Number of chromosomes of the cultivars and breeds developed in Estonia
1998
Ounmaa, A. | Remmelg, H.
Chromosome numbers of twenty four breeds of Prunus domestica L. and four sedlings of. P. cerasifera Ehrh. were analysed. All cultivars except one - 'Kressu', were hexaploid. 'Kressu' is derived from the crossing 'La Crescent' (2n=16)x 'Suhkruploom' (2n=48) in 1969 by Eevi and Artur Jaama and it is a tetraploid. The seedlings of myrobalaan analysed were all diploid, but two of them both had an extra chromosome. Fruits of these seedlings with B-chromosomes are greater and they are fruitful
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