An agricultural or horticultural loan commitment as used in Section 10203.5 and in Article 5.9 (commencing with Section 779.1), Chapter 1, Part 2, Division 1 means a binding agreement to loan money up to a fixed amount as needed for agricultural or horticultural purposes, which commitment is issued by:
(1) A national or state commercial bank; or
(2) A federal intermediate credit bank or a production credit association organized under the Farm Credit Act of 1933, as amended;
lawfully operating in this State.