The Potato Breeding Process

Usually 25 different varieties of potato are placed on a tile and covered with soil in the greenhouse.

 

The potato is allowed to grow that way until it is 40 cm tall. All but two of the sprouts, all the potato-forming stems and the soil is removed at this time. The roots are left in place. This is done so that all of the power of potato stimulates the stems.

Now that the stem has received all of the power from the potato, it now transfers this power also to the leaves and flowers. It is not uncommon for a plant to have as many as seven clusters of flowers. The stem will reach a height of about two and a half meters.

The breeder will pollinate the clusters of flowers in the usual way, placing some of the material from the outer male part onto the center female part. The female part always stays with the cluster, where they are pollinated with the male substance from a cluster, from another stem, from another potato.

 

 

Please note: the timing of pollination is very important to avoid self-pollination and unwanted pollination. Once this is done, a bag is placed over the newly pollinated flower for the breeder to keep track of the pollination. In time, seed balls ( 2 to 10) form from the flower and will drop into the bag.

The seed balls are allowed to dry for easy removal of the new seeds. There can be up to a total of 200 seeds in each seed ball. All of seeds (balls) in each cluster are all genetically different (brother and sister) and are kept together.

One hundred of seeds are gathered from each pollination and planted in small pots, one seed per pot. The yield of potatoes from each pot is from zero to three.

 

 

 

 

 
 
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