Nicotiana longiflora
Encyclopedia
Nicotiana longiflora, the Longflower Tobacco, is a species of tobacco
native to South America
that is sometimes cultivated for its tubular flower
s that emit a very sweet odor at night.
This plant has been a significant source of disease resistance in flue-cured and burley tobacco
. Some of the disease impacted by resistance from this species are: black shank, cyst nematode
, root-knot nematode
, and wildfire. The resistance form N. longiflora imparts near immunity to race 0 black shank, but no resistance to race 1. One of the varieties still in use today is 14 x L8, the second most popular burley tobacco variety in the U.S.
.
Tobacco
Tobacco is an agricultural product processed from the leaves of plants in the genus Nicotiana. It can be consumed, used as a pesticide and, in the form of nicotine tartrate, used in some medicines...
native to South America
South America
South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...
that is sometimes cultivated for its tubular flower
Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants . The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs...
s that emit a very sweet odor at night.
This plant has been a significant source of disease resistance in flue-cured and burley tobacco
Tobacco
Tobacco is an agricultural product processed from the leaves of plants in the genus Nicotiana. It can be consumed, used as a pesticide and, in the form of nicotine tartrate, used in some medicines...
. Some of the disease impacted by resistance from this species are: black shank, cyst nematode
Cyst nematode
-External links:*...
, root-knot nematode
Root-knot nematode
Root-knot nematodes are plant-parasitic nematodes from the genus Meloidogyne. They exist in soil in areas with hot climates or short winters. About 2000 plants are susceptible to infection by root-knot nematodes and they cause approximately 5% of global crop loss...
, and wildfire. The resistance form N. longiflora imparts near immunity to race 0 black shank, but no resistance to race 1. One of the varieties still in use today is 14 x L8, the second most popular burley tobacco variety in the U.S.
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
.