The objective of this work was to determine the date of the full bloom (70% of open flowers) in a citric variety in Taquari Valley - RS, in 2003. The work was carried out in the Research Center of Fruticulture of Taquari, in an orchard with 16 years old. The variety of citrus studied was the Tobias on three rootstocks: C13, Poncirus trifoliata and orange tree Caipira, called Tobias 1, Tobias 2 e Tobias 3, respectively. The date considered the beginning of flowering was 09/01/2003. The full bloom was estimated in 07/16 to Tobias variety on C13 and Poncirus trifoliata rootstock and 07/19 on Caipira orange tree; the combination Tobias 2 showed the date of full bloom before Tobias 3; the South quadrant reduces the media of the full bloom of the Tobias orange tree on Caipira orange tree (Tobias 3).
Citrus; flowering; rootstock; quadrants
