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ADVANTAGE of self

Less wastage of pollen grains

Surer form of pollination

NO need of nectar od scent

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The purity of the race is maintained.

There is no wastage of pollen grains.

Self-pollination ensures that recessive characters are eliminated.

The plants are independent of external factors or pollinating agents for pollination.Disadvantages of self-pollination:

1. The seeds are less in number.

2. It cannot produce new varieties of plants.

3. The seeds produced are weak due to the minute size of the endosperm.

4. New characters are not introduced; therefore, the resultant offspring’s immunity to diseases reduces.

Advantages of cross-pollination:

1. The newly produced plants are healthier.

2. Cross-pollination helps in the formation of new varieties.

3. The seeds are produced in abundance and are more viable.

4. The seeds germinate properly and grow into healthier plants.

5. It results in new types because cross-pollination can be carried out between two different types of the same species or even between two different species.

Disadvantages of cross-pollination:

1. There is more wastage of pollen grains.

2. Pollination may fail due to the distance barrier.

3. Cross-pollination may introduce some unwanted characters.

4. It is uneconomical for plants to produce large, aromatic, and nectar flowers to attract insects.

-Gunansh

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Advantages of self-pollination:-

1. it is much surer in such bisexual flowers where stamens and carpels mature at the same time.

2. Parental characters are preserved.

3. No wastage of pollen grains.

4. Flowers need not be large and showy.

5. Scent and nectar need not be produced in the flowers.

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Advantages of SELF POLLINATION- No wastage, no need of external agents

Disadvantages- Does not have any variations, decreases immunity.

Advantages of CROSS-POLLINATION- New variations can be there, good for long-run, healthier

Disadvantages- more wastage, bright, beautiful flowers are needed.

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SELF POLLINATION

Advantages :

no wasted of pollen grains

Flower need not be big and showy

Nectar and scent is not that important

Characteristics of parental flower remain

Disadvantages :

Does not yield variety

Weaker characteristics cannot be eliminated

CROSS POLLINATION

Advantages :

offspring is healthier

Seeds produced are abundant

New varieties may be produced

Disadvantages :

pollination might or might not happen

Depends on agents

Pollen get wasted

Flowers have to attractive by colour , scent and should be big and bright

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Advantages of self pollination:

Flower need not be attractive, no wastage of pollen grains

Disadvantages:

Does not yield new varieties, weakening of the species

Advantages of cross pollination:

New varieties are produced, the seeds produced are abundant

Disadvantages:

Wastage of pollen, some pollinating agent is always needed

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Advantages of self pollination:

race is maintained.

no wastage of pollen grains.

recessive characters are eliminated.

The plants are independent

Disadvantages of self-pollination:

The seeds are less in number.

cannot produce new varieties of plants.

The seeds produced are weak.

offspring’s immunity reduces.

Advantages of cross-pollination:

1. produces healthier plants.

2. helps in the formation of new varieties.

3. seeds are produced in abundance and are more viable.

4. seeds germinate properly and grow into healthier plants.

Disadvantages of cross-pollination:

more wastage of pollen grains.

Pollination may fail due to the distance barrier.

Cross-pollination may introduce some unwanted characters.

It is uneconomical for plants to produce large, aromatic, and nectar flowers to attract insects.

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Advantage of cross pollination:-

Offsprings are healthier

The seeds are abundant and viable

New varieties can also be produced

Disadvantage of cross pollination:-

Pollen grains are wasted in more significant quantities

Because of the distance barrier, pollination may fail.

Cross-pollination has the potential to introduce undesirable traits.

Advantage of self pollination:-

Pollen grains do not go to waste.

Flowers need not to be large and showy

It is much surer in such bisexual flowers where stamens and carpels mature at the same time

Disadvantage of self pollination:-

Doesn't yield new varieties

Weakening of the species

New characters are not introduced,the resultant offsprings immunity to diseases reduces.