论文部分内容阅读
【目的】探明春小麦干物质积累变化与种子活力指标间的关系。【方法】通过田间试验,测5个不同品种春小麦开花后营养器官干物质转运量、转运率、籽粒贡献率,籽粒收获后测定种子发芽率、活力指数、幼苗长度、幼苗鲜重、幼苗干重等指标。【结果】不同品种的产量、积累系数和种子活力呈现一定的变化趋势,籽粒产量高低的顺序是新春15号>新春26号>新春17号>新春6号>新春13号;积累系数的排序是新春17号>新春26号>新春15号>新春6号>新春13号;种子活力指数大小的排序是新春17号>新春26号>新春15号>新春6号>新春13号。【结论】春小麦种子活力大小与籽粒产量高低的变化趋势并不完全一致,种子活力的大小与干物质积累系数、籽粒分配率、幼苗干鲜重等指标相关性相对较大。
【Objective】 The objective of this experiment was to determine the relationship between dry matter accumulation in spring wheat and seed vigor index. 【Method】 The dry matter translocation, translocation rate, contribution rate of grain, seed germination rate, vigor index, seedling length, fresh weight of seedling, dry weight of young seedling after flowering of five different spring wheat varieties And other indicators. 【Result】 The results showed that the yield, accumulation coefficient and seed vigor of different varieties showed a certain trend of variation. The order of grain yield was Lunar New Year 15> New Year 26> New Year 17> New Year 6> New Year 13; New Year 17> New Year 26> New Year 15> New Year 6> New Year 13; the order of the seed vigor index is New Year 17> New Year 26> New Year 15> New Year 6> New Year 13. 【Conclusion】 The trend of spring wheat seed vigor is not consistent with the trend of grain yield. The correlation between the seed vigor and the dry matter accumulation coefficient, grain allocation rate, seedling fresh weight and other indicators is relatively large.