摘要
以农大108和青农105为材料,设置3个播期和6个密度处理,研究播期和密度对两个玉米品种淀粉糊化特性和子粒品质的影响。结果表明,品种间比较,淀粉峰值黏度、谷值黏度、崩解值、回复值、峰值时间、糊化温度差异显著;播期对糊化特征值及子粒淀粉、蛋白质含量的影响较大,密度的影响较小。晚播条件下,峰值黏度和谷值黏度显著升高,糊化温度显著降低;中播条件下,淀粉含量最低,蛋白质含量最高。因此,试验播期范围内,晚播有利于改良淀粉糊化特性,适期播种有利于改良子粒品质。
Nongdal08 and Qingnongl05 were planted in three sowing dates and six planting densities to deter- mine the effects of sowing date and density on starch RVA properties and kernel quality of two maize varieties. The results indicated that peak viscosity, trough viscosity, breakdown, setback, peak time and pasting temperature of two varieties were significantly different. Sowing date had a great effect on RVA properties and starch content and protein content, but planting density had a little effect. In the late sowing date, peak viscosity and trough viscosity increased significantly, pasting temperature decreased significantly. In the middle sowing date, starch and protein content were the lowest and the highest, respectively. In this study, late sowing can improve starch RVA properties and middle sowing can improve kernel quality.
出处
《玉米科学》
CAS
CSCD
北大核心
2014年第3期98-102,108,共6页
Journal of Maize Sciences
基金
国家自然科学基金(31101100)
青岛市科技计划[11-24-5-(8)-jch]
作物生物学国家重点实验室开放课题(2013KF05)
山东省泰山学者建设工程项目
关键词
玉米
淀粉糊化特性
子粒品质
播期
密度
Maize
Starch RVA properties
Kernel quality
Sowing date
Density
