Sunday 24 April 2016

Effect of Salt Stress on Germination and Growth of T. foenumgraecum Seedlings

Seedling establishment is a critical stage that determines production of crop at later stages, thus it necessitates studying the impact of salt stress at primary level. Present study is aimed to evaluate the effect of salinity stress on germination as well as growth of seedlings of T. foenumgraecum. Seedling germination showed 100% germination of seeds upto 100mM NaCl treatment but beyond it there is a sharp decline in germination percentage as it showed 60% decline in 200mM NaCl added set. Salt stress at higher salinity levels (beyond 100mM NaCl) also resulted in delayed seedling germination. Results showed there is not much variation in 50 and 100mM NaCl treatments in comparison to control. But it shows strong inhibition in terms of length as well as fresh weight of different plant parts as cotyledon, hypocotyls as well as roots of seedlings with increasing level of salt solution particularly at higher salt treatments as 150 and 200mM NaCl treatments. This decline was more prominent in roots (71.43% and 73.47%) then in shoots (54.8% and 55.06%) and least in cotyledons (21.87% and 19.51%) in comparison to control in 7 and 15 days old fenugreek seedlings. The increasing salt concentrations increase the phytotoxicity of shoot and root and decrease the tolerance indices and the seedling vigor indices - See more at: 

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