为探究野大豆(Glycine soja Sieb)荚果形成及种子萌发特性,以湖南省长沙市浏阳市野生状态下的野大豆群落为试验材料,对野大豆不同生殖生长期荚果生长发育变化、种子变化、千粒重等指标进行观测。结果表明,野大豆生殖生长时期为42 d,植...为探究野大豆(Glycine soja Sieb)荚果形成及种子萌发特性,以湖南省长沙市浏阳市野生状态下的野大豆群落为试验材料,对野大豆不同生殖生长期荚果生长发育变化、种子变化、千粒重等指标进行观测。结果表明,野大豆生殖生长时期为42 d,植株上层种子先于植株下层种子成熟,为无限结荚习性,种子千粒重7.0712~7.1666g。采用双因素试验设计,探讨不同贮藏时间和是否划破种皮对种子萌发特性的影响,结果表明,划破种皮种子发芽参数显著高于未划破种皮种子处理组(P<0.05);贮藏时间为120 d时划破种皮种子与未划破种皮种子的发芽率、发芽势和发芽指数显著高于其他处理组。该结果有助于指导野大豆种质资源的收集和保存。展开更多
Grain soybean(Glycine max(L.)Merr.)shows potential as a forage crop following its introduction from low to high latitudes due to in its growth phenotype.However,the application of this approach is impeded by the diver...Grain soybean(Glycine max(L.)Merr.)shows potential as a forage crop following its introduction from low to high latitudes due to in its growth phenotype.However,the application of this approach is impeded by the diverse ecological types of soybean,their adaptability to the introduction,and the uncertainty surrounding the growth phenotype post-introduction.This study introduced 24 grain soybean varieties from low-latitude regions(22-31°N)to the high-latitude northwestern Loess Plateau(39°N)between 2018 and 2019.The growth phenotypes were observed,and their forage productivity potential was assessed.All varieties displayed delayed flowering following cross-latitude introduction,with the vegetative growth phase of some varieties even exceeding their entire growth duration at their origin.Rapid dry matter accumulation rates indicated growth adaptation performance and formed the basis for soybean forage yield.Varieties from the tropical South China region exhibited significant yield advantages,with dry matter yields of 8.97-14.68 t ha^(-1)and crude protein yields of 1.44-2.51 t ha^(-1).Varieties HX3 and GX7 from this region demonstrated optimal growth adaptability and productivity in the cross-latitude environment,achieving the highest dry matter yields of 14.68 and 13.86 t ha^(-1),respectively.As a result,HX3 and GX7 are recommended for local farming systems to provide high-quality forage.The cross-latitude introduction of soybean is proposed as a viable and efficient strategy for forage improvement and application.展开更多
文摘为探究野大豆(Glycine soja Sieb)荚果形成及种子萌发特性,以湖南省长沙市浏阳市野生状态下的野大豆群落为试验材料,对野大豆不同生殖生长期荚果生长发育变化、种子变化、千粒重等指标进行观测。结果表明,野大豆生殖生长时期为42 d,植株上层种子先于植株下层种子成熟,为无限结荚习性,种子千粒重7.0712~7.1666g。采用双因素试验设计,探讨不同贮藏时间和是否划破种皮对种子萌发特性的影响,结果表明,划破种皮种子发芽参数显著高于未划破种皮种子处理组(P<0.05);贮藏时间为120 d时划破种皮种子与未划破种皮种子的发芽率、发芽势和发芽指数显著高于其他处理组。该结果有助于指导野大豆种质资源的收集和保存。
基金funded by the National Key R&D Program of China(2022YFD1300803)the China Agriculture Research System of MOF and MARA(CARS-34)。
文摘Grain soybean(Glycine max(L.)Merr.)shows potential as a forage crop following its introduction from low to high latitudes due to in its growth phenotype.However,the application of this approach is impeded by the diverse ecological types of soybean,their adaptability to the introduction,and the uncertainty surrounding the growth phenotype post-introduction.This study introduced 24 grain soybean varieties from low-latitude regions(22-31°N)to the high-latitude northwestern Loess Plateau(39°N)between 2018 and 2019.The growth phenotypes were observed,and their forage productivity potential was assessed.All varieties displayed delayed flowering following cross-latitude introduction,with the vegetative growth phase of some varieties even exceeding their entire growth duration at their origin.Rapid dry matter accumulation rates indicated growth adaptation performance and formed the basis for soybean forage yield.Varieties from the tropical South China region exhibited significant yield advantages,with dry matter yields of 8.97-14.68 t ha^(-1)and crude protein yields of 1.44-2.51 t ha^(-1).Varieties HX3 and GX7 from this region demonstrated optimal growth adaptability and productivity in the cross-latitude environment,achieving the highest dry matter yields of 14.68 and 13.86 t ha^(-1),respectively.As a result,HX3 and GX7 are recommended for local farming systems to provide high-quality forage.The cross-latitude introduction of soybean is proposed as a viable and efficient strategy for forage improvement and application.
