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COLCHICINE-INDUCED VARIABILITY ON GROWTH AND YIELD RELATED TRAITS OF M2 GENERATION FONIO (DIGITARIA EXILIS [KIPPIST] STAPF) IN ZARIA, NIGERIA


NURA, S.1*, ADAMU, A.K.2, ADELANWA, M.A.2, USMAN, I.S.3 AND SHEHU, K.4

1School of Basic and Remedial Studies, Ahmadu Bello University, Funtua, Nigeria 2Department of Botany, 3Department of Plant Science, Ahmadu Bello University, Zaria, Nigeria 4Department of Biological Science, Police Academy, Kano, Nigeria

Abstract:

This research was conducted to evaluate the effect of various colchicine concentrations in induction of morphological variability that could be utilized in the genetic improvement of fonio (Digitaria exilis). Seeds of five accessions of fonio (Dinat, Jakah, Jiw 1, Jiw 2 and Nkpowas) were treated with five different colchicine concentrations (0.1 mM, 0.5 mM, 1.0 mM, 2.0 mM and 0.0 mM as control). The seeds were sown in a completely Randomized Block Design with three replications in a factorial arrangement to raise the first mutant generation (M1 generation). The M1 generation was advanced to second mutant generation (M2 generation). The result obtained for the M2 generation analysis showed highly significant differences (P≤0.01) in the effect of various colchicine concentrations on the growth and yield attributes of fonio. Accession Jiw 1 was found to respond more to colchicine treatments by yielding better results. There was an inverse relationship between colchicines concentrations and plants’ response which means there is decrease in response with increase in concentration. Germination percent and height were found to be the traits to be used in selecting the accession with high yield. We therefore concluded that, 0.1 mM colchicine concentration could be used in the genetic improvement of fonio growth and yield.

Key words: Colchicine, fonio, growth, yield

*Correspondence: salisunura40@yahoo.com

How to cite: Nura et al., (2017); Colchicine-induced variability on growth and yield; Nigerian Journal of Scientific Research, 16(4): 2017; July - August; njsr.abu.edu.ng

 

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