超甜玉米系与其野生型玉米系籽粒发育过程中糖分积累规律
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摘要
以超甜玉米系ZC01-sh2和玉米系ZC01野生型为材料,研究籽粒发育过程中糖分的动态变化规律。结果表明:超甜玉米系ZC01-sh2可溶性总糖含量和蔗糖含量随灌浆期延续呈先升高后降低的单峰曲线变化趋势,最大值出现在授粉后23 d,而葡萄糖含量则呈逐渐下降趋势;其野生型玉米系ZC01可溶性总糖、蔗糖、葡萄糖含量均随着灌浆期延续呈逐渐下降的趋势。该研究结果为甜玉米最佳采收时期确定提供了理论依据。
The dynamic changes of sugar in super sweet maize ZC01-sh2 and its wild type ZC01 were studied. The results showed the soluble total sugar content and sucrose content of super sweet maize ZC01-sh2 exhibited increase first and then decrease a single-peak curve change with the extension of grain-filling stage, the maximum appeared twenty-three days after pollination, while the glucose content showed a trend of gradual decline. Soluble total sugar, sucrose, glucose content of the wild type maize ZC01 decreased as the filling stage continued. Our results provide theoretical basis for the determination the optimum harvesting period of sweet maize.
The dynamic changes of sugar in super sweet maize ZC01-sh2 and its wild type ZC01 were studied. The results showed the soluble total sugar content and sucrose content of super sweet maize ZC01-sh2 exhibited increase first and then decrease a single-peak curve change with the extension of grain-filling stage, the maximum appeared twenty-three days after pollination, while the glucose content showed a trend of gradual decline. Soluble total sugar, sucrose, glucose content of the wild type maize ZC01 decreased as the filling stage continued. Our results provide theoretical basis for the determination the optimum harvesting period of sweet maize.
引文
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[2] 赵福成,景立权,陆大雷,等.超甜玉米籽粒糖分积累和蔗糖代谢酶活性动态变化[J].核农学报,2014,28(12):2230～2237.
[3] 崔彦宏,周海,李伯航.甜玉米籽粒的营养品质及影响因素[J].河北农业大学学报,1996(4):99～104.
[4] 史振声,张喜华.鲜食型玉米育种目标和品种标准的探讨[J].玉米科学,2002(4):16～18.
[5] 禹玉华,梁承邺,段俊,等.外引超甜玉米品种试种初报[J].广东农业科学,2001(2):20～22.
[6] 孙政才,陈国平.甜玉米与普通玉米籽粒发育过程中碳水化合物及氨基酸消长规律的比较研究——Ⅰ.籽粒灌浆特性及碳水化合物消长规律[J].作物学报,1992 (4):301～306.
[7] 李水琴,罗吉,朱志妍,等.不同鲜食玉米灌浆期子粒主要营养成分的积累动态[J].玉米科学,2019,27(2):77～85.
[8] 杨广东,王新江,刘兴焱,等.不同品质类型春玉米子粒可溶性糖和蔗糖的积累规律[J].玉米科学,2007(2):76～78.