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近几年来,苏联各地理区中沙棘常常在夏天突然干枯,并多发生在生长最旺期和结果期。从1976年到1980年,在“西伯利亚”国营农场、阿尔泰边区滨斯克中技校林场、奥尔洛夫果树—浆果试验站(奥勒尔城)和全苏米丘林果树研究所(米丘林斯克城)的沙棘人工林中,以及在阿尔泰、高加索和加里宁格勒州的天然沙棘丛林中研究了这种现象。调查研究发现,沙棘的健康植株多在造林后第二年7—8月突然死亡,有时也发生在夏季的上半季。受害后沙棘顶端的叶子首先变成花黄色,然后脱落。带果的枝条8—9天即干枯。这种过程逐渐扩散到下部枝条,整个植株短期就可死亡。死亡植株的根部下一年会发出根蘖,根蘖3—4年生时也发生干枯。
In recent years, the seabuckthorn in the Soviet Union has suddenly dried up in the summer and occurs most often in the growing season and in the outcome. From 1976 to 1980, on the “Siberian” state farm, the Alsatian border area of Basque Country’s technical school forest farm, the Orlov fruit-berry test station (Orel city) and the All Somkidori Fruit Tree Research Institute Sokcho) and in natural Hippophae rhamnoides forests in Altaic, Caucasus and Kaliningrad regions. The survey found that most of the healthy plants of seabuckthorn died suddenly in July-August of the second year after afforestation, sometimes in the first half of summer. After the victims of the top of the leaves of Hippophae first turn yellow, and then fall off. Branches with fruit 8-9 days that is dry. This process gradually spread to the lower branches, the entire plant can die shortly. Roots of dead plants will emit root tillers next year, and root tillers 3-4 years old also dry.