摘要
[ Objective] To investigate the effects of proportion of dry matter of different organs in whole-plant dry matter on neutral detergent fiber （NDF） content in silage com. [ Metbod] A total of 36 crosses were developed from nine inbred lines, according to complete diallel crossing design. The NDF contents and proportion of dry matter in different organs were statistically analyzed. [ Result] The NDF contents were significantly different between different organs of silage corn, and the proportion of dry matter and NDF content had significant correlation in different organs. The wholeplant NDF content was positively correlated with the proportion of dry matter in straw, stem and leaf as well as bract and spike-stalk, but it was negatively correlated with the proportion of dry matter in ear. [Conclusion] TO reduce NDF content in straw and to increase grain yield are efficient ways to improve quality of silage corn.
[ Objective] To investigate the effects of proportion of dry matter of different organs in whole-plant dry matter on neutral detergent fiber （NDF） content in silage com. [ Metbod] A total of 36 crosses were developed from nine inbred lines, according to complete diallel crossing design. The NDF contents and proportion of dry matter in different organs were statistically analyzed. [ Result] The NDF contents were significantly different between different organs of silage corn, and the proportion of dry matter and NDF content had significant correlation in different organs. The wholeplant NDF content was positively correlated with the proportion of dry matter in straw, stem and leaf as well as bract and spike-stalk, but it was negatively correlated with the proportion of dry matter in ear. [Conclusion] TO reduce NDF content in straw and to increase grain yield are efficient ways to improve quality of silage corn.
基金
funded by the Foundation for Humanities and Social Science,Basic Science and Youth of Beijing University of Agriculture in 2009
