View allAll Photos Tagged Girassol!
Eu sei que a foto em si não é nada demais, tanto que eu nem ia postá-la. Mas olhando-a com um pouco mais de sensibilidade, até que ela diz muita coisa.
Afinal, quem é que nunca se sentiu como este girassól?
Seu nome científico é Helianthus annus - o que explica sua imponência e seu porte majestoso: a palavra Helianthus significa "flor do sol". Além de linda, a planta é utilíssima, pois do girassol tudo é aproveitado - desde as sementes, até as flores e os ramos.
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The Sunflower (Helianthus annus).
The sunflower (Helianthus annuus) is an annual plant in the family Asteraceae, with a large flower head (inflorescence). The stem of the flower can grow up to 3 metres tall, with the flower head reaching 30 cm in diameter. The term "sunflower" is also used to refer to all plants of the genus Helianthus, many of which are perennial plants.
Sunflowers in the bud stage exhibit heliotropism. At sunrise, the faces of most sunflowers are turned towards the east. Over the course of the day, they move to track the sun from east to west, while at night they return to an eastward orientation. This motion is performed by motor cells in the pulvinus, a flexible segment of the stem just below the bud. As the bud stage ends, the stem stiffens and the blooming stage is reached.
Sunflowers in the blooming stage are not heliotropic anymore. The stem has frozen, typically in an eastward orientation. The stem and leaves lose their green color.
The wild sunflower typically does not turn toward the sun; its flowering heads may face many directions when mature. However, the leaves typically exhibit some heliotropism.
Cultivation and uses
A sunflower farm near Mysore, India.
Sunflower heads solds as snacks in China.
Sunflowers are native to the Americas, and were domesticated around 1000 B.C. Francisco Pizarro found the Inca subjects venerating the sunflower as an image of their sun god. Gold images of the flower, as well as seeds, were taken back to Europe early in the 16th century. Helianthus is the Greek word for "sunflower".
To grow well, sunflowers need full sun. They grow best in fertile, moist, well-drained soil with a lot of mulch. In commercial planting, seeds are planted 45 cm (1.5') apart and 2.5 cm (1") deep.
Sunflower "whole seed" (fruit) is sold as snacks and can be processed into a peanut butter alternative, Sunbutter, especially in China, the United States, the Middle East and Europe. In Russia it is probably the most wide spread snack. It is also sold as food for birds and can be used directly in cooking and salads.
Sunflower oil, extracted from the seeds, is used for cooking (but is less cardiohealthy than olive oil), as a carrier oil and to produce biodiesel, for which it is less expensive than the olive product.
The cake remaining after the seeds have been processed for oil is used as a livestock feed. Some recently developed cultivars have drooping heads. These cultivars are less attractive to gardeners growing the flowers as ornamental plants, but appeal to farmers, because they reduce bird damage and losses from some plant diseases. There are also new breeds of sunflowers which are transgenic, so that they are resistant to some diseases.[citation needed] Sunflowers also produce latex and are the subject of experiments to improve their suitability as an alternative crop for producing hypoallergenic rubber. Additionally, the stem of a dead sunflower can dry out open wounds.[citation needed]
For farmers not intending to grow it, the sunflower is considered a noxious weed. The wild variety will grow unwanted in corn and soybean fields which can have a negative impact on yields.
Greek myth
In Greek mythology, a girl named Clytie fell in love with the sun god Apollo, and would do nothing but watch his chariot move across the sky. After nine days, she was transformed into a sunflower. However, the word "sunflower" and its cognates existed long before Helianthus annuus was brought to Europe, and it is thought that the myth (which is mentioned in Ovid's poem Metamorphoses) actually refers to heliotrope or marigold.
This text is from the Wikipedia adress: en.wikipedia.org/wiki/Sunflower
Um texto em português:
Girassol (Helianthus annuus) é uma planta anual da família das Asteraceae, de flores grandes - aprox. 30 cm de diâmetro - cujo caule pode atingir até 3 m de altura, notável por "olhar" para Sol, comportamento vegetal conhecido como heliotropismo.
Os girassóis sâo plantas originárias das Américas, domesticadas por volta do ano 1000 a.C.. Francisco Pizarro encontrou diversos objetos incas e imagens moldadas em ouro da planta que fazem referência aos girassóis como seu deus do Sol
Segundo a mitologia grega, certa moça, chamada Clytia, apaixonou-se pelo deus do Sol Apolo e sem poder fazer nada, observava-o cruzar o céu. Após nove dias, ela foi transformada em um girassol.
As flores refletem bem o que é o amor.
Quem deseja possuir uma flor, irá vê-la murchar.
Mas quem olhar uma flor no campo, terá esta beleza para sempre.
Mesmo na escuridão
existem estrelas que brilham.
Mesmo quando tudo parece apagado
existem momentos suaves e de melodia. Por vezes, o desabrochar duma flor
pode ser um momento mais profundo
que toda a Primavera.
Há segundos
que valem ouro.
Há dias mais tristes
que noites de trovoada.
São momentos...
Longos ou curtos.
Apaixonantes ou gélidos.
São momentos...
Perdidos ou esquecidos.
Recordados ou adormecidos.
Momentos alegres ou de amargura.
Momentos felizes ou de solidão.
São momentos...
E devem viver-se intensamente. ......
Copyright © 2020.Rita Barreto. All rights reserved.
REPRODUÇÃO PROIBIDA - ® Todos os direitos reservados.
Copyright © 2009.Rita Barreto. All rights reserved.
REPRODUÇÃO PROIBIDA - ® Todos os direitos reservados.