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在对近３００份黄瓜品种资源进行筛选、鉴定的基础上，从１９８７年开始利用２３．２２Ｃ·ｋｇ－１６０Ｃｏγ射线辐射处理具某些优良特性的自交系干种子，并在其变异后代群体中分选出主要性状均能稳定遗传的优系材料辐Ｍ８，用其作亲本与另一高代自交系配制出适于冬春茬日光温室栽培的一代杂种津优２号。该品种植株生长势强、熟性早、产量高，从播种到始收７０ｄ（天）左右，每６６７ｍ２产黄瓜５５００ｋｇ左右，比对照长春密刺增加１９．３％～２６．４％，对霜霉病、白粉病、枯萎病有较强抗性；耐低温、弱光能力较强，前期１０～１３℃夜温及１００００ｌｘ弱光条件下可正常生长。瓜条长３２ｃｍ，长棒形，深绿色，刺瘤明显，白刺，商品性好，单瓜质量２００ｇ，顺直匀称，口感甜脆。
Based on the selection and identification of nearly 300 cucumber cultivars, the dry seeds of inbred lines with some excellent traits were treated with 23.22C · kg-160Co γ-ray radiation from 1987 and the mutants Select the main traits can be stable inheritance of the superior line of material radiation M 8, using it as a parent and another high-generation inbred lines for the preparation of winter and spring crops in greenhouse hybrid generation Jinyou 2. The varieties of plants grow strong, early maturity, high yield, from sowing to the beginning of harvest 70d (days) or so, about 5500kg per 667m2 cucumber, compared with the control Changchun dense thorn increased by 19.3% to 26.4%, the cream Mildew, powdery mildew, wilt disease have strong resistance; low temperature resistance, weak light ability, early 10 ~ 13 ℃ night temperature and 10000lx low light conditions can grow normally. Guajian long 32cm, long bar, dark green, obvious tumor, white thorn, good merchandise, single gourd quality 200g, straight symmetry, sweet and crisp taste.