SOME CHARACTERISTICS OF YOUNG SEEDLINGS FOR PRE-SELECTION FOR PRECOCITY AND FRUIT SIZE IN PLUM BREEDING

W. Hartmann, E. Engelhorn
From over 800 plum seedlings of 26 progenies different characteristics for a pre-selection of precocity and fruit size were examined. For a correlation analysis the seedlings were divided into trees with none or only some flowers (juvenile or transitionale phase), versus trees with a high to very high flower set (adult).

A screening of young plum seedlings for precocity is possible after the second, or better after the third yeard by selection of vigorous seedlings with large leaves and many thorns. Seedlings with these characteristics had bigger fruits and were the better croppers. We found also a possitive correlation between diameter of long shoots and nodes and the fruit size. Our results with thorniness of the seedlings, which are in opposition to the results of apple and pear breeders, are discussed.

Hartmann, W. and Engelhorn, E. (1992). SOME CHARACTERISTICS OF YOUNG SEEDLINGS FOR PRE-SELECTION FOR PRECOCITY AND FRUIT SIZE IN PLUM BREEDING. Acta Hortic. 317, 125-132
DOI: 10.17660/ActaHortic.1992.317.13
https://doi.org/10.17660/ActaHortic.1992.317.13
317_13
125-132

Acta Horticulturae