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以新合成的NAT配制成不同浓度(0.1、1.0、10.50mg·L~(-1))的水溶液,对小麦进行漫种、水培幼苗和大田灌浆期叶面喷洒处理,以与NAT相同浓度的NAA作对比,研究了喷后一定时期小麦叶片生理活性和收割时籽粒千粒重。结果表明,NAT使小麦在不同生长发育时期叶片中的叶绿素含量均增加;幼苗叶片呼吸速率下降;幼苗期低浓度处理NR活性增高,高浓度显著抑制,灌浆期则随处理浓度的升高而显著增加;籽粒千粒重明显高于对照。不论对叶片生理活性还是对籽粒千粒重的影响,NAT的总体效果均明显优于NAA,其中以1 mg·L~(-1)左右浓度的NAT处理效果最佳。
The newly synthesized NATs were prepared into aqueous solutions with different concentrations (0.1, 1.0 and 10.50 mg · L -1) respectively. The wheat seeds were sprayed at the same concentration as NAT NAA as a control to study the physiological activity of wheat leaves at a certain time after spraying and grain weight at harvest. The results showed that NAT increased the chlorophyll content of wheat leaves at different growth stages and decreased the respiration rate of seedling leaves. The activity of NR at low seedling stage increased significantly and inhibited significantly at high concentration, while the grain filling stage increased significantly with the increase of treatment concentration Increase; grain weight was significantly higher than the control. The overall effect of NAT was obviously better than that of NAA, regardless of the physiological activity of leaves or the effect of grain weight on grain weight. The best concentration of NAT was about 1 mg · L -1.