The breeding of crop ideotypes
- C. M. Donald
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Most plant breeding is based on “defect elimination” or “selection for yield”. A valuable additional approach is available through the breeding of crop ideotypes, plants with model characteristics known to influence photosynthesis, growth and (in cereals) grain production. Some instances of the successful use of model characters of this kind are quoted.
It is postulated that a successful crop ideotype will be a weak competitor, relative to its mass. Thus the like plants in the crop community will compete with each other to a minimum degree. This relationship of plant form to the exploitation of the enviroment may lead to two negative relationships among genotypes, namely:
Between the performance of cultivars at low density and at high density respectively, and
Between the competitive ability of cultivars against other genotypes on the one hand, and their capacity for yield in pure culture on the other.
A crop ideotype will make a minimum demand on resources per unit of dry matter produced. Further, in cereals, each unit of dry matter will include such a number of florets as to ensure that the ear has sufficient capacity to accept all photosynthates either from its own green surfaces or from other parts of the plant. These criteria are to be satisfied especially at high fertility, and when the total pressure by the community on environmental resources is intensified by high density of population.
A wheat ideotype is described. It has a short, strong stem; few, small, erect leaves; a large ear (this specifically means many florets per unit of dry matter of the tops); an erect ear; awns; and a single culm.
The design of crop ideotypes is likely to involve concurrent modifications of the environment. The wheat ideotype here described will call for consideration of the density of planting, the fertilizer rate, the plant arrangement and weed control.
Eventually most plant breeding may be based on ideotypes.
- Asana, R. D., 1965. Ideal and reality in crop plants. I. Wheat. J. Ind. agric. Res. Inst. 3: 63–68.
- Aspinall, D., 1961. The control of tillering in the barley plants. I. The pattern of tillering and its relation to nutrient supply. Aust. J. Biol. Sci. 14: 493–505.
- Aspinall, D., 1963. The control of tillering in the barley plant. II. The control of tiller-bud growth during ear development. Aust. J. Biol. Sci. 16: 285–304.
- Beachell, H. M. and Jennings, P. R., 1965. Need for modification of plant type. In: The mineral nutrition of the rice plant. John Hopkins Press, Baltimore, pp. 29–35.
- Bell, G. D. H. and Kirby, E. J. M., 1966. Utilization of growth responses in breeding new varieties of cereals. In. The growth of cereals and grasses. Butterworths, London, pp. 308–319.
- Bunting, A. H. and Drennan, D. S. H., 1966. Some aspects of the morphology and physiology of cereals in the vegetative phase. In: The growth of cereals and grasses. Butterworths, London, pp. 20–38.
- Buttrose, M. S., 1962. Physiology of cereal grain. III. Photosynthesis in the wheat ear during grain development. Aust. J. Biol. Sci. 15: 611–618.
- Buttrose, M. S. and May, L. H., 1959. Physiology of cereal grain. I. The source of carbon for the developing barley kernel. Aust. J. Biol. Sci. 12: 40–52.
- Donald, C. M., 1962. In search of yield. J. Aust. Inst. agric. Sci. 28: 171–178.
- Donald, C. M., 1963. Competition among crop and pasture plants. Adv. Agron. 15: 1–118.
- Duncan, W. G., Loomis, R. S., Williams, W. A. and Hanau, R., 1967. A model for simulating photosynthesis in plant communities. Hilgardia 38: 181–205.
- Gardener, C. J., 1966. The physiological basis for yield differences in three high and three low yielding varieties of barley. Thesis, University of Guelph, Ontario, Canada.
- Grundbacher, F. J., 1963. The physiological function of the cereal awn. Botan. Rev. 29: 366–381.
- Hageman, R. H., Leng, E. R. and Dudley, J. W., 1967. A biochemical approach to corn breeding. Adv. Agron. 19: 45–86.
- Harlan, H. V. and Anthony, S., 1920. Development of barley kernels in normal and clipped spikes, and the limitations of awnless and hooded varieties. J. agric. Res. 19: 431–472.
- Hayashi, K. and Ito, H., 1962. Studies on the form of plant in rice varieties with particular reference to the efficiency in utilizing sunlight. I. The significance of extinction coefficient in rice plant communities. (In Japanese, tables in English). Proc. Crop. Sci. Soc. Japan 30: 329–333.
- Holliday, R., 1963. The effect of row width ontthe yield of cereals. Field Crop Abstr. 16: 71–81.
- Hutchinson, J. R., Silow, R. A. and Stephens, S. G., 1947. The evolution of Gossypium, and the differentiation of the cultivated cottons. Oxford Univ. Press.
- I.R.R.I., 1966. Intern. Rice Res. Inst. Reptr 2, Nos 4 and 5.
- Jennings, P. R., 1964. Plant Type as a rice breeding objective. Crop Sci. 4: 13–15.
- Jennings, P. R., 1966. The evolution of plant type in Oryza sativa. Econ. Bot. 20: 396–402.
- Jennings, P. R. and Aquino, R. C., 1968. Studies on competition in rice. III. Mechanisms of competition among phenotypes. Evolution (in press).
- Jennings, P. R. and Jesus, J. de, 1968. Studies on competition in rice. I. Competition in mixtures of varieties. Evolution 22: 119–124.
- Jensen, N. F. and Federer, W. T., 1965. Competing ability in wheat. Crop Sci. 5: 449–452.
- Kasanaga, H. and Monsi, M., 1954. On the light-transmission of leaves, and its meaning for the production of matter in plant communities. Japan J. Bot. 14: 304–324.
- Kasper, R. E., 1929. The contrast in response of Kafir and Milo to variations in spacing. J. Am. Soc. Agron. 21: 344–354.
- Krassovsky, I., 1926. Physiological activity of the seminal and nodal roots of crop plants. Soil Sci. 21: 307–325.
- Lang, A. L., Pendleton, J. W., and Dungan, C. H., 1956. Influence of population and nitrogen levels on yield and protein and oil contents of nine corn hybrids. Agron. J. 41: 284–289.
- Langer, R. H. M., 1967. Physiological approaches to yield determination in wheat and barley. Field Crop Abstr. 20: 101–106.
- Mac Key, J., 1966. The wheat plant as a model in adaptation to high productivity under different environments. Proc. 5th Yugoslav. Symp. on Research in Wheat, Novi Sad, 1966.
- Matsushima, S., Tanaka, T. and Hoshino, H., 1964. Analysis of yielddetermining process and its application to yield-prediction and culture improvement of lowland rice. 68. On the relation between morphological characteristics and photosynthetic efficiency. (In Japanese, tables in English). Proc. Crop Sci. Soc. Japan. 33: 44–48.
- Monsi, M. and Saeki, T., 1953. Über den Lichtfaktor in den Pflanzengesellschaften und seine Bedeutung für die Stoffproduktion. Japan J. Bot. 14: 22–52.
- Murata, Y., 1961. Studies on the photosynthesis of rice plants and its culture significance. (In Japanese, tables in English). Bull. Natn. Inst. agric. Sci. (Tokyo) D9: 1–170.
- Nichiporovic, A. A., 1954. Photosynthesis and the theory of obtaining high crop yields. 15th Timirjarez Lecture U.S.S.R. Acad. Sci. (Precis by J. N. Black and D. J. Watson in Field Crop Abstr.) 13 (1960): 169–175.
- Pendleton, J. W., 1968. Agron. J. (in press).
- Pukridge, D. W. and Donald, C. M., 1967. Competition among wheat plants sown at a wide range of densities. Aust. J. agric. Res. 18: 193–211.
- Rawson, H. M., 1967. Competition within the wheat plant and the plasticity of response. Thesis, University of Adelaide.
- Sims, H. J., 1963. Changes in the hay production and the harvest index of Australian oat varieties. Aust. J. Exp. Agric. Anim. Husb. 3: 198–201.
- Stinson Jr., H. T. and Moss, D. N., 1960. Some effects of shade upon corn hybrids tolerant and intolerant of dense planting. Agron. J. 52: 482–484.
- Stringfield, G. H., 1964. Objectives in corn improvement. Adv. Agron. 16: 101–137.
- Suneson, C. A., 1949. Survival of four barley varieties in a mixture. J. Am. Soc. Agron. 41: 459–461.
- Swaminathan, M. S., Chopra, V. L. and Bhaskaran, S., 1962. Chromosome aberrations and the frequency and spectrum of mutations induced by ethylmethane sulphonate in barley and wheat. Indian J. Genet. Pl. Breed. 22: 192–207.
- Tanaka, A., Kawana, K. and Yamaguchi, J., 1966. Photosynthesis, respiration, and plant type of the tropical rice plant. Intern. Rice Res. Inst., Philippines, Tech. Bull. 7.
- Tanaka, A., Navasero, S. A., Garcia, C. V., Parao, F. T. and Ramirez, E., 1964. Growth habit of the rice plant in the tropics and its effect on nitrogen response. Intern. Rice Res. Inst., Philippines, Tech. Bull. 3.
- Tanner, J. W., Gardener, C. J., Stoskopf, N. C., and Reinbergs, E., 1966. Some observations on upright-leaf-type small grains. Can. J. Pl. Sci. 46: 690.
- Thorne, G. N., 1963. Varietal differences in photosynthesis of ears and leaves of barley. Ann. Bot. (N.S.) 27: 155–174.
- Thorne, G. N., 1966. Physiological aspects of grain yield in cereals. In: The Growth of Cereals and Grasses, Butterworths, London, pp. 88–105.
- Tsunoda, S., 1959a. A developmental analysis of yielding ability in varieties of field crops. I. Leaf area per plant and leaf area ratio. Japan J. Breed. 9: 161–168.
- Tsunoda, S., 1959b. A developmental analysis of yielding ability in varieties of field crops. II. The assimilation-system of plants as affected by the form, direction and arrangement of single leaves. Japan J. Breed. 9: 237–244.
- Tsunoda, S., 1960. A developmental analysis of yielding ability in varieties of field crops. III. The depth of green colour and the nitrogen content of leaves. Japan J. Breed. 10: 107–111.
- Tsunoda, S., 1962. A developmental analysis of yielding ability in varieties of field crops. IV. Quantitative and spatial development of the stem-system. Japan J. Breed. 12: 49–55.
- Vogel, O. A., Allan, R. E. and Petersen, C. J., 1963. Plant and performance characteristics of semi-dwarf winter wheats producing most efficiently in eastern Washington. Agron. J. 55: 397–398.
- Wardlaw, I. F., 1967. The effect of water stress on translocation in relation to photosynthesis and growth. I. Effect during grain development in wheat. Aust. J. Biol. Sci. 20: 25–39.
- Welbank, P. J., French, S. A. W. and Witts, K. J., 1966. Dependence of yields of wheat varieties on their leaf area durations. Ann. Bot. (N.S.) 30: 291–299.
- Wiebe, G. A., Petr, F. C., and Stevens, H., 1963. Interplant competition between barley genotypes. In: Statistical genetics and plant breeding. Natn. Acad. Sci. U.S.A. Natn. Res. Council Publ. 982. pp. 546–557.
- Wilson, J. W., 1960. Influence of spatical arrangement of foliage area on light interception and pasture growth. Proc. 8th Intern. Grassland Congr. Reading, England., pp. 275–279.
- The breeding of crop ideotypes
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- C. M. Donald (1)
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- 1. Waite Agricultural Research Institute, The University of Adelaide, South Australia