Question

Write in brief:
As a senior biology student you have been asked to demonstrate to the students of secondary level in your school, the procedure (s) that shall ensure cross - pollination in a hermaphrodite flower. List the different steps that you would suggest and provide reasons for each of the item.

Answer 1

a) Steps that ensures cross pollination in hermaphrodite flower are as follows:

• Emasculation: This is the method of removal of anther to prevent self pollination.
• Bagging: This is the method of covering of emasculated flower by bags of butter paper to avoid contamination with foreign pollen.
• Tagging: In this method emasculated and bagged flowers are tagged with date of emasculation and pollination, name of female and male flower for keeping proper record.
• Pollination: Dusting of desired mature pollen grains on desired stigma with the help of brush.
• Rebagging: After pollination, flowers are rebagged till fruit ripening.