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Table 1 Trait responses. Responses are percent differences in heat treated plants relative to control plants, for the two parents and the means of the doubled haploids (DH)

From: A QTL on the short arm of wheat (Triticum aestivum L.) chromosome 3B affects the stability of grain weight in plants exposed to a brief heat shock early in grain filling

 

Experiment 1

Experiment 2

Trait

Drysdale

Waagan

DH

Drysdale

Waagan

DH

DTA

0.54

0.77

0.07

0.15

−2.13

0.04

DTM

−2.84**

−1.93*

−4.36***

−3.71***

−3.53***

−3.08***

GFD

−5.98***

−5.85***

−8.66***

−8.31***

−6.17***

−7.3***

FLSe

−8.08***

−2.39

−12.52***

−6.4**

2.88

−3.88***

GWS

0.58

1.94

−4.58**

−11.08***

−10.65***

−10.93***

GNS

2.69

−0.58

−0.46

−2.8

−2.02

0.61

SGW

−2.07

2.49

−4.07***

−8.21***

−8.79***

−11.12***

ShW

2.03

4.14

−2.88*

−2.34

−7.17*

−1.55

PH

1.77

−0.01

−0.06

0.08

0.07

0.48

ChlC10DAA

0.41

−0.38

0.13

−0.47

0.6

−0.31

ChlC13DAA

−5.88***

−1.21

−4.25***

−4.37***

1.23

−3.97***

ChlC27DAA

−4.88***

1.09

−5.11***

−3.33*

3.89

−7.67***

AUSC

−4.91***

−0.19

−3.48***

−3.6**

3.71

−5.01***

ChlR13

−1.04***

−0.14

−0.7***

−0.63***

0.11

−0.58***

ChlR27

−0.1***

0.06

−0.05***

−0.03

0.18

−0.15***

FL

2.27

−0.29

0

0.82

3.72

0.41

FW

1.28

−0.65

−0.65

1.64

−1.59

0

HI

−0.57

−0.75

−0.9

−3.85***

−1.9**

−4***

  1. *, **, and *** indicate significant difference between control and heat-treated plants at p < 0.05, p < 0.01, and p < 0.001, respectively
  2. DTA days from sowing to anthesis, DTM days from sowing to maturity defined as 95 % spike senescence, GFD grain-filling duration defined as days from anthesis to 95 % spike senescence, FLSe days from anthesis to 95 % flag leaf senescence, GWS grain weight spike−1, GNS grain number spike−1, SGW single grain weight, ShW shoot dry weight, PH plant height, ChlC10DAA chlorophyll content 10 days after anthesis, i.e., just before heat treatment period, ChlC13DAA chlorophyll content 13 days after anthesis, i.e., just after heat treatment period, AUSC area under the SPAD curve made from measurements at 10, 13 and 27 days after anthesis, i.e., incorporates the period during-heat treatment and 2-weeks after, ChlR13 rate of chlorophyll change between 10 and 13 days after anthesis, i.e., during the heat treatment period, ChlR27 rate of chlorophyll change based on the linear regression of the measurements, at 10, 13 and 27 days after anthesis, FL flag leaf length, FW flag leaf width, HI harvest index
  3. Traits are partitioned in the table based on their relationships to duration of development phases, yield components and biomass, chlorophyll content and stability, flag leaf dimensions and harvest index, respectively