优质耐贮运彩肉小果型西瓜新品种中丽20的选育

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中图分类号：S651 文献标志码：A 文章编号：1009-9980（2025）06-1373-04

Abstract： Zhongli 2O is a new small-sized colored-flesh watermelon selected from a cross between a red-fleshed watermelon 19F22 and a yelow-fleshed watermelon 19Fo9. The entire growth period was about 95 days，and the fruit growth period was about 3O days.The male and female plants are monoecious，with the first female flower on 7th nodes and the male flower on 4th nodes. The fruit was oval shape，with light green rinds covered in dark stripes.The average weight of single fruit could reach over 2kg .The flesh was yellow-red inlaid，commonly known as rainbow flesh.The soluble solid content of the center fleshwasabout 14% and 11% ofthe edge.The fleshwasdelicate，crispy，and fruity flavored. The variety comparison experiments were conducted in Zhengzhou， Xinxiang， Xuchang in Henan Province from 2020 to 2021，with the control variety of L600.The field trails were conducted with hanging vine cultivation and double vine pruning. The performance of Zhongli in terms of the single fruit weight，contentofsolublesolid content，yield，storability，transportabilityand portability was much better than that of the control. It had tolerance to low temperature and weak light and general heat tolerance during fruit ripening，but no resistance to wilt and viral diseases. It would be more adapted for early spring planting in protected cultivation facilities，and more suitable for hanging vine cultivation， with single vine pruning， maintaining one fruit per plant， the recommended planting density woud be 1800 plants per 666.7m2 . Zhongli 20 was registered as a non-major crop variety by the Ministry of Agriculture and Rural Affairs in 2024.

KeyWords：Small-fruit watermelon; New cultivar; Zhongli 20; Colored flesh watermelon

西瓜（Citrulluslanatus）是我国重要的经济作物，我国西瓜种植面积、产量连续多年位居全球第一，但在品种选育方面仍需加强。（剩余5024字）