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Table 1 Chlorophyll fluorescence parameters measured in the two grapevine varieties, Touriga Nacional (TN) and Trincadeira (TR)

From: Transcriptomic comparison between two Vitis vinifera L. varieties (Trincadeira and Touriga Nacional) in abiotic stress conditions

 

Fv/Fm

F’v/F’m

TN

TR

a

b

c

TN

TR

a

b

c

Control

0.78

0.79

-

-

a

0.65

0.67

-

-

 

0.01

0.01

0.02

0.03

 

W

0.62

0.69

   

0.59

0.61

a

  

0.16

0.09

  

0.02

0.03

  

L

0.62

0.56

a

  

0.49

0.56

a

  

0.12

0.16

  

0.09

0.12

  

H

0.53

0.52

a

  

0.52

0.47

 

a

 

0.14

0.16

  

0.10

0.14

  

WL

0.45

0.62

a

  

0.38

0.51

a

a

 

0.15

0.11

  

0.14

0.07

 

WH

0.52

0.55

a

a

 

0.50

0.48

 

a

 

0.15

0.13

 

0.11

0.11

  

LH

0.57

0.62

a

a

 

0.51

0.63

a

 

a

0.13

0.12

 

0.08

0.02

 

WLH

0.57

0.59

a

a

 

0.48

0.48

a

a

 

0.13

0.12

 

0.08

0.08

 
  1. Plants were subjected to individual (water, W; light, L; heat, H) and combined stresses (WL; WH; LH; WLH) as indicated in Material and Methods. F v /F m represents the maximum efficiency of PSII photochemistry in darkadapted leaves and F’ v /F’ m corresponds to the maximum quantum efficiency of PSII in light-adapted leaves. Values are accompanied by the respective standard errors. Statistically significant differences after Tukey’s multiple comparison tests for p < 0.05 are the following: a in column a: significant difference between TN and the respective control; a in column b: significant difference between TR and the respective control; a in column c: significant difference between TN and TR within a stress treatment
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BMC Plant Biology

ISSN: 1471-2229

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