BOTANY

• Morphology is a branch of botany which deals with the study of external form and structure of plants.
• The hormone present in coconut water is cytokinin.
• Chemotropism means plant’s growth in response to a chemical.
• I. R-8, Aswathy, Annapurna, Jaya, Rohini, Triveni, and Karthika are the hybrid varieties of rice.
• H-97 and H-165 are the hybrid varieties of Tapioca.
• Tomatoes originated in South America and are sometimes called ‘love apples ‘.It’s scientific name is Lycopersicon esulentum.
• Phloem is a conducting tissue in plants, which is meant for the conduction of food material.
• Xylem is a vascular tissue in plants, meant for the conduction of water and mineral salts.
• Auxin is plant hormone.
• Cellulose is natural polymer occurring in the walls of plant cells.
• Sclerenchyma is a dead mechanical tissue. It gives rigidity and strength to the plants body.
• Phototropism –Tendency of plants to grow towards the source of light.
• Geotropism –Tendency of plants grow in response to the stimulus of gravity.
• Hydrotropism-Tendency of plants to grow in response to the stimulus of water.
• Gregor Johann Mendel- (1822-1884) an Australian botanist and monk formulated the basic theory of heredity.
• Mitochondria are the Power-house of a cell.
• Eucalyptuses are the most common type of trees in Australia Australians refers to eucalyptus as ‘gum trees’.
• Red data book is a collection of endangered species of wild animals and plants.
• The largest living tree is a giant sequoia called “General Sherman”. It is 274 ft tall and 103 ft round its base.
• The development of the fruit without fertilization is called parthenocarpy. E.g. orange, grape, apple.
• Alkaloid present in tea is Theine.
• The name Bougainvillea comes from Louis Antoine de Bougainville, an admiral in the French Navy who discovered the plant in Brazil in 1768.
• Alkaloid present in coffee is Caffeine.
• Cotton is known as the ‘miracle hair’
• A plant with a single leaf –Amorphophallus
• A plant propagated by leaf –Bryophyllum
• Cotton fiber is made up of Cellulose.
• Cabbage is called the ‘pride of India’
• The oldest plant on earth is ferns.
• The plant kingdom is divided into four groups.
• Pollination effected by bats is called chiropteriphyly.
• Crescograph was invented by Jagadish Chandra Bose.
• Bribal Sahni is India’s well known Palaeobtanist.
• Carrots’ are beneficial in the treatment of eczema.
• Fruit tissues of the olive tree contaiains olive oil.
• Eucalyptus leaves produces eucalyptus oil.
• Most plant drugs are alkaloids.
• When a plant bears both male and female flowers, most plant drugs are alkaloids.
• The yellow pigment present in maize is zca xanthin.          

Entomophily  :           pollinated by insects e.g. salvia, crotalaria, bougainvillea, lotus,

tube rose, roses

Anemophily   :           palliated by water e.g. maize, bamboo, pine,

Hydrophily     :           pollinated by water e.g.hydrilla, vallisneria, coconut.

Ornithopily    :           pollinated by birds e.g. silk cotton

Zoophily         :           pollinated by animals e.g. coral tree, silk cotton tree, raised, apple.