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

微胚乳玉米籽粒中淀粉积累规律的研究(英文)

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：《Agricultural Science & Technology》2009年第3期84-87,共4页农业科学与技术（英文版）

基　　金：Supported by the National Natural Science Foundation of China(30671307);the Innovation Project of Postgraduate Educationof Guangxi (2006105930901D08)~~

摘　　要：[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 embryo) of MEM(micro-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 MEM was slow, and MEM has widely variation on starch accumulation.[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 embryo） of MEM（micro-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 MEM was slow, and MEM has widely variation on starch accumulation.

关 键 词：MEM （micro-endosperm maize） STARCH ACCUMULATION 

分 类 号：S513[农业科学—作物学]