摘要
Ratoon rice is of great significance in ensuring rice production due to its high economic benefits and low-cost inputs.However,current research on its cultivation is limited,and there is a shortage of specialized varieties developed for this purpose.In this study,we investigated the regeneration rates of hybrid rice varieties from the Chunyou and Zheliangyou series,as well as the Zhehui series restorer lines used in production.The differences in ratooning ability between different varieties and their respective parents were analyzed.Additionally,to preliminarily explore the genetic basis of the ratooning potential of indicajaponica hybrids,three japonica male sterile lines were used as female parents to make incomplete diallel crosses with 11 indicaclinous indica-japonica restorer lines.
基金
funded by the Shanghai Agricultural Science and Technology Innovation Project,China(Grant No.B2024003)
the Zhejiang Province Major Project for Crop Variety Breeding,China(Grant No.2021C02063-2-3)。
