用电导法配合Logistic方程测定若干甜橙品种的抗寒性

Determination of Cold Resistance in Some Cultivars of Sweet Orange by Electric conductivity Method in Combination with Logistic Equation

用电导法配合logistic方程,测定了18个甜橙(Ciruus sinensis Osb.)品种的半致死温度。初步认为,桃叶橙18号、斯卡格斯·朋娜脐橙、福罗斯特脐橙、改良橙和脐血橙等品种稍耐寒,锦橙、哈姆林甜橙等对低温较敏感。

Half lethal temperature of 18 sweet orange (Citrus sinens1is Osbeck) cultivars was determined by electric Conductivity method in combination with logistic equation. The Preliminary data showed that some cultivars such as Taoyecheng No, 18, skaggs Bonanza, Frost navel orange, Gailiangcheng and Washington sanguine were slightly cold resistant and those such as Jincheng and Hamlin orange were cold susceptible.