A state government entity created to encourage agricultural development in Texas is the:

The Texas Agricultural Development District is specifically established as a governmental entity aimed at promoting and advancing agricultural development within Texas. This organization plays a crucial role in facilitating programs and initiatives that support farmers, enhance production, and boost the agricultural economy across the state. Its focus on development distinctly aligns with the core mission of encouraging agricultural practices and providing support to the agricultural community.

In contrast, the Texas Department of Parks and Wildlife primarily focuses on wildlife conservation and recreational resources, the Texas Farm Bureau operates as a nonprofit advocacy organization for farmers and ranchers without the governmental backing of the Agricultural Development District, and Texas Farm Aid is typically associated with fundraising efforts and support for farmers but does not serve as a state entity promoting agricultural development. Thus, the Texas Agricultural Development District is the correct choice reflecting a structured governmental approach to fostering agricultural growth in Texas.