Birdsfoot trefoil （Lotus corniculatus L.） is high in nutritional value and adapted to slightly acidic, droughty, infertile, or wet soils. However, the impermeable seed coat restricts water imbibition and results in ...Birdsfoot trefoil （Lotus corniculatus L.） is high in nutritional value and adapted to slightly acidic, droughty, infertile, or wet soils. However, the impermeable seed coat restricts water imbibition and results in poor seed germination and subse- quent stand establishment. The aim of this study was to identify the dormancy mechanism of Birdsfoot trefoil seeds, and investigate the suitable pretreatment to overcome the poor seed germination. Germination behavior was characterized by using the final germination percentage and the mean germination time. The results indicated that coat thickness of dormant seeds was significant larger. The average hard seed rate was up to 92.3%. It was found that mechanical scarification, chemi- cal scarification with concentrated sulfuric acid （98% H_2SO_4）, and gibberellic acid soaking following freezing below zero temperature were effective in reducing hard- seededness and lead to increases of seed germination.展开更多
Dear Editor,Tartary buckwheat(Fagopyrum tataricum)has high nutritional and health value;however,its hard seed hull limits production and economic potential.This study identified the pectin methylesterase gene FtPME58 ...Dear Editor,Tartary buckwheat(Fagopyrum tataricum)has high nutritional and health value;however,its hard seed hull limits production and economic potential.This study identified the pectin methylesterase gene FtPME58 as a key regulator of seed hull thickening through modulation of pectin content,providing a promising target for breeding easy-to-dehull varieties.展开更多
基金Supported by National Natural Science Foundation of China(No.31601997)~~
文摘Birdsfoot trefoil （Lotus corniculatus L.） is high in nutritional value and adapted to slightly acidic, droughty, infertile, or wet soils. However, the impermeable seed coat restricts water imbibition and results in poor seed germination and subse- quent stand establishment. The aim of this study was to identify the dormancy mechanism of Birdsfoot trefoil seeds, and investigate the suitable pretreatment to overcome the poor seed germination. Germination behavior was characterized by using the final germination percentage and the mean germination time. The results indicated that coat thickness of dormant seeds was significant larger. The average hard seed rate was up to 92.3%. It was found that mechanical scarification, chemi- cal scarification with concentrated sulfuric acid （98% H_2SO_4）, and gibberellic acid soaking following freezing below zero temperature were effective in reducing hard- seededness and lead to increases of seed germination.
基金supported by grants from the National Natural Science Foundation of China(nos.32070365 to Z.S.,32170269 to X.Z.,31871691 to H.Z.,and 32300280 to W.Y.)the Grand Science and Technology Special Project in Shanxi Province(202101140601027)+3 种基金the Open Project of Houji Laboratory(202304010930003-07)the Special Fund for Science and Technology Innovation Teams of Shanxi Province(202204051002013)the Key Research and Development Program of Shanxi Province(2022ZDYF110)to Z.S.the China Agriculture Research System of MOF and MARA(CARS-07-A-2 to L.Liu).
文摘Dear Editor,Tartary buckwheat(Fagopyrum tataricum)has high nutritional and health value;however,its hard seed hull limits production and economic potential.This study identified the pectin methylesterase gene FtPME58 as a key regulator of seed hull thickening through modulation of pectin content,providing a promising target for breeding easy-to-dehull varieties.
