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1972年以来，我所以新疆核桃实生后代中的实生早实类型为母本，以晚实类型和辽宁核桃为父本，进行杂交。从杂交后代中筛选出丰产、优质和抗病两个优良类型。经多年无性系栽培比较和区域试验，证明其上述优良性状遗传稳定，同样表现丰产、优质、抗病等优点。1995年11月通过辽宁省科委组织的专家鉴定，并命名为辽宁5号和辽宁7号。目前在我国已有10个省、市引种栽培。
Since 1972, so I have real-life type of real-life in Xinjiang offspring of walnut as the female parent, with late-type and Liaoning walnut as the male parent for hybridization. Out of the hybrids, two excellent types of high yield, high quality and disease resistance were screened out. After many years of clonal cultivation comparison and regional trials, proved that the above traits of genetic stability, the same performance of high yield, high quality, disease resistance and so on. In November 1995, it was appraised by experts organized by Liaoning Provincial Science and Technology Commission and named Liaoning No. 5 and Liaoning No. 7. At present, 10 provinces and cities in our country have been introduced and cultivated.