ISHS Acta Horticulturae 367: VI International Symposium on Pear Growing
RECENT DATA ON FERTILIZATION OF PEAR VARIETIES |
| Authors: | J. NYÉKI, M. GÖNDÖRNÉ PINTÉR, Z. SZABÓ |
| Abstract:
Fertilization of 14 pear varieties was studied from 1984 til 1989 in Nagykanizsa region, where ecological conditions, subalpin climate are very favourable for pear production. Purpose of this work was, to obtain information about tendency to parthenocarpy, ability of self-and open pollination and to determine the best variety combinations with good fertility of that 14, worldwide grown pear varieties under the ecological conditions of Hungary. Results confirm previous ones, as pears have to be concerned self sterile as the rate of fruit set was low and characterized only a few varieties. Parthenocarpy is not characteristic of any of that 14 varieties under the conditions of the study. Three open pollination groups of that 14 varieties were made, based on fertility of free standing flowers (low - fruit set rate under 4 %, medium - between 4,1 and 8 %, high - fruit set rate above 8 %). Important differences were observed between fruit set rate of varieties, and also fruit set rate of the same variety in different years. Testing 77 variety combinations, pollinizers with good and extremely good fertility were determined, and seed number of fruits of different combinations were measured. New in literature, that there is unilateral incompatibility between Passe Crassane and Packham's Triumph. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
