摘要
对高产旱稻北农大65在三叶一心、拔节期和孕穗期叶面喷施植物生长调节剂Z-S,研究Z-S对高产旱稻花后光合及产量的影响。结果表明:随Z-S喷施浓度的增加,蒸腾速率、光合速率及气孔导度与对照比较均有所增加,穗数、千粒重及产量也有显著上升,均以低浓度最高。低浓度在灌浆中期光合有效辐射利用率显著提高,说明喷施适宜浓度的Z-S可以提高光能利用率,进而提高产量。
The newly developed plant regulator Z-S was sprinkled on the leaves of dry-land rice at the three-leaf stage, jointing stage and booting stage with different concentrations. The results showed： the transpiration rate, photosynthetic rate and stomatal conductance were all increased as compared with CK; the tiller number, 1000-grain weight and yield were also increased significantly, and those of the low concentration treatment was the highest. The PAR use efficiency was increased significantly by the low concentration treatment in the middle filling stage, showing that suitable Z-S concentration could increase the photosynthetic rate and yield of dry-land rice.
出处
《干旱地区农业研究》
CSCD
北大核心
2006年第1期130-133,共4页
Agricultural Research in the Arid Areas
基金
山东省教育厅计划项目
