There are currently no active references in this article.
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:-
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.