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| Content Provider | Springer Nature Link |
|---|---|
| Author | Singh, Munna Verma, Krishan Kumar Verma, Chhedi Lal |
| Copyright Year | 2013 |
| Abstract | The physiological responses pertaining to influence of fluoride-contaminated irrigation water (100–500 ppm) on 6-week-old seedlings of Populus deltoides, a fast growing tree crop in northern India are investigated. It is observed that the various fluoride concentrations in irrigation water are directly proportional to the changes in the physiological responses. The reduction in stomatal conductance is found higher (~57 %) in relation to photosynthetic CO$_{2}$ assimilation (~38 %) and chlorophyll fluorescence yield (~12 %) in fluoride-contaminated (100 ppm) irrigation. Similarly, impaired values for g $_{s}$ (75 %), P $_{N}$ (55 %), and F $_{v}$/F $_{m}$ (18 %) are also triggered by higher level of fluoride-contaminated (200 ppm) irrigation. Further higher dose of fluoride (500 ppm) contaminated irrigation water could severely minimize the physiological responses viz., g $_{s}$, P $_{N}$ and F $_{v}$/F $_{m}$ ca. 86, 65, and 36 %. A mathematical model developed based on the changes in rates of stomatal conductance (Δg $_{s}$/ΔC), photosynthetic CO$_{2}$ assimilation (ΔP $_{N}$/ΔC) and chlorophyll fluorescence yield (ΔF $_{v}$/F $_{m}$/ΔC), which has shown straight line relationship, and was verified with average deviations from 1.86 to 5.87 %. The calculated physiological responses influenced by fluoride irrigation on poplar seedlings are also verified with developed model. The governing equation suggests the existence of functional relationship between physiological responses and applied fluoride treatment doses. Hence, the cultivation of poplar crop may be designed precisely in fluoride affected areas to boost and sustain agro-socio economy. |
| Starting Page | 3357 |
| Ending Page | 3364 |
| Page Count | 8 |
| File Format | |
| ISSN | 01375881 |
| Journal | Acta Physiologiae Plantarum |
| Volume Number | 35 |
| Issue Number | 12 |
| e-ISSN | 18611664 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2013-09-11 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Chlorophyll fluorescence yield Fluoride Photosynthetic CO$_{2}$ assimilation Populus deltoides Stomatal conductance Plant Physiology Plant Genetics & Genomics Plant Biochemistry Plant Pathology Plant Anatomy/Development Agriculture |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Plant Science Agronomy and Crop Science |
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