Skip to main content
. 2014 Sep 16;14:241. doi: 10.1186/s12870-014-0241-3

Table 2.

Correlation table ( r ) for all trait data in relation to harvest date, friction discolouration, total soluble solids and firmness

POP369 (2011) POP369 (2012) POP356 (2011)
Trait Harvest date FD TSS Firmness Harvest date FD TSS Firmness Harvest date FD TSS Firmness
Friction discolouration 0.36** 0.27** ns
Total soluble solids ns ns −0.34** 0.16* ns ns
Firmness ns ns 0.29** −0.14* −0.21** 0.16* ns ns ns
Polyphenol oxidase −0.36** ns ns ns 0.15* 0.20** 0.28** ns −0.25** ns ns ns
Ascorbic acid 0.31** ns ns ns ns ns ns −0.15* 0.54** ns ns ns
Chlorogenic acid −0.19* −0.27** 0.18* ns −0.31** ns 0.2** ns −0.18** −0.12* ns 0.27**
Cryptochlorogenic acid ns −0.27** ns ns −0.25** ns ns ns −0.2 ** ns ns 0.21**
Neochlorogenic acid ns ns ns ns −0.20** ns ns ns ns ns ns 0.22**
Catechin ns ns 0.21* 0.44** −0.19** −0.21** 0.15* 0.30** ns −0.20** ns 0.27**
Epicatechin ns ns ns 0.42** ns −0.15* 0.30** 0.40** ns −0.18** ns 0.15*
Procyanidin B2 ns −0.23** 0.19* 0.27** −0.18* ns 0.19** 0.22** ns −0.24** ns 0.21**
Isorhamnetin 3-galactoside −0.22* ns ns ns −0.21** −0.15* ns ns ns ns ns 0.19**
Isorhamnetin rutinoside −0.37** −0.25** ns ns −0.30 ** ns ns ns ns ns ns 0.23**
p-coumaryl quinic acid −0.21* −0.2* 0.27** 0.23** −0.23** ns 0.20** ns ns ns ns ns
Quercetin galactoside −0.17* ns ns ns −0.18** −0.15* ns 0.23** −0.13* ns ns ns
Quercetin glucoside −0.25** ns ns ns −0.32** −0.20** 0.19** 0.25** −0.20** ns ns ns
Quercetin arabinoside −0.22** −0.21* ns ns −0.24** ns ns ns ns ns ns 0.16**
Quercetin rhamnoside −0.25** −0.19* ns ns ns ns ns ns ns ns ns ns
Quercetin rutinoside −0.28** ns ns ns −0.27** −0.19** ns 0.16* −0.20** ns ns ns
Quercetin 0.34** 0.22** ns ns ns −0.17* ns ns 0.16** ns ns 0.37**
comp_417.12 (1) −0.20* −0.21* ns ns −0.24** ns ns ns ns ns ns 0.17**
comp_417.12 (2) ns −0.22** ns ns −0.24** ns ns ns ns ns ns 0.15*

Data from POP369 were collected in two successive years (2011 and 2012) while POP356 was analysed in 2011 only. N.B.: comp_417.12 (1) and comp_417.12 (2) are unknown compounds identified from LC-MS quantification analysis, represented by their molecular weight. Units for trait studied are following: FD (scale), TSS (°Brix), Firmness (N: newton), PPO (change in A420/ g/minute), AsA and polyphenols compounds (concentration). comp_417.12 (1) and comp_417.12 (2) are unknown polyphenol compounds identified from LC-MS quantification analysis, represented by their molecular weight.

Note: * = P < 0.05 ** = P < 0.01 and ns = non-significant.