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Thursday 19 September 2013

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Activities apparently require high body temperatures, because the beetles raise their temperature by a kind of “shivering” that involves heat-generating contractions of their flight muscles. However, the energy cost of this activity inside the floral chamber is some 2-4 times less than it would be outside, despite a chamber temperature only 4°C warmer than the outside air. While many non-thermoregulatory flowers offer energy in the form of nectar, starch or pollen to their insect visitors, thermoregulatory flowers can offer energy directly as heat. In return, the beetles transfer pollen each day from one flower to the next.

Temperature regulation is also important for proper floral development and pollination success. Artificially-enforced low temperatures reduce fertilization and seed set in thermoregulatory Nelumbo nucifera (Li and Huang, 2009). In vitro pollen germination rate and pollen tube growth rate in Symplocarpus renifolius are optimal at 23 oC, which is the regulated temperature, and decrease so steeply at higher and lower temperatures that pollination would be impossible at natural ambient temperature (Seymour et al., 2009). However, it is likely that the temperature sensitivities of developmental features have evolved in response to the primary thermal stability of the flowers, rather than vice versa. While many non-thermoregulatory flowers offer energy in the form of nectar, starch or pollen to their insect visitors, thermoregulatory flowers can offer energy directly as heat. In return, the beetles transfer pollen each day from one flower to the next.
Temperature regulation is also important for proper floral development and pollination success. Artificially-enforced low temperatures reduce fertilization and seed set in thermoregulatory Nelumbo nucifera (Li and Huang, 2009). In vitro pollen germination rate and pollen tube growth rate in Symplocarpus renifolius are optimal at 23 oC, which is the regulated temperature, and decrease so steeply at higher and lower temperatures that pollination would be impossible at natural ambient temperature (Seymour et al., 2009). However, it is likely that the temperature sensitivities of developmental features have evolved in response to the primary thermal stability of the flowers, rather than vice versa. Flowers are used in making sweet smelling hair oil. They are strung into garlands and with certain people it is a fashion to wear sweet smelling garlands in the evening. Flowers are offered to gods and goddesses. Some rich people spread them near about their bed at night.
A lover offers flowers to his beloved as a token of his sweet and pure love for her. Women love to hang them in their coiffeurs to look more attractive. Some gentlemen hung them in the button-holes of their coats.
The late Pt. Nehru always hung a red rose in the buttonhole of his Achkin. The bee extracts honey from flowers. Honey is a tonic and a great purifier of blood. A bridegroom garlands his bride and she also does so in return at the time of their first meeting just before the actual marriage ceremony.
We shower petals of flowers upon our revered leaders when they happen to visit our city. When a great man dies, his dead body is laden with wreaths of flowers. People shower flowers upon his bier as it is carried through the bazars and streets as a mark of their love and respect for him.

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