火龙果新品种红水晶6号的选育  

Breeding report of a new pitaya cultivar Hongshuijing No.6

作　　者：李俊成 戴宏芬[1] 孙清明[1] LI Juncheng;DAI Hongfen;SUN Qingming(Institute of Fruit Tree Research,Guangdong Academy of Agricultural Science/Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization,Ministry of Agriculture and Rural Affairs/Guangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree Research,Guangzhou 510640,Guangdong,China)

机构地区：[1]广东省农业科学院果树研究所·农业农村部南亚热带果树生物学与遗传资源利用重点实验室·广东省热带亚热带果树研究重点实验室,广州510640

出　　处：《果树学报》2022年第10期1973-1976,共4页Journal of Fruit Science

基　　金：广州市科技特派员项目(20212100031);省科技厅项目(粤科农字﹝2021﹞151号KTP20210078);广东省乡村振兴战略专项(粤农计﹝2018﹞37号、粤财农﹝2019﹞73号);广东省现代农业产业技术体系优稀水果创新团队建设项目(2019KJ116);广东省农业科学院院长基金(202013)。

摘　　要：红水晶6号火龙果是从白水晶×光明红杂交子一代中选育获得的火龙果新品种。该品种果实近圆球形,平均单果质量295.0 g,果皮红色,果肉紫红色,肉质爽滑、风味清甜。可溶性固形物含量(w,后同)14.2%,可滴定酸含量0.19%。植株生长旺盛,定植后2年开始结果,5年后产量稳定,果实生育期28~40 d,花期从5月底至11月底,每年开花10~12批次,每666.7 m^(2)产量可达2 288.0 kg,丰产性能良好,品质佳,遗传性状稳定。对溃疡病抗性强于父母本,4℃下可贮藏20~30 d,在火龙果各产区均可种植。Hongshuijing No. 6 is a new cultivar with outstanding quality, adaptability and a consistent yield. The seedling was derived from a cross between Baishuijing and Guangminghong in 1998 at the experimental field. The flesh of Baishuijing is white and translucent, with high sweetness and outstanding quality. However, because the fruit is small and the yield is limited, it is grown commercially only as a high-end fruit within a small region. The male parent, Guangminghong, has red flesh, large fruit, great yield and excellent overall qualities, but the fruit quality is relatively low. It is one of the most extensively produced types in China's Mainland. Approximately 3000 hybrid seeds were obtained from the cross.After seed sowing, 2000 strong seedlings were grafted, and 1560 individual plants became viable. After years of multi-point observation and analysis, one single plant was found to have excellent performance,and the strain all showed strong adaptability, fecundity, stable yield and genetic stability. The majority of branches of Hongshuijing No. 6 are quadrangular, and the juvenile stems are light green with light red ribbed borders that turn dark green later. Axillary buds evolve into spines with a length of 0.2-0.4 cm.The petals are white, sepals are orange-red with a red edge, style is 22.8 cm long with 24-30 stigma lobes, and the stigma lobes are yellow-green in color. The fruit is suborbicular, with an average weight of295.0 g. The skin is red and 0.28 cm thick, the flesh is purple-red with an average longitudinal diameter of 8.5 cm and an average transverse diameter of 8.4 cm. The flesh is crisp and sweet, with an excellent flavor and consistent quality. The soluble solids and titratable acid contents were 14.2%, and 0.19%, respectively. It takes 16-18 days from bud break to flowering, and blooms in 10-12 batches from late May to late November. Each batch of blooms lasts four days, opening at 20:00 and wilting at 8:00 the next morning, depending on the seasons or weather. It possesses moderate canker dis

关 键 词：火龙果 新品种 红水晶6号 杂交育种 

分 类 号：S667.9[农业科学—果树学]