Seasonal Variation in Nutrient Status of Australian Waxflowers

Autor:	W. L. Chvyl, N. A. Maier
Rok vydání:	2002
Předmět:	biology Physiology Phosphorus chemistry.chemical_element Seasonality biology.organism_classification medicine.disease Horticulture Nutrient chemistry Botany medicine Chamelaucium uncinatum Composition (visual arts) Cultivar Chamelaucium Agronomy and Crop Science Plant nutrition
Zdroj:	Journal of Plant Nutrition. 26:1873-1888
ISSN:	1532-4087 0190-4167
DOI:	10.1081/pln-120023289
Popis:	Seasonal fluctuations in the concentrations of 12 nutrients were assessed over 3 years for Chamelaucium uncinatum cultivars Alba and Purple Pride and for Chamelaucium hybrid (C. floriferum × C. uncinatum) known locally as Walpole wax. The plantings were located in the Mount Lofty Ranges, Lower South East and Lower Murray regions of South Australia. Tips of stems, 25–40 mm long, were collected on a monthly basis. The nutrient data were used to identify the most suitable time for tissue analysis; to determine the magnitude of the differences in nutrient composition between cultivars; and to determine the correlations between nutrients. The effect of the sampling error was also determined. The seasonal decrease in concentrations of nitrogen (N), phosphorus (P), potassium (K), magnesium (Mg), and sulfur (S) corresponded with vegetative flushing (growth dilution effect). Concentrations of the variably mobile nutrients copper (Cu) and zinc (Zn) were unstable, particularly during autumn–winter. Concentr...
Databáze:	OpenAIRE
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