Fig 1.
Relationship between total dry weight (g biomass) and sum of transpiration (g water).
a. with 260 germplasm genotypes in Exp 1 under well-watered conditions, b. with 70 genotypes in Exp 2 under well-watered conditions and c. with 70 genotypes in Exp 2 under water-stressed conditions, d. 43 hybrids in Exp 3 and with e. 234 inbred lines in Exp 3. Data are the mean of five replicated (a,c,d,e) or two replicated lysimeter-grown plants per genotype (b).
Fig 2.
Transpiration Efficiency (TE, in g. kg-1) in different hybrid groups.
TE was measured under well-watered conditions for hybrid groups bred for three different target zones: A1 is the driest zone with less than 400mm of annual rainfall (14 hybrids), A is the intermediate annual rainfall zone (13 hybrids), B is the most humid zone, with an annual rainfall above 400 mm (13 hybrids). Data are the mean of five replicated lysimeter-grown plants per genotype.
Table 1.
One way ANOVA for the main traits in each experiment.
Fig 3.
Environmental conditions (temperature, relative humidity and rain) during the different trials.
(a) Minimum and maximum temperature (°C), (b) Relative humidity (%) and rain (mm) measured by the local weather station in Patancheru, India, during the trial period of the three experiments (Exp 1 2012, Exp 2 2013, and Exp 3 2015). The trial period is defined in days after sowing. The sowing date were 16 February 2012, 14 February 2013, and 18 February 2015.
Fig 4.
TE relationships across years and water treatments.
Relationship between transpiration efficiency (g.. kg-1) a) in Exp 1 and Exp 2 under well-watered conditions on 70 common genotypes, and b) in Exp 2 under well-watered (WS) and watered-stressed conditions (WW). Data are the means of five replicated (in Exp 1 and Exp 2 WS) or two replicated lysimeter-grown plants per genotype (Exp 2 WW).
Table 2.
Two-way ANOVA summary table for Experiments 1 and 2.
Table 3.
Regression analysis between grain yield and components of Passioura equation.