作 者：
唐艳;陈传武;付慧敏;伊华林;邓崇岭;邓光宙;刘冰浩;李丁凤
单 位：
灵川县水果生产技术指导总站;广西特色作物研究院·广西柑橘生物学重点实验室;华中农业大学
摘 要：
‘桂夏橙1号’是从‘阿尔及利亚夏橙’芽变中选育的柑橘新品种。果实圆球形或椭圆形,果皮橙黄色,果面较粗糙,果顶圆,果肉橙黄色,味酸甜,多汁,有香气;果大,单果质量197.8~259.7 g,果实横径71.0~80.3 mm,纵径68.6~80.1 mm,果形指数0.94~1.03;种子数平均1.68粒,一般1~3粒。可食率70.28%~76.47%,果汁率44.99%~54.39%,可溶性固形物含量(ω)10.2%~13.3%,每100 m L果汁中含维生素C 45.96~55.04 mg,柠檬酸0.68~1.20 g,全糖7.18~9.65 g,固酸比9.92~15.07;果实较化渣,品质好。果实生育期320~380 d,在桂林灵川3月下旬至5月中下旬成熟。适合广西省桂林以南及生态条件相似地区栽培,盛果期每hm2产量可达60 000 kg,丰产性好。
译 名：
Breeding report of a new valencia orange cultivar ‘Guixiacheng No. 1'
作 者：
TANG Yan;CHEN Chuanwu;FU Huimin;YI Hualin;DENG Chongling;DENG Guangzhou;LIU Binghao;LI Dingfeng;Guangxi Academy of Specialty Crops·Guangxi Key Laboratory of Citrus Biology;Huazhong Agricultural University;Fruit Technical Guidance Station of Lingchuan County;
关键词：
Valencia orange;;New cultivar;;‘Guixiacheng No.1';;Bud mutation
摘 要：
‘Guixiacheng No.1'is a new valencia orange cultivar which was selected from bud mutation of‘Algerian Valencia Orange'for its big fruit size, high-quality and excellent appearance. The variation maternal plant was discovered in an orchard of‘Algerian Valencia Orange'which was planted in 1999 in Tiekeng village, Dajing town, Lingchuan county. This variety has a spheroid tree. The tree is strong vigorous. For a 9-year-old tree on poncirus trifoliate rootstock, the average height is 320.0 cm; average trunk girth is 29.8 cm and average crown size is 353.3 cm × 325.1 cm. Leaves on spring shoots is oval and apex mucronate. Leaf length is 8.75-14.21 cm, leaf width is 4.24-7.31 cm. and leaf index is 1.68-2.26. The flower is big, white and complete flower. Flower petals length is 18.9-24.8 mm, flower petals width is 5.7-8.9 mm, stamen number is 19-22. The fruit is mainly round or oval with orange peel and rough surface. The fruit top is round and the flesh is orange yellowish with sweet-sour flavor and aroma.The fruit weight is 197.8-259.7 g; fruit horizontal diameter is 71.0-80.3 mm, fruit longitudinal diameter is 68.6-80.1 mm; fruit shape index is 0.94-1.03; the number of seeds is 1-3. The fruit edible rate is70.28%-76.47%; Juice rate is 44.99%-54.39%; Per 100 m L of fruit juice, containing vitamin C is 45.96-55.04 mg; titratable acid is 0.68-1.20 g; total sugar is 7.18-9.65 g; the content of total soluble solid is10.2%-13.3%; the soluble solids to acidity ratio is 9.92-15.07. The fruit development period is about320-380 days. And its maturity period is from the late March to the late May in Lingchuan county of Guilin. The new cultivar has high yield potential. The yield could reach 60 000 kg per hm~2. The suitable cultivation regions of‘Guixiacheng No.1'are in the south of Guilin in Guangxi where are suitable for the planting of Valencia orange. Orchards should be built in acidic soils which has ability of moisture and fertilizer retention. Virus-free seedlings should be planted. The best field planting density is 667 to1 111 per hm2 in planting spacing 3 ×(3-5) m. Main stem is 0.4-0.5 m high with 2-3 main branches, and the trees should be trained in natural roundhead shape. Young trees are inclined to sprout axillary flower buds;the excess axillary flower buds should be removed to avoid looting nutrients. For adult trees, 2,4-D liquid at a concentration of 30-50 mg·kg~(-1) should be sprayed on tree for 2 or 3 times from the middle of November. It could effectively reduce fruit drop. After harvest, a certain amount of organic fertilizer should be given. Prevention of disease and insects should be taken seriously, especially Huanglongbing control.
