Institute of Citrus Science Research of Ganzhou
National Modern Agriculture (Citrus) Industrial Technology System Special Fund (CARS), Key Project of Ganzhou Key R&D Program - Modern Agricultural Industry (2022XM061209)
Through cooperation with the fruit industry authorities of various counties (districts) in Gannan and visits to fruit farmers, the systematic investigation and collection of wild Fortunella Hindsii germplasm resources were carried out in Gannan, and a total of 716 wild Fortunella Hindsii germplasm resources were collected, identified and evaluated. The results showed that the Gannan Fortunella Hindsii was distributed in Anyuan, Longnan, Zhanggong, Chongyi, Yudu, Xinfeng and other counties (districts). The trait statistics showed that there were differences in tree posture, internode length, thorn number, thorn length, leaf length, leaf width, petiole, leaf shape, wing leaf, leaf tip lack of engraving, single fruit weight, fruit surface main-color, fruit surface variegation, seed number, oil cell obviousness, peel thickness 16 personality traits, and further cluster analysis based on those difference traits found that they could be divided into 4 categories and 8 subcategories. Disease resistance identification preliminarily screened a batch of single plants resistant to Citrus Bacterial Canker Disease, Citrus Tatter Leaf Virus, Citrus Exocortis Viroid and Citus Tristeza Virus. According to the needs of citrus industry, thornless, seedless, big-fruit, late-ripening and disease resistant plants were screened, which have clear utilization value for the selection and breeding of new varieties of camellis and the development of citrus industry.