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Chinese Agricultural Science Bulletin ›› 2024, Vol. 40 ›› Issue (16): 63-71.doi: 10.11924/j.issn.1000-6850.casb2023-0511

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Comparative Experiment of Non-transgenic New Papaya Varieties

WU Xiaming1(), LIN Wei2, YANG Min1, ZHOU Chenping1, KUANG Ruibin1, DAI Hongfen1, YANG Junxian3, YANG Meizhen4, WEI Yuerong1()   

  1. 1 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/ Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou 510640
    2 Zhanjiang Academy of Agricultural Sciences, Zhanjiang, Guangdong 524094
    3 Pingsha Town Social Affairs Service Center of Jinwan District, Zhuhai, Guangdong 519055
    4 Pingsha Town Agricultural and Rural Office of Jinwan District, Zhuhai, Guangdong 519055
  • Received:2023-07-11 Revised:2023-12-25 Online:2024-05-30 Published:2024-05-30

Abstract:

This study aims to select several new papaya varieties with better comprehensive agronomic traits and suitable for large-scale cultivating in Guangdong Province. A comparative analysis of the plant growth, yield, resistance, fruiting characteristics, fruit commercialization and quality were performed with new papaya varieties ‘Zihui’, ‘Huanghuayou’, and ‘Zhufeng’ in three different regions, ‘Thai Red’ as the control. The plants of four varieties grew luxuriantly with better comprehensive agronomic traits in all pilot sites. Furthermore, ‘Zihui’ and ‘Huanghuayou’ exhibited low fruiting parts, medium inflorescence main axis length, high fruit consistency and node fruit setting rate, stable yield, smooth fruit surface with good color. Besides, the fruits of ‘Zhufeng’ had high sugar content, high and stable yield, and endurable storage. The above new varieties showed excellent quality, and could be used as non-transgenic high-quality and high-yield new varieties. ‘Huanghuayou’ and ‘Zhufeng’ papaya were suitable for fresh food, while ‘Zihui’ was good for both fresh food and processing. All the three new papaya varieties are suitable for promotion in Guangdong or similar climate producing areas.

Key words: Carica papaya, non-transgenic new varieties, yield, quality, comparative test