El-Shamey, I. (2008). PHYSIOLOGICAL EFFECT OF SOME BIOREGULATORS ON WHEAT PLANTS GROWN UNDER SALT STRESS. Journal of Plant Production, 33(6), 4171-4183. doi: 10.21608/jpp.2008.166723
I. Z. El-Shamey. "PHYSIOLOGICAL EFFECT OF SOME BIOREGULATORS ON WHEAT PLANTS GROWN UNDER SALT STRESS". Journal of Plant Production, 33, 6, 2008, 4171-4183. doi: 10.21608/jpp.2008.166723
El-Shamey, I. (2008). 'PHYSIOLOGICAL EFFECT OF SOME BIOREGULATORS ON WHEAT PLANTS GROWN UNDER SALT STRESS', Journal of Plant Production, 33(6), pp. 4171-4183. doi: 10.21608/jpp.2008.166723
El-Shamey, I. PHYSIOLOGICAL EFFECT OF SOME BIOREGULATORS ON WHEAT PLANTS GROWN UNDER SALT STRESS. Journal of Plant Production, 2008; 33(6): 4171-4183. doi: 10.21608/jpp.2008.166723
PHYSIOLOGICAL EFFECT OF SOME BIOREGULATORS ON WHEAT PLANTS GROWN UNDER SALT STRESS
Department of Agricultural Botany, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
Abstract
Wheat plants (Triticm aestirvum L.cv. Sakha 8) were treated with some bioregulators (proline 10& 20ppm) , Salicylic acid (50 & 100 ppm) and paclobutrazol (25ppm) ) with three salinity levels (0, 1000and 6000 ppm NaCl).
The results showed that, without bioregulators application, increasing NaCl levels increased root / shoot ratio to be 5 fold at 6000 ppm higher than control treatment. Adding the bioregulators obviously decreased the root/ shoot ratio under salt stress. Similar trend was detected for the grains yield (g) plant-1 at harvest stage. Whereas, the highest level of salinity caused a decrease of grain yield (g) plant-1 around 14 times lower than that obtained from control treatment. Meanwhile the bioregulator treatments reduces the harmful effect of salinity on grain yield (g) plant-1. Paclobutrazol gave the best positive effect under the highest salinity level but proline at 20 ppm concentration gave the lowest positive effect on the grain yield (g) plant-1 under the highest salinity level. Some physiological parameters such as total chlorophyll, total soluble sugars , free amino acids , indoles , phenols , proline, K and Na contents in leaves were tested as a physiological markers of wheat plants grown under salt stress. The results showed that, the K/Na ratio and indole content in leaves could be used as physiological markers for wheat plants grown under salt stress.
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