Trends in Applied Sciences Research1819-35792151-7908Science International10.3923/tasr.2011.182.189 Infection and Reproductive Losses in Rice (Oryza sativa Linn.)]]>OnwughaluJ.T. AboM.E. OkoroJ.K. OnasanyaA. SereY. 2201162The study on Rice yellow mottle virus (RYMV) infection and reproductive losses in rice was carried out under screenhouse condition in Nigeria. Thirty-five rice varieties were evaluated for RYMV resistance. Percent productive tillers, date to 50% flowering and percent spikelets fertility per plant were between 43.2-96.7%, 57.67-112 days and 0-71.8%, respectively. Number of panicles per plant, number of grains per panicle and 1000 grain weight per plant were between 8.33-45.67, 0-77 and 0-27.57 g, respectively. Yield losses of between 17-100% were obtained from all the rice varieties evaluated. Out of the 35 rice varieties studied, only Gigante (18%), Moroberekan (19%) and NERICA-L 42 (32%), have the least yield losses and RYMV resistance characteristics. The three varieties (Gigante, Moroberekan and NERICA-L 42) are known to possess stable resistance characteristic to RYMV disease and will comparatively be suitable for cultivation in areas where RYMV incidence is endemic and on a long term be used by rice breeders as sources for breeding for durable resistance to RYMV disease in Nigeria.]]>Abo, M.E., M.D. Alegbejo, A.A. Sy and S.M. Misari,2000171936Abo, M.E., M.N. Ukwungwu and A. Onasanya,2002Sobemovirus in Northern Nigeria.]]>20198202Awoderu, V.A.,199137356362Abo, M.E., A.S. Gana, A.T. Maji, M.N. Ukwungwu and E.D. Imolehin,2005Rice yellow mottle virus RYMV) at Badeggi, Nigeria.]]>23100104Bailiss, K.W. and S. Senananyake,1984Vicia faba L.).]]>33185192Banwo, O.O., M.D. Adegbejo and M.E. Abo,2004Rice yellow mottle sobemovirus: A continental problem in Africa.]]>402636Fomba, S.N.,198872641642Gnanamanickam, S.S.,2009Vol. 8,pp: 13-42pp: 13-42Heinrichs, E.A., A.A. Sy, S.K. Akator and I. Oyediran,1997Rice yellow mottle virus in lowland rice in Cote d`Ivoire.]]>43291297Khan, A.Z., H. Khan, R. Khan, Adel Ghoneim and A. Ebid,20072529534Nwilene, F.E., A.K. Traore, A.N. Asidi, Y. Sere, A. Onasanya and M.E. Abo,20096189197Onasanya, A., Y. Sere, F. Nwilene, M.E. Abo and K. Akator,2004Sobemovirus in Cote d'Ivoire.]]>3718723Onasanya, A., Y. Sere, M. Sie, K. Akator, M. M. Coulibaly and A. Hamadoun,2006Sobemovirus, in Mali.]]>5368372Peng, S.,20072007Rossel, H.W., K.A. Ayotade, G. Thottappilly, A.A. Adeoti, K. Alluri, M.S. Alam and K. Zan,1982Rice yellow mottle virus disease in Badeggi, Nigeria.]]>312324Sere, Y., A. Onasanya, F.E. Nwilene, M.E. Abo and K. Akator,200844147Singh, V., S. Isobe, H. Okadome and K. Ohtsubo,20072103114Singh, V., S. Isobe, H. Toyoshima, H. Okadome and K. Ohtsubo,20072175187Thresh, M.,199140324339Zhu, X. and O. Kuljaca,20052116