Gunasekhar Nachimuthu, V. Velu, P. Malarvizhi, S. Ramasamy and K.M. Sellamuthu
American Journal of Plant Physiology 2 ( 3 ): 214 - 220 , 2007
Gunasekhar Nachimuthu, V. Velu, P. Malarvizhi, S. Ramasamy and L. Gurusamy
Journal of Agronomy 6 ( 2 ): 338 - 343 , 2007