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Title of Journal: Plant Soil

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Abbravation: Plant and Soil

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Springer Netherlands

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1573-5036

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Maize seedling phosphorus nutrition: Allocation of remobilized seed phosphorus reserves and external phosphorus uptake to seedling roots and shoots during early growth stages

Authors: Muhammad Nadeem, Alain Mollier, Christian Morel, Muhammad Shahid, Muhammad Aslam, Muhammad Zia-ur-Rehman, Muhammad Ashfaq Wahid, Sylvain Pellerin,

Publish Date: 2013/03/29
Volume: 371, Issue:1-2, Pages: 327-338
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Abstract

The growth of green plants depends not only on photosynthesis, but also on the successful remobilization and translocation of seed phosphorus (P) reserves to the vegetative parts of the developing seedling during early growth. Remobilization and photosynthesis are therefore two parallel and co-coinciding processes involved in better seedling establishment and early growth.A study was conducted to evaluate the priority of developing maize seedlings to translocate the remobilized seed P reserves and external P uptake to seedling root and shoot sinks during 4 weeks of early growth. Two fluxes of P in growing seedlings, one from seed remobilized P reserves and one from external P uptake, were distinguished by labelling external nutrient solution P with 32P.The seedling phytomass was equally distributed between seedling roots and shoots for 530 cumulated degree days after sowing. Seedlings partitioned up to 71 % of P from seed reserves and up to 68 % of P acquired from the nutrient solution, to the shoots, depending on the seed P content and P concentration in the nutrient solution. It appears that accumulation of P slows down in seedling roots corresponds to the translocative functions of root P towards shoots for start of photosynthesis.


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Other Papers In This Journal:

  1. The effects of long-term fertilization on the temporal stability of alpine meadow communities
  2. Glyphosate reduces shoot concentrations of mineral nutrients in glyphosate-resistant soybeans
  3. Effects of grazing management system on plant community structure and functioning in a semiarid steppe: scaling from species to community
  4. DGT-measured fluxes explain the chloride-enhanced cadmium uptake by plants at low but not at high Cd supply
  5. Plant and soil responses of an alpine steppe on the Tibetan Plateau to multi-level nitrogen addition
  6. Higher plant diversity enhances soil stability in disturbed alpine ecosystems
  7. Inter-comparison of methods for quantifying above-ground leaf litter decomposition rates
  8. Contrasts in growth and nitrogen nutrition of species in the Cupressaceae and Pinaceae in response to calcium
  9. Concentration of cadmium in durum wheat as affected by time
  10. Grazing by bison is a stronger driver of plant ecohydrology in tallgrass prairie than fire history
  11. Semi-automatic control of soil water in pot culture
  12. The legacy of climate change effects: previous drought increases short-term litter decomposition rates in a temperate mixed grass- and shrubland
  13. Straw management
  14. Increasing fluctuations of soil salinity affect seedling growth performances and physiology in three Neotropical mangrove species
  15. Nickel bioavailability in an ultramafic toposequence in the Vosges Mountains (France)
  16. Decomposition-rate estimation of leaf litter in karst forests in China based on a mathematical model
  17. Land use change decreases soil carbon stocks in Tibetan grasslands
  18. Effect of silicate on phosphate availability for rice in a P-deficient soil
  19. Charcoal and shrubs modify soil processes in ponderosa pine forests of western Montana
  20. Factors regulating litter mass loss and lignin degradation in late decomposition stages
  21. Illite transformation and potassium release upon changes in composition of the rhizophere soil solution
  22. Maize seedling phosphorus nutrition: Allocation of remobilized seed phosphorus reserves and external phosphorus uptake to seedling roots and shoots during early growth stages
  23. Indirect effects of polycyclic aromatic hydrocarbon contamination on microbial communities in legume and grass rhizospheres

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