Magnolia acuminata hybrids

TSO logo

Sponsor this page

For information about how you could sponsor this page, see How You Can Help

Credits

New article for Trees and Shrubs Online.

Recommended citation
'Magnolia acuminata hybrids' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/magnolia/magnolia-acuminata-hybrids/). Accessed 2019-12-06.

Genus

Glossary

hybrid
Plant originating from the cross-fertilisation of genetically distinct individuals (e.g. two species or two subspecies).
pollen
Small grains that contain the male reproductive cells. Produced in the anther.
precocious
The production of flowers/inflorescences prior to leaf emergence. (Cf. coetaneous serotinous.)
abaxial
(especially of surface of a leaf) Lower; facing away from the axis. (Cf. adaxial.)

References

There are currently no active references in this article.

Credits

New article for Trees and Shrubs Online.

Recommended citation
'Magnolia acuminata hybrids' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/magnolia/magnolia-acuminata-hybrids/). Accessed 2019-12-06.

NOTE FROM EDITORS: THIS IS A TEST PAGE UNDER DEVELOPMENT (Sept 2019)

Magnolia hybridisation at the Brooklyn Botanic Garden has spanned some 40 years, with the first trials being carried out by Eva Maria Sperber in 1956. Along with Sperber a small team of researchers, including Lola Koerting and Doris Stone, carried out the work at the Kitchawan Research Station, Ossining, Westchester County, New York.

What was particularly interesting about the work was that for the first time an American and Asiatic species were used in the breeding programmes. Magnolia acuminata was selected as the seed parent for the following reasons:-

  • when used as a seed parent it was anticipated that the yellow flower colour would be inherited by subsequent generations.
  • the flowering period would be midway between precocious flowering species and M. acuminata.
  • as it is exceptionally hardy, this quality would be inherited, as would its tolerance to a wide range of soil types.
  • being variable in habit, M. acuminata ranges from a large multistemmed shrub to a large tree.
  • the foliage is always a ‘clean’ green and often colours a dull bronze red on unfurling.

The Asiatic species used as pollen parents were M. liliiflora and M. denudata. M. liliiflora ‘Nigra’ was crossed with M. kobus, producing ‘Marillyn’ and will be referred to under M. liliiflora hybrids.

When hybridised with M. liliiflora, the progeny were named M. x brooklynensis in 1971. The seedlings of this cross were variable, with leaves differing in shape size and texture, while the flowers too varied in size and colour. Back crosses continued by increasing the percentage of M. acuminata in search of better yellow flower colours, potentially at the expense of flowers and foliage opening simultaneously. The other breeding programme occurring at the same time was using M. denudata as the pollen parent. This yielded excellent results, with flowers being of a good yellow colour, size, quality and quantity and significantly later than its precocious flowered parent, flowering generally before the leaves started to unfurl. This has never been given a hybrid binomial name.


Feedback

A site produced by the International Dendrology Society.

For copyright and licence information, see the Licence page.

To contact the editors: info@treesandshrubsonline.org.