‘Dongnong 812' is a new cucumber F_1 hybrid bred by crossing ‘D1158' as female parent and ‘D0708-2' as male parent.It is suitable to be cultivated in protected fields of Northern China.It has good quality,strong resistance to diseases,and high yield.It is of fresh-eating type and has strong growth vigor.It is tolerant to low temperature and weak light,and high resistant to Fusarium wilt,resistant to downy mildew and powdery mildew.The first female flower sets on the 4-5 th node.Its fruit is of short cylindr...