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Table 1 Effect of citric acid (CA) and malic acid (MA) spray treatments on rooting of herbaceous cuttings in ‘Sherbet’ roses

From: Foliar application of citric and malic acid to stock plants of rose alters the rooting of stem cuttings

Treatment Rooting percentage (%) Root count Mean root length (mm) Longest root length (mm) Shoot length (mm) Shoot dry weight (g) Root dry weight (g) Root/shoot ratio (DW)
DW 94.6
(± 4.62)
b 4.6
(± .6)
b 25.2
(± 1.6)
b 39.2
(± 6.6)
c 54.9
(± 5.1)
bc .090
(± .016)
c .012
(± .002)
b .14
(± .01)
ab
CA 3 mM 97
(± 5.2)
ab 7.1
(± .4)
a 33.1
(± 3)
a 51.9
(± 7.5)
a 77
(± 5.5)
a .138
(± .022)
ab .018
(± .002)
ab .13
(± .03)
ab
CA 6 mM 100
(± 0)
a 7.7
(± .8)
a 34.5
(± 1.4)
a 51.1
(± 3)
a 79.8
(± 5.2)
a .148
(± .033)
a .017
(± .002)
ab .12
(± .02)
ab
CA 9 mM 100
(± 0)
a 6.5
(± .6)
ab 35.2
(± 4.6)
a 48.7
(± 3.2)
ab 73.7
(± 2.8)
a .124
(± .003)
abc .023
(± .007)
a .19
(± .06)
a
MA 3 mM 100
(0)
a 6.1
(± 1.9)
ab 29.7
(± 5.5)
ab 41.1
(± 7.5)
bc 63
(± 6.7)
ab .113
(± .014)
bc .017
(± .006)
ab .15
(± .07)
ab
MA 6 mM 100
(0)
a 6.7
(± 1.3)
ab 29.4
(± .5)
ab 47
(± .1)
bc 39.1
(± 3.7)
cd .151
(± .011)
a .015
(± .005)
ab .10
(± .03)
b
MA 9 mM 100
(0)
a 6.0
(± 1.6)
ab 34.3
(± 1.49)
a 49.3
(± 1.6)
ab 34
(± 23)
d .096
(± .012)
c .017
(± .003)
ab .18
(± .03)
ab
  1. Means with similar letters are not statistically different based on Duncan’s test (p < .05)
  2. The value in parentheses is the standard deviation