Determination of the botanical properties and glucomannan contents of some salep species cultivated in ？anl？urfa conditions

This research was carried out to determination of the some botanical properties and glucomannan contents of some salep species (Ophrys lutea Cav., Serapias vomeracea (Burm. Fill.) Brig, Ophrys mammosa Desf., Ophrys umbilicata Desf. and Orchis sancta L.) under ？anl？urfa conditions, in 2016-2017 winter growing season, at the Harran University Agricultural Faculty Research Area. The field experiment was conducted to the Randomised Block Design, with 3 replications. The leaves length and width, the leaves number, the tuber number, the plant height, the flowers number and the glucomannan ratio were investigated. The plant height ranged between 9.71-24.33 cm, the number of flowers ranged between 2.50-12.03 number plant-1, the number of leaves ranged between 2.10-5.16 number plant-1, the number of tuber ranged between 1.00-1.50 number plant-1, the average length of leaves ranged between 2.82-9.34 cm, the average width of leaves ranged from 1.33-1.95 cm and the tuber yield ranged between 1.69-9.11 g plant-1 and the glucomannan ratio ranged between 28.60-59.63%. The highest tuber yield was determined in Orchis sancta L. and the highest glucomannan ratio was determined in the Serapias vomeracea (Burm Fill.) Brig. For this reason, it can be suggested that these species may be cultivated under ？anl？urfa conditions