共 7 条
[2]
CANOVA A, 1963, TECH COMMUN BUR HORT, V30, P39
[3]
CROPLEY R, 1968, DAL DDR BERLIN, V97, P235
[4]
KRISTENSEN HR, 1963, TECH COMMUN BUR HORT, V30, P33
[5]
WELSH M. F., 1961, Canadian Plant Disease Survey, V41, P123