Table 1.

Multivariate effects on rice root functional parameters for water uptake; bleeding rate (field Exps 1a and 1b), root hydraulic conductivity (greenhouse Exps 2a and 2b), and aquaporin expression (greenhouse Exp 2c)

All aquaporin types were analysed together from Exp 2c. Only significant interactions among factors are shown here.

Bleeding rate		Root hydraulic conductivity		Aquaporin expression
Factor	P-value	Factor	P-value	Factor	P-value
Field season	<0.001***	Experiment	<0.001***	Tissue	<0.001***
Treatment	<0.001***	Genotype	0.698	Time of day	<0.001***
Genotype	<0.001***	Treatment	<0.001***	Treatment	<0.001***
Date	<0.001***	Time of day	0.012*	Genotype	0.014*
Field season×treatment	<0.001***	Soil moisture	0.906	Tissue×time	<0.001***
Field season×genotype	<0.001***	Treatment×soil moisture	0.037*	Tissue×treatment	<0.001***
Treatment×genotype	0.085			Time ×treatment	<0.001***
Treatment×date	<0.001***	From stress treatments		Tissue×genotype	0.011*
Genotype×date	<0.001***	Soil moisture	0.025*
Field season×treatment×genotype	<0.001***	Genotype×soil moisture	0.057
From stress treatments
Soil water potential	<0.001***
Genotype×soil water potential	0.043*
Time of day	<0.001***
Treatment×time of day	0.001**