Browsing Masters Degrees (Crop Science) by Title
Now showing items 17-36 of 80
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Distribution and severity of herbicide resistance in the Republic of South Africa.
(2001)No abstract available. -
Effect of ABR effluent irrigation on Swiss chard (Beta vulgaris subsp. cicla) growth and nutrient leaching.
The Decentralised Waste Water Treatment System (DEWATS) is used in countries such as India and Indonesia for the treatment of human waste. The waste is passed through a series of baffles where it is anaerobically degraded, ... -
The effect of daylength and temperature on growth and 'onset of bulbing' in tropical cultivars of onion.
(2005)Onions are widely produced within the tropics, but little scientific research has been done specifically on the Eritrean cultivars, like Hagaz Red 1 and 2 (HR I, and HR 2). Many onion cultivars are limited in their range ... -
The effect of different furrow irrigation regimes on infiltration and sugarcane (Saccharum officinarum L.) yield at Ubombo Swaziland.
(2003)In surface irrigation, the soil serves as a medium for infiltration and for conveying water from the upstream to the downstream end of a field. Soil infiltration characteristics are therefore extremely important for ... -
The effect of ethylmethanesulfonate (EMS) on morphological characteristics and seed quality development of Vernonia (Centrapalus pauciflorus var.ethiopica Willd.)
(2015)Vernonia (Centrapalus pauciflorus Willd.) belongs to the Asteraceae family (Compositae). The crop can produce epoxidized vernolic acid oil that can be used by industries to produce products such as paints.Crop production ... -
Effect of irrigation water regimes applied via subsurface drippers on soil water distribution and on sugarcane (Saccharum officinarum L.) growth.
(2002)The effects of different water regimes on sugarcane growth were investigated for subsurface drip irrigation over three seasons. Arbitrary factors (0.5, 0.75, 1.0 and 1.2 of ETc), were applied to adjust the daily estimates ... -
Effect of simulating flooding pattern on nitrogen management in rice (Oryza sativa L.) production.
(2010)Flooding cycle in wetland rice (Oryza sativa L.) production systems is often subject to seasonal and cultural variations which may affect the availability and uptake of nitrogen in different ways. These factors may more ... -
Effect of smoke solution on performance of Pinus elliottii and P. taeda seed.
(2008)In recent years research has shown that exposing seed to smoke or smoke solutions results in increased germination of some, but not all the species tested. Tests showed that exposing seeds of some commercial crops to smoke ... -
Effect of water stress imposed at tillering, flowering and grain filling in irrigated wheat (Triticum Aestivum L.) genotypes.
(2017)Wheat is one of the most important crops grown in South Africa. However, its production is threatened by the current drought periods the country has been experiencing. This includes a decline in the production of irrigated ... -
The effects of chlormequat chloride and ethephon on selected small grain cereals in South Africa.
(2006)Lodging poses a serious limitation to successful economic production of small grain cereals and can lead to extensive yield and quality losses. Plant growth regulators (PGR's) that reduce plant height and lodging have ... -
Effects of different levels of competition by Cyperus esculentus L. on the growth and surcrose yield of irrigated sugarcane (Saccharum officinarum L.) in Northern Swaziland.
(1995)The study was undertaken to evaluate the interference of Cyperus esculentus (L.) with growth and quality of irrigated sugarcane (Saccharum officinarum (L.)) in northern Swaziland, and to quantify or characterise yield ... -
The effects of urine and urine-separated plant nutrient sources on growth and biomass production of perennial ryegrass (Lolium perenne. L)
(2015)Urine contains plant essential nutrients, which may pose pollution problems if disposed of in the environment. Struvite is a concentrated phosphorus fertilizer produced by precipitation of Magnesium Ammonium Phosphate after ... -
Ethylmethanesulfonate mutagenesis in selected Vernonia galamensis variety ethiopica lines.
(2012)The overriding objective of this study was to induce genetic variation in Vernonia (Vernonia galamensis variety ethiopica) using ethylmethanesulfonate (EMS) and select mutants for subsequent selective breeding. Vernonia ... -
Evaluating the agronomic performance of selected yam varieties.
Food security ranks among South Africa’s top ten priorities. While there is a range of crops, both major and minor, that are currently being exploited and explored for food security within South Africa, there is a need to ... -
Evaluating water use efficiency of maize in different intercropping systems with legumes.
(2016)Abstract available in PDF file. -
Evaluation of Elite Heat and Drought Tolerant Wheat (Triticum aestivum) Genotypes Based on Drought Tolerance and Water-Use Efficiency Parameters.
(2019)Drought stress is one of the most important limiting factors to sustainable and profitable wheat production in sub-Saharan Africa (SSA), including South Africa. Use of drought adapted genetic resources is regarded to be ... -
Field assessment of agronomic traits and in vitro acetolactate synthase characterisation of imazapyr herbicide tolerant sugarcane.
(2013)Weed control is a major cost for growers in the sugarcane industry, especially for monocotyledonous species such as Cynodon and Rottboellia spp. The introduction of imazapyr-tolerant sugarcane would be advantageous as this ... -
Food security potential of bottle gourd [Lagenaria siceraria (Molina Standly)] landraces : an agronomic perspective.
(2014)Issues surrounding food security of rural households in sub-Saharan Africa have become topical in the recent years due to low food production and poverty combined with increasing population which often leads to malnutrition. ... -
Genetic diversity, correlations and path coefficient analysis in popcorn (Zea mays L. everta)
(2012)Popcorn is the most popular snack food in the world. Genetic diversity is of major concern in popcorn breeding. High genetic diversity allows manipulation of different genotypes to breed new varieties. There is very little ...