جستجوی مقالات مرتبط با کلیدواژه "salinity level" در نشریات گروه "بیوتکنولوژی و ژنتیک گیاهی"

Salinity is one of the most abiotic stress that cased reduce the yield of crops. Quinoa has role importance in human nutrition and have a high resistance to salinity stress. In order to investigate the effects of salinity stress on germination characteristics of quinoa cultivar Q26, experiment was conducted based a complete randomized design (CRD) with four replication. The treatments consisted of different concentrations of sodium chloride (NaCl) (0,4, 8,12,16,20, 30and40 dS/m) on the germination seed of quinoa under laboratory conditions. Salinity haveundesirable effects ontraits study such as germination percentage, germination rate, shoot and root length, shoot and root dry weight, stem-to-root ratio (Coefficient of Allometry), germination uniformity and time to 50 percent germination.The percent germinationsignificantly reduce in 30 dS/m salinity,but many traits reduced in concentration 40 dS/m of NaCl. The percentage of germination was not significant between control and 30 dS/m treatment, but at 40 dS/m concentration reduced to 75 percent. With increase salinity levels, time to 50 percent germination increased significantly. Germination rate also reduced significantly by salinity levels.The shoot-to-root ratio decreased with increasing salinity up to 20 dS/m but reached a maximum at 30 dS/m The results showed that quinoa cultivar Q26 has high resistance to salinity stress in germination stage,therefore it can be said that thiscultivar have a good resistance to 30 dS/mof sodium chlorideand can be thebest cultivar for saline conditionafter field evaluation and appropriate climate.