早熟西瓜新品种开美六号的选育

A new watermelon cultivar Kaimei No. 6 with early maturation

摘要

开美六号是以自交系开封1528为母本、自交系开封1505为父本杂交选育的早熟西瓜新品种。华北地区春季大棚栽培全生育期96 d左右，果实发育期29 d左右。易坐果，果实圆形，果皮绿色上覆墨绿色锯齿条带，果皮表面覆有蜡粉，果皮厚度1.1 cm, 单果质量5.2 kg左右；瓤色鲜红，瓤质酥脆。中心可溶性固形物含量(w,后同)12.2%、边部10.9%。植株长势中等，耐低温弱光性好，低温环境下果实不易形成空心、厚皮。大棚爬地栽培667 m²产量3400 kg左右，适宜华北地区早春设施栽培。2023年12月通过农业农村部非主要农作物品种登记。

Abstract

Kaimei No. 6 is an early maturing watermelon cultivar developed by crossing Kaifeng 1528 as female parent and Kaifeng 1505 as male parent. The fruit matures 96 days after sowing and about 29 days after flowering cultivated in plastic greenhouse in North China in spring. It has good fruit setting rate, the round-shaped fruit is covered with epidermis wax, the green pericarp is regularly ornamented by dark-green serrated strips, the pericarp thickness is 1.1 cm, the average fruit weight is 5.2 kg; the bright red flesh is crispy, sweet, with 12.2% sugar content in fresh center and 10.9% in subcenter. It has good growth, tolerance to low temperature and weak light, few hollow and thick-pericarp fruits formed under low temperature in the fruit setting stage. The average yield can reach above 3400 kg per 667 m² in greenhouse cultivation, it is suitalbe for protected cultivation in early spring in North China.

关键词

西瓜 / 新品种 / 开美六号 / 早熟

Key words

Watermelon / New cultivar / Kaimei No. 6 / Early maturity

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基金资助

国家西甜瓜产业技术体系(CARS-25)

开封市重点研发专项(23ZDYF008)

开封市科技攻关项目(2202004)