Table 11: (a) Wheat characteristics identified as crucial in wheat grain yield with each one of the used statistical techniques under inoculation condition and different water levels. (b) Wheat characteristics identified as crucial in wheat grain yield with each one of the used statistical techniques under noninoculation condition and different water levels.
(a)

Variables RegStepFAPCPathClusterTotal score

X1x1
X2xxx3
X3xx2
X4xxxxxxx7
X5xxx3
X6xxx3
X7xx2
X8xxxx4
X9xx2
X10x1
X11xx2

X1: tiller numbers/plant, X2: spike length, X3: spikelets/spike, X4: spike weight/plant, X5: grains/spike, X6: grain weight/spike, X7: 100-grain weight, X8: total chlorophyll content of flag leaf, X9: biological yield/plant, X10: root weight, X11: leaves area and Y: grain yield.
: correlation analysis, Reg: multiple linear regression, Step: stepwise multiple regression, FA: factor analysis, PC: principal component analysis, path: path coefficient analysis, and cluster: cluster analysis.
(b)

Variables RegStepFAPCPathClusterTotal score

xx2
xx2
x1
xxxxxxx7
xxx3
xxxxx5
x1
xxxx4
xxx3
xxx3
xxxxx5

= Tiller numbers/plant, = Spike length, = Spikelets/spike, = Spike weight/plant, = Grains/spike, = Grain weight/spike, = 100 − Grain weight, = Total chlorophyll content of flag leaf, = Biological yield/plant, = Root weight, = Leaves area, Y = Grain yield.
= Correlation analysis, Reg = Multiple linear regression, Step = Stepwise multiple regression, FA = Factor analysis, PC = Principal component analysis, Path = Path coefficient analysis, and Cluster = Cluster analysis.