Kiwi fruit pollination & How are kiwi fruits pollinated ?

Today we are going to talk about the importance of Kiwi fruit pollination and the importance of Pollination in Kiwi fruit production. So we know that the kiwi fruit plant is either male or female. That is why when we are planning to plant a kiwifruit orchard, it is important to plant one male plant for every Nine female plants. If one male plant is not planted then 9 female plants will also not bear fruit.

Kiwi fruit pollination
Kiwi fruit

So April and May are the right time for pollination because at this time both the male and female flowers are in bloom. So we can see that the female plant has a bump before the flowers bloom. After that, the flower opens a little. it’s a different phenological stage of the flower, And in the last stages, the flower is in full bloom. which you can also see in the picture.

Kiwi fruit pollination
Before Bloom
Kiwi fruit pollination
After Little Bloom
Male and female flower of kiwi
Full bloom

This is a female flower, its female part is in the middle and this which is yellow on the side is the male part. I will tell you later how to distinguish both flowers.

This is a flower whose pollination is done by hand, that is called hand pollination. After pollination, these petals become yellow and fall off. After this, the fruit setting is done. This fruit gradually increases in size and after about 200 days it becomes ready for harvest.

So today’s main issue is Kiwi fruit pollination and before that, we will know how Kiwi flowers look.

Differences between Male and female Kiwi fruit flowers

Female Kiwi fruit flower

kiwi female flower

This part of the mother’s flower is the female part, which is called multi carpellary stigma. Now see, this is the female flower, it has both male and female parts, but these are called fake pollen. These male parts are called anthers and are called fake anthers as they are not very viable. That’s why it is called the female flower.

Male Kiwi fruit flower

Male flowers in Kiwi

The second flower is the male flower. There is no female part in it. it has very prominent anthers. Anther has a large number of pollen grains. when both male and female flowers are in full bloom and when the pollen of male flowers meets with the stigma of the female flower. then after the pollen tube develops it later becomes fruit.

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Importance of Kiwi fruit pollination

Scientifically 100 grams of kiwi fruit contains around 1000 seeds. In the case of kiwi fruit, especially in the fruit market, the size of the kiwi matters a lot. If our kiwi fruit is above 100 grams then we will categorize it into A- grade fruit. And it gets a very good price in the market. How to Grow Banana Trees from Banana

In 100 gms Kiwi fruit contains about 1000 seeds. How are these seeds formed? Seeds are formed in the process of pollination. To form one seed, 10 times more pollen is used. So to form 1000 seeds, 10000 pollen will be used. So pollination plays an important role in kiwi fruit quality and production.

Pollination in Kiwi fruit

This is a very broad aspect of kiwi fruit cultivation. Because if it is not pollinated then it will not produce fruit. If it happens on its own or without full pollen grains. then the size of the Kiwi fruit will be small or NOT proper healthy fruit will not be formed, so pollination determines what size the fruit will be. In Kiwi, the pollination process takes place in many ways. We will discuss some of those methods below

Pollination by insect

As in other fruits, the mode of pollination or pollinator is an insect such as a bee. In this kiwi fruit pollination, the bee carries different pollens to the female flowers. However, the petals in kiwi flowers do not contain a higher amount of nectar which does not attract honey bees resulting in lesser pollen transfer. Nectar plays an important role in honey sweetness.

Pollination by insect
Kiwi pollination by honey bee

If we keep bee boxes in the orchard it would be helpful for pollination but in the case of the kiwi orchard, it won’t help us much. So let’s see what we can do for adequate pollination in Kiwi orchards. so that we could get a good size of kiwi fruit

Pollination by pollen extractor/rupture method

In developed countries, they use the method of pollen extractor. They remove or extract the anthers from these male flowers. After that dry all the anthers at 25-30 degrees Celsius but not in direct sunlight.After that pollen grains get out

Pollination by pollen extractor/rupture method
Extraction of pollen grain from anther

9-11 am is the best time for pollination. So in between this time, we will spray/sprinkle the pollen grains on the female flower with the help of a brush. After that pollination process takes place

Many times the male flower does not bloom at the same time as the female flower. That is why there is no synchronization between male and female flowers. In that condition, we can harvest and store anthers or pollen grains source at -20 degrees Celsius in a tube or any storage container. And we can use the stored pollen for one year or we can use that pollen grain source for next year.What is root rot

Pollen rupture is used in developed countries. The pollen grains are sucked from the male flower and then dried in a container and after that, they can be stored and used for up to a year for pollination.

Hand Pollination

So the first effective method is hand pollination. we have an option of hand pollination here in India. In hand pollination When the female flower is in full bloom, the female flower is just touched by the male flower between 9-11 am in the morning. One male flower can touch 7-8 female flowers.

Hand Pollination
female flower is just touched by the male flower

By this process, we do hand pollination in kiwi fruit. Due to this process, the color of the petals turns yellow and falls and after that, the formation of fruits starts.

These are all methods with the help of which pollination takes place in kiwi fruit. Due to a lack of proper pollination, fruit quality and production can be greatly affected. You can pollinate a kiwi plant using all the methods discussed above.

How are kiwi fruits pollinated?

In the kiwi fruit plant, there are male and female plants. Every 9 female plants required one male plant. In the pollination process, the male flower of the kiwi plant contains anthers and in the male flower, it has 1000 pollen grains. When the pollen of the male flower meets with the stigma in the female flower then the pollen tube develops and later it becomes fruit. The more the pollen grain meets on the female stigma healthier the Kiwi fruit and its size.

Is kiwi fruit self-pollinating?

No kiwi fruit is not self-pollinating, it requires cross-pollination between male and female plant flowers. It is very important to have both male and female plants in the kiwi orchard. One male plant can pollinate 9 female plants. However, there are some varieties of kiwi under research for self-pollination.

Self-pollination: Type, Advantages and Disadvantages

What is the agent of pollination of the kiwi fruit?

The primary agents of kiwi fruit pollination are bees, honey bees, and other insects. Without pollination, the kiwi plant does not bear fruit. However, insects like honey bees are not a suitable method because kiwi flowers do not contain nectar and hence honey bees are less attracted to the kiwi plant.

Do kiwis need bees?

Pollinator agents like bees are not very effective in kiwi pollination because, in the petals of kiwi, flowers have a minor amount of nectar. so that bees are not attracted to the kiwi flower resulting in less pollen transfer by bees to the female flower. So the bees are not effective for Kiwis

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Is Kiwi cross-pollinated?

Yes, kiwis are cross-pollinated when a male flower`s pollen grains come in contact with the female stigma.