FIGURE 6.
The air temperature, relative humidity, and illumination intensity determined in the canopy which the superior and inferior spikelets located, respectively. The arrows showed in blue represent the canopy the superior spikelets (SS) located, and the arrows showed in red represent the canopy the inferior spikelets (IS) located. (A,C,E,G) V20, (B,D,F,H) Zhong9. (A,B) were determined under natural condition, while (C–H) were determined under heat stress. SP, FP, and TP present each rice plant possessing six panicles, four panicles, and two panicles, respectively.