植物光合作用生物增效剂对夏玉米生长及产量品质的影响

为研究光合作用生物增效剂对夏玉米生长及产量品质的影响，探讨光合增效剂的最佳喷施浓度。以‘郑单958’为材料，连续2年试验，比较不同浓度光合增效剂对夏玉米生长及产量品质的影响。结果表明，喷施675 g/hm2植物光合作用生物增效剂增产最高，达10.85%。喷施植物光合作用生物增效剂能够提高穗粒数和千粒重，最高幅度达9.5%；能提高灌浆后期叶片SAPD值，增强叶片保绿性和光合能力，提高产量和改善品质。由此得出，光合增效剂在夏玉米上的最适喷施浓度为675 g/hm2。

Effects of Plant Photosynthesis Biological Synergist on Growth Yield and Quality of Summer Maize

In this research, the author studied the effect of photosynthesis biological synergist on growth, yield and quality of summer maize, and explored the best spraying concentration of photosynthesis synergist. Experiments were carried out for two consecutive years with the material of‘Zhengdan958’, and effects of different concentration of photosynthesis synergist on growth, yield and quality of summer maize were compared. The results showed that the yield increase effect of spraying 675 g/hm2 of plant photosynthesis biological synergist was the highest. Compared with CK, spraying plant photosynthesis biological synergist could increase the kernel number per ear and 1000-kernel weight, and increase the SPAD in leaf, prolong photosynthetic capacity and improve grain quality. The best spraying concentration of photosynthesis synergist was 675 g/hm2.