THE EVALUATION OF COLD AND DROUGHT STRESS OF TURFGRASSES BY ELECTROLYTIC AND NINHYDRIN METHODS

Abstract
Electrolytic analyses of fresh blade tissue provided a rapid and reliable estimate of cold or drought stress of several turfgrasses in artificial laboratory tests. Resistance and conductivity readings and ninhydrin analyses were in close agreement with visual recovery of plant material following artificial low temperature treatments. In drought tests, electrolytic analyses clearly indicated the superiority of creeping red fescue over Kentucky bluegrass in drought tolerance.