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. 2020 May 12;10:7854. doi: 10.1038/s41598-020-63925-5

Table 2.

ANOVA of effect of treatments (T), water gradients (W), year (Y) and stage (S) on dry biomass, root/shoot ratio and photosynthesis parameters in 2014 and 2015.

Factor DF DM-AG DM-UG R/S SPAD Pn Tr Gs Ci
T 2 *** *** NS *** *** *** *** ***
W 2 *** *** *** *** *** *** *** ***
W*T 4 NS *** NS NS NS ** ** NS
Y 1 *** *** *** NS * *** NS ***
Y*T 2 NS NS NS NS * * NS NS
Y*W 2 NS NS NS NS NS ** NS NS
Y*W*T 4 NS NS NS NS NS NS NS NS
S 2 *** *** *** *** *** *** *** ***
S*T 4 *** *** *** NS NS *** *** *
W*S 4 *** *** *** NS *** *** *** **
W*S*T 8 NS *** NS NS NS NS NS NS
Y*S 2 *** *** *** * ** *** ** ***
Y*S*T 4 NS NS * NS NS NS NS NS
Y*W*S 4 *** *** NS NS NS *** * NS
Y*W*S*T 8 NS NS NS NS NS NS NS NS

Significance: *P < 0.05; **P < 0.01; ***P < 0.001; NS, not significant (P > 0.05). DF, degrees of freedom; DB-AG, dry biomass above ground; DB-UG, dry biomass underground; R/S, crop root/shoot ratio; SPAD, leaf soil plant analysis development value; Pn, net photosynthesis rate; Gs, stomatal conductance; Ci, intercellular CO2 concentration; Tr, transpiration rate.