Influence of salinity on germination and early seedling of five wheat (Triticum aestivum L) genotypes

2021 ◽  
Vol 10 (4) ◽  
Author(s):  
Nazeer Ali Panhwar
Author(s):  
Amal Faraj Ehtaiwesh ◽  
Fatma Hossen Rashed

Salinity is the major abiotic stress that reduces plant growth and productivity worldwide. The objectives of this study were to quantify the effects of salinity on seedling characters of soft wheat Triticum aestivum L genotypes and to define if responses varied among wheat genotypes. For that, 12 genotypes of wheat were evaluated for the salinity tolerance in artificially induced with NaCl at their germination and early seedling stage.  Seeds were subjected to four levels of salinity (0, 50, 100 and 150 mM NaCl) and raised for eight days under optimum conditions to calculate the final germination percentage, speed of germination, mean daily germination, shoot and root length, and seedling fresh and dry weight. The response of genotypes were divers among the studied traits. At higher concentration of NaCl (100 and 150mM), speed of germination and mean daily germination were delayed and final germination percentage was decreased. At higher salinity level, significant decrease in shoots and roots length, seedling dry weight and seedling vigor. Additionally, the study showed considerable variation in salinity tolerance among wheat genotypes for studied traits. The study concluded that there is a genetic variability among genotypes and that genotypes varied in their response to salinity stress and that genotypes Sabha, Salambo, Makkawi and Bushi were the most tolerant genotypes.


1995 ◽  
Vol 75 (1) ◽  
pp. 175-177 ◽  
Author(s):  
R. Reggiani ◽  
A. Bertani ◽  
S. Bozo

We studied the effects of three salinity levels (50, 100 and 150 mM NaCl) on the early seedling growth of three wheat (Triticum aestivum L.) cultivars of Albanian origin characterized by different sensitivities to salt. Sodium accumulation was similar in seedlings of different cultivars and, in general, Na+ was confined to the root. Chloride accumulated at high levels in both the root and the shoot but least so in Daity. No appreciable differences were observed in K+ content. The most salt-tolerant cultivar showed a higher capacity for osmoregulation than the other two cultivars. Key words: Ion regulation, ion toxicity, osmoregulation, salinity, Triticum aestivum


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