Levels of Chlorophyll a, Chlorophyll b and total Chlorophyll pigment in Sresponse to Heat Stress in Eruca sativa plant

Abstract

A field experiment was conducted in the greenhouse conditions in the Department of Biology at the College of  Education - University of Samarra,  In this experiment, we evaluated the effect of a number of stresses and their effect on the levels and activity of chlorophyll.a chlorophyll.b and total chlorophyll, The stresses that were dealt with were  temperature.  In temperature stress we used variable levels of temperatures 4c°, 30c°, 35c° and 40c° and the result were com as flow, an clear and significant increase in levels of chlorophyll a,b and total chlorophyll,  It was 0.4853 µg Chl / mg fw at 4c°, 0.31067 µg Chl / mg fw at 4c° and 0.7963 mg total/g tw at 4c° respectively.