Significance of Cross-pollination
When pollen grains are transferred from the anther to the stigma of flowers of the same species of a separate plant is called cross-pollination. It…
Biology
Significance of Self-pollination
Pollination is the transfer of pollen grains from the anther of one flower to the stigma of the same or another flower. When pollen grains…
What is Pollination?
Every fertile stamen contains an anther. Inside the anther develops the pollen grains. At one time the anther bursts and pollen grains are carried and…
Flowers According to Presence of Bracts
The persistence of flower subtending bracts. Bracts are specialized plant structures that serve varied functions such as attracting pollinators and protecting inflorescences or flower structures.…
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.…
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…
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…
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…
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…
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…
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