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据《Scientia Horticulturae》(2012年5月)的一篇研究报告,来自西班牙科尔多瓦大学园艺学院的研究人员对石灰质土壤中榅桲无性系对缺铁黄化症的抗性进行了田间评价。试验为期3年。黄化症严重程度用SPAD指标表示,植株生长势由枝条长度表示。结果表明,两个无性系被鉴定为最抗,余下的为易感或中度抗性。榅桲黄化症随季节和年份变化而逐渐增强,夏季和
According to a study by “Scientia Horticulturae” (May 2012), researchers from Cordoba University’s horticultural institute in Spain conducted a field evaluation of resistance to iron deficiency yellow disease in clams of calcareous soil . Test for a period of 3 years. The severity of the disease is expressed by the SPAD indicator and the plant growth potential is expressed by the length of the shoot. The results showed that two clones were identified as the most resistant, the rest being susceptible or moderately resistant. Scapes yellowing disease with seasons and years of change and gradually increased, summer and