Abstract
Almost four decades have passed since the new field of ecosystem simulation sprang into full force as an added tool for a sound research in an ever-advancing scientific front. The enormous advances and new discoveries that recently took place in the field of molecular biology and basic genetics added more effective tools, have strengthened and increased the efficiency of science outputs in various areas, particularly in basic biological sciences. Now, we are entering into a more promising stage in science, i.e. ‘post-genomics’, where both simulation modelling and molecular biology tools are integral parts of experimental research in agricultural sciences. I briefly review the history of simulation of crop/environment systems in the light of advances in molecular biology, and most importantly the essential role of experimental research in developing and constructing more meaningful and effective models and technologies. Such anticipated technologies are expected to lead into better management of natural resources in relation to crop communities in particular and plant ecosystems in general, that might enhance productivity faster. Emphasis is placed on developing new technologies to improve agricultural productivity under stressful environments and to ensure sustainable economic development. The latter is essential since available natural resources, particularly land and water, are increasingly limiting.
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Adam, N.R., Wall, G.W., Kimball, B.A., Idso, S.B., Webber, A.N.: Photosynthetic down-regulation over long-term CO2 enrichment in leaves of sour orange (Citrus aurantium) trees. — New Phytol. 163: 341–347, 2004.
Akano, A.O., Dixon, A.G.O., Mba, C., Barrera, E., Fregene, M.: Genetic mapping of a dominant gene conferring resistance to cassava mosaic disease. — Theor. appl. Genet. 105: 521–525, 2002.
Allen, R.G., Pereira, L.S., Raes, D., Smith, M.: Crop evapotranspiration — Guidelines for computing crop water requirements — FAO Irrigation and drainage paper 56. FAO, Rome 1998.
Alves, A.A.C., Setter, T.L.: Response of cassava to water deficit: leaf area growth and abscisic acid. — Crop Sci. 40: 131–137, 2000.
Alves, A.A.C., Setter, T.L.: Response of cassava leaf area expansion to water deficit: cell proliferation, cell expansion and delayed development. — Ann. Bot. 94: 605–613, 2004.
Amthor, J.S.: The McCree-deWit-Penning de Vries-Thornley respiration paradigms: 30 years later. — Ann. Bot. 86: 1–20, 2000.
Aresta, R.B., Fukai, S.: Effects of solar radiation on growth of cassava (Manihot esculenta Crantz). II. Fiberous root length. — Field Crops Res. 9: 361–371, 1984.
Baker, D.N., Lambert, J.R., McKinion, J.M.: GOSSYM: a simulator of cotton growth and yield. — South Carolina Agr. Exp. Stat. Tech. Bull. 1983.
Baker, D.N., Musgrave, R.B.: Photosynthesis under field conditions. V. Further plant chamber studies of the effects of light on corn (Zea mays L.). — Crop Sci. 2: 127–131, 1964.
Baker, J.M.: Use and abuse of crop simulation models: foreword. — Agron. J. 88: 689, 1996.
Baker, N.R., Davies, W.J.: Control of Plant Growth. — Cambridge Univ. Press, Cambridge 1995.
Begonia, G.B., Begonia, M.F.T., Ousby, B.R., Johnson, M.: Vegetative and reproductive responses of cotton to state-specific CO2 enrichment and drought stress. — J. Mississippi Acad. Sci. 44: 190–196, 1999.
Begonia, G.B., Hesketh, J.D., Hodges, H.F.: Effects of long-term drought and nitrogen on fruiting and yield of cotton. — In: Nelson, T.C. (ed.): Proc. Beltwide Cotton Prod. Res. Conf. Pp. 71–75. Nat. Cotton Council of America, Memphis 1986a.
Begonia, G.B., Hesketh, J.D., Pettigrew, W.T., Peters, D.B.: Cotton leaf photosynthesis in enriched CO2. — In: Nelson, T.C. (ed.): Proc. Beltwide Cotton Prod. Res. Conf. Pp. 76–77. Nat. Cotton Council of America, Memphis 1986b.
Begonia, G.B., Hesketh, J.D., Woolley, J.T., Peters, D.B.: Variability in leaf photosynthetic CO2 exchange rates near saturating irradiance and CO2. — Photosynthetica 21: 584–587, 1987.
Begonia, G.B., Russ, B., Cunningham, S.G., Moore, R.: Evidence of not photosynthetic acclimation to cotton exposed to state-specific CO2 enrichment. — J. Mississippi Acad. Sci. 41: 95–98, 1996.
Behera, S.K, Nayak, L., Biswal, B.: Senescing leaves possess potential for stress adaptation: the developing leaves acclimated to high light exhibit increased tolerance to osmotic stress during senescence. — J. Plant Physiol. 160: 125–131, 2003.
Berry, J., Bjorkman, O.: Photosynthetic response and adaptation to temperature in higher plants. — Annu. Rev. Plant Physiol. 31: 491–543, 1980.
Boardman, N.K.: Comparative photosynthesis of sun and shade plants. — Annu. Rev. Plant Physiol. 28: 355–377, 1977.
Bohm, W.: Methods of Studying Root Systems. — Springer-Verlag, Berlin 1979.
Boote, K.J., Jones, J.W., Mishoe, J.W., Berger, R.D.: Coupling pests to crop growth simulators to predict yield reduction. — Phytopathology 73: 1581–1587, 1983.
Boote, K.J., Jones, J.W., Pickering, N.B.: Potential uses and limitations of crop models. — Agron. J. 88: 704–716, 1996.
Boote, K.J., Loomis, R.S. (ed.): Modeling Crop Photosynthesis — from Biochemistry to Canopy. — Crop Science Society of America and American Society of Agronomy, Madison 1991.
Bowman, B.T., Brunke, R.R., Reynolds, W.G., Wall, G.J.: Rainfall simulator grid lysimeter system for solute transport studies using large intact soil blocks. — J. Environ. Quality 23: 815–822, 1994.
Bowman, B.T., Reynolds, W.D.: FAQ-Water Flow in Soils. — Southern Crop Protection and Food Res. Ctr., London 2003.
Brendel, B., Pan, X, Sparks, M.E.: Bioinformatics: The interpretation of genomic information. — In: Brummer, C., Wilson, R.F. (ed.): Legume Crop Genomics. Pp. 256–267. Amer. Oil Chem. Soc., Champaign 2004.
Bunce, J.A.: Measurements and modeling of photosynthesis in field crops. — CRC crit. Rev. Plant Sci. 4: 47–77, 1986.
Bunce, J.A., Sicher, R.C., Jr.: Daily irradiance and feedback inhibition of photosynthesis of elevated carbon dioxide in Brassica oleracea. — Photosynth. Res. 41: 481–488, 2004.
Buringh, P.: Food production potential of the world. — World Development 5: 477–485, 1977.
Buxton, D.R., Shibles, R., Forsberg, R.A., Blad, B.L., Asay, K.H., Paulsen, G.M., Wilson, R.F. (ed.): International Crop Science I. — Crop Science Society of America, Madison 1993.
Cavero, J., Farre, I., Debaeke, P., Faci, J.M.: Simulation of maize yield under water stress with the EPICphase and CROPWAT models. — Agron. J. 92: 679–690, 2000.
Cayon, M.G., El-Sharkawy, M.A., Cadavid, L.F.: Leaf gas exchange of cassava as affected by quality of planting material and water stress. — Photosynthetica 34: 409–418, 1997.
Chen, X.M., Alm, D.M., Hesketh, J.D.: Effects of atmospheric CO2 concentration on photosynthetic performance of C3 and C4 plants. — Biotronics 24: 65–72, 1995a.
Chen, X.M., Begonia, G.B., Alm, D.M., Hesketh, J.D.: Responses of soybean leaf photosynthesis to CO2 and drought. — Photosynthetica 29: 447–454, 1993.
Chen, X.M., Begonia, G.B., Hesketh, J.D.: Soybean stomatal acclimation to long-term exposure to CO2 enriched atmospheres. — Photosynthetica 31: 51–57, 1995b.
CIAT: Cassava Program Annual Report for 1990 (1992, 1993, 1994, 1995). — Centro Internacional de Agricultura Tropical, Cali 1990 (1992, 1993, 1994, 1995).
Cock, J.H., El-Sharkawy, M.A.: Physiological characteristics for cassava selection. — Exp. Agr. 24: 443–448, 1988.
Cock, J.H., Franklin, D., Sandoval, G., Juri, P.: The ideal cassava plant for maximum yield. — Crop Sci. 19: 271–279, 1979.
Cock, J.H., Porto, M.C.M., El-Sharkawy, M.A.: Water use efficiency of cassava. III. Influence of air humidity and water stress on gas exchange of field grown cassava. — Crop Sci. 25: 265–272, 1985.
Cock, J.H., Riano, N.M., El-Sharkawy, M.A., Lopez, Y., Bastidas, G.: C3-C4 intermediate photosynthetic characteristics of cassava (Manihot esculenta Crantz). II. Initial products of 14CO2 fixation. — Photosynth. Res. 12: 237–241, 1987.
Collins, G.B., Shepherd, R.J. (ed.): Engineering Plants for Commercial Products and Applications. — New York Academy of Sciences, New York 1996.
Connor, D.J., Cock, J.H.: Response of cassava to water shortage. II. Canopy dynamics. — Field Crops Res. 4: 285–296, 1981.
Cowling, S.A., Field, C.B.: Environmental control of leaf area production: implications for vegetation and land-surface modeling. — Global Biogeochem. Cycles 17: doi:10.1029/2002GB001,915, 2003.
Cuthbertson, D. (ed.): Assessment of and Factors Affecting Requirements of Farm Livestock. — Pergamon Press, Oxford 1969.
Davies, W.J., Metcalfe, J., Lodge, T.A., da Costa, A.R.: Plant growth substances and the regulation of growth under drought. — Aust. J. Plant Physiol. 13: 105–125, 1986.
de Tafur. S.M., El-Sharkawy, M.A., Cadavid, L.F.: Response of cassava (Manihot esculenta Crantz) to water stress and fertilization. — Photosynthetica 34: 233–239, 1997a.
de Tafur, S. M., El-Sharkawy, M.A., Calle, F.: Photosynthesis and yield performance of cassava in seasonally dry and semiarid environments. — Photosynthetica 33: 229–257, 1997b.
Desai, P.: Weather and Grain Yields in the Soviet Union. — International Food Policy Research Institute, Washington 1986.
de Wit, C.T.: Photosynthesis of leaf canopies. — Agr. Res. Rep. (Pudoc-Wageningen) 663: 1–57, 1965.
Dickson, R.E., Tomlinson, P., Isbrands, J.G.: Partitioning of current photosynthate to different chemical fractions in leaves, stems, and roots of northern red oak seedlings during episode growth. — Can. J. Forest Res. 30: 1308–1317, 2000.
Duncan, W.G.: SIMCOT: A simulation of cotton growth and yield. — In: Murphy, C., Hesketh, J.D., Strain, B. (ed.): Modelling the Growth of Trees. Pp. 115–118. Oak Ridge Nat. Lab., Oak Ridge 1973.
Duncan, W.G., Loomis, R.S., Williams, W.A., Hanau, R.: A model for simulating photosynthesis in plant communities. — Hilgardia 38: 181–205, 1967.
Edwards, G.E., Sheta, E., Moore, B. de, Dai, Z., Fransceschi, V.R., Cheng, S.-H., Lin, C.-H., Ku, M.S.B.: Photosynthetic characteristics of cassava (Manihot esculenta Crantz), a C3 species with chlorenchymatous bundle sheath cells. — Plant Cell Physiol. 31: 1199–1206, 1990.
El-Sharkawy, M.A.: Crop Research in Kufra Oasis, Libya. — Agric. Dev. Council, Tripoli 1975.
El-Sharkawy, M.A.: Effect of humidity and wind on leaf conductance of field grown cassava. — Rev. bras. Fisiol. veg. 2: 17–22, 1990.
El-Sharkawy, M.A.: Drought-tolerant cassava for Africa, Asia and Latin America: breeding projects work to stabilize productivity without increasing pressures on limited natural resources. — BioScience 43: 441–451, 1993.
El-Sharkawy, M.A.: Cassava biology and physiology. — Plant mol. Biol. 53: 241–261, 2003.
El-Sharkawy, M.A.: Cassava biology and physiology. — Plant mol. Biol. 56: 481–501, 2004.
El-Sharkawy, M.A., Cadavid, L.F.: Genetic variation within cassava germplasm in response to potassium. — Exp. Agr. 36: 323–334, 2000.
El-Sharkawy, M.A., Cadavid, L.F.: Response of cassava to prolonged water stress imposed at different stages of growth. — Exp. Agr. 38: 333–350, 2002.
El-Sharkawy, M.A., Cadavid, L.F., de Tafur, S.M.: Nutrient use efficiency of cassava differs with genotype architecture. — Acta agron. Univ. Nacional-Palmira-Colombia 48: 23–32, 1998.
El-Sharkawy, M.A., Cock, J.H.: Water use efficiency of cassava. I. Effects of air humidity and water stress on stomatal conductance and gas exchange. — Crop Sci. 24: 297–502, 1984.
El-Sharkawy, M.A, Cock, J.H.: C3-C4 intermediate photosynthetic characteristics of cassava (Manihot esculenta Crantz). I. Gas exchange. — Photosynth. Res. 12: 219–235, 1987a.
El-Sharkawy, M.A., Cock, J.H.: Response of cassava to water stress. — Plant Soil 100: 345–360, 1987b.
El-Sharkawy, M.A., Cock, J.H.: Photosynthesis of cassava (Manihot esculent). — Exp. Agr. 26: 325–340, 1990.
El-Sharkawy, M.A., Cock, J.H., Held, K.A.A.: Water use efficiency of cassava. II. Differing sensitivity of stomata to air humidity in cassava and other warm-climate species. — Crop Sci. 24: 503–507, 1984.
El-Sharkawy, M.A., Cock, J.H., Lynam, J.K., Hernandez, A. del P., Cadavid, L., F.L.: Relationships between biomass, rootyield and single-leaf photosynthesis in field-grown cassava. — Field Crops Res. 25: 183–201, 1990.
El-Sharkawy, M.A., de Tafur, S.M., Cadavid, L.F.: Potential photosynthesis of cassava as affected by growth conditions. — Crop Sci. 32: 1336–1342, 1992a.
El-Sharkawy, M.A., de Tafur, S.M., Cadavid, L.F.: Photosynthesis of cassava and its relation to crop productivity. — Photosynthetica 28: 431–438, 1993.
El-Sharkawy, M.A., Hernandez, A. del P., Hershey, C.: Yield stability of cassava during prolonged mid-season water stress. — Exp. Agr. 28: 165–174, 1992b.
El-Sharkawy, M.A., Hesketh, J.D.: Effects of temperature and water deficit on leaf photosynthetic rates of different species. — Crop Sci. 4: 514–518, 1964.
El-Sharkawy, M., Hesketh, J.: Photosynthesis among species in relation to characteristics of leaf anatomy and CO2 diffusion resistances. — Crop Sci. 5: 517–521, 1965.
El-Sharkawy, M.A., Hesketh, J.D.: Citation Classic — Photosynthesis among species in relation to characteristics of leaf anatomy and CO2 diffusion resistances. — Curr. Cont./Agr. Biol. Environ. 27: 14, 1986.
El-Sharkawy, M., Hesketh, J., Muramoto, H.: Leaf photosynthetic rates and other growth characteristics among 26 species of Gossypium. — Crop Sci. 5: 173–175, 1965.
El-Sharkawy, M.A., Loomis, R.S., Williams, W.A.: Apparent reassimilation of respiratory carbon dioxide by different plant species. — Physiol. Plant. 20: 171–186, 1967.
El-Sharkawy, M.A., Loomis, R.S., Williams, W.A.: Photosynthetic and respiratory exchanges of carbon dioxide by leaves of the grain amaranth. — J. appl. Ecol. 5: 243–251, 1968.
Evans, L.T.: Crop Evolution, Adaptation and Yield. — Cambridge Univ. Press, Cambridge 1993.
Fernandez, M.D., Tezara, W., Rengifo, E., Herrera, A.: Lack of downregulation of photosynthesis in a tropical root crop, cassava, grown under an elevated CO2 concentration. — Funct. Plant Biol. 29: 805–814, 2002.
Forrester, J.W.: Industrial Dynamics. — Massachusetts Inst. Technol. Press, Cambridge 1961.
Fregene, M., Okogbenin, E., Mba, C., Angel, F., Suarez, M.C., Guitierez, J., Chavarriaga, P., Roca, W., Bonierbale, M., Tohme, J.: Genome mapping in cassava improvement: challenges, achievements and opportunities. — Euphytica 120: 159–165, 2001.
Fregene, M., Puonti-Kaerlas, J.: Cassava biotechnology. — In: Hillocks, R.J., Thresh, J.M., Bellotti, A.C. (ed.): Cassava: Biology, Production and Utilization. Pp. 179–207. CABI Publishing, New York 2002.
Fukai, S., Alcoy, A.B., Llamelo, A.B., Patterson, R.D.: Effects of solar radiation on growth of cassava (Manihot esculenta Crantz): I. Canopy development and dry matter growth. — Field Crops Res. 9: 347–360, 1984.
Fye, R.E., Reddy, V.R., Baker, D.N.: The validation of GOSSYM: Part 1-Arizona conditions. — Agri. Syst. 14: 85–105, 1984.
Gaastra, P.: Photosynthesis of crop plants as influenced by light, carbon dioxide, temperature and stomatal diffusion resistance. — Meded. Landbouwhogeschool (Wageningen) 59(13): 1–68, 1959.
Garfield, E.: The effectiveness of American Society of Agronomy Journals: A citationist's perspective. — In: Research Ethics, Manuscript Review and Journal Quality. Pp. 1–13. ACS Misc. Publ., ISI, Pennsylvania 1992.
Gray, V.M.: A comparison of two approaches for modelling cassava (Manihot esculenta Crantz) crop growth. — Ann. Bot. 85: 77–99, 2000.
Hanks, R.J., Rasmussen, V.P.: Predicting crop production as related to plant water stress. — Adv. Agron. 35: 193–215, 1982.
Hatch, M.D.: C4 pathway photosynthesis: mechanism and physiological function. — Trends biochem. Sci. 2: 199–202, 1977.
Hatch, M.D., Slack, C.R.: Photosynthesis by sugar-cane leaves. A new carboxylation reaction and the pathway of sugar formation. — Biochem. J. 101: 103–111, 1966.
Hawksworth, D.L. (ed.): Advancing Agricultural Production in Africa. — Commonwealth Agricultural Bureaux, Farnham Royal 1984.
Hermans, J., Westhoff, P.: Analysis of expression and evolutionary relationships of phosphoenolpyruvate carboxylase genes in Falveria trinervia (C4) and F. pringlei (C3). — Mol. gen. Genet. 224: 459–468, 1990.
Hershey, C.H., Jennings, D.L.: Progress in breeding cassava for adaptation to stress. — Plant Breed. Abstr. 62: 823–831, 1992.
Hesketh, J.D., Woolley, J.T., Peters, D.B.: Leaf photosynthetic CO2 exchange rates in light and CO2 enchange rates in light and CO2 enriched environments. — Photosynthetica 18: 536–540, 1984.
Hileman, D.R., Huluka, G., Kenjigel, P.K., Sinha, N., Bhattacharya, N.C., Biswas, P.K., Lewin, K.F., Nagy, J., Hendrey, G.R.: Canopy photosynthesis and transpiration of field-grown cotton exposed to free-air CO2 enrichment (FACE) and differential irrigation. — Agr. Forest Meteorol. 70: 189–207, 1994.
Hodges, T. (ed.): Predicting Crop Phenology — CRC Press, Boca Raton 1991.
Hoogenboom, G., Jones, J.W., Boote, K.J.: Modeling the growth, development and yield of grain yields using SOYGRO, PNUTGRO and BEANGRO: a review. — Trans. ASAE 35: 2043–2056, 1992.
Ingram, J., Sutton, K., Hunt, T.: GCTW Working Document 24, GCTW Focus 3 Cassava Network. Symposium Abstracts: Food and Forestry — Global Change and Global Challenges. The GCTE Focus 3 Conference 1999.
Irikura, Y., Cock, J.H., Kawano, K.: The physiological basis of genotype-temperature interactions in cassava. — Field Crops Res. 2: 227–239, 1979.
Jones, J.W., Hesketh, J.D., Kamprath, E.J., Bowen, H.D.: Development of a nitrogen balance for cotton growth models. — Crop Sci. 14: 541–546, 1974.
Kasperbauer, M.J.: Cotton seedling root growth responses to light reflected to the shoots from straw-covered versus bare soil. — Crop Sci. 39: 164–167, 1999.
Kasperbauer, M.J., Hunt, P.G.: Far-red light affects photosynthate allocation and yield of tomato over red mulch. — Crop Sci. 38: 970–974, 1998.
Kasperbauer, M.J., Karlen, D.L.: Light-mediated bioregulation of tillering and photosynthate partitioning in wheat. — Physiol. Plant. 66: 159–163, 1986.
Kawano, K., Daza, P., Amaya, A. Rios, M., Goncalves, W.M.F.: Evaluation of cassava germplasm for productivity. — Crop Sci. 18: 377–380, 1978.
Kawano, K., Narintaraporn, K., Narintaraporn, P., Sarakarn, S., Limsila, A., Limsila, J., Suparhan, D., Sarawat, V., Watananonta, W.: Yield improvement in a multistage breeding program for cassava. — Crop Sci. 38: 325–332, 1998.
Keating, B.A., Evenson, J.B., Fukai, S.: Environmental effects on growth and development of cassava (Manihot esculenta Crantz). I. Crop development. — Field Crops Res. 5: 271–281, 1982.
Kortchak, H.P., Hart, C.K., Burr, G.O.: Carbon dioxide fixation in sugarcane leaves. — Plant Physiol. 40: 209–213, 1965.
Kreeb, K.H., Richter, H., Hinckley, T.M. (ed.): Structural and Functional Responses to Environmental Stresses: Water Shortage. — SPB Academic Publ., The Hague 1989.
Kutacek, M., Elliott, M.C., Machackova, I. (ed.): Molecular Aspects of Hormonal Regulation of Plant Development. — SPB Academic Publ., The Hague 1990.
Laetsch, W.M.: The C4 syndrome: a structural analysis. — Annu. Rev. Plant Physiol. 25: 27–52, 1974.
Loomis, R.S., Rabbinge, R., Ng, E.: Explanatory models in crop physiology. — Annu. Rev. Plant Physiol. 30: 339–367, 1979.
Lopez, Y., Velez, W., El-Sharkawy, M., Mayer, J.E.: Biochemical characterization of PEPC from cassava: a preliminary report. — In: Roca, W.M., Thro, A.M. (ed.): Proceedings of the First International Scientific Meeting of the Cassava Biotechnology Network. Pp. 340–343. Centro Internacional de Agricultura Tropical, Cali 1993.
MacDermitt, D.K., Loomis, R.S.: Elemental composition of biomass and its relation to energy content, growth efficiency, and growth yield. — Ann. Bot. 48: 275–290, 1981.
Mathews, R.B.: Modelling phosphorus dynamics of cassava-based agroforestry systems — Final report, R6348 sub-contract. Sisloe, Bedfordshire, MD45 4DT UK, 1998.
Mathews, R.B., Hunt, L.A.: GUMCAS: a model describing the growth of cassava (Manihot esculenta Crantz). — Field Crops Res. 36: 69–84, 1994.
McCree, K.J.: Equations for the rate of dark respiration of white clover and grain sorghum, as functions of dry weight, photosynthetic rate, and temperature. — Crop Sci. 14: 509–514, 1974.
McKinion, J.M., Baker, D.N., Hesketh, J.D., Jones, J.W.: SIMCOT II: A simulation of cotton growth and yield. — In: Computer Simulation of a Cotton Production System. Users Manual. Pp. 27–82. Agr. Res. Serv., US Dep. Agr. 1975.
McKinion, J.M., Baker, D.N., Whisler, F.D., Lambert, J.R.: Application of GOSSYM/COMAX system to cotton crop management. — Agr. Syst. 31: 55–65, 1989.
Mishoe, J.W., Jones, J.W., Swaney, D.P., Wilkerson, G.G.: Using crop and pest models for management applications. — Agr. Syst. 15: 153–170, 1984.
Monsi, M., Saeki, T.: Uber den Lichtfaktor in den Pflanzengesellschaften und seine Bedeutung fur die Stoffproduktion. — Jap. J. Bot. 14: 22–52, 1953.
Monteith, J.L.: The quest for balance in crop modeling. — Agron. J. 88: 695–697, 1996.
Muramoto, H., Hesketh, J., El-Sharkawy, M.: Relationships among rate of leaf area development, photosynthetic rate, and rate of dry matter production among American cultivated cottons and other species. — Crop Sci. 5: 163–166, 1965.
Neales, T.F., Incoll, L.D.: The control of leaf photosynthesis rate by the level of assimilate concentration in the leaf: a review of the hypothesis. — Bot. Rev. 34: 107–125, 1968.
Ng, E., Loomis, R.S.: Simulation of Growth and Yield of the Potato Crop. — PUDOC, Wageningen 1984.
Nickel, J.L.: Low-input, environmentally sensitive technology for agriculture. Grant F. Walton International Lecture presented at Rutgers, The State University of New Jersey. 16 October 1984. — Centro Internacional de Agricultura Tropical, Cali 1987.
Nickel, J.L.: Research Management for Development — Open Letter to a New Agricultural Research Director. — Inter-American Institute for Cooperation on Agriculture, San Jose 1989.
Okogbenin, E., Fregene, M.: Genetic analysis and QTL mapping of early root bulking in and F1 population of non-inbred parents in cassava (Manihot esculenta Crantz). — Theor. appl. Genet. 106: 58–66, 2002.
Osaki, M., Shinano, T., Yamada, M., Yamada, S.: Function of node unit in photosynthate distribution to root in higher plants. — Photosynthetica 42: 123–131, 2004.
Pan, X.: Modeling Degree Day Effects on Plant Leaf and Internode Phenological Events. — MS Thesis. Univ. Illinois, Urbana-Champaign 1997.
Pan, X.: A Phenological Study of Pioneer hybrids. — Ph.D. Thesis. Univ. Illinois, Urbana-Champaign 2000.
Pan, X., Hesketh, J.D., Huck, M.G.: OWSimu: An Objectoriented and Web-based Simulator for Plant Growth. — Agr. Syst. 63: 33–47, 2000.
Passioura, J.B.: Simulation models: science, snake oil, education or engineering? — Agron. J. 88: 690–694, 1996.
Peart, R.M., Curry, D.B. (ed.): Agricultural System Modeling and Simulation. — Marcel Dekker, Washington 1997.
Pellet, D., El-Sharkawy, M.A.: Cassava varietal response to phosphorus fertilization. 1. Yield, biomass and gas exchange. — Field Crops Res. 35: 1–11, 1993a.
Pellet, D., El-Sharkawy, M.A.: Cassava varietal response to phosphorus fertilization. II. Phosphorus uptake and use efficiency. — Field Crops Res. 35: 13–20, 1993b.
Pellet, D., El-Sharkawy, M.A.: Sink source relations in cassava: effects of reciprocal grafting on yield and leaf photosynthesis. — Exp. Agr. 30: 359–367, 1994.
Pellet, D., El-Sharkawy, M.A.: Cassava varietal response to fertilization: growth dynamics and its implications for cropping sustainability. — Exp. Agr. 33: 353–365, 1997.
Penning de Vries, F.W.T.: The cost of maintenance processes in plant cells. — Ann. Bot. 39: 77–92, 1975.
Penning de Vries, F.W.T., Brunsting, A.B., van Laar, H.H.: Products, requirements and efficiency of biological synthesis, a quantitative approach. — J. theor. Biol. 45: 339–377, 1974.
Penning de Vries, F.W.T., Jansen, D.M., ten Berge, H.F.M., Bakema, A.: Simulation of Ecophysiological Processes of Growth in Several Annual Crops. — PUDOC, Wageningen 1989.
Pettigrew, W.T.: Moisture deficit effects on cotton lint yield, yield components, and boll distribution. — Agron. J. 96: 377–383, 2004a.
Pettigrew, W.T.: Physiological consequences of moisture deficit stress in cotton. — Crop Sci. 44: 1265–1272, 2004b.
Poluektov, R.A., Topaj, A.G.: Crop modeling: nostalgia about present or reminiscence about future. — Agron. J. 93: 653–659, 2001.
Portis, A.R., Jr., Salvucci, M.E.: The discovery of Rubisco activase — yet another story of serendipity. — Photosynth. Res. 73: 257–264, 2002.
Porto, M.C.M.: Physiological Mechanisms of Drought Tolerance in Cassava (Manihot esculenta Crantz). — Ph.D. Thesis. University of Arizona, Tucson 1983.
Radin, J.W., Kimball, B.A., Hendrix, D.L., Mauney, J.R.: Photosynthesis of cotton plants exposed to elevated levels of carbon dioxide in the field. — Photosynth. Res. 12: 191–203, 1987.
Raghavendra, A.S., Sane, P.V., Mohanty. P.: Photosynthesis research in India: transition from yield physiology into molecular biology. — Photosynth. Res. 76: 435–450, 2003.
Ramanujam, T.: Effect of moisture stress on photosynthesis and productivity of cassava. — Photosynthetica 24: 217–224, 1990.
Reddy, K.R., Hodges, H.F., McKinion, J.M.: Modeling temperature effects on cotton internode and leaf growth. — Crop Sci. 37: 503–509, 1997.
Ritchie, J.T.: A user-oriented model of the soil water balance in wheat. — In: Day, W., Atkin, R.K. (ed.): Wheat Growth and Modeling. Pp. 293–305. Plenum Press, New York 1985.
Ritchie, J.T., Godwin, D.C., Otter-Nacke, S.J.: CERES-Wheat: A User-Oriented Wheat Yield Model. Preliminary Document. — Michigan State Univ., West Lansing 1985a.
Ritchie, J.T., Godwin, D.C., Otter-Nacke, S.J.: CERES-Wheat: A User-Oriented Wheat Yield Model. Preliminary Document. — Michigan State Univ., East Lansing 1985b.
Ritchie, J.T., Johnson, B.S.: Soil and plant factors affecting evaporation. — In: Stewart, B.A., Nielsen, D.R. (ed.): Irrigation of Agricultural Crops. Pp. 363–390. ASA-CSSA-SSSA, Madison 1990.
Rogers, A., Fischer, B.U., Bryant, J., Frehner, M., Blum, H., Raines, C.A., Long, S.P.: Acclimation of photosynthesis to elevated CO2 under low-nitrogen nutrition is affected by the capacity for assimilate utilization. Perennial ryegrass under free-air CO2 enrichment. — Plant Physiol. 118: 683–689, 1998.
Rohrig, M., Stutzel, H., Alt, C.: A three-dimensional approach to modeling light interception in heterogeneous canopies. — Agron. J. 91: 1024–1032, 1999.
Russel, G., Marshall, B., Jarvis, P.G. (ed.): Plant Canopies: Their Growth, Form and Function. — Cambridge Univ. Press, Cambridge — New York — Port Chester — Melbourne — Sydney 1989.
Saeki, T.: Interrelationships between leaf amount, light distribution and leaf photosynthesis in a community. — Bot. Mag. 73: 5–63, 1960.
Salem, J.: In an interview with Lord Robert May of the UK. — Discover 25 (Nov.): 23–24, 2004.
Sasson, A.: Feeding Tomorrow's World. — United Nations Educational, Scientific and Cultural Organization (UNESCO)/ CTA, Paris 1990.
Sestak, Z. (ed.): Photosynthesis During Leaf Development. — Academia, Praha; Dr W. Junk Publ., Dordrecht — Boston — Lancaster 1985.
Sestak, Z., Catsky, J., Jarvis, P.G. (ed.): Plant Photosynthetic Production. Manual of Methods. — Dr W. Junk Publ., The Hague 1971.
Sharma-Natu, P., Pandurangam, V., Ghildiyal, M.C.: Photosynthetic acclimation and productivity of mungbean cultivars under elevated CO2 concentration. — J. Agron. Crop Sci. 190: 81–85, 2004.
Sholtis, J.D., Gunderson, C.A., Norby, R.J., Tissue, D.T.: Persistent stimulation of photosynthesis by elevated CO2 in a sweetgum (Liquidamber styraciflua) forest stand. — New Phytol. 162: 343–354, 2004.
Shorter, R., Lawn, R.J., Hammer, G.L.: Improving genotypic adaptation in crops — a role for breeders, physiologists and modellers. — Exp. Agr. 27: 155–175, 1991.
Sinclair, T.R., Seligman, N.G.: Crop modeling: from infancy to maturity. — Agron. J. 88: 698–704, 1996.
Singh, P.: Data needs for soil water balance simulation. — In: Wani, S.P., Singh, P., Pathak, P. (ed.): Methods and Management of Data for Watershed Research. Pp. 49–54. ICRISAT, Patancheru 1999.
Swaney, D.P., Mishoe, J.W., Jones, J.W., Boggess, W.G.: Using crop models for management: Impact of weather characteristics on irrigation decisions in soybeans. — Trans. ASAE 26: 1808–1814, 1983.
Tenjo, F.A., Mayer, J.E., El-Sharkawy, M.: Cloning and sequence analysis of PEP-carboxylase from cassava. — In: Roca, W.M., Thro, A.M. (ed.): Proceedings of the First International Scientific Meeting of the Cassava Biotechnology Network. Pp. 331–334. Centro Internacional de Agricultura Tropical, Cali 1993.
Thornley, J.H.M.: Dynamic model of leaf photosynthesis with acclimation to light and nitrogen. — Ann. Bot. 81: 421–430, 1998.
Thornley, J.H.M.: Instantaneous canopy photosynthesis: analytical expressions for sun and shade leaves based on exponential light decay down the canopy and acclimated non-rectangular hyperbola for leaf photosynthesis. — Ann. Bot. 89: 451–458, 2002.
Thornley, J.H.M.: Acclimation of photosynthesis to light and canopy nitrogen distribution: an interpretation. — Ann. Bot. 93: 473–475, 2004.
Thornley, J.H.M., Johnson, I.R.: Plant and Crop Modelling: A Mathematical Approach to Plant and Crop Physiology. — Oxford Sci. Publ., Clarendon Press, Oxford 1990.
Tscherning, K., Leihner, D.E., Hilger, T.H., Muller-Samann, K.M., El-Sharkawy, M.A.: Grass barriers in cassava hillside cultivation: rooting patterns and root growth dynamics. — Field Crops Res. 43: 131–140, 1995.
Ueno, O., Agarie, S.: The intercellular distribution of glycine decarboxylase in leaves of cassava in relation to the photosynthetic mode and leaf anatomy. — Jap. J. Crop Sci. 66: 268–278, 1997.
Veltkamp, H.J.: Physiological causes of yield variation in cassava (Manihot esculenta Crantz). — Agricultural University Wageningen Papers 85–6. Wagningen 1985.
Wang, J., Hesketh, J.D., Woolley, J.T.: Preexisting channels and soybean rooting patterns. — Soil Sci. 141: 432–437, 1986.
Ware, D.H., Jaiswal, P., Ni, J., Yap, I.V., Pan, X., Clark, K.Y., Teytelman, L., Schmidt, S.C., Zhao, W., Chang, K., Cartinhour, S., Stein, L.D., McCouch, S.R.: Gramene: a tool for grass genomics. — Plant Physiol. 130: 1606–1613, 2002.
Watson, D.J.: Comparative physiological studies on the growth of field crops: I. Variation in net assimilation rate and leaf area between species and varieties, and within and between years. — Ann. Bot. 41: 41–76, 1947.
Watson, D.J.: The physiological basis of variation in yield. — Adv. Agron. 4: 101–145, 1952.
Whisler, F.D., Acock, B., Baker, D.N., Fye, R.E., Hodges, H.F., Lambert, J.R., Lemmon, H.E., McKinion, J.M., Reddy, V.R.: Crop simulation models in agronomic systems. — Adv. Agron. 40: 141–208, 1986.
White, J.W., Hoogenboom, G.: Simulating effects of genes for physiological traits in a process-oriented crop model.-Agron. J. 88: 416–422, 1996.
White, J.W., Hoogenboom, G., Jones, J.W., Boote, K.J.: Evaluation of dry bean model BEANGRO V 1.01 for crop production research in a tropical environment. — Exp. Agr. 31: 241–254, 1995.
Wortman, S., Cummings, R.W., Jr.: To Feed This World: The Challenge and the Strategy. — Johns Hopkins University Press, Baltimore 1978.
Xu, D.Q., Gifford, R.M., Chow, W.S.: Photosynthetic acclimation in pea and soybean to high atmospheric CO2 partial pressure. — Plant Physiol. 106: 661–671, 1994.
Zhang, L.X., Qi, W., Su, L., Whisler, F.: Deltasoy — an internet based database system for soybean research and production. — Agron. J. 94: 1163–1171, 2002.
Zhang, L.X., Wang, R.F., Hesketh, J.D.: Effects of photoperiod on growth and development of soybean floral bud in different maturity. — Agron. J. 93: 944–948, 2001.
Ziska, L.H., Hogan, K.P., Smith, A.P., Drake, B.G.: Growth and photosynthesis response of nine tropical species with longterm exposure to elevated carbon dioxide. — Oecologia 86: 383–389, 1991.
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An erratum to this article is available at http://dx.doi.org/10.1007/s11099-005-0097-8.
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El-Sharkawy, M.A. How can calibrated research-based models be improved for use as a tool in identifying genes controlling crop tolerance to environmental stresses in the era of genomics—from an experimentalist's perspective. Photosynthetica 43, 161–176 (2005). https://doi.org/10.1007/s11099-005-0030-1
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DOI: https://doi.org/10.1007/s11099-005-0030-1