种植方式对玉米根系特性和产量的影响

为探明不同种植方式对玉米根系特性和产量的影响,在田间试验条件下,测定了宽窄行种植和均匀垄种植玉米根系伤流量、气生根数、气生根干重、气生根层数、地下根干重、产量及产量性状指标。结果表明:宽窄行种植玉米根系伤流液量、玉米气生根数、气生根干重和气生根层数与均匀垄种植之间差异达到极显著水平(p<0.01),地下根干重二者差异不显著。宽窄行种植较均匀垄种植增产12.8%,二者差异达到极显著水平(p<0.01),穗行数、行粒数、百粒重和容重2种种植方式之间差异不显著。

Effects of Planting Method on Root Characters and Yield of Maize

In order to study the effects of planting method on root characters and yield of maize,root bleeding sap,support root numbers,dry weight of support root,support root layer numbers,underground root dry weight,yield and its characters of maize were investigated in wide/narrow row tillage and conventional tillage on the conditions of field experiments.The results showed that the differences of root bleeding sap,support root numbers,dry weight of support root,support root layer numbers reached signifcant level(p <0.01)between the two planting methods,but the dry weight of underground root was not signifcant.The yield with wide/narrow row tillage increased by 12.8% than conventional tillage,and the difference was significant(p<0.01),but the differences of ear numbers,grain numbers per ear,100-seeds weight and volume-weight were not significant.