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Nitrogen fertilization of cabbages in Natal
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: T. Richards --- Department of Horticultural Science, I.E. Smith --- Department of Horticultural Science, R. Bennett --- Department of Horticultural Science,Cabbage (Brassica oleracea var. capitata f. alba cv. Gloria Osena) yields were measured in two experiments on a Westleigh soil near Pietermaritzburg in response to different methods, rates and times of application of nitrogen fertilizer. -
Parasitism of Plutella xylostella (Lepidoptera, Plutellidae): Field and laboratory observations
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: S.M. Waladde --- , Republic of South Africa M.F. Leutle --- , Republic of South Africa M.H. Villet --- , Republic of South AfricaInvestigations carried out at Alice and its rural environs in the Eastern Cape province of South Africa, showed that parasitoids affecting the diamondback moth Plutella xylostella (L.) (Lepidoptera: Plutellidae) were Cotesia plutellae, Apanteles eriophyes, Diadegma sp., Diadromus collaris, Oomyzus sokolowskii... -
Predicting seedling emergence of cabbage and onion using vigour tests
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.K. Fessehazion --- Department of Plant Production and Soil Science, South Africa D. Marais --- Department of Plant Production and Soil Science, South Africa P.J. Robbertse --- Department of Plant Production and Soil Science, South AfricaPredicting seedling emergence using standard and non-standard germination temperatures, standard accelerated ageing (AA) and saturated salt accelerated ageing (SSAA) tests, were investigated. Germinations were performed at temperatures of 10°, 20°, 20°/30° and 30°C for cabbage (Brassica oleracea var. capitata L.)... -
Interesting new facts on Heterodera schachtii (Nematoda: Heteroderidae) from South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Antoinette Swart --- , South Africa Rinus Knoetze --- , South AfricaIn January 2017 Heterodera schachtii Schmidt, 1871 was collected from a potato field, formerly planted to cabbage, in the Tarlton area of South Africa. As H. schachtii from South Africa has never been studied molecularly, this short communication is the...