Phenology, sterility and inheritance of two environment genic male sterile (EGMS) lines for hybrid rice

Rice

Table 5 EGMS models calibrated from the 2013 sowing dates

Model	Equation¹	AIC²
1	−84.272* + 6.737* x DAYL ₋₆(PIFL)	43
2	−6.083 + 0.400* x T _min(PIFL)	73
3	−14.571* + 0.606* x T _avg(PIFL)	76
4	−3.545 + 0.158 x T _max(PIFL)	106
5	1.940*** + 0.215xEGMS	108
6	−95.586* + 7.120* x DAYL ₋₆(PIFL) + 0.330* x T _min(PIFL)	25
7	−100.627* + 7.075* x DAYL ₋₆(PIFL) + 0.446* x T _avg(PIFL)	27
8	−108.282* + 7.291* x DAYL ₋₆(PIFL) + 0.495 x T _max(PIFL)	36
9	−84.328* + 6.730* x DAYL ₋₆(PIFL) + 0.092 x EGMS	46
10	316.130 - 25.809 x DAYL ₋₆(PIFL) - 22.142 x T _min(PIFL) + 1.799 x DAYL ₋₆(PIFL) x T _min(PIFL)	24
11	760.139 - 61.840 x DAYL ₋₆(PIFL) - 31.919 x T _avg(PIFL) + 2.592 x DAYL ₋₆(PIFL) x T _avg(PIFL)	24
12	430.004 - 35.931 x DAYL ₋₆(PIFL) - 15.359 x T _max(PIFL) + 1.273 x DAYL ₋₆(PIFL) x T _max(PIFL)	36
13	−64.587 + 5.160 x DAYL ₋₆(PIFL) - 13.867 x EGMS + 1.111 x DAYL ₋₆(PIFL) x EGMS	47
14	−95.704* + 7.112* x DAYL ₋₆(PIFL) + 0.330* x T _min(PIFL) + 0.142 x EGMS	27
15	−7.163* + 0.035* x DAYL ₋₆(PIFL) x T _min(PIFL)	61

DAYL ₋₆(PIFL) is the average of daylengths from panicle initiation to flowering, calculated with civil twilight (sun up to 6° below the horizon). T _min(PIFL) is the average of daily minimum temperatures T _min from panicle initiation to flowering. EGMS is a binary: 0 for EGMS1, 1 for EGMS2
¹Significance codes: * p < 0.05, ** p < 0.01, *** p < 0.001
²Akaike Information Criterion (lower is better)