. 2020 Sep 2;11:558855. doi: 10.3389/fpls.2020.558855

Table 2.

Weather variables (mean values ± standard deviation; n = 30) of the study locations across different years and sowing dates.

Weather parameters	Location	2013		2014
Weather parameters	Location	ES	CS	ES	CS
Cumulated rainfall (mm) 30 das	En Crambade	88^c ± 3	101^a ± 4	64 ± 3	34^a ± 2
	Mondonville	66^a ± 2	125^c ± 5	NT	46^b ± 2
	Rivières	81^b ± 3	112^b ± 4	48 ± 2	77^c ± 4
Overall significance level
Location	NS
Sowing date	NS
Year	**
Location x sowing date	NS
Location x year	NS
Sowing date x year	NS
Location x sowing date x year	NS
Weather variables	Location	2013		2014
Weather variables	Location	ES	CS	ES	CS
Temperature (°C) 30 days at the average sowing depth	En Crambade	11^a ± 3	16^b ± 2	13 ± 2	17^b ± 1
	Mondonville	12^a ± 3	16^b ± 2	NT	15^a ± 2
	Rivières	12^a ± 3	13^a ± 2	12 ± 2	15a ± 2
Overall significance level
Location	**
Sowing date	***
Year	***
Location x sowing date	***
Location x year	**
Sowing date x year	NS
Location x sowing date x year	NS

Means followed by the same letter are not significantly different at p < 0.05; ***p < 0.001; **p < 0.01.

ES, early sowing; CS, conventional sowing; NT, not tested; NS, not significant; das, days after sowing.