Phosphorus use efficiency(PUE) can be improved through cultivation techniques and breeding. However, little is known about rice(Oryza sativa L.) agronomic and physiological traits associated with high PUE. We characterized the agronomic and physiological traits of rice varieties with different tolerances to low phosphorus in nutrient solution. Two varieties with strong tolerance to low phosphorus(STVs) and two with weak tolerance(WTVs) were grown at normal(NP, control) and low phosphorus(LP, 1/2...

【文章頁數(shù)】：14 頁

【文章目錄】：
1. Introduction
2. Materials and methods
    2.1. Plant materials and growing conditions
    2.2. Treatment
    2.3. Sampling and measurement
    2.4. Final harvest
    2.5. Statistical analysis
3. Results
    3.1. Grain yield and its components
    3.2. Tiller number,leaf area index(LAI),and leaf photosyn-thetic rate
    3.3. Phosphorus translocation efficiency(PTE),internal phos-phorus efficiency(IPE),phosphorus harvest index(PHI),and total phosphorus accumulation
    3.4. Shoot dry weight and root morphology traits
    3.5.Physiological traits of roots
    3.6. Correlations of roots traits with yield and PUE
4. Discussion
5. Conclusions



本文編號：3864194