蒙中杂交沙棘子代优良单株生态适应性评价  

Evaluation on Ecological Adaptability of Superior Single Plant of Hybrid Hippophae rhamnoides

作　　者：陈晓娜 赵纳祺 海鹭 刘湘杰 俞潇 唐克 寇峰 CHEN Xiaona;ZHAO Naqi;HAI Lu;LIU Xiangjie;YU Xiao;TANG Ke;KOU Feng(Experimental Center of Desert Forestry,Chinese Academy of Forestry,Dengkou 015200,Inner Mongolia;Dengkou Station of New Plant Variety Testing Center,National Forestry and Grassland Administration,Dengkou 015200,Inner Mongolia;National Long-term Scientific Research Base of comprehensive control in Ulan Buh Desert,National Forestry and Grassland Administration,Dengkou 015200,Inner Mongolia;Institute of Rural Revitalization Science and Technology,Heilongjiang Academy of Agricultural Sciences,Harbin 150028,Heilongjiang;Dengkou County Wetland Park Service Centre,Dengkou 015200,Inner Mongolia)

机构地区：[1]中国林业科学研究院沙漠林业实验中心,内蒙古磴口015200 [2]国家林业和草原局植物新品种测试中心磴口分中心,内蒙古磴口015200 [3]乌兰布和沙漠综合治理国家长期科研基地,内蒙古磴口015200 [4]黑龙江省农业科学院乡村振兴科技研究所,黑龙江哈尔滨150028 [5]磴口县湿地公园服务中心,内蒙古磴口015200

出　　处：《温带林业研究》2023年第4期15-20,共6页Journal of Temperate Forestry Research

基　　金：国家水利部沙棘开发管理中心项目。

摘　　要：【目的】进一步筛选具备优良性状的杂交沙棘新品种。【方法】以引进的蒙古沙棘为母本,以中国沙棘为父本,开展了杂交选育研究,共选育出9个优良单株,通过测定定植1 a和2 a后优良杂交种植株的生长指标,对其生态适应性进行探讨和综合评价。【结果】定植2 a后,9个优良杂交单株的保存率都在60%之上,棘刺数为1~3个,介于中国沙棘和大果沙棘之间,株高平均值在137.80~223.90 cm之间,冠幅平均值在86.40~155.60 cm之间,地径在20~40 mm范围内波动,一级分枝数均超过20个。相关分析显示,株高、地径、冠幅关系较密切,三者之间互相影响、相互促进。【结论】综合评价显示,9个杂交沙棘无性系在干旱半干旱环境中的生态适应性适中甚至良好,均达到选优效果,且随沙棘定植年份的增加,9个单株生态适应性越来越强。【Objective】This paper aims to further screening of new hybrid Hippophae rhamnoides varieties with good characters.【Method】Using Hippophae rhamnoides subsp.mongolica as the female parent and Hippophae rhamnoides subsp.sinensis as the male parent,a total of 9 excellent single plants were selected and bred.The ecological adaptability was discussed and evaluated by measuring the growth index of the excellent hybrid plants after 1 a and 2 a planting.【Result】The results showed that,the preservation rates of the 9 hybrid individual trees were all above 60%,the number of spines was 1-3,average plant height ranged from 137.80 cm to 223.90 cm,the average crown width ranges from 86.40 cm to 155.60 cm,the ground diameter fluctuates in the range of 20 mm to 40 mm,the number of primary branches was more than 20 after 2 years of colonization.Correlation analysis showed that plant height,ground diameter and crown width were closely related,and the three affected and promoted each other.【Conclusion】The comprehensive evaluation showed that the ecological adaptability of the 9 hybrid Hippophae rhamnoides clones in arid and semi-arid environment was moderate or even good,and all of them achieved the optimal effect.With the increase of planting years,the ecological adaptability of the 9 individual plants became stronger and stronger.

关 键 词：生态适应性 杂交选育 蒙古沙棘 中国沙棘 

分 类 号：S793.6[农业科学—林木遗传育种]