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The Effect of Ploidy Level on Morphology, Agronomy and Nutritional Qualities of Five Stylosanthes Species
(1978) Obajim, A.O.; Adebanjo, A.K.
The effect of ploidy level on morphology, agronomy, chemical composition and in vitro digestibility at five physiological (early and late vegetative, early and late flowering and seed formation) stages was investigated using diploid S. humilis (USA), a colchicine induced tetraploid S. humilis var. Ibadan together with an adapted diploid S. gracilis, a natural hexaploid S.erecta Polyploid cultivars had bigger flowers and pollen grains, broader guard cells, lower dry matter content and higher in vitro digestibility at the early vegetative stage indicating that these traits are governed mainly by the quantity of genes present. On the other hand, no general statement could be made on the effect of ploidy level on the leaf size, fruit weight, plant height, internode length, ash, crude fibre, crude protein either extract and nitrogen free extract content at all five stages. It appears as if these latter traits are controlled both by the quality and the quantity of genes affecting these traits
National Irrigation Board: Perkerra Irrigation Scheme Research Programme Forward Plan of Work 1997
(National Irrigation Board, 1997) National Irrigation Board