Does backing mean support?

Context:
In 1943, Chang was introduced to a famous editor, Shoujuan Zhou (http://zh.wikipedia.org/wiki/%E5%91%A8%E7%98%A6%E9%B5%91), and gave him a few pieces of her writing. With Zhou's backing, Chang soon became the most popular new writer in Shanghai. Within the next two years, she wrote some of her most acclaimed works, including Qing Cheng Zhi Lian (http://zh.wikipedia.org/wiki/%E5%82%BE%E5%9F%8E%E4%B9%8B%E6%88%80) and Jin Suo Ji (http://zh.wikipedia.org/wiki/%E9%87%91%E9%8E%96%E8%A8%98). Her literary maturity was said to be beyond her age.