**5. Conclusions**

With all these examples we can say that low doses of ionizing radiation could improve the crop by increasing production, reducing the time of germination, accelerate growth of seedlings and generate interest new varieties of some plant species, including trees. However, to achieve these results it is important to set the threshold hormetic species specific depending upon the type of tissue that is irradiated, the quantity of humidity inside the tissue and establish an appropriate model depending on the type of production that is required.

Radiation hormesis provides the basis for appropriate utilization of ionizing radiation as a useful tool in our society. It can provide more efficient use of resources, maximum production of grain, vegetables, and meat, and increased health and longevity. Efficient utilization of nature's resources demands support to explore the practical application of radiation hormesis.
