Table 3 Combined analysis of variance for grain yield under normal (Yp) and stress (Ys) conditions and heat tolerance indices of wheat genotypes.

From: Heat stress tolerance indices for identification of the heat tolerant wheat genotypes

Source of variation

DF

Mean square

TOL

STI

SSPI

YI

YSI

RSI

MP

GMP

HM

MRP

PYR

Ys

Yp

Replication

1

1576.1

0.003

5.19

0.006

0.0016

0.028

726.3

1085.3

1484.3

0.007

15.93

2190.2

50.4

Genotype

49

13,185.6***

0.03***

43.45***

0.02***

0.01***

0.09***

8483.6***

8007.9***

7722.3***

0.06***

114.48***

6854.2***

16,705.8***

Residuals

49

4300.9

0.005

14.17

0.004

0.003

0.03

1514.6

1371.6

1308.5

0.011

33.99

1512.5

3667.2

  1. STI stress tolerance index, MRP mean relative performance, HM harmonic mean, GMP geometric mean, MP mean productivity, Ys grain yield of genotypes under heat stress condition, YI yield index, Yp grain yield of genotypes under normal condition, YSI yield stability index, PYR percent yield reduction, RSI relative stress index, TOL tolerance index, SSPI stress susce.
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