Impact of Auxins on Vegetative Propagation through Stem Cuttings of Couroupita guianensis Aubl.: A Conservation Approach

Table 2

The effect of auxins on rooting of C. guianensis stem cuttings.

Concentration of auxins (mg L^−1)			Rooting response (%)	Average number of roots per cutting (mean ± SE)	Average length of roots (mean ± SE)
IAA	IBA	NAA
50	—	—	42
100	—	—	49
200	—	—	54
300	—	—	69
400	—	—	79
500	—	—	72
—	50	—	64
—	100	—	67
—	200	—	76
—	300	—	81
—	400	—	77
—	500	—	60
—		50	73
—		100	86
—		200	91
—		300	93
—		400	98
—		500	91

Note: stem cuttings with at least one root were considered for calculating percentage of rooting; SE: standard error; level of significance . All values are an average of 10 replicates. The mean values represented in corresponding column followed by same alphabets are not significantly different. Here “a” represents/considered as the lowest value and “g” as highest value.