Thank you for reporting, we will resolve it shortly
Q.
If the male plant has the genotype $TT$ and the female
plant has the genotype $tt$ then they contribute pollen
and egg, respectively with
Principles of Inheritance and Variation
Solution:
Since, both the male and female parents are
homozygous with genotype $TT$ and $tt$, respectively they
will contribute only one type of gamete. The male will
produce gamete (pollen) of type $T$ and the female will
produce a gamete (egg) of type $t$.