1.Qinghai Academy of Agriculture and Forestry Sciences,Xining,Qinghai 810016;2.Qinghai Plateau Key Laboratory of Tree Genetics and Breeding,Xining,Qinghai 810016;3.Xishan Forest Farm of Xining City,Xining,Qinghai 810008
Five early fruit walnut varieties (J.regia cv.Liaoning No.1,J.regia cv.Liaoning No.3,J.regia cv.Xiangling,J.regia cv.Jing 861,J.regia cv.Xifu No.1) were used as test materials,through the analysis and evaluation of biological and fruit economic traits,the regional introduction observation experiment was carried out.The results showed that ‘J.regia cv.Liaoning No.1’ could be used as an excellent variety suitable for cultivation in Qinghai Province.