11. For instance, many varieties of fruit trees need cross pollination by bees to thrive. 12. Cross pollination through migrating West Indians helped develop a community interested in the music.13. Niger is self-sterile and requires bees for cross pollination . 14. This one-way system helps to ensure cross pollination . 15. Staples is also trying to practice cross pollination . 16. His affection for both religions led him to seek the cross pollination of ideas between the faiths. 17. It needs cross pollination from compatible cultivar. 18. Emerse flowers don t seem to set seed on their own so it probably requires cross pollination . 19. He began experimenting with the artificial cross pollination firstly of cereal plants, then herbage species and root crops. 20. Potatos are occasionally grown from seed by researchers when they try to produce new varieties by cross pollination .
