Why are flowers not black in colour?
Is it possible the Black colour flower Sunlight is usually known as white light, Which is a combination of all the colours? When sunlight shines on an object, some of the light is absorbed, whereas the remaining light is reflected by the object. This reflected light gives the colour for that object. Most flowers in nature are varyingly and brightly coloured. the colour of a flower depends on the absorption and reflection of a certain colour by the petals of that flower. most of the plant parts including flower petals contain various pigments such as chlorophyll, carotene anthocyanin etc.
These pigments, depending on their concentration, absorb a certain wavelength of white light, and reflect the other wavelengths, which in turn gives the colour to a plant part. The red rose petals contain anthocyanins, which reflect mostly the red colour with a little blue or violet colour, thus giving the red colour to the rose petals.
the white flower may have the pigments or air in the petals, which reflect the entire white light shining on them and thus giving the white colour. The black colour is just an opposite phenomenon to white colour.
In this case, the object (flower petal) has to absorb the entire white light shining on it and thus giving the black colour to that object. The brightly coloured flower is an essential part of most plants since they have to attract the pollinators. It is rare to have a black colour flower in nature. Pollination is an essential process in a plant’s, life cycle, since its reproduction depends on this. process
Insects such as bees, butterflies, moths, beetles and flies are well-known pollinators. The brightly coloured flowers attract the insect pollinators, which ensure their eventual fruits and seeds set. Moths are active during the night time, and hence most of the night-blooming flowers which are pollinated by moths produce white or pale coloured flowers.
Thus the flower colours, although they are not the only factor in the pollination process, have a long co-evolutionary relationship with their insect pollinators, and hence most flowers are varyingly coloured, but not black.
In addition, there are other factors determining the colour of the flowers.
There is a lot of physics and chemistry involved in flowering and colouration of flowers.
Visual and chemical stimuli are provided by the flowers to the pollinators like bees. Flowers have to be essentially in colours other than black.? Black objects absorb and retain heat? Hence, flowers, if black, will wither soon after sunrise.? Essentially the pollen will have to be kept cool during the daytime, at least for 8 hours for viable pollination.?
Since most of the flowers directly face the sun at least for a few hours, stresses like rise in temperature, photosynthetic oxygen surge and? fluid rise due to capillary pressure will adversely affect the texture, composition and longevity of flowers.?? That is why Black colour flower does not exist in nature? It is a natural adaptation.