The space available to plants affects the available resources and hence modifies the growth habits and yield potential of plants. The effect of four seeding densities (250, 500, 750 and 1000 viable seeds/m2) and three row spacings (12, 15 and 20 cm) were evaluated at Morfa Mawr field station at the University of Wales, Aberystwyth, UK during the 1993 and 1994 growing seasons. Number of capsules per plant, number of seeds per capsule, thousand-seed weight and seed yield were examined during the study. Capsule index (CI) and harvest index (HI) were calculated from the observed data. During the first year, capsules per plant, seeds per capsule and capsule index were increased by decreasing the seed density, while the maximum seed yield of 3.9 t/ha was recorded at the highest seed density of 1000 seeds/m2. An increase in row spacing led to an almost linear increase in most of the yield attributes of the crop. During the second year, the response of yield and yield attributes to seeding densities was similar to that recorded during the first year. Seed yield increased with decreasing row spacing, while the rest of the components did not show any consistent response. During the first year, the overall performance and production of the crop was higher than in the second year because of the better weather conditions, with mild temperature and high rainfall during the season.
Freer, J. B. S., Sansome, G. (1991): The influence of plant population and nitrogen fertility on the seed yield and quality of linseed. Aspects of Applied Biology: Production and Protection of Linseed, 28, 49-54.
'The influence of plant population and nitrogen fertility on the seed yield and quality of linseed ' () 28 Aspects of Applied Biology: Production and Protection of Linseed : 49 -54 .
Gubbels, G. H. (1978): Interaction of cultivar and seeding rate on various agronomic characteristics of flax. Can. J. Plant Sci., 58, 303-309.
'Interaction of cultivar and seeding rate on various agronomic characteristics of flax ' () 58 Can. J. Plant Sci. : 303 -309 .
Hassan, F. U., Leitch, M. H. (2001). Dry matter accumulation in linseed (Linum usitatissimum L.). J. Agron. and Crop Sci., 187, 83-87.
'. Dry matter accumulation in linseed (Linum usitatissimum L.) ' () 187 J. Agron. and Crop Sci. : 83 -87 .
Turner, J. A. (1987): Linseed Law: A Handbook for Growers and Advisors. BASF, Hadleigh, Suffolk, UK, 361 p.
Linseed Law: A Handbook for Growers and Advisors , () 361 .
Diepenbrock, W. A., Porksen, N. (1992): Phenotypic plasticity in growth and yield components of linseed (Linum usitatissimum L.) in response to spacing and N-nutrition. J. Agron. and Crop Sci., 169, 46-60.
'Phenotypic plasticity in growth and yield components of linseed (Linum usitatissimum L.) in response to spacing and N-nutrition ' () 169 J. Agron. and Crop Sci. : 46 -60 .
Diepenbrock, W. A., Porksen, N. (1993): Effect of stand establishment and nitrogen fertilization on yield and yield physiology of linseed (Linum usitatissimum L.). Industrial Crops Products, 1, 165-175.
'Effect of stand establishment and nitrogen fertilization on yield and yield physiology of linseed (Linum usitatissimum L.) ' () 1 Industrial Crops Products : 165 -175 .
Freer, J. B. S. (1992): Linseed; components of yield study. HGCA Oilseeds Project Report No. 3. MAFF, London. p. 146.
Bilgili, U., Dinvik, M., Auzun, A., Acikgoz, E. (2003): The influence of row spacing and seed rate on seed yield and yield components of forage turnip (Brassica rapa L.). J. Agron. and Crop Sci., 189, 205-254.
'The influence of row spacing and seed rate on seed yield and yield components of forage turnip ' () 189 (Brassica rapa L.). J. Agron. and Crop Sci. : 205 -254 .
Chandra, S., Makhija, P. O. (1979): Genetic variability and interrelationship of some quantitative characters in geographical groups of exotic linseed (Linum usitatissimum L.) germ plasm. Acta Agron. Hung., 28, 65-70.
'Genetic variability and interrelationship of some quantitative characters in geographical groups of exotic linseed (Linum usitatissimum L.) germ plasm ' () 28 Acta Agron. Hung. : 65 -70 .
Clipson, N. W. J., Edwards, S. J. (1994): Factors affecting crop productivity: the biotic environment. In: Weston, G. D. (ed.), Crop Productivity. Butterworth Heinemann Ltd., Jordan Hill, Oxford, UK. pp. 93-134.
Crop Productivity , () 93 -134 .
Albrechtsen C., Dybing, C. D. (1973): Influence of seeding rate upon seed and oil yield and their components in flax. Crop Sci., 13, 277-280.
'Influence of seeding rate upon seed and oil yield and their components in flax ' () 13 Crop Sci. : 277 -280 .