关键词:
Fluorescence
Louro-Pardo
Morphological traits
Phosphate nutrition
Photosynthetic apparatus
摘要:
The application of phosphorus(P)and a waterretaining polymer to the soil can increase the availability of P for Cordia trichotoma,having a positive effect on the *** objective of this study was to evaluate the morphological,physiological and biochemical characteristics of *** plants were cultivated in a red argisol and treated with 120,240 and 360 kg P2O5 ha^(−1)and no phosphorous addition as a control,in the presence(5 g L^(−1)per seedling)and absence of a water-retaining *** months after planting,survival,height,stem diameter,shoot and root dry matter,leaf area,photosynthetic pigment concentration,chlorophyll a fluorescence,acid phosphatase enzyme activity(APase)and P in tissues and soil were *** polymer had no effect on survival and the other *** addition of P increased growth,dry matter production,photosynthetic pigment concentrations,the use of light energy and maximum quantum yield of photosystem *** cultivated in soil with 240 kg P2O5 ha^(−1)application had 4.7 and 5.4 times more shoot and root dry matter,respectively,than control *** dosage also showed 52.1%greater photochemical energy use than the control *** cultivated without the addition of P showed higher activity of the APase enzyme.