The Effect of water deficient stress on total non-stractural carbohydrates in Onobrychis radiata and Onobrychis viciifolia

Document Type : Research Paper

Authors

1 Lorestan Agriculture and Natural Resources Research Center

2 Teacher Education Tehran University, Iran

3 Research Institute of Forests and Rangelands.

Abstract

The effect of water deficient stress on total non-stractural carbohydrates in two sainfoin species (Onobrychis radiata & Onobrychis viciifolia) was surveyed. Experimental design was a RCBD with 4 replication. The plants were grown in the greenhouse conditions with the maximum temperature of 38ºC and the minimum temperature of 14ºC. Forty days after the cultivation, both types were put under the care of water deficient stress based on the subtraction from the rate of moisture in the farm 75% field capacity (FC) and 50% FC. Samplings were carried out in germination and reproduction stages, with irrigation level of 100%FC being taken as control. The biochemical surveys showed that root and shoot sugar contents in both species increase under stress conditions as compared to that of control. However the amount of starch decreased under stress conditions, as compared to that of control. O. radiata contained higher osmosis metabolites, such as soluble sugars than O. viciifolia, under stress.

Keywords

References

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Iranian Journal of Rangelands and Forests Plant Breeding and Genetic Research
Volume 12, Issue 3 - Serial Number 17
September 2005
Pages 317-326

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