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辽宁省是我国板栗、核桃、枣生产栽培的北界,冻害问题是我们必须十分重视的问题。1976年冬至1977年春,在辽宁省出现了历史上罕见的奇寒,苹果、梨、桃、李、樱桃等果树均受到不同程度的冻害。为了鉴定引种的板栗、核桃、枣等干果果树的抗寒性,1977年5月上旬在锦西县虹螺山林场和
Liaoning Province is the northern boundary of China’s chestnut, walnut and jujube cultivation. The problem of frost damage is a problem that we must attach great importance to. The winter of 1976 to the spring of 1977 appeared in Liaoning Province, a rare history of the odd cold, apple, pear, peach, plum, cherry and other fruit trees are subject to varying degrees of frost damage. In order to identify the introduction of chestnuts, walnuts, dates and other dried fruit trees cold resistance, early May 1977 in Jinxi County Hailuoshan Forest Farm and