In Burkina Faso, M2 mutants and their three Okra (Abelmoschus esculentus (L.) Moench) control genotypes seeds irradiated with gamma rays, were grown and care taken in pots. Twenty-six quantitative traits were evaluated and all the M2 genotypes revealed some significant differences compared to the control. No stem branching and multiple fruits at a same node were recorded in M2 and control lines, as previously in M1. However, three interesting lines, L32, L33 and L55, were identified from UAE22, having reduced plant height and higher or same fruits traits than control. In KbG535, one M2 line, L48, showed an increased plant height associated with higher stem diameter, fruit length, weight and number of seeds. One more line, L61, had reduced height without difference from control for yield traits.
For KBG24, line L34 showed a reduction of first fruit node height and an increase in fruit weight and seed number per fruit; while line L43 had a high fruit length associated with decrease in first fruit node height. All these lines came from irradiation with doses ranged from 200 to 600Gy, confirming that this interval of doses was more suitable for mutation inducing in okra.

Okra, mutants, quantitative traits, M2, yield