9Sharma R C, Sharma J N. Integrated plant diseases management[M]. Solan, India, 2003. 被引量:1
10Shtefyrtse A A, Kushnirenko M D. Early defoliation of the Golden group apple tree depending on the environmental conditions[J]. Physiology and Biochemistry of Cultivated Plants, 1984,16(1) :65 - 72. 被引量:1