摘要
对比汕优 6 3稻草与同年种植的早稻 (博优、 837)、中稻 (马协 6 3)、晚稻 (汕优 6 4、马协 6 4)稻草在化学成分和生物降解等方面与其产量间的相互关系。汕优 6 3较强的嗜硅能力奠定了其高产高抗的生理基础 ,硅的溶解比率影响稻草的化学成分和降解效率 ,分布在叶片与叶鞘中的硅有利于促进水稻光合作用 ,但成了微生物降解稻草的屏障 ,而叶鞘与茎秆中较高的可溶性硅含量和稻草较低的氮含量与品种的高营养传输效率有关。水稻生产管理和外界气候条件可以改变稻草中硅的溶解特性 ,从而改良稻草的营养品质。
Comparison was carried out among rice straw of Shanyou 63 and straws from early season (Boyou,837),middle season (Maxie 63),and late season rice (Shanyou 64,Maxie 64) for their chemical composition,bio\|degradation characters,grain\|straw productions,as well as the correlation of those factors.Strong silicon\|uptaking ability of Shanyou 63 supported its high yield and resistibility,while the solubility of silicon in straw affected its chemical composition and degradability.Silicon distributed on the surface of leaf and sheath benefited the photosynthesis,on the contrary,it hindered the microbial degradation.Higher content of soluble silica in sheath and stem,lower nitrogen content in straw of Shanyou 63 were related to its higher nutrient\|transfering ability.Cultivation management and climate conditions may modify the solubility of silicon in rice,therefore improved straw nutritive quality.
出处
《福建农业学报》
CAS
2001年第2期1-5,共5页
Fujian Journal of Agricultural Sciences
基金
挪威农业大学资助博士项目部分研究内容
