Effects of different pollination treatments in genotypes of Prunus salicina Lindl.

ONTIVERO M; RADICE S; GIORDANI E; BELLINI E

INTERNATIONAL JOURNAL OF HORTICULTURAL SCIENCE

Año: 2006 p. 141 - 146

1585-0404

The low productivity in the Japanese plum (Prunus salicina LindI) is related with self-incompatibility characteristics, so other species or varieties that act as pollinators need to be present to improve fruit production. The objective of this work was to study the efficiency of pollination in different genotypes of 1'. salicina using treatments of naturaI self-pollination, cross-pollination with 1'. armeniaca cv. Giada and open pollination. These treatments were evaIuated through viability techniques and in vitro and in vivo germination of pollen grains; the growth of pollen tubes aIong the pistil was aIso observed. Genotypes used in this study showed differences for each one of the pollination treatments. Some genotypes showed signs of self-sterility and interincompatibility with 1'. armeniaca cv. Giada, while others showed partial self-fertility characteristics or pseudocompatibility. Moreover, some genotypes showed a higher affinity coefficient with cv. Giada and these will be indicating a possible intercompatibility. These studies will be an important contribution breeding and selection of intra and intercompatible genotypes to be used in commerciai orchards.