Williams pear (Pyrus communis L.) productivity and fruit quality, grafted onto different rootstocks. [abstract of poster]

The experimental design used was randomized blocks with six treatments, each composed of six plants, with four replications.
The experimental design used was randomized blocks with six treatments, each composed of six plants, with four replications.
Global climate change is modifying adaptation of different fruit species. Pear culture is one of them, therefore, having a cultivar that adapts to these changes is of real importance. With the induction of mutations, it is intended to generate variability and improve the adaptation of "Early Bon Chrétien" pear to different production regions, modifying aspects such as chilling requirements, flowering time, harvest date, fruit size, and resistance to diseases.
A selection of eleven microsatellite markers (SSRs) reported for fingerprinting germplasm collections of Pyrus spp. was used to genotype a collection of cultivars and rootstocks.
Pear is a fruit of great importance for human nutrition due to the organoleptic characteristics and nutritional composition. Its cultivation in Uruguay generally uses rootstocks for adaptation to the soil, productiveness and precociousness, but rootstock selection may also influence fruit quality, with the ability to change its chemical composition.
Cacopsylla bidens (Sulc, 1907), is one of the key pests of pear, belonging to the superfamily Psylloidea. Its management has been based on broad-spectrum insecticides, which causes the appearance of resistance and the disappearance of the population of the natural controllers. The need to reduce the use of insecticides is growing.
Pear decline (PD) caused by "Candidatus Phytoplasma pyri" (subgroup 16SrX-C of apple proliferation oup of phytoplasmas) is an important pear (Pyrus communis L) disease. Pear production in Uruguay is based in self-rooted Williams plants initially grafted on quince.
Pear (Pyrus communis) tends to have erratic productions in Uruguay, presenting self-incompatibility and floral inter-compatibility, with an estimated important role of parthenocarpy in Williams. Causes of variability in production are numerous, being the variation of rate in pollination a determining factor. The objective of this work was to characterize reproductive biology and evaluate genetic compatibility of cultivars "Abate Fetel" and "Williams" with other pollen sources, for Uruguayan agroclimatic conditions.
Pear (Pyrus communis) tends to have erratic productions in Uruguay, presenting self-incompatibility and floral inter-compatibility, with an estimated important role of parthenocarpy in Williams. Causes of variability in production are numerous, being the variation of rate in pollination a determining factor. The objective of this work was to characterize reproductive biology and evaluate genetic compatibility of cultivars "Abate Fetel" and "Williams" with other pollen sources, for Uruguayan agroclimatic conditions.
Pear (Pyrus communis) has good adaptation in Southern Uruguay, but climatic factors not always reach desirable values for a satisfactory production. The objective of this work was to evaluate the correlation between climatic factors and the productivity of Williams cultivar on different pear rootstocks.