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The effects of nitrogen and irrigation on timothy (Phleum pratense) grown for production of seed: I. Vegetative growth

Published online by Cambridge University Press:  27 March 2009

D. A. Lambert
D. A. Lambert
Affiliation:
The Grassland Research Institute, Hurley, Berkshire
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1. Plants of S.48 timothy were established on a 1 ft square pattern for production of seed. Two series of plots, one irrigated and one not irrigated, were treated with three levels of applied nitrogen: 0 (NO), 87 (Nl) and 261 (N2) lb N per acre (0, 97·5 and 292·5 kg N/ha) per annum, for 3 years. In this, the first of two papers, only vegetative aspects of growth are considered. Since the irrigation treatment started only 2 weeks before most of the data were recorded, effects of irrigation on vegetative growth were generally small.

2. The number of tillers per plant was increased by application of nitrogen; the lower increment was more effective than the additional nitrogen in the higher dose.

3. The weight of tillers per plant was increased by nitrogen at both levels of application. The mean weight of each tiller was increased by nitrogen after the first year, predominantly in the N 2 treatment. In the second year, irrigation also increased the weight per tiller.

4. The weight of roots per plant was significantly affected by application of nitrogen. In the first year, the weight was increased by nitrogen in irrigated plots; in the second year the roots were significantly heavier in the Nl treatment than in N0 and N2 treatments, where weights were similar; the same situation existed in irrigated plots in the third year, but in non-irrigated plots the weights of roots were similar in N1 and N2 treatments and were heavier than in the N0 treatment. Irrigation had positive effects on the weight of roots in the first and second years.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 69 , Issue 2 , October 1967 , pp. 225 - 230
Copyright
Copyright © Cambridge University Press 1967

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References

Asana, R. D., Saini, A. D. & Ray, D. (1958). Studies in physiological analysis of yield. III. The rate of grain development in wheat in relation to photosynthetic surface and soil moisture. Physiologica, Pl. 11, 655–65.CrossRefGoogle Scholar
Aspinall, D., Nicholls, P. B. & May, L. H. (1964). The effects of soil moisture stress on the growth of barley. I. Vegetative development and grain yield. Aust. J. agric. Res. 15, 729–45.CrossRefGoogle Scholar
Bingham, J. (1966). Varietal response in wheat to water supply in the field, and male sterility caused by a period of drought in a glasshouse experiment. Ann. appl. Biol. 57, 365–77.CrossRefGoogle Scholar
Chinoy, J. J. (1962). Physiology of drought resistance in wheat. IV. Effect of wilting at different growth and development stages on plant characters determining yield of grain in eight varieties of wheat. Phyton 19, 5–10.Google Scholar
Denmead, O. T. & Shaw, R. H. (1960). The effects of soil moisture stress at different stages of growth on the development and yield of corn. Agron. J. 52, 272–4.CrossRefGoogle Scholar
Evans, G. (1959). Seed rates of grasses for seed production. I. Pasture varieties of ryegrass, cocksfoot, and timothy. Emp. J. exp. Agric. 27, 291–9.Google Scholar
Evans, T. A. (1953). Management and manuring for seed production in cocksfoot and timothy. J. Br. Grassld Soc. 8, 245–59.CrossRefGoogle Scholar
Evans, T. A. (1954). The effects of nitrogen applications at different dates on the seed yield of pedigree grasses. J. Br. Grassld Soc. 9, 53–60.CrossRefGoogle Scholar
Evans, T. A. (1955). Manuring and winter grazing for seed production in S48 timothy. J. Br. Grassld Soc. 10, 254–62.CrossRefGoogle Scholar
Garwood, E. A. (1960). Seasonal root development of herbage species. Exps Prog. Grassld Res. Inst. 12, 54–5.Google Scholar
Garwood, E. A. (1961). Studies on the root development of grasses. Exps Prog. Grassld Res. Inst. 13, 62–4.Google Scholar
Garwood, E. A. (1967). Seasonal variation in appearance and growth of grass roots. J. Br. Grassld Soc. 22, 121–30.CrossRefGoogle Scholar
Henckel, P. A. (1964). Physiology of plants under drought. A. Rev. Pl Physiol. 15, 363–86.CrossRefGoogle Scholar
Jones, P. J. (1953). Nitrogenous manuring of S48 timothy for seed. J. Br. Grassld Soc. 8, 349–51.CrossRefGoogle Scholar
Lambebt, D. A. (1963a). The effect of the rate and timing of nitrogen applications on the seed yield and components of yield in S 48 timothy (Phleum pratense L.). J. Br. Grassld Soc. 18, 154–7.CrossRefGoogle Scholar
Lambert, D. A. (1963b). The influence of density and nitrogen in seed production stands of S 37 cocksfoot (Dactylis glomerata L.). J. agric. Sci., Camb. 61, 361–73.CrossRefGoogle Scholar
Lambert, D. A. (1964). The influence of density and nitrogen in seed production stands of S48 timothy (Phleum pratense L.) and S215 meadow fescue (Festuca pratensis L.). J. agric. Sci., Camb. 63, 35–42.CrossRefGoogle Scholar
Lambert, D. A. (1966). The effect of cutting timothy (Phleum pratense L.) grown for production of seed. J. Br. Grassld Soc. 21, 208–13.CrossRefGoogle Scholar
Langer, R. H. M. (1957). Growth and nutrition of timothy (Phleum pratense).II. Growth of the plant in relation to tiller development. Ann. appl. Biol. 45, 528–41.CrossRefGoogle Scholar
Langer, R. H. M. (1959a). Growth and nutrition of timothy (Phleum pratense L.). IV. The effect of nitrogen phosphorus and potassium supply on growth during the first year. Ann. appl. Biol. 47, 211–21.CrossRefGoogle Scholar
Langer, R. H. M. (1959b). Growth and nutrition of timothy (Phleum pratense L.). V. Growth and flowering at different levels of nitrogen. Ann. appl. Biol. 47, 740–51.CrossRefGoogle Scholar
Lehane, J. J. & Staple, W. J. (1962). Effects of soil moisture tensions on growth of wheat. Can. J. Soil Sci. 42, 180–8.CrossRefGoogle Scholar
MacKay, D. C. & Eaves, C. A. (1962). The influence of irrigation treatments on yields and on fertilizer utilization by sweet corn and snap beans. Can. J. Pl. Sci. 42, 219–28.CrossRefGoogle Scholar
Maughan, G. L. & Hanbury, L. F. (1961). Down-the row thinning of sugar beet: Extended field trials in commercial crops. J. agric. Engng Res. 6, 310–14.Google Scholar
May, L. H. & Milthorpe, F. L. (1962). Drought resistance of crop plants. Fld Crop Abstr. 15, 171–9.Google Scholar
van des Paauw, F. (1949). Water relations of oats with special attention to the influence of periods of drought. Pl. Soil 1, 303–41.CrossRefGoogle Scholar
Penman, H. L. (1962). Woburn irrigation, 1951–59. III. Results for rotation crops. J. agric. Sci., Camb. 58, 365–79.CrossRefGoogle Scholar
Robins, J. S. & Domingo, C. E. (1962). Moisture and nitrogen effects on irrigated spring wheat. Agron. J. 54, 135–8.CrossRefGoogle Scholar
Roebuck, J. F. & Peeler, C. H. (1966). The effect of irrigation on yield of spring barley and winter wheat. Expl Husb. 13, 85–9.Google Scholar
Ryle, G. J. A. & Langer, R. H. M. (1963). Studies on the physiology of flowering of timothy (Phleum pratense L.). I. Influence of daylength and temperature on initiation and differentiation of the inflorescence. Ann. Bot. 27, 213–31.CrossRefGoogle Scholar
Stuckey, I. H. (1941). Seasonal growth of grass roots. Am. J. Bot. 28, 486–91.CrossRefGoogle Scholar
Troughton, A. (1951). Studies on the roots and storage organs of herbage plants. J. Br. Grassld Soc. 6, 197–206.CrossRefGoogle Scholar
Troughton, A. (1956). Studies on the growth of young grass plants with special reference to the relationship between the shoot and root systems. J. Br. Grassld Soc. 11, 56–65.CrossRefGoogle Scholar
Troughton, A. (1957). The underground organs of herbage grasses. Bull. 44 Commonw. Bur. Pastures Fld Crops.Google Scholar
Williams, T. E. & Baker, H. K. (1957). Studies in the root development of herbage plants. I. Techniques in herbage root investigations. J. Br. Grassld Soc. 12, 49–55.CrossRefGoogle Scholar