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Growth regulator manipulation of apple bud dormancy progressions under conditions of inadequate winter chilling
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L.A. Allderman --- , South Africa W.J. Steyn --- Department of Horticultural Science, South Africa N.C. Cook --- , South AfricaElgin (34°S, 19°E; 305 m.a.s.l.), typical of South African apple growing regions, accumulates 745 Utah Chill Units (CU) p.a. The chilling requirement of ‘Golden Delicious’ apple (Malus xdomesf/ca Borkh.) is c.a. 1100 CU. Consequently, the chilling requirement is not satisfied... -
In vitro shoot multiplication and rooting from seedling explants of Pterocarpus angolensis in Zambia
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Exildah Chisha-Kasumu AdamH. Price Steve WoodwardPterocarpus angolensis is a savanna tree species growing mostly in the southern part of Africa. Exploitation for its medicinal and commercial uses has led to diminishing of wild populations. Developing reliable in vitro protocols for propagation would enable mass production... -
The effect of bacterial-based biofertilisers and cytokinin on the emergence of sunflower at non-limiting and supra-optimal temperatures
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Andries A Nel --- Agricultural Research Council–Grain Crops Institute, South AfricaSubsurface sunflower (Helianthus annuus L.) seedling growth often deteriorates on sandy-textured soils due to supra-optimal temperature levels on the Highveld area of South Africa leading to poor emergence and suboptimum plant population densities. It has been shown that seedling growth...