【摘要】 试验选取三类不同熟期的春小麦品种(品系),在同一时间倒伏后,分期对比测定各品种(品系)倒伏后不同发育阶段的籽粒鲜重、干重,比较分析品种(品系)倒伏与未倒伏籽粒的灌浆特性及干物质积累变化规律。结果表明:倒伏对不同品种(品系)籽粒干物质积累动态变化的差异显著性影响不同,对同一品种(品系)的最大灌浆速率及到达最大灌浆速率的时间均存在着影响,最终对籽粒产量存在着不同程度的影响。更多还原

【Abstract】 This experiment selects three kind of different ripe times the spring wheat varieties,after the identical time lodging,after contrasts by stages determines various varieties lodging the different developmental stage grain fresh weight,the dry weight,the comparative analysis variety lodging and does the material accumulation change rule with not the lodging adult plant’s grouting characteristic.The result indicated that,The lodging does the matter to the different variety to accumulate the dynamic change the difference significance influence to be different,and arrives the maximum grouting speed to the identical variety maximum grouting speed the time to have the influence,finally has the varying degree to the grain output the influence.更多还原