Some examples are shown in the following gallery with crops arranged from sensitive to very tolerant.. 1  Graphs of crop yield and soil salinity in farmers' fields ordered by increasing salt tolerance. 2  Fig. 3  Fig. 4  Fig. 5  Fig. 6  Fig. 7  Fig.
He should be at least 18 months old and have been doing public access training (performing his already mastered skills and tasks) in public for at least six months reliably before being transitioned from service dog in training to full service dog.
The Mastiff is a beautiful breed of dog, however, they are not considered good as Service Dogs. The reason being is that the Mastiff lives an average of 8 years. It takes an average of 3 years for a dog to become a Service Dog and a dog should be retired 2 - 3 years before the dog's average ending lifespan. Meaning that you would only be able to use your dog as a Service Dog for about 1 - 2 years.