Abstract：‘Zhongnong No.20’is a new cucumber F1 hybrid using inbred line 02484 as maternal parent and 02465 as paternal parent.Its fruit is about 30-35 cm in length with short neck and dark shining green skin.The fruit neck is less than 1/8 of the fruit length.It is good for supermarket sale.It has high resistance to ZYMV，WMY，resistance to angular leaf spot，downy mildew，powdery mildew，middle resistance to Fusarium wilt and CMV.The yield is over 150 t·hm-2.It is suitable for open field cultivation in spring or summer and autumn.
