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Lateral root production of witloof chicory (Cichorium intybus L.) in response to ebb-and-flood nutrient supply in hydroponics
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: R. König --- Department of Agronomy, Republic of South Africa N. J.J. Combrink --- Department of Agronomy, Republic of South AfricaWitloof chicory is currently grown on a large scale by making use of gravity-driven hydroponic cascade systems. A possible drawback of this method may be that the taproot is only submerged in the nutrient solution to a depth of about... -
Effect of gravity on the quality of witloof chicory (Cichorium intybus L.)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: R. König --- Department of Agronomy, Republic of South Africa N. J.J. Combrink --- Department of Agronomy, Republic of South AfricaIn order to establish the effect of gravity on chicon quality and yield, witloof chicory roots were forced at three angles. It was shown that roots forced in a horizontal position produced a significantly lower marketable chicon yield than roots... -
Potato mini tuber production affected by a short-term calcium deficiency
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: R. Barnard --- Department of Agronomy, Republic of South Africa N. J.J. Combrink --- Department of Agronomy, Republic of South AfricaIt was previously reported that tuber initiation is restricted in soil-less production systems owing to a lack of mechanical resistance and that a low-pH shock treatment over a 10-h period alleviated this problem. Tuber initiation was investigated under soil-less conditions... -
A comparison between hydroponics systems and pots for growing wheat in the greenhouse
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A. G.A. du Toit --- , M.T. Labuschagne --- Department of Plant Sciences, South AfricaGrowing wheat hydroponically for crossing block and germplasm multiplication purposes may hold emergence, yield and seed quality advantages compared to traditional planting methods. The aim of this study was to compare wheat planted in pots with soil to hydroponically grown... -
Comparative performance of tomato cultivars cultivated in two hydroponic production systems
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.M. Maboko --- , South Africa C.P. Du Plooy --- , South Africa I. Bertling --- ,Cultivar selection for different hydroponic production systems is an important management decision, potentially impacting the tomato grower’s profitability. Knowledge on the performance of tomato cultivars, in specific hydroponic systems (open-bag and closed system) under South African conditions, is still very... -
Pinus patula and pine hybrid hedge productivity in South Africa: a comparison between two vegetative propagation systems exposed to natural infection by Fusarium circinatum
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Craig M Ford --- Sappi Forests, Shaw Research Centre, South Africa Nicoletta B Jones --- Sappi Forests, Shaw Research Centre, South Africa Paxie WC Chirwa --- Department of Plant Production and Soil Science, South AfricaIn response to the Fusarium circinatum pine pathogen threat in southern Africa, research has been conducted on the development of F. circinatum-tolerant P. patula and P. patula hybrids. The objective of this study was to investigate the propagation potential of... -
The role of nutrient solution composition on the uptake of nutrients, growth and vase life of tulips grown hydroponically under South African conditions
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Geline Derbyshire --- Department of Agronomy, South Africa Eleanor W Hoffman --- Department of Horticultural Sciences, South Africa Estelle Kempen --- Department of Agronomy, South AfricaAn understanding and optimisation of the key agronomical aspects required for successful hydroponic cultivation of cut tulips in South Africa, a warm production region, is essential to unlock its commercial potential. In this study the effect of nutrient solution composition,...