‘Dongnong 812’ is a new cucumber F₁ 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 4-5th node．Its fruit is of short cylindrical type with emerald
peel in color．Its fruit is 15-18 cm in length，and 3.5-4.0 cm in diameter．The single fruit weight is 120-140 g．
It has high quality and high yield．The commercial fruit rate is over 90%．It can yield about 60 t·hm^-2．It is
suitable for greenhouse cultivation at 3 Northeastern Provinces and Inner Mongolia of China in spring and autumn．