板栗膏药病对树皮电阻值的影响

为给板栗膏药病的防治和进一步研究提供参考,对安徽省舒城县河棚板栗产区板栗膏药病与树皮电阻值的相关性进行了研究,结果表明:树皮电阻值与病情呈显著的正相关,即感病程度越重树皮电阻值越大,感病越轻电阻值越小;同一植株上同一病斑的不同位置,树皮电阻值差异极显著,即病斑中央树皮电阻值最大,高于病斑上方、病斑下方、病斑侧面和健康处。

Effects of Plaster Disease on Resistance Value in Castanea mollissima Bark

In order to offer reference for control of plaster disease and further research, relationship between resistance value in Castanea mollissima bark and plaster disease were studied,at Hepeng chestnut producing area of Anhui Province.The results showed that there was significant positive correlation between plaster disease condition and resistance value in C.mollissima bark.The resistance value in bark with heavier disease was higher,and it in bark with lighter disease was lower;the difference was extremely significant between the resistance values at different positions of a disease spot in a plant,and the resistance value is higher at center of disease spot in bark than the other positions.