微胚乳玉米籽粒中淀粉积累规律的研究  

Research on Laws of Accumulation of Starch in Micro-endosperm Maize Kernel

作　　者：甘凤琼[1] 张亚平[1] 杨庆锋[1] 吴子恺[1] 

机构地区：[1]广西大学农学院,广西南宁530005

出　　处：《安徽农业科学》2009年第21期9922-9924,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(30671307);广西研究生教育创新计划项目(2006105930901D08)

摘　　要：[目的]研究微胚乳玉米籽粒中淀粉积累规律。[方法]以高油115玉米作为对照，对微胚乳玉米胚和非胚部位中淀粉的积累规律进行研究。[结果]微胚乳玉米胚部位的淀粉积累速度稍低于高油115，非胚部位的淀粉积累速度则远低于高油115，收获时高油115的淀粉百分含量达微胚乳玉米的3．4—4．5倍。高油115收获时的胚淀粉重比只有3％-4％，而微胚乳玉米中胚淀粉重比可达16％-22％。此外，不同微胚乳玉米材料淀粉积累速度不尽一致，收获时不同微胚乳玉米材料的淀粉含量也具有较大差异。[结论]微胚乳玉米籽粒中淀粉积累缓慢。[ Objective ] The experiment aimed to study laws of accumulation of starch in micro-endosperm maize kernel. [ Method ] The laws of accumulation of starch in maize embryo and OSK（ the other section of a kernel except enthryo） of MEM（ mlcro-endosperm maize） were studied in this experiment by taking Gaoyou 115 maize as control. [ Result ] The starch accumulation speed of MEM embryo was slightly lower than that of Gaoyou115 and the starch accumulation speed of MEM OSK was far lower than that of Gaoyou 115, so the starch content of the whole kernel of Gaoyou 115 was 3.4 to 4.5 times as high as that of MEM during harvesting. The embryo starch weight ration of Gaoyou 115 maize during harvesting was only 3% to 4% while that of MEM was 16% to 22%. Moreover, starch accumulation speeds of different MEM materials were different and there were significant differences in starch content during harvesting among different MEM materials. [ Conclusion ] The starch accumulation in micro-endosperm maize kernel was slow.

关 键 词：微胚乳玉米 淀粉 积累 

分 类 号：Q945.65[生物学—植物学]