The Effect of Nacl Priming on Emergence, Growth and Yield of Fenugreek Under Saline Conditions

Abstract

Salinity is considered as a major abiotic stress affecting crop production in arid and semi-arid regions in the world. Poor germination and decrease of seedling growth are major results of poor crop establishment and failure. Many research studies have shown that seed priming is an efficient method for increasing plant growth and yield in saline condition. For this reason, this experiment was conducted to evaluate the effects of NaCl priming on the emergence and seedling growth of Tunisian fenugreek (Trigonella foenum-graecum L.) under salinity conditions. Seeds of fenugreek were primed with NaCl (4 g L-1) for 36 h in continuous 25°C. Primed (P) and non-primed (NP) seeds were sown in plastic pots and placed in greenhouse for 4 months. Experiments were conducted using various NaCl concentrations (0, 4, 6, 8 and 10 g L-1). Results showed that emergence percentage of primed seeds was greater than nonprimed seeds. Roots length, plant height, leaf area, fresh and dry weight and yields of plants derived from primed seeds were higher compared with non-primed seeds. Na+ content of plants derived from primed seeds was lower than that of primed ones. In the other side, K+ and Ca2+ content of plants derived from primed seeds was higher compared with plants derived from nonprimed seeds. These results suggest that NaCl priming of fenugreek seeds increased salt tolerance of seedlings by reducing Na+ and promoting K+ and Ca2+ accumulation.

Screening Tomato Genotypes for Salt Tolerance

“…This is probably due to the reaction of salinity, which reduces the contribution of phytohormones in the biosynthesis (Cuartero et al, 2006). These results are in accordance with Ahmet et al, (2009) and Soughir et al, (2013 …”

“…In the present study a reduction in root dry weight was recorded in stressed conditions in all the genotypes. Present investigation is in confirmation with Ahmet et al, (2009) and Soughir et al, (2013). Root dry weight depends on the germination percent and root length, low water uptake and restricted metabolic activities were given to decrease in the root dry weight.…”

Determination of an optimal priming duration and concentration protocol for pepper seeds (Capsicum annuum L.)

“…It was effective in alleviating the effect of salt stress on wheat plants through altering the levels of different plant phytohormones (Iqbal et al, 2006). Generally, primed seeds germinate faster and more uniformly than unprimed seeds of the same lot (Soughir et al, 2013;Elouaer and Hannachi, 2012). The difference between primed and control seeds are greater in arid and semi-arid conditions when there are more exposure to difficult environmental conditions such as salinity or water deficit.…”

“…Also, Khan et al (2009) observed that NaCl priming of seeds improved seedling vigor of pepper under salt stress conditions. Similarly, Soughir et al (2013) demonstrated that seed priming could be used successfully to ameliorate the emergence of fenugreek plants cultivated in pots under salt stress. So, the optimization of priming technique is important to determinate the optimal soaking duration and the optimal concentration of priming agent.…”

The Evaluation of the Responses of Pinto Bean (Phaseolus vulgaris L.) Seedling Emergence and Growth to Different Seed Priming

“…Pretreatment increased the leaf area index. Soughir et al (2013) reported that leaf area index plants derived from primed seeds were higher compared with non-primed seeds.…”