Biology
Flowers According to Regularity of Organ and Symmetry
According to Regularity of Organ: Regular Flower: Flowers in which the members of each whorl are similar in shape and size called regular flower. e.g.…
Plant kingdom
Biology
Different Kinds of Flower According Organ
If we examine various flowers surrounding us it will be seen that all the flowers are not alike. Like colour and smell they have many…
Biology
Different Parts of a Flower
A flower has several parts. Different parts have several functions. Taking a flower in hand we can observe its different parts. Let us see what…
Biology
Influence of Length of Daytime on Flowering of Plants
The influence of length of daytime on flowering of plants is called Photoperiodism. In 1920 Garner and Allard observed the affect of photoperiods in Maryland…
Biology
Effect of Light and Temperature on Plant Growth and Yield
We know all the fruit yielding plants like Aam, Jaam, and Boroi etc. plants are planted at almost every home in Bangladesh. It will be…
Biology
Geotropism: Growth Regulatory Substances
Movement of root is towards the earth and movement of stem is against the earth. A movement towards the earth is negative geotropism. Put a…
Biology
Phototropism: Growth regulatory Substances
The stem and branches of plants always expanded towards light but root and its branches expands against the light. Movement of stem towards light is…
Biology
Introduce Tropism
When one looks at the Banyan tree it will be seen that the branches and sub-branches are growing towards the light, but the Prop roots…
Biology
Growth Regulatory Substances of Plant
Growth Regulators There are some biochemical substances, a small amount of which regulate the growth of plants. These substances are produced in the plant bodies.…
Biology
Introduce Apical Dominance
We came to know that apical region of the stein is the ideal region of growth. During apical growth there develops young leaves and sometimes…
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