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苏联1982年发明公报22号介绍了早期鉴定山杨对心腐抗性强弱的方法。这种方法非常简单,只要根据山杨嫩叶表面绒毛的多少即可鉴别其抗心腐能力。经大量调查研究,制定了一个山杨叶表绒毛多少与抗心腐力的相关表,即叶表绒毛越多,抗心腐力越强,反之则越易感染山杨假引火菌引起的心腐病。使用这一方法可大大提高山杨优树选择的精度
The Soviet Union 1982 Bulletin No. 22 describes the early identification of ascendens on the heart of rot resistance method. This method is very simple, as long as the surface of the young leaves of villi can identify its anti-heart rot capacity. After a large number of investigations and studies, developed a Populus euphorbia how much the table table and the anti-corrosion of the table, that leaves the more villi, anti-corrosive stronger, on the contrary the more susceptible to Yang Yang false pythium-caused heart failure . Use this method can greatly improve the selection of Populus euphratica precision