白杨派新无性系--窄冠白杨1号、3号、6号

三个窄冠白杨无性系， 是利用白杨派种、杂种间杂交育成的。窄冠白杨1号是[(椴杨X毛白杨)X响叶杨)X(毛白杨X新疆杨)的多重种间杂种， 雄性， 冠幅1.5米左右， 材积生长量超过对照毛白杨60%， 超过窄冠型毛白杨--抱头毛白杨110%， 抗锈病和抗寒力强。窄冠白杨3号是响叶杨X(毛白杨X新疆杨)的三杂交种， 雄性， 冠幅2.5米左右， 材积生长量超过对照200%， 超过抱头毛白杨300%， 抗褐斑病能力强。窄冠白杨6号是(毛白杨X新疆杨)X响叶杨的三杂交种， 雌性， 冠幅2.5米左右， 材积生长量超过对照140%， 超过抱头毛白杨200%。适于在华北、西北省、区农田林网及林粮间作， 能较好地解决胁地现象。Three narrow-crown poplar clones were bred via interspecific hybridization between species of Populus sect. Leuce and their interspecific hybrids. Narrow-crown Poplar Clone 1 is a multiple interspecific hybrid derived from [(Populus davidiana × Populus tomentosa) × Populus adenopoda] × (Populus tomentosa × Populus bolleana). It is a male clone with a crown width of approximately 1.5 meters. Its volume growth exceeds that of the control Populus tomentosa by 60%, and exceeds that of the narrow-crown Populus tomentosa cultivar 'Baotou' by 110%, with strong resistance to rust disease and cold tolerance. Narrow-crown Poplar Clone 3 is a triple hybrid from Populus adenopoda × (Populus tomentosa × Populus bolleana). It is a male clone with a crown width of approximately 2.5 meters. Its volume growth exceeds the control by 200% and exceeds 'Baotou' Populus tomentosa by 300%, exhibiting strong resistance to brown spot disease. Narrow-crown Poplar Clone 6 is a triple hybrid from (Populus tomentosa × Populus bolleana) × Populus adenopoda. It is a female clone with a crown width of approximately 2.5 meters. Its volume growth exceeds the control by 140% and exceeds 'Baotou' Populus tomentosa by 200%. These clones are well-suited for farmland shelterbelt networks and agroforestry practices in North and Northwest China, as they can effectively mitigate the adverse resource competition between trees and intercropped crops, a phenomenon commonly referred to as the "胁地" effect in Chinese.

搜集汇总

背景与挑战

背景概述

该数据集包含三个通过杂交育种培育的窄冠白杨无性系（1号、3号、6号），详细描述了它们的杂交组合、性别、冠幅尺寸、材积生长量相较于对照品种的显著优势以及抗病特性。这些无性系适用于华北和西北地区的农田林网及林粮间作，能有效缓解胁地问题。