摘要
温州蜜柑经不同程度磷胁迫处理后,其净光合速率(Pn)、光呼吸速率(Pr)、表观量子效率(AQY)、羧化效率(CE)、最大荧光(Fm)、光化学效率(Fv/Fm)、量子产量(Y)、电子传递速率(ETR)显著下降。但光呼吸/光合比(Pr/Pn)和初始荧光(Fo)显著升高。当采用叶面喷施KH2PO4的方式供磷时,缺磷状况可在24h内基本恢复到处理前的水平。
After being dealt by different degree phosphorus deficiency stress, the Net photosynthetic rate(Pn), Photorespiration rate(Pr), Apparent quantum yield(AQY), Carboxylation efficiency(CE), Maximum fluorescence(Fm), Photochemical efficiency(Fv/Fm),Quantum yield(Y), Electron transmit rate(ERT) of the Citrus unshiu Marc. decrease remarkably, while the Pr/Pn and the Fo rise obviously. When the method of spraying leaves KH2PO4 is adopted to offer phosphorus, the phosphorus deficiency state can almost resume to the level that is before being dealt in 24 hours.
出处
《云南农业大学学报》
CAS
CSCD
2003年第2期158-162,共5页
Journal of Yunnan Agricultural University
关键词
叶片
光合作用
温州蜜柑
缺磷胁迫
叶绿素荧光
光合磷酸化
光呼吸
Citrus unshiu Marc.
phosphorus deficiency stress
chlorophyll fluorescence
photophosphorylation
photorespiration
