Research Journal of Mutagenesis1994-7917xxxx-xxxxAsian Network for Scientific Information10.3923/rjmutag.2014.14.22OmoregieUjomonigho E. MensahJoseph K. IkhajiagbeBeckley 1201441The present study investigated the effects of sodium azide pretreatment of
grains on the germination of five varieties of rice. Germination parameters
of FARO 44, FARO 52, FARO 57, NERICA L-34 and NERICA L-47 rice varieties treated
with different concentrations of sodium azide was studied in petri dish experiments.
Lethal dose (LD50) was estimated at 0.032% sodium azide. The concentrations
of sodium azide solution (0.004, 0.008, 0.016 and 0.032% sodium azide at pH
3) were prepared on volume/weight basis. Control was distilled water at pH 7.
Viable grains were pretreated in sodium azide solutions for 6 h. Germination
was monitored from the second to fourteenth Day after Initiation (DAI). There
were significant differences (p = 0.05) in percentage germination, length of
radicles, length of plumules and dry weights of sprouting grains. Germination
percentage on the fourth day after initiation was 0% in FARO 57 and NERICA L-47
pre-treated in 0.032% sodium azide. At 14 DAI, germination percentage in all
varieties including the control ranged between 94 and 100%. The longest and
shortest radicles were both obtained in NERICA L-47 (86.25, 2.50 mm) in 0.032
and 0%, respectively. The shortest plumules (1.00 mm) were obtained in both
NERICA L-34 and NERICA L-47, pre-treated in 0.032% sodium azide with and longest
(50.75 mm) in 0% sodium azide pre-treated NERICA L-47 at 6 DAI. The experiment
showed that sodium azide significantly delayed but did not inhibit germination.]]>Ahloowalia, B.S. and M. Maluszynski,2001118167173Akinwale, M.G., B.O. Akinyele, A.C. Odiyi, F. Nwilene, G. Gregorio and O.E. Oyetunji,20122012pp: 640Alika, J.E.,20062nd Edn.,Pages: 366Pages: 366Al-Qurainy, F. and S. Khan,2009615891601Bradford, K.J.,199094840849Cheng, X. and M. Gao,198828281288Crawford, G.W. and C. Shen,199872858866Gichner, T. and J. Veleminsky,1977Arabidopsis thaliana.]]>19153155Kamra, O.P. and B. Gollapudi,1979Drosophila melanogaster.]]>25381384Khan, M.A. and S. Gulzar,2003Sporobolus ioclados: A saline desert grass.]]>53387394Khan, S., M.R. Wani and K. Parveen,2004Vigna radiate (L.) Wilczek.]]>36845850Khan, S., M.R. Wani and K. Parveen,200518343347Kiruki, S., L.A. Onek and M. Limo,2006Striga hermonthica seed germination and parasitism on maize varieties.]]>5866870Kleinhofs, A., C. Sander, R.A. Nilian and C.F. Konzak,19741974pp: 195-199pp: 195-199Kleinhofs, A., W.M. Owais and R.A. Nilan,197855165195Lal, G.M., B. Toms and S. Smith,2009113Maji, A.T.,20092009pp: 5Mensah, J.K. and B. Obadoni,2007Arachis hypogaea L.).]]>6668671Mostafa, G.G.,2011Helianthus annuus L.]]>57685Niknejad, M.,19751975pp: 132-145pp: 132-145Owais, W.M. and A. Kleinhofs,1988197313323Pearson, O.W., R.A. Nilan and C. Sander,197446161Pearson, O.W., C. Sander and R.A. Nilan,197515315322Singh, V.P. and R.D.S. Yadav,19874515Sinha, A. and J.P. Lal,20071 parameters and qualitative changes induced in M2 generation in lentil.]]>30180185Suzuki, Y., Y. Sano, K. Ise, U. Matsukura, N. Aoki and H. Sato,200858209215Van der Veen, J.H.,1966332626Yuan, H.Y. and Z.L. Zhang,1993Hordeum vulgare L.]]>352026