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POLLINATION "Pollination is defined as the process of transfer of pollen grains from anther to the stigma of the same flower or of different flower of the same species. Hypohydrophily :Plants which are pollinated inside the water e.g.Zostera, Ceratophyllum, Najas, etc. ) In Vallisneria pollination takes place by the agency of:A. WaterB. Secondary School. This refers to the plant's ribbon-like appearance. Ask your question. Did You Know? Science. 1. Sexual reproduction takes place in early summer, when female flowers are fertilized by drifting pollen and develop into seed-bearing shoots. In Valilisneria, the female flower appear on the surface of the water as it have a long stalk. Entirely submerged pollination takes place in most genera. BirdsD. In Water lily pollination takes place through wind or insect, female flower imerges above the surface of water and gets pollinated. Aerial surface pollination, whereby the pollen as well as the styles remain dry, is shown by Enhalus acoroides (L. f 1. Ans: In Vallisneria pollination is through hdrophilly ie through water. Join now. Epihydrophily :Plants which are pollinated outside the water. 8 points What is cross pollination? Part of its scientific name, Zostera, means “belt” in Greek. Zostera pollen is elongated. - 872561 1. The main such adaptations are colour, nectar and scent. Pollination types: Fig: Types of Pollination. 0 Thank You. This type of pollination takes place through the agency of insects. While mammals and birds also transfer pollen, insects are responsible for most of the pollination that takes place. WindC. The styles remain in this position until pollination takes place. Log in. Related Questions: Why can't DNA polymerase be used in PCR. Log in. ANSWER. It takes time to find another receptive flower without dedicated pollinator-transport, so eelgrass pollen has the same density as water, allowing it to drift in the current for days without floating or sinking. Zostera marina, stage 1 : (a) lateral view of inflorescence with erected styles; (b,c) details of pistils with erected styles. Many of these scents often smell like the flowers that they are attracted to and visit. What is cross pollination? e.g.Vallisneria (Ribbon weed). The pollen grains released by the male flower reaches to female flower for fertilisation through water currents. Insects Get the answers you need, now! Many butterflies produce scents that attract the opposite sex. Adaptations to this type of pollination are the confervoid pollen ... (DUDLEY 1893) and Zostera, but in these genera completely submerged pollination occurs just as oRen. The insect-loving flower possesses various adaptations by which they attract insects and use them as carriers of pollen grains for the purpose of cross-pollination. Join now. It is of general occurrence among plants. Biotic agents (a) Entomophily : When pollination is brought about by the agency of insects, it is known as entomophily or insect pollination. 206 It often happens that the style of this pistil stops bending at a point half way through the process and cannot get out of the spatha. The scent of these butterfly-pollinated flowers might have evolved as an adaptation that made use of the existing attractiveness of these scents. The shoots eventually break off, float to the surface and release their seeds. That takes place. main such adaptations are colour, nectar and scent of. Place by the agency of zostera pollination takes place by the agency of fertilized by drifting pollen and develop into seed-bearing shoots a stalk. Of: A. 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