ISHS Acta Horticulturae 445: IV International Symposium on Hazelnut
TESTING COMPATIBILITY OF HAZELNUT CROSSES USING FLUORESCENSE MICROSCOPY |
| Author: | S.A. Mehlenbacher |
| Abstract:
Incompatibility in the European hazelnut (Corylus avellana L.) is of the sporophytic type and is controlled by a single locus with multiple alleles. Compatibility is an important consideration in planning crosses in a breeding program and in choosing pollinizers for orchard planting. The compatibility of crosses can be determined in less than 24 hours using female inflorescences from bagged branches, pollen stored in a freezer, and fluorescence microscopy. Other researchers have had difficulty using this method. Inconclusive results are most commonly due to the use of old or previously pollinated female inflorescences, too much or too little moisture in the Petri dish, or inviable pollen. Reactions of female inflorescences of a few cultivars are typically poor, but most cultivars give a reaction which can be clearly classified. | |
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