蔬菜杂种一代具有杂种优势,表现为产量提高、抗病性和抗逆性增强、性状整齐一致等特点,因此,广大科研人员把育种的精力都集中到一代杂种的选育上,从1925年,日本人柿崎开始在茄子上利用一代杂种以来,到目前,比较先进的国家如日本、荷兰、美国等绝大多数蔬菜品种为杂种一代,我国的主要蔬菜作物80%以上使用一代杂种,一代杂种在生产上发挥着越来越大的作用。蔬菜杂种一代的纯度是至关重要的,它直接影响到杂种优势的表现和增产效果,这就要求配制的一代杂种具有较高的纯度,而在一代杂种的生产过程中,经常由于亲本不纯,去雄不及时,自交不亲和系或雄性不 Therefore, the majority of researchers focused their breeding efforts on the breeding of the first generation of hybrids. From 1925 to the present, Japanese Kakizaki began to use a generation of hybrid eggplant, since the more advanced countries such as Japan, the Netherlands, the United States and other overwhelming majority of vegetable varieties as a hybrid generation, China’s major vegetable crops more than 80% of the use of a generation of hybrids, hybrids in the Production plays an increasingly important role. The purity of vegetable hybrid generation is crucial, which directly affects the heterosis performance and yield, which requires the preparation of hybrids with high purity, and in the generation of hybrids, often due to the parental impure , Not male, not self-incompatible or males