Genetic analysis of inflorescence length in Solanum pimpinellifolium

Crop inflorescences are directly related to yield. The wild tomato species Solanum pimpinellifolium displays rich genetic diversity. However, limited information is available regarding the inflorescence of this wild population. Here, 300 Solanum pimpinellifolium accessions were investigated to uncover the genetics of inflorescence length (IFL) over two seasons. The results revealed significant genetic variation in IFL among S. pimpinellifolium accessions, with a continuous distribution ranging from 3.68 to 38.13 cm. Few accessions exhibited long inflorescences. The IFL was greatly influenced by environmental factors and the 3rd, 4th and 5th IFL performed relatively stable. The broad-sense heritability ranged from 53.40 to 80.51