半干旱黄土丘陵区沙棘优良品种引种选育试验研究

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1985-1998年先后在黄土高原半干旱区的陕西吴旗、安塞县进行了沙棘优良品种引种选育试验研究。通过引种国内不同地理种源20余种优良沙棘类型,引进俄罗斯优良沙棘品种,采用家系选择法进行试验研究,初步筛选出生态经济型5种沙棘类型,经济型2种类型。前者生长迅速、树冠好、根系发达、郁闭快、水土保持效益好,且果实较大(果径0.8-0.9cm,百果重20-31g),单株产果量为2-3.5kg,Vc和含油量较高,其生态、经济性状较当地野生沙棘为好。此种类型沙棘适于在黄土丘陵大面积荒沟、荒坡种植。通过引种俄罗斯大果、无刺沙棘优良品种与本地野生中国沙棘对比分析看出,其适应性、抗性较中国沙棘差,经济性状较好。通过试验筛选出2种优良类型,果径为0.9-1.3cm、百果重46-52g,单株产果量2-3.5kg,无刺或少刺。此项研究为在半干旱黄土丘陵区大面积荒山、荒沟建造高产、优质沙棘林,高效、持续发展沙棘产业具重要意义。在引种试验中必须掌握好其关键技术,建立好采穗圃、种子园,并建立一定面积的集约经营的高产、优质沙棘园及良种繁育基地,掌握好抚育管理技术,特别是水、肥管理技术 1985-1998 successively in Shaanxi Loess Plateau semi-arid area Shaanxi, Ansai County, the introduction and breeding of fine varieties of seabuckthorn. By introducing more than 20 species of good seabuckthorn from different geographical provenances in China, we introduced the fine seabuckthorn varieties from Russia and conducted the pilot study using the pedigree selection method. Five types of seabuckthorn ecologically and economically, and two economical types were initially screened out. The former grows rapidly, the crown is good, the root system is developed, the canopy is closed quickly, the water and soil conservation benefit is good, and the fruit is larger (fruit diameter 0.8-0.9cm, fruit weight 20-31g) 3.5kg, Vc and higher oil content, its ecological and economic properties than the local wild sea buckthorn better. This type of seabuckthorn suitable for a large area in the loess hilly, wasteland planting. The results showed that the adaptability and resistance were better than that of Chinese seabuckthorn and the economic traits were better than those of the Chinese wild seabuckthorn. Two kinds of excellent types were screened out through experiments, with fruit diameter of 0.9-1.3cm, fruit weight of 46-52g, fruit yield per plant of 2-3.5kg, no sting or less spines. This research is of great significance for the construction of high-yield and high-quality seabuckthorn forests in a large area of ​​barren hills and wilderness in the semi-arid loess hilly region with high efficiency and sustainable development of seabuckthorn industry. In the introduction of the test must grasp its key technologies to establish a spike garden, seed orchard, and the establishment of a certain area of ​​intensive management of high yield, high quality seabuckthorn and breeding base, good tending management techniques, especially water and fertilizer management technology
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