杨树良种‘窄冠黑杨Ⅰ号’和‘窄冠黑杨Ⅱ号’

Elite Poplar Varieties Populus deltoides ‘Lux’ ×(P.deltoides ‘Shanhaiguan’ × P.simonii)‘Zhaiguan Ⅰ’and P.deltoides ‘Lux’ ×(P.deltoides ‘Shanhaiguan’× P.simonii)‘Zhaiguan Ⅱ’

窄冠黑杨Ⅰ号,Ⅱ号是以美洲黑杨与窄冠黑青杨为亲本,通过杂交获得的杨树新品种,雄株;速生,材积生长量与对照中林46相近;树冠窄,冠幅比一般宽冠杨树小1/2～1/3;易生根;有较强的耐盐碱能力,在土壤含盐量0.3%,pH8～8.5的中轻度盐碱农田中,生长良好;是优良的农林复合经营新品种,适合在我国华北、西北东部等地种植。

Populus deltoides ＇Lux＇ ×（P.deltoides ＇Shanhaiguan＇ × P.simonii）＇Zhaiguan I＇and Populus deltoides ＇Lux＇ ×（P.deltoides ＇Shanhaiguan＇ × P.simonii）＇Zhaiguan Ⅱ＇are elite poplar varieties selected from Populus deltoides ＇Lux＇ × P.＇Lu6＇,＇Lu31＇and ＇Lu69＇.They are male,and grow fast with the volume close to the control.Their crowns are 1 /2-1 /3 narrower than wide-crown poplar.They are easy to root,and highly capable of resisting saline-alkali.They grow well in the medium and low saline-alkali soil with 0.3 percent of salinity content and pH 8 ～ 8.5.So they are new excellent agroforestry varieties,and suitable for north and eastern northwest China.