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以中国沙棘(H.rhamnoides subsp.sinensis)为父本,蒙古大果沙棘乌兰格木(H.rhamnoides subsp.mongolica)为母本,于1995年开展了杂交选育研究,共选育出45个优良单株。播种定植后,再经嫩枝扦插,定植,2014年测定4年生优良杂交种嫩枝扦插苗生长指标,对其生态适应性和经济效益进行探讨和综合评价,以期筛选更加优良杂交新品种及对大果沙棘的推广提供理论支撑。结果表明,30个单株的株高、地径、冠幅及10 cm枝叶片数均生长良好。杂交种1年生、2年生枝10 cm段棘刺数分别为0~3个和0~4个,优于中国沙棘。株高与地径关系最为密切。综合评价结果反映出所选30个单株适应性良好,适合推广,可提高沙棘在沙区的生态与经济效益。
Using H.rhamnoides subsp. Sinensis as the male parent and H.rhamnoides subsp. Mongolica as the female parent, we conducted a crossbreeding study in 1995 and selected 45 A fine single plant. After sowing and planting, then by cutting and planting of shoots, measuring the growth index of 4-year-old young branch cutting seedlings of 4-year-old hybrids, discussing and synthetically evaluating their ecological adaptability and economic benefits, with a view to screening more excellent new hybrid varieties and The promotion of large-scale seabuckthorn provide theoretical support. The results showed that the plant height, diameter, crown width and number of 10 cm branches and leaves of 30 plants all grew well. The annual numbers of spikelets in 1-year hybrids and 10-year-old branches of 2-year-old branches were 0-3 and 0-4, respectively, which were better than that of Chinese seabuckthorn. The relationship between plant height and diameter is the closest. The comprehensive evaluation results showed that the 30 selected plants were well adapted and suitable for popularization, which could improve the ecological and economic benefits of seabuckthorn in sandy areas.