The first category of BV was defined as the combination of direct additive, cytoplasmic, and maternal additive effects, which should be utilized for selecting stable cultivars over multi-environments.

• 第一类育种值由直接加性效应、细胞质效应以及母体直接加性效应构成，该类育种值能用于多个环境下稳定性品种的选择。