Plants – Commercial herbaceous vegetable or herb plant – Mint
Plant Patent
2002-07-12
2004-01-20
Campell, Bruce R. (Department: 1661)
Plants
Commercial herbaceous vegetable or herb plant
Mint
Plant Patent
active
PP014480
ABSTRACT:
Latin name of the genus and species of the plant claimed:
Mentha×piperita.
Variety denomination: ‘McKenzie’.
FIELD OF THE INVENTION
The present invention relates to a new and distinct peppermint plant botanically known as
Mentha×piperita
. The new variety has been named ‘McKenzie’ and will be referred as such hereafter.
BACKGROUND OF THE INVENTION
The new peppermint plant of the present invention was developed in an effort to cultivate a peppermint variety exhibiting an upright growth habit, vigorous and abundant root growth, greater resistance to Spider mites (
Tetranychus urticae
), Mint rust (
Puccinia menthe
Pers) and
Verticillium wilt
(
Verticillium dahliae
and
V. albo
-
atrum
). Further, ‘McKenzie’ produces a peppermint oil that varies minimally in oil profile based on plant maturity.
The inventor explored ways of creating peppermint hybrids through conventional crosses from the ‘Black Mitcham’ (
Mentha piperita
)—not-patented—parent plants without the use of chemicals to increase ploidy. The method relied on adjusting environmental conditions to generate viable pollen. Using this method, several seedlings were generated in 1996 using two ‘Black Mitcham’ peppermint plants as parents.
The resulting selection has been under continuous evaluation at the A. M. Todd facility located in Jefferson, Oreg., since 1996 and has been asexually propagated through stem, propagules and rhizome cuttings. The resulting propagules have remained identical to the parent plant in appearance, resistance to the common diseases encountered by mint plants, peppermint oil quality and vigorous root growth.
SUMMARY OF THE INVENTION
The present invention relates to a novel peppermint plant named ‘McKenzie’ characterized by its more upright growth habit as shown by taller growth with thicker stems, when compared to commercial peppermint varieties, more abundant and vigorous root growth and resistance to Mint rust (
Puccinia menthe
Pers),
Verticillium wilt
(
Verticillium dahliae
and
V. albo
-
atrum
), and Spider mites (
Tetranychus urticae
). The peppermint oil profile of ‘McKenzie’ is also similar throughout its maturity when grown in Oregon and Washington.
A. M. Todd Company
Campell Bruce R.
Hwu June
Kramer & Amado P.C.
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