Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"glasshouses"”.
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Comparative studies of three aphelinid parasitoids of Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae) with emphasis on Eretmocerus eremicus Rose and Zolnerowich : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Plant Protection (Entomology) at Massey University, Palmerston North, New Zealand
… be beneficial as a biological control agent in glasshouses - except in winter. Two further studies were performed on Er. eremicus to determine the effect of adult parasitoid age on levels of parsatism and preference for specific greenhouse whitefly nymph instars. These studies found that the …
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An investigation of the use of exogenous Glycine Betaine and Seaweed Extract to ameliorate drought stress in cutting propagation of Griselinia littoralis and Lavatera x Clementii
… drought stress during cutting propagation in glasshouses. The research first examined whether exogenous spray application (GB and GB+SWE) alleviates the detrimental effect of drought stress on the root growth of Griselinia littoralis in fertilized and unfertilized potting mix. Then GB and …
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Application of silicon to improve yield and quality of potatoes (Solanum Tuberrosum L.)
… farm and Department of Plant Pathology glasshouses of the University of Pretoria to evaluate the effect of various soil amendments on potato yield and quality. The effect of these soil amendments on pH was also investigated as P-uptake and development of common scab in potatoes are pH …
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Environmental drivers of bulb production in brassicas
… dates and in three temperature regimes using two glasshouses and an outside environment from December 2011 to March 2012. ‘Aparima Gold’ swede had a thermal time requirement to 50% emergence of 83oCd (Tb = 0oC) whereas the turnip cultivars averaged 56oCd (Tb = 3.6oC). Total dry matter production …