Access the information in

help(predict)
help(fitted)

With your reproducible code, run the following

predict(model1)
predict(model1, type="response")
predict(model1, type="response", se.fit=TRUE)

require(lattice)

xyplot(value+fitted(model1)~treatments, data=mydata1,
       distribute.type=TRUE, type=c("p","a"))

Explore the documentation and examples showed there.

At your disposal.
Walmes.

-----
..oooO
..................................................................................................
..(....)... 0ooo...                              Walmes Zeviani
...\..(.....(.....)...     Master in Statistics and Agricultural
Experimentation
....\_)..... )../....       walmeszevi...@hotmail.com, Lavras - MG, Brasil
............
(_/............................................................................................
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