Definition process types and advantages of artificial pollination
We all know that pollination is mainly carried out by insects, birds, animals, water and wind. Insufficient pollination affects the fruit and seed set and resistance to herbivores., This is because of limited outcrossing opportunities. To overcome these effects, artificial pollination is carried out by humans. In this process, we use mechanical techniques to pollinate plants. In this type of pollination we don't need any insects or weather agents. Application of this technique is important because most of the time there are not enough pollinators to perform pollination and sometimes their introduction is also risky. This technique is considered as an alternative to natural pollination.
The Process of Artificial Pollination
In this type of pollination, we use a mechanical method by which we carry pollen or plant sperm from one flower to another flower. This enables the pollen to fertilise the ovaries and create seeds that develop into fruits and new plants. With the decreasing number of bees, artificial pollination is more in trend. If we take the example of China, 100% plants are pollinated artificially. So, we can see that artificial pollination is beneficial.
Method Involved in Artificial Pollination
There are several methods which are involved in artificial pollination. Some of them are listed below:
Method I
This method is mainly used for vegetable plants, which have separate male and female parts. In this technique, we take the male flowers and remove their petals. This process should be done without touching the stamen, to avoid the pollen transfer to the fingers. After this, we have to search for a blooming female flower with its petals pushed back. We need to then touch the stamens of the male flower to the stigma of the female flower and roll it smoothly and gently, so that the pollen gets transferred to stigma and pollination can happen.
Method II
In the method we can move cotton over the stamens of male flowers to collect as much pollen grains as possible. After this, the collected pollen is shed over the stigma of the female flower.
Method III
This method is mainly applicable for those plants that undergo self pollination such as tomatoes, beans, pepper, etc. In this method, fans are set up over the branches for shaking stems so that pollen grains fall over the stigma.
Advantages of Artificial Pollination
There are so many advantages of artificial pollination. Some of them have been listed below:
Artificial pollination can increase the fruit size and seed numbers
It has the ability of converting flowers to export fruits.
It is more suitable because it does not depend on any chance factors
Through this type of pollination, we can generate a large variety of hybrid plants
Conclusion
Pollination is the process through which the pollen is transferred from one point to another. This process is usually carried out by agents such as birds, insects, water, wind and seed production. In the absence of these agents, artificial pollination methods are used.
FAQs on Artificial Pollination in Flowering Plants
1. What is artificial pollination?
Artificial pollination is the deliberate transfer of pollen grains from the anther of one flower to the stigma of another by human intervention. It is carried out to ensure successful fertilization when natural pollinators like insects or wind are absent or unreliable.
- Involves manual collection of pollen from selected plants
- Transfer of pollen to the receptive stigma
- Common in crop breeding and hybrid seed production
2. Why is artificial pollination done in plants?
Artificial pollination is done to ensure controlled fertilization and improve crop quality and yield. It is especially important in plant breeding programs and in areas with declining natural pollinators.
- To produce hybrid varieties with desirable traits
- To increase fruit and seed production
- To prevent unwanted cross-pollination
- To maintain genetic purity of crops
3. How is artificial pollination carried out step by step?
Artificial pollination is carried out by manually transferring pollen from the anther to the stigma under controlled conditions. The basic steps include:
- Selection of healthy parent plants
- Emasculation – removal of anthers from the bisexual flower to prevent self-pollination
- Bagging – covering the flower to avoid unwanted pollen contamination
- Collection of mature pollen grains
- Transfer of pollen to the receptive stigma
4. What is the difference between natural and artificial pollination?
The main difference between natural and artificial pollination is that natural pollination occurs without human help, while artificial pollination is done manually by humans.
- Natural pollination: Occurs via wind, water, insects, birds, or animals
- Artificial pollination: Involves deliberate human transfer of pollen
- Natural pollination maintains natural genetic variation
- Artificial pollination allows controlled breeding and hybridization
5. What is emasculation in artificial pollination?
Emasculation is the removal of anthers from a bisexual flower to prevent self-pollination during artificial pollination. It ensures that the flower receives pollen only from the selected male parent.
- Done before anther dehiscence (pollen release)
- Performed using forceps or scissors
- Essential in producing hybrid seeds
6. What is bagging in artificial pollination?
Bagging is the process of covering a flower with a protective bag to prevent unwanted pollen from reaching the stigma. It is used after emasculation to maintain genetic purity.
- Flowers are covered with butter paper or plastic bags
- Prevents contamination by insects or wind-borne pollen
- Ensures controlled cross-pollination
7. What are the advantages of artificial pollination?
Artificial pollination offers improved crop quality, higher yield, and controlled breeding. It plays a key role in modern agriculture and plant genetics.
- Development of hybrid varieties
- Increased resistance to diseases and pests
- Uniform growth and predictable traits
- Better fruit size and quality
8. Can you give examples of crops where artificial pollination is used?
Artificial pollination is commonly used in crops such as maize, wheat, rice, tomato, and cucurbits. It is widely practiced in hybrid seed production.
- Maize (Zea mays) for hybrid corn production
- Rice (Oryza sativa) in breeding programs
- Tomato and brinjal for improved varieties
- Cucumbers and melons for controlled cross-pollination
9. Is artificial pollination the same as cross-pollination?
Artificial pollination is not the same as cross-pollination, but it often involves controlled cross-pollination. Cross-pollination refers to pollen transfer between different plants, while artificial pollination refers to human-assisted pollen transfer.
- Cross-pollination: Transfer of pollen between different plants of the same species
- Artificial pollination: Manual transfer of pollen by humans
- Artificial pollination may involve either self- or cross-pollination
10. How does artificial pollination help in plant breeding?
Artificial pollination helps in plant breeding by allowing controlled transfer of desired genetic traits from selected parent plants. It enables the development of improved crop varieties.
- Selection of parents with specific characteristics
- Controlled hybridization to combine traits
- Production of stable and high-yielding lines
- Enhancement of resistance to environmental stress
