1.
Origin
2.
Economic
importance and Geographical Distribution
3.
Classification
1. Origin
To Return Home
The dalias are native of the high arcillo-silícea nature valleys of Mexico.
The name of "dahlia" that was given recalls it al botánico Andreas Dahl,
student of Linneo. This plant was introduced in Europe by the Spaniards with
the hope to utilize its roots carnosas with eating end, as they did it the
Aztecs, the plant barely approached that illusions culinary.
In Belgium the first plants of character were obtained ornamental with
double and large flowers, these plants quickly spread for all the continent,
being them preferred of the cut of the queen Victory. On the contrary, two
centuries of cultivation, selection and hybridizations have become it one of
the species ornamentales that offer greater diversity of sizes, forms and
color of the flowers.
2.
Economic importance and Geographical Distribution
To Return Home
The use of the dalias in gardening and cut flower due above all to the
beauty of its flower, so much individually as in group. The dalia
constitutes a flower of average resistance, being utilized fundamentally in
floral arrangements of certain quality. In cut flower the most demanded one
is the dalia cactus, followed by the liliputiense; therefore they have a
good conservation in flower pot. Currently the dalias enanas are the most
demanded for the decoration of solid.
The dalias are notable by:
By its inflorescencia in chapter.
Its tubérculo (roots tuberosas).
It plants heliófila.
3. Classification
To Return Home
*Flower of cactus arched: varieties of double flowers with the lígulas
rolled up and arched toward the center of the chapter. *Flower of cactus
straightened up: understands the varieties of double flower, with the
lígulas that maintain its position straightened up in the chapter. *Semicactus:
double flowers; of lígulas less rolled up that in the two previous types. *Flower
of peonía: large double flowers, of irregular petals and they curl that they
leave visible the center of the flower; the disposition of the liguladas
communicate al chapter of the flower of peonía. *Decorative: varieties of
double flower, with the lígulas arranged regularly in line concéntrica and
with their extreme of form acuminada. All the colors. Examples: "Napoli" and
"Cream" (dark salmon), "Peau Rouge" (rojo).. *Decorative irregular: the
chapters present the lígulas arranged of more irregular way than those of
previous type. *Flower in ball: of cultivation limited and firm and very
double chapters, almost esféricos. The flowers are in form of globe, the
round petals and rolled up cylindrical, and the stems straightened up reach
to 1,50 m of height. Flourishes abundantly. *Flower of anémona: the chapters
of this type recall to the flowers of that species ornamental. *Simple
flower: the chapters of this type do not present any duplicatura. Their
flowers are of long petals and diverse colors, varieties that are employed
for borduras in parterres and to form groups among the lawn. *Double flowers:
not very full, double chapters and that do not present you form typical
defined. *Flowers of necklace: the chapters of this type present a circle of
lígulas medium around the disk, shorter than the lígulas radial and
generally of another color. *Flowers liliput: chapters esféricos of very
small size, lígulas short or sawed (in nest of bees). Examples: "Atoll"
(red). *Flowers miniaturas: varieties or whose type chapters are equals in
their form and disposition to the decorative, but of very small size.
