以5个带有Tm2nv基因的加工番茄新品系为母本，加州汁用和美东作父本配制10个杂交组合，以这些试材对加工番茄35个主要性状的杂种优势进行了系统的研究。结果表明：加工番茄早熟性和总产量的杂种优势十分明显而普遍，因此利用杂种优势是加工番茄早熟、丰产育种的简捷而有效的途径。而杂种在可溶性固形物、Vc、茄红素等品质性状方面多表现为双亲的中间类型，出现强优势的机率较小，因而以改善上述品质性状为主要育种目标时，不宜采用杂种优势育种法。加工番茄F1果实横径具有较强的优势，果实纵径则偏于中间值，因此要选育耐压、抗裂的长果形加工番茄品种，则应选择果形指数大的材料为亲本。在10个杂交组合中，杂交组合“9596－25ｘ美东”在早熟性、丰产性及品质方面均表现较好，是一个优良的杂交组合，可作进一步的比较试验。 Five new hybrid tomato lines with Tm2nv gene were used as female parent, California juice and East American parent were used to prepare 10 hybrid combinations. The heterosis of 35 main characters of processed tomato was systematically studied with these samples. The results showed that the heterosis of processing tomato premature and total yield was very obvious and common. Therefore, the utilization of heterosis is a simple and effective way to process premature and high yield breeding of tomato. However, hybrids were more likely to be intermediate types of parents, such as Soluble Solids, Vc, Lycopene, etc., and their chances of showing strong predominance were smaller. Therefore, it is not appropriate to adopt the heterosis breeding method to improve the quality traits as the main breeding target . The fruit diameter of processing tomato F1 has a strong advantage, the longitudinal diameter of the fruit is biased to the middle value, so to grow the pressure-resistant and crack resistant long-shaped processing tomato varieties, the fruit shape index should be selected as the parent material. Among 10 cross combinations, “9596-25x Eastwood”, a hybrid combination, performed better in terms of precocity, high yield and quality, and was an excellent cross combination for further comparative experiments.