Pelleting or Priming Seed with Calcium Improves Groundnut Seedling Survival in Acid Soils

Autor:	P. S. Hammes, M. R. Murata, G. E. Zharare
Rok vydání:	2008
Předmět:	biology Physiology Field experiment Potassium food and beverages chemistry.chemical_element Priming (agriculture) Calcium biology.organism_classification Calcium nitrate chemistry.chemical_compound Horticulture Calcium carbonate chemistry Agronomy Seedling Loam Agronomy and Crop Science
Zdroj:	Journal of Plant Nutrition. 31:1736-1745
ISSN:	1532-4087 0190-4167
DOI:	10.1080/01904160802324787
Popis:	A growth chamber experiment and a field experiment were conducted to investigate the effects of pelleting or priming groundnut seed with calcium (Ca), either as calcium sulfate (CaSO4), calcium chloride (CaCl2), calcium nitrate [Ca(NO3)2], calcium carbonate (CaCO3) or Calcimax on growth of groundnut seedlings in acid soils. In the growth chamber experiment, Ca-treated and non-treated groundnut seeds were planted in acid-washed sand and watered with a dilute nutrient solution of pH 4.0 or 5.5. In the field experiment, the seeds were planted in an acid sand clay loam of pH [potassium chloride (KCl)] 4.8. Generally, pelleting or priming the seed with a Ca compound significantly reduced seedling mortality. Also, pelleting groundnut seed with Ca enhanced plant growth. An additional effect of priming was earlier emergence. The most effective Ca compound was CaSO4 among the priming treatments, whereas CaCO3 was the most effective among the pelleting treatments to reduce seedling mortality.
Databáze:	OpenAIRE
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