Skip to main content

Table 2 The temperature and light conditions for the ΣT∆ for each day

From: Characteristics of Fertility Transition Response to the Cumulative Effective Low Temperature in a Two-Line Male Sterile Rice Cultivar

Temperature conditions

Light conditions

Treatment time (h)

Temperature (°C)

Time range

Light intensity (Lx)

6: (05:00–11:00)

25.0 °C

06:30–08:00

5000

t1: 11:00-(11:00 + t1)

26.0 °C

08:00–18:00

20,000

t2: (11:00+ t1)-05:00

Tc-TΔ

18:00–20:00

5000

20:00–06:00

0

  1. Tc is the value of the CSIT, the Tc for H93S is 23.0 °C and for PA64S is 24.0 °C; TΔ is the value of the ELT (i.e., the difference between actual treatment temperature T and Tc), the TΔ is set at two levels: TΔ1 = 2.5 °C and TΔ2 = 2.0 °C; t1 and t2 are the times at which temperatures above and below the CSIT, respectively, and t2 values of 7 h, 9 h, 11 h, 13 h, 15 h and 17 h correspond to t1 values 11 h, 9 h, 7 h, 5 h, 3 h and 1 h, respectively, for a total of 18 h (t1 + t2 + 6 = 24 h); The photoperiod settings (simulating sunlight) and temperature settings were not synchronized and were mutually exclusive. Supplementary Table S1 and S2 show the detailed settings