Advertisement

Physiology of Crop Production

  • Hans Mohr
  • Peter Schopfer
Chapter

Abstract

Currently some 14 million km2 of the earth’s surface (approximately 10%) is used for agriculture. This proportion can no longer be substantially increased without taking massive ecological risks and without enormous investment of capital, technical innovation and energy. The gigantic areas taken up by tundras, deserts, savannas, bushlands and tropical rainforests are hardly suitable for productive agriculture. Furthermore, everywhere in the world considerable areas of potential agriculture are sacrificed for human settlements and to develop infrastructure (roads and tracks for railways). Even larger areas are irreversibly lost for agriculture and forestry because of incorrect treatment, such as deforestation, overgrazing, salinisation, contamination or erosion. As the human population is still increasing exponentially (1830: 1 · 109; 1930: 2 · 109; 1960: 3 · 109; 1990: 5.4 ·109; 2000: 6.5 · 109), the agriculturally usable area per capita is continuously reduced (1980: 0.30 ha · head−1; 2000: 0.22 ha · head−1).

Keywords

Sugar Beet Root Hair Gene Technology Economic Yield Agricultural Plant 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Further Reading

  1. Dennis ES, Llewellyn DJ (1991) (eds) Molecular approaches to crop improvement. Springer, Vienna New YorkGoogle Scholar
  2. Djordjevic MA, Weinman JJ (1991) Factors determining host recognition in the clover-Rhizobium symbiosis. Aust J Plant Physiol 18:543–557CrossRefGoogle Scholar
  3. Dodge AD (ed) (1989) Herbicides and plant metabolism. SEB Seminar Series, vol. 38. Cambridge Univ Press, Cambridge New YorkGoogle Scholar
  4. Evans LT (ed) (1975) Crop physiology. Some case histories. Cambridge Univ Press, LondonGoogle Scholar
  5. Gallon JR (1992) Reconciling the incompatible: N2 fixation and O2. New Phytol 122:571–609CrossRefGoogle Scholar
  6. Gasser CS, Fraley RT (1989) Genetically engineering plants for crop improvement. Science 244:1293–1299PubMedCrossRefGoogle Scholar
  7. Grierson D (1991) Plant genetic engineering. Blackie, LondonGoogle Scholar
  8. Großmann R (1992) Plant growth retardants: their mode of action and benefit for physiological research. In: Karssen CM, Van Loon LC, Vreugdenhil D (eds) Progress in plant growth regulation. Kluwer Academic, Dordrecht Boston London, pp 788–797CrossRefGoogle Scholar
  9. Hiatt A (1990) Antibodies produced in plants. Nature 344:469–470PubMedCrossRefGoogle Scholar
  10. Hiatt A (ed) (1993) Transgenie plants. Fundamentals and applications. Marcel Dekker, New YorkGoogle Scholar
  11. Hock B, Elstner EF (eds) (1988) Schadwirkungen auf Pflanzen. Lehrbuch der Pflanzentoxikologie, 2. Aufl. BI-Wiss-Verlag, Mannheim Wien ZürichGoogle Scholar
  12. Hohn T, Schell J (eds) (1987) Plant DNA infectious agents. Plant Gene Research Series. Springer, Wien New YorkGoogle Scholar
  13. Hooykaas PJJ, Schilperoort RA (1992) Agrobacterium and plant genetic engineering. Plant Mol Biol 19:15–38PubMedCrossRefGoogle Scholar
  14. Klee H, Horsch R, Rogers S (1987) Agrobacerium-mediated plant transformation and its further applications to plant biology. Annu Rev Plant Physiol 38:467–486CrossRefGoogle Scholar
  15. Kuckuck H, Kobabe G, Wenze G (1991) Fundamentals of plant breeding. Springer, Berlin Heidelberg New YorkCrossRefGoogle Scholar
  16. Lamb CJ, Beachy RN (eds) (1990) Plant gene transfer. Wiley-Liss, New YorkGoogle Scholar
  17. Lambers H, Cambridge ML, Konings H, Pons TL (eds) (1990) Causes and consequences of variation in growth rate and productivity of higher plants. SPB Academic Publishing, The HagueGoogle Scholar
  18. Marschner H (1986) Mineral nutrition of higher plants. Academic Press, Londoin Orlando San DiegoGoogle Scholar
  19. Milthorpe FL, Moorby J (1974) An introduction to crop physiology. Cambridge Univ Press, LondonGoogle Scholar
  20. Nap J-P, Bisseling T (1990) Development biology of a plantprokaryote symbiosis: the legume root nodule. Science 250:948–954PubMedCrossRefGoogle Scholar
  21. Potrykus I (1991) Gene transfer to plants: assessment of published approaches and results. Annu Rev Plant Physiol Plant Mol Biol 42:205–225CrossRefGoogle Scholar
  22. Stevenson FJ (ed) (1982) Nitrogen in agricultural soils. Agronomy Series, vol 22. Am. Soc. Agric, Crop Sci Soc Am, Soil Sci Soc Am, Publishers, MadisonGoogle Scholar
  23. Werner D (1992) Symbiosis of plants and microbes. Chapman & Hall, LondonGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • Hans Mohr
    • 1
  • Peter Schopfer
    • 1
  1. 1.Lehrstuhl für BotanikBiologisches Institut II der UniversitätFreiburgGermany

Personalised recommendations