已有多种方法被用于提高地方良种的性能，包括杂交育种，以及通过与良种的回交和品系内选育进行的品种改良。

Various approaches have been used to improve the performance of adapted indigenous stock, including cross-breeding and upgrading through back-crossing with improved breeds, and within-line selection.

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现代育种手段进行果酒酵母的选育方法有诱变育种、杂交育种、原生质体融合、基因克隆和转化等技术。

The breeding methods of fruit wine yeast nowadays cover mutation breeding, cross breeding, protoplast fusion, and genetic cloning and transformation etc.

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