Table 1 Effect of root promoter application on tobacco root trait.

From: Effect of root promoter on tobacco (Nicotiana tabacum L.) growth and nutrient accumulation at Hunan Province, China

Sampling time

(after transplant)

Treatment

Length (cm)

Surface area

(cm2)

Mean diameter (mm)

Volume

(cm3)

Root tip

30d

PH

541.23 ± 30.59ab

138.83 ± 9.50b

0.83 ± 0.05a

2.87 ± 0.50b

2032 ± 453b

HIEC

574.36 ± 44.68a

180.56 ± 50.16a

0.87 ± 0.09a

3.91 ± 0.86a

2416 ± 422a

CS

456.07 ± 12.27b

111.58 ± 16.00c

0.81 ± 0.16a

2.26 ± 0.42c

2080 ± 234b

CG

317.48 ± 34.97c

97.16 ± 11.13c

0.87 ± 0.13a

2.22 ± 1.05c

1743 ± 227c

60d

PH

4674.00 ± 57.83a

2715.63 ± 82.05b

1.52 ± 0.29b

114.47 ± 6.55b

10,992 ± 141a

HIEC

3603.92 ± 92.63b

3056.04 ± 72.21a

1.58 ± 0.17a

137.84 ± 7.60a

10,042 ± 386a

CS

3589.06 ± 64.52b

2277.62 ± 51.02c

1.58 ± 0.03a

116.60 ± 6.40b

9496 ± 612b

CG

3133.71 ± 41.77c

2191.13 ± 66.11c

1.51 ± 0.01b

103.81 ± 4.11c

7376 ± 902c

  1. Data are presented as mean ± standard deviation (n = 3). Different lowercase letters within the same column indicate significant differences among treatments at p < 0.05 according to Duncan’s multiple range test. Abbreviations: PH, Potassium Humate; HIEC, Hymexazol and Isorothiolane Emulsifiable Concentrate; CS, Chitosan; CG, Control Group.
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