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本文对4个试验点的5年生沙棘种源试验林的营养生长和生殖生长的结果进行了分析和评价。试验表明,沙棘不同种源的营养生长和生殖生长以及果实生化成分都存在明显的差异。这与产地的纬度、经度、海拔高度有显著的相关性。地处中纬度、高海拔的甘肃、宁夏、青海等省(区)的中西部种源,其早期营养生长表现出明显优势。地处高纬度、低海拔的内蒙、河北、山西等省(区)的华北种源,果实较大,成熟较早,总糖含量较高,但V_c、总酸含量较低。这为生产上种源选择、引种、育种提供了科学依据。
In this paper, the results of vegetative growth and reproductive growth of five-year-old Hippophae rhamnoides provenance forests at four test sites were analyzed and evaluated. The results showed that there were obvious differences in vegetative and reproductive growth and fruit biochemical composition in different provenances of seabuckthorn. This has a significant correlation with the latitude, longitude and altitude of the place of origin. Located in mid-latitude, high altitude Gansu, Ningxia, Qinghai and other provinces (regions) of provenance, its early vegetative growth showed obvious advantages. The provenances in north China, located in the high latitudes and low elevations of Inner Mongolia, Hebei and Shanxi Provinces, have larger fruits, earlier maturation and higher total sugar content but lower Vc and lower total acid content. This provides a scientific basis for the selection of seed sources, introduction and breeding in production.