva, Joao Baptista

publication date

  • January 1, 2020 11:11 AM