随着我国蔬菜栽培的迅猛发展，国外优良品种大量涌入我国，并以其高产、抗病、优质的特性为广大蔬菜种植者及消费者所看好，如番茄品种中荷兰的卡鲁索、以色列的１４４、１３９等品种，已成为部分地区的主栽品种。然而，进口品种种子价格昂贵，较国产品种高出几十倍，而造成成 With the rapid development of vegetable cultivation in our country, a great number of foreign fine varieties have poured into our country and are favored by the majority of vegetable growers and consumers due to their high yield, disease resistance and high quality characteristics. For example, in the tomato varieties Caruso of the Netherlands, Israel 144,139 and other varieties, has become the main varieties in some areas. However, imported varieties of seeds are expensive and several times more expensive than domestic ones, resulting in a loss