Effects of Gamma Rays and Sodium Azide on Yeild Parameters of Phaseolus Vulgaris L

Abstract

The studies of induced mutation in Bokkos red variety of Phaseolus vulgaris L was conducted at botanical garden, Department of Biological Sciences, Ahmadu Bello University, Zaria. The healthy and dry seeds of P. vulgaris were exposed to gamma rays at different doses of (10krad, 15krad, 20krad, 25krad and 30krad) and the sodium azide at different concentrations (0.10mM, 0.15mM, 0.20mM, 0.25mM and 0.30mM) and combined treatments. The observation were made for number of flower bud, days to flowering, plant height at maturity, pod length, number of pods per plant and number of seeds per pod. The result revealed that 10krad and 25krad had the highest number of flower bud, 0.30mM+30krad had the early days to first flowering, 0.10mM had the highest pod length, 0.30mM+25krad had the highest plant height at maturity, 25krad had the highest number of pods per plant, 0.20mM had the highest number of seeds per pod and the flower with yellow, white and purple was obtained in this studies. Data obtained in this study were statistically significant at 5% level. The results concluded that different treatments of mutagens had different effects on yield parameters of P. vulgaris.