The effects spray applications of dry yeast suspension and liquorice root extractions on the vegetative and tubers growth characteristics of wild orchid Anacamptis  coriophora

	The effects spray applications of dry yeast suspension and liquorice root extractions on the vegetative and tubers growth characteristics of wild orchid Anacamptis coriophora
Euphrates Journal of Agriculture Science
Article 1, Volume 5, Issue 3, 2013, Pages 28-36
Abstract
ABSTRACT : This experiment was performed at the fields of the College of Agriculture/University of Sulaimani, during the February 20th to May 26th, 2009, to study the effects spray applications of dry yeast suspension and liquorice root extractions on the vegetative growth characteristics . This experiment included the study of four levels of dry yeast extraction (0, 2.5, 5 and 7.5 g/L), and four levels of liquorice root extraction (0, 2.5, 5 and 7.5 g/L) and their interaction, The plants were sprayed with dry yeast and liquorice root extractions just after the emergence of the second true leaf until beginning of flowering and every 10 days with three days interval between the two extractions sprays. The experiment was laid out in pots in a factorial completely randomized design (CRD) with five replications, means were compared using Duncan’s Multiple Range Test (P≤0.05). Results of this experiment showed the superiorities of spray application treatments of dry yeast (5 g/L) and liquorice root (5 g/L) extractions, either alone or combined with each other in vegetative growth characteristics (plant height, number of leaves, shoot dry matter percentage), tuber growth characteristics (tuber length, tuber diameter, tuber dry matter percentage).

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