Fig. 3. Effect of culture medium and variety on (A) callus weight, (B) plantlet regeneration, NPR/Cal, and (D) NPR/RCal of ImEs of durum wheat. Use of the same letter “a,” “b,” “c,” and/or “d” above the bar indicates that the results are not significantly different at α = 0.05 according to the LSD test. LSD: least significant difference according to the t-test; ME: mature embryo; NPR/Cal: number of plantlets regenerating per callus; NPR/RCal: number of plantlets regenerated per regenerating callus
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