Skip to main content
. 2020 Aug 7;11:1213. doi: 10.3389/fpls.2020.01213

Table 3.

The effect of rootstock and crop load interaction on the accumulation of phytohormones in “Ligol” buds (ng g−1, FW).

Treatment Promoters Inhibitors
Zeatin JA IAA ABA GA7 GA3 GA1
M.26 (75) 9.04 c* 278.2 de 126.1 cde 8.59 d 108.7 e 18.8 e 12.8 e
M.26 (113) 10.94 b 353.1 b 198.1 b 11.02 b 148.1 c 30.2 b 17.2 c
M.26 (150) 12.83 a 428.0 a 270.1 a 13.45 a 187.4 a 41.5 a 21.6 ab
M.9 (75) 3.83 h 157.3 i 54.3 i 3.38 jkl 67.9 i 8.99 h 8.59 h
M.9 (113) 8.20 cd 336.2 b 105.5 fg 5.01 hi 129.2 d 26.9 c 13.9 de
M.9 (150) 6.64 ef 246.6 fg 84.3 h 2.82 l 77.2 h 10.2 gh 9.74 gh
B.396 (75) 6.56 ef 330.7 bc 104.9 fg 8.01 de 94.2 f 18.8 e 15.8 cd
B.396 (113) 5.51 fg 261.5 ef 110.8 efg 7.12 ef 112.3 e 21.6 d 16.6 c
B.396 (150) 8.77 c 351.8 b 135.8 cd 9.78 c 164.4 b 19.1 e 22.5 a
P 67 (75) 5.08 g 179.2 i 48.4 ij 5.49 gh 86.0 g 15.1 f 11.9 efg
P 67 (113) 3.72 h 161.8 i 35.8 j 3.20 kl 36.0 j 4.96 i 8.95 h
P 67 (150) 7.04 e 302.6 cd 119.9 def 3.50 jkl 85.2 gh 18.4 e 10.4 fgh
P 22 (75) 7.38 de 330.6 bc 137.8 c 6.22 fg 89.1 fg 26.2 c 19.5 b
P 22 (113) 7.20 de 222.7 gh 113.9 efg 4.34 ij 88.3 fg 11.2 gh 12.4 ef
P 22 (150) 7.19 de 212.4 h 101.5 g 4.17 ijk 88.3 fg 11.6 g 11.8 efg
Effect of rootstock
M.26 10.94 a 353.1 a 198.1 a 11.02 a 148.1 a 30.2 a 17.2 b
M.9 6.22 c 246.7 c 81.4 c 3.74 d 91.4 c 15.4 c 10.7 d
B.396 6.95 b 314.7 b 117.2 b 8.30 b 123.7 b 19.8 b 18.3 a
P 67 5.28 d 214.5 d 68.0 d 4.06 d 69.1 d 12.8 d 10.4 d
P 22 7.26 b 255.2 c 117.7 b 4.91 c 88.6 c 16.3 c 14.6 c
Effect of crop load
75 6.38 c 255.2 c 94.3 c 6.34 a 89.2 c 17.6 c 13.7 b
113 7.11 b 267.0 b 112.8 b 6.14 a 102.8 b 19.1 b 13.8 b
150 8.49 a 308.3 a 142.3 a 6.74 a 120.5 a 20.1 a 15.2 a

*The different letters on the same column indicate significant differences between treatments, rootstock and crop load separately. The analysis was conducted with all data resulting from 9 trees of “Ligol” apple tree grafted on M.26, M.9, B.396, P 67, and P 22, with crop-load adjusted to 75, 113, and 150 fruits per tree. The data were processed using analysis of variance (ANOVA), the Turkey (HSD) multiple range test at the confidence level p = 0.05.

JA, jasmonic acid; IAA, indolyl-3 acetic acid; ABA, abscisic acid; GA7, GA3, GA1, gibberellins.