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pro vyhledávání: '"A. E. Zeilinga"'
Autor:
G. H. Kroon, A. E. Zeilinga
Publikováno v:
Euphytica. 23:345-352
A study was made of the occurrence of apomixis and heterogamy in rose rootstocks belonging to the Caninae. Of several ‘Edelcanina’-selections progenies obtained from crossings with wild roses or from self- and open pollinations were analysed morp
Autor:
A. E. Zeilinga
Publikováno v:
Euphytica. 11:126-136
The production of Begonia semperflorens varieties has recently concentrated on the F1 types, because of their free-flowering habit, uniformity and reduced sensitivity to adverse conditions. As many of the F1 varieties are sterile, it was supposed tha
Autor:
A. E. Zeilinga
Publikováno v:
Euphytica. 18:178-182
In a series of hybrids from inter alia Rosa canina x Rosa pendulina ‘Everest’ a plant with 77 chromosomes was found among some hybrids with the expected number of 49 chromosomes. This increased number is due to the occurrence of chromosome doubli
Publikováno v:
Euphytica. 8:245-251
In 1949 at least one of the Jucunda strawberry clones selected in the Netherlands was found to have a strong tendency to bad fruit setting, causing malformed fruits, “nubbins”, and resulting in entire or partial crop failure. This phenomenon was
Autor:
A. E. Zeilinga, H. P. Schouten
Publikováno v:
Euphytica. 17:252-264
As part of a breeding programme for polyploid tulips, chromosome counts have been made on about 600 tulip varieties in the past 10 years. Four tetraploid and 81 triploid varieties were found.