WANG Lei1，LIU Jinwen1*，TIAN Jinxiang2，ZHANG Chenling1，WANG Jinfang1，WANG Wenbin1，TIAN Chaoyuan2
1Zhongmu County Agriculture and Rural Affairs Working Committee，Zhengzhou 451450，Henan，China；2Zhengzhou Zhongmou County Watermelon and Vegetable Research Institute，Zhengzhou 451450，Henan，China
Abstract：‘Nongtian L5K’is a new medium fruit type watermelon F1 hybrid of developed by crossing inbred line‘LA304’as female parent and inbred line‘LA76’as male parent．It is of medium-late maturity．The whole growth period in early spring cultivation is about 103 days，and the fruit development period is about 35 days．The whole growth period in autumn delayed cultivation is about 81 days，and the fruit development period is about 28 days．The plant has strong growth potential．It is easy to bear melon．Its fruit is nearly of round shape．The melon peel is light green in color covered with dark green sharp tooth-shaped strips．There is small quantity of wax powder．The peel is about 1.0 cm in thickness．The flesh is red in color，no hollow，and crisp．It tastes sweet and refreshing．The soluble solids content in the center is 13.0%-14.0%，and that in the edges is 10.3%-11.2%．The single melon weight is about 5 kg．It is moderately resistant to Fusarium wilt．It can yield about 90 t · hm-2．It is suitable for planting in spring and autumn in protected fields of Henan region．
