... into the muddy water below. Pollen viability is often considered to be an important factor that influences seed or fruit production [13,15-18]. Here, away from nibbling insects, the fruit starts developing into a spongy berry that contains masses of seeds; in fact up to 2 000 seeds may be stored in each fruit. NCERT DC Pandey Sunil Batra HC Verma Pradeep Errorless. The family contains five genera with about 70 known species. Lotus plants are among the few species of plants that can regulate the temperature of their flowers within an optimal range to attract cold-blooded insects for pollination. After pollination has taken place, the stem of the water lily starts recoiling slowly, bringing the flower underwater. Generally lotus refers to the water lily of India or the plant depicted in sacred art and stories, while the water lily is more often used by naturalists. Pollination is simply the transfer of pollen from the anther to the stigma. American lotus, water-chinquapin, yellow lotus. Stems: Rhizomes, horizontal, to 50 feet long, rooted in mud; slender, elongated, 1/4 to 1/3 inch in diameter, with terminal portions later in growing season much enlarged, thick, banana-like. When the pollen reaches an egg cell, it causes the cell to divide. Seed set after artificial pollination in four water lotus crosses and in emasculated flowers of each cultivar under open-pollination conditions. Many factors affect seed set of angiosperms. Examples of water pollinated floweres are . NCERT P Bahadur IIT-JEE Previous Year Narendra Awasthi MS Chauhan. With its petals spread wide to reveal a crown of brilliant yellow stamens, the lotus (Nelumbo nucifera) is a symbol of serenity and purity throughout Asia. Water lilies are rooted in soil in bodies of water, with leaves and flowers floating on or emergent from the surface. Nymphaeaceae / ˌ n ɪ m f iː ˈ eɪ s iː / is a family of flowering plants, commonly called water lilies.They live as rhizomatous aquatic herbs in temperate and tropical climates around the world. Physics. Books. Facts About the Indian Lotus Flower. Chemistry. Pollen that reaches the stigma grows down through pollen tubes to the ovules, or tiny egg cells, inside the ovary. The USDA male was bred from an open pollinated seedling of a wild American hop developed at Wye College, England. The lotus is often confused with the true water lilies of genus Nymphaea, in particular N. caerulea, the "blue lotus".In fact, several older systems, such as the Bentham & Hooker system (which is widely used in the Indian subcontinent) refer to the lotus by its old synonym of Nymphaea nelumbo.. Examples of water pollinated floweres are . Lotus’s genetic origin stems from Eastern Gold, a Japanese hop variety dating back to the 1930s, followed by a mix of Apollo, Cascade, and a USDA male. 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