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为了培育早实、丰产、优质、抗病的核桃新品种,自1969年开始,以来自新疆、陕西的早实丰产但不抗病的核桃类型,和来自河北、山西、河南等地的晚实抗病核桃类型为亲本,进行人工杂交,从中筛选出辽宁1号、辽宁3号、辽宁4号等优良品种(品系)。目前我国已有17个省(市、区)引种或进行较大面积栽培。介绍了这些品种的杂交亲本、培育过程、生物学特性、经济性状和抗逆性,并提出了适宜的栽培技术。
In order to cultivate early, high yield, high quality, disease-resistant walnut new varieties, since 1969, from Xinjiang, Shaanxi early yield but not disease-resistant walnut types, and late from Hebei, Shanxi, Henan and other places The type of disease-resistant walnut was the parent, and artificial crosses were made, and the fine varieties (lines) of Liaoning No. 1, Liaoning No. 3 and Liaoning No. 4 were screened out. At present, 17 provinces (cities and districts) in our country have introduced or conducted large-scale cultivation. The hybrid parents, breeding process, biological characteristics, economic traits and stress resistance of these varieties were introduced, and suitable cultivation techniques were put forward.