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Revista Brasileira de Fruticultura

Print version ISSN 0100-2945On-line version ISSN 1806-9967


TREVISAN, Renato et al. Bud flower thinning on the reduction of abortion in pear (Pyrus pyrifolia) in Pelotas region. Rev. Bras. Frutic. [online]. 2005, vol.27, n.3, pp.504-506. ISSN 0100-2945.

The commercial exploration of the pear culture in Brazil has little expression, due to the low productivity of the plants, being the internal consumption supplied by imports. The lack of adaptation and flower bud abortion, are the main problems for the development of this crop. This work had the objective to evaluate the effect of flower buds thinning on the reduction of the abortion, in Asian cultivars Nijisseiki and Shinseiki. Flower abortion was evaluated at three different times: beginning of the winter (June), spring (September) and end of spring (November) during the year of 2003. The experiment was carried out in a randomized block design with three replicates. The parameter evaluated was the percentage of flower bud abortion. Although the bud thinning has not reduced the abortion indexes in the cultivars, new studies will must be done, being able to, constitute in a cultural practice, trying to reduce the bud floral abortion which intensifies in the winter and in the beginning of the spring, in areas where the chilling hours is insufficient.

Keywords : Adaptation; temperature; pear.

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