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高淀粉玉米是指籽粒淀粉含量达70%以上的专用型玉米,而普通玉米只有60%~69%。高淀粉玉米的类型是根据我国颁布的高淀粉玉米分级标准来划分:国家一级指玉米籽粒中粗淀粉含量达到75%以上,二级是指玉米籽粒中粗淀粉含量达72%以上,三级是指玉米籽粒粗淀粉含量达69%以上,曲辰11号淀粉77.16%,是由我公司选育的优质、高产、稳产高淀粉玉米新品种。1选育过程1.1母本自交系“SU-2-4”是于1998年用农大108与黔9501单交种杂交为基础材料,1999年种植后选择优秀单株S1→2000
High-starch corn refers to special-purpose corn with a grain starch content of over 70%, compared with only 60% -69% of ordinary corn. The type of high-starch corn is classified according to the high-starch corn grading standards promulgated in China: the first-level refers to the crude starch content of corn kernels reaching more than 75%, the second-class refers to the crude starch content of corn kernels reaching more than 72% Refers to the crude corn starch content of more than 69%, Qu Chen 11 starch 77.16%, is a high-quality, high-yield, stable high-yielding corn varieties bred by our company. 1 breeding process 1.1 maternal inbred line “SU-2-4 ” is in 1998 with Nongda 108 and Guizhou 9501 single cross hybrid cross as the base material, after planting in 1999 to select the excellent plant S1 → 2000