Evaluation of Different Rice Genotypes in Response to Salinity Stress in Seedling Stage

Author: Seyede Fateme Mohamadi*, Nadali Bagheri, Ghafar Kiani and Nadali Babaeian Jelodar

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Abstract

In order to assess the response of rice genotypes to salinity stress at seedling stage a factorial experiment with three replications in a completely randomized design in the biotechnology lab of Sari University of Agricultural Sciences and Natural Resources was carried out. In this experiment, the numbers of 17 rice genotypes in 4 salinity levels (0, 40, 80 and 120 mM) were studied. In this study biomass, root and shoot length, root and shoot fresh and dry weight traits was measured. Analysis of variance showed that significant effect of salinity on the traits of rice genotypes. According to the results of mean comparison of traits, by increasing the salinity of control level to 40, 80 and 120 mM levels, significantly reduced all characters. Shoot dry weight had the most reduction percent and root length had the lowest reduction percent in salinity. Simple correlation coefficients between traits showed a significant positive correlation between biomass and root dry weight (r = 0.998).

Keywords

Correlation, Principal components, Rice, Salinity, Seedling

Conclusion

Research about the trend of population increase shows that between years 1950-2015, the population of earth has increased from 2.6 billion to 6 billion, therefore, the earth population is going to reach 11 billion by 2050. Food is one of the basic human rights. To provide food security, the production of food most be doubled. These days, producing rice has gained importance and after wheat, it is considered the second main food of people. Rice is the food of 2.4 billion people and provides 20% calorie of body. In comparison to large Asian countries such as china and India, Iran doesn't have considerable rice lands, but 600 hectares of rice fields have determining roles in providing food security and increasing or national income. Some of the limiting factors and an alarm in producing this strategic product include damage causes, the high cost of producing and misusing the rice fields (Sakina et al, 2016). Environmental stresses are the most important factors to decrease agricultural pr

References

Research about the trend of population increase shows that between years 1950-2015, the population of earth has increased from 2.6 billion to 6 billion, therefore, the earth population is going to reach 11 billion by 2050. Food is one of the basic human rights. To provide food security, the production of food most be doubled. These days, producing rice has gained importance and after wheat, it is considered the second main food of people. Rice is the food of 2.4 billion people and provides 20% calorie of body. In comparison to large Asian countries such as china and India, Iran doesn't have considerable rice lands, but 600 hectares of rice fields have determining roles in providing food security and increasing or national income. Some of the limiting factors and an alarm in producing this strategic product include damage causes, the high cost of producing and misusing the rice fields (Sakina et al, 2016). Environmental stresses are the most important factors to decrease agricultural pr

How to cite this article

Seyede Fateme Mohamadi, Nadali Bagheri, Ghafar Kiani and Nadali Babaeian Jelodar (2017). Evaluation of Different Rice Genotypes in Response to Salinity Stress in Seedling Stage. Biological Forum – An International Journal 9(1): 174-182.