List the advantages of self pollination and cross pollination.
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Answers
QuestioN :
List the advantages of self pollination and cross pollination.
ANswer :
Self pollination is the transfer of pollen grains from the anther to stigma of the same flower.
Advantages of self pollination :
★ Less wastage of pollen grains.
★ In self pollination purity of the race is maintained.
★ Less chances of failure of pollination.
★ New species and varieties of plants are not produced.
Cross pollination is the transfer of pollen grains from the anther of one flower to the stigma in a flower of anther plant of same type.
Advantages of cross pollination :
★ By cross pollination, the developed progeny is stronger and healthier.
★ Seeds formed are of improved type and are viable.
★ Seeds store greater quantities of food substance like carbohydrate, fats and proteins.
★ Fruits produced are bigger in size and of better quality.
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Answer:
The Advantages of Self-pollination-
•Much surer in bisexual flowers where stamens and carpels mature simultaneously.
•Indefinite preservation of parental characters.
•No wastage of pollen grains.
•Flowers are not required to be showy and large.
•Nectar and scent are not required to be produced by flowers.
The Advantages of Cross-pollination-
•Offsprings produced are healthier.
•New varieties can be produced through cross-pollination of two varieties of the same species or two species.
•Seeds that are produced are abundant and viable.
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