Determination of Water absorption rate of 63 Maize inbred lines by gravimetric method, the average seed water absorption rate of the different heterosis groups were analyzed by variance analysis, and the inbred lines with high water-absorption rate of the seeds in each group were selected. A total of 36 inbred lines with seed water absorption rate greater than 0.6mg/h were selected in the experiment 48 hours after water absorption treatment. The inbred lines were divided into five heterosis groups: P group, Lvdahonggu(LRC), Reid, Lancaster and Tangsipingtou(TSPT). The average water absorption rate of the seeds 48 hours after water absorption was 0.73mg/h for Lancaster group, 0.71mg/h for Lvdahonggu group, 0.62mg/h for Reid group, 0.57mg/h for P group and 0.56mg/h for Tangsipingtou group. The results showed that the water absorption rate of the seed particles did not differ significantly between the different groups, but there were significant differences between the water absorption times. The objective of this paper is to study the characteristics of the water absorption rate of maize inbred lines in different heterosis groups and to select the inbred lines with high seed water absorption rate.
大学生创新创业训练计划项目(20180409) ;农林创新试验园建设及双创教育实践(2017cxcy034);国家重点研发计划(2016YFD0101204-3) ;国家重点研发计划( 2017YFD01101202) ;河北农业大学河北省高等学校科学技术研究重点项目( ZD2017037) ;