Verwysings
- Begg , I. E. and Burton , G. W. 1971 . Comparative study of five genotypes of pearl millet under a range of photoperiods and temperatures . Crop. Sci. , 11 : 803 – 905 .
- Black , J. N. 1968 . Competition between plants of different initial seed sizes in swards of subterranean clover. (Trifolium subterraneum L.) with particular reference to leaf area and the light microclimate . Aust. J. agric. Res. , 9 : 299 – 318 .
- Chippendal , L. A. K. 1955 . “ A guide to the identification of grasses in South Africa ” . In The grasses and pastures of South Africa , Edited by: Meredith , D. Parow : CNA . Part 1. Edited by
- Evans , P. S. 1973 . Effect of seed size and defoliation at three development stages on root and shoot growth of seedlings of some common pasture species . N.Z.J. agric. Res. , 16 : 389 – 394 .
- Nicholls , P.B. and May , L. H. 1963 . Studies on the growth of the barley apex. 1. Interrelationships between primordium, apex length and spikelet development . Aust. J. biol. Sci. , 16 : 561 – 571 .
- Snedecor , G. W. and Cochran , W. G. 1969 . Statistical Methods , U.S.A. : Iowa State Univ. Press .
- Stent , S. 1932 . South African Gramineae—an undescribed species of Schmidtia . Bothalia , 2 : 421 – 422 .
- Thomas , R. L. 1966 . The influence of seed weight on seedling vigour in Lolium perenne . Ann. Bot. NS. , 30 : 111 – 121 .
- Van Niekerk , J. P. 1974 . “ ‘n Ondersoek na die invloed van bepaalde omgewingsfaktore op Schmidtia kalahariensis Stent en Enneapogon cenchroides (Licht.) ” . Edited by: Hubbard , C. E. and Mollis Lehm. , E. Stellenbosch : M.Sc. (Agric.)—verhandeling, Univ. .
- Gebaseer op ‘n gedeelte van die M.Sc. (Agric)‐verhandeling van die eerste outeur.