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Stubble rolling primes axillary bud regeneration and increases grain yield in mechanically harvested ratoon rice in South China 认领 引用 被引量：1
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作者 Jinying Li Bianhong Zhang +12 位作者 Jiahui Song Danyang Li Mengying Chen Zhihan Chen Bin Qin Hailong Xu Jingnan Zou Peiying Weng Wenfei Wang Changxun Fang Hongfei Chen Zhixing Zhang Wenxiong Lin 《The Crop Journal》 SCIE CSCD 2026年第4期1410-1419,共10页
Rice ratooning produces a second harvest from the growth of axillary buds that remain on the stubble after the main crop is harvested.Stubble rolling after mechanical harvesting may regenerate roots and tillers.The ob... Rice ratooning produces a second harvest from the growth of axillary buds that remain on the stubble after the main crop is harvested.Stubble rolling after mechanical harvesting may regenerate roots and tillers.The objective of this study was to elucidate the relationships between axillary bud regeneration and yield formation in ratoon rice.The experimental approach was to measure yield and axillary bud regeneration traits under full-rolling and non-rolling treatments across three sites in Fujian Province,China over two years.Full-rolling increased grain yield by 7.59%-8.40% and the regeneration capacity of axillary buds by 9.45%-17.11%.Further analyses revealed that full-rolling increased the activities of carbon-and nitrogen-metabolizing enzymes in regenerating axillary buds,as well as the expression of genes involved in carbohydrate and nitrogen metabolic pathways.Mechanical harvesting combined with stubble rolling that presses rice stubble close to the soil surface induces a regenerative growth pattern that ultimately increases ratoon rice yield. 展开更多
关键词 Ratoon rice Full-rolling and non-rolling treatments Regenerating axillary buds Carbon and nitrogen allocation in ratooning plants
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