Advertisements
Advertisements
प्रश्न
Lever mechanism of pollination is observed in
- Salvia
- Jasmine
- Bougainvillea
- Butea
उत्तर
(a) Salvia
In Salvia, when an insect visits a flower, it pushes the lower sterile anther lobe due to which the upper fertile anther lobe bends down. The anther lobe comes in contact with the rear of the insect's body where the pollen grains get attached. When the same insect visits another flower with a mature gynoecium, the pollen grains are picked up by the receptive stigma. This process of pollination is called the lever mechanism.
APPEARS IN
संबंधित प्रश्न
Name the part of the flower which the tassels of the corn- cob represent.
Name of the part of the ovary which gives rise to:
Fruit ______
Describe the advantages and disadvantages of cross-pollination to the plant.
Write different modes of pollination in detail with suitable examples.
Both chasmogamous and cleistogamous flowers are present in ______.
Which of the following is not a water pollinated plant?
Which of these is a condition that makes flowers invariably autogamous?
Autogamy can occur in a chasmogamous flower if ______.
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
Name the following:
Aquatic plants which are anemophilous.