摘要
利用Matlab软件对玉米子粒灌浆过程用Richards方程进行拟合后,通过编程实现灌浆次级特征参数计算,并对不同播期子粒灌浆特征进行分析和探讨。结果表明,在黑龙港地区生态条件下,不同播期玉米各部位子粒灌浆均符合"S"形生长曲线,可用Richards方程很好地拟合。不同播期条件下,早播处理子粒起始势最高,达到灌浆盛期时间最早,平均灌浆速率及最大灌浆速率最大,活跃灌浆期较长,粒重最高。各播期玉米不同部位子粒,穗下部与上部相比,子粒的起始生长势较大,平均灌浆速率较高,达到灌浆高峰期时间较短,粒重较高。
Richards equation was used to simulate kernel filling processes of maize by Matlab under different sowing dates.A series of subsequent parameters of kernel filling were calculated by Matlab programming and the kernel filling characteristics were also analyzed.The results showed that the increasing process of grain weight in different ear positions of Zhengdan958 under different sowing dates in Heilonggang area,presents a shape of "S",which was perfectly simulated by the richards growth equation.In three sow...
出处
《玉米科学》
CAS
CSCD
北大核心
2010年第6期143-147,共5页
Journal of Maize Sciences
基金
国家科技支撑计划项目(2007BAD69B052
006BAD02A13)
