优质丰产番木瓜新品种紫晖的选育  

Breeding of a new papaya cultivar Zihui with good quality and high yield

作　　者：魏岳荣[1] 杨护[1] 周陈平 邝瑞彬[1] 黄炳雄[1] 杨敏 WEI Yuerong;YANG Hu;ZHOU Chenping;KUANG Ruibin;HUANG Bingxiong;YANG Min(Institute of Fruit Tree Research,Guangdong Academy of Agricultural Sciences/Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization,Ministry of Agriculture and Rural Affairs/Guangdong Province 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6期1129-1132,共4页Journal of Fruit Science

基　　金：广东省现代农业产业技术体系创新团队建设项目(2021KJ116);广东省重点领域研发计划项目(2019B020214005);佛山市财政专项资金-2022年度共建广东农业科技示范市项目;广东省基础与应用基础研究基金项目(2021A1515010739);广州市科技计划项目(202102020038)。

摘　　要：紫晖是由泰国红×GZ201301301杂交选育出的优质、丰产番木瓜新品种。该品种植株生长旺盛,冠幅290 cm,茎干高195 cm,茎干粗45 cm,叶片长90 cm,叶片宽93 cm,叶柄呈深紫色,长102 cm。花序主轴呈深紫色,平均长约7.5 cm,花数量多。果实长椭圆形,果肩有紫色印圈,果皮橙黄色,果面光滑,果肉橙红色,厚约3.3 cm,口感嫩滑清甜。平均单果质量1142.7 g,平均纵径21.4 cm,横径10.8 cm,纵横径比为1.98。可溶性固形物含量(w,后同)11.5%,总糖含量10%,总酸含量0.21%,维生素C含量1.01 mg·g^(-1),粗纤维含量0.6%,品质优良。在珠江三角洲地区,组培苗春季定植至始花时间约63 d,定植至始采时间约180 d,最低结果部位离地约34.5 cm,连续坐果能力强,节位坐果率为92.2%;丰产性强,当年平均单株产量64.4 kg,每666.7 m^(2)产量7728 kg。适应性良好,但感环斑花叶病毒病。常温条件下保鲜贮藏期为7 d。适宜在广东省番木瓜产区及类似生态区栽培,宜采用轮作或选择新区种植。Zihui is a new top-quality and high-yield papaya cultivar,which was selected from the first hybrid with Taiguohong as the female parent and the small-fruit Hawaiian type GZ201301301 as the male parent in 2021.Through artificial pollination in 2016,358 hybrid seeds and 296 seedlings were got.It was initially selected in 2017 for its fast growth rate,strong growth vigor,low fruit-bearing position,strong continuous fruit-bearing capacity,smooth peel,good fruit shape,high yield and good quality.The clone seedlings were obtained by grafting and tissue culture with its lateral buds after the stem was cut off.After variety test and regional adaptability test at 3 sites(including Guangzhou,Foshan and Zhanjiang)over 3 years from 2018 to 2020,it was finally selected in 2020,and certificated by the Crop Varieties Certification Committee of Guangdong Province in 2021.The plant grows vigorously,showing as 290 cm in crown width,195 cm in plant height from ground to apical meristem,45 cm in stem circumference,90 cm in leaf length,93 cm in leaf width and 102 cm in dark purple petiole.The inflorescence has multi-flower properties,and the main axis of the inflorescence is dark purple,with an average length of about 7.5 cm.The corolla is purple,and the length is about 3.4 cm.Fruit shape is oblong oval,with an obvious purple circular mark on the fruit base.The average single fruit weight is 1142.7 g,with an average longitudinal diameter of 21.4 cm,a transverse diameter of 10.8 cm,and the ratio of 1.98.The peel is smooth and orange yellow after ripening.The flesh is of good quality,with orange-red color,3.3 cm in thickness,and the taste is tender,smooth and sweet.The contents of soluble solid,total sugar,total acid,vitamin C,and crude fiber are 11.5%,10%,0.21%,1.01 mg·g^(-1) and 0.6%,respectively.When the tissue culture seedlings were planted in the Pearl River Delta Region in spring,the period from planting to first flowering was about 63 d,and the first fruit insertion height,defined as the distance from the ground to peduncle of

关 键 词：番木瓜 新品种 紫晖 优质 丰产 

分 类 号：S667.9[农业科学—果树学]