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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 5
First page : (8) Last page : (13)
Article doi: :

Assessment of Germination Parameters, Accelerated Ageing and Conductivity Tests on Seeds of Upland Rice (Oryza sativa L.)

Adesanya F.O.1*, Fakorede M.A.B.2,   Ajayi S.A.2, Maji, A. T.1, Awosanmi F.E.2 and Olisa F.3

1National Cereals Research Institute Badeggi, Nigeria
2Obafemi Awolowo University Ile Ife, Nigeria
3National Seed Council Abuja, Nigeria
*Corresponding Author E-mail:
Received: 28.08.2018  |  Revised: 24.09.2018   |  Accepted: 3.10.2018



The study was to determine the germination percentages of upland rice and to investigate the possible effects of accelerated ageing upon upland rice varieties. Seed of seven upland rice varieties were subjected to accelerated ageing treatment for 72 hours at 430C and 100% relative humidity at Seed Science laboratory of Obafemi Awolowo University, Ile Ife, Osun State, Nigeria.  The experiment was laid out in a randomized complete block design with four replicates.  Observations were made on germination %, germination index, germination rate index of both aged and unaged rice seeds, conductivity test and growth analysis test. The data were subjected to Analysis of Variance (ANOVA) and means were separated using LSD 5% level of probability, mean comparison and mean ranking were done among the varieties. Correlation analysis was also done. Accelerated ageing percentage showed significant positive correlation with seedling traits (fresh weight, dry weight,). It was discovered that   germination % of a variety reduced drastically at 72 hours of ageing. In addition conductivity test had significant negative correlations with fresh weight, and significantly positive correlated with dry weight. Accelerated ageing and conductivity test   should be incorporated into commercial seed testing rather than the usual use of germination test.

Key words: Rice, Germination percentage, Accelerated ageing, Conductivity, Correlation.

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Cite this article: Adesanya, F.O., Fakorede, M.A.B., Ajayi, S.A., Maji, A. T., Awosanmi, F.E. and Olisa, F., Assessment of Germination Parameters, Accelerated Ageing and Conductivity Tests on Seeds of Upland Rice (Oryza sativa L.), Int. J. Pure App. Biosci.6(5): 8-13 (2018). doi: