该研究采用美洲黑杨为母本，欧亚黑杨为父本，按照杂交育种程序和各项正规试验方法，历时１４ａ，选育出了豫林１４号杨树新品种，其生长、抗性、树形、材质等项指标均优于原推广的国际良种沙兰杨，９ａ生材积超过沙兰杨７３％，是商品化生产胶合板和造纸的良好原料。适宜于我省中、北部平原地区推广栽植 In this study, black poplar as female parent and black poplar as male parent, according to the crossbreeding program and various formal test methods, lasted for 14 days to breed new varieties of Yulin 14, its growth, resistance, tree Shape, material and other indicators are better than the original promotion of the international seed Sallam, 9a raw material product exceeds 73% of Sallam, commercial production of plywood and papermaking good raw materials. Suitable for the province, the northern plains promote planting