Table 1 Correlations (Spearman’s ρ) with daily root production (cm cm−2 day−1). End of season represents July 29 to August 12 in 2013 and August 5 to September 5 in 2014
Duration | NDVI | Soil water content | Soil temperature | Day length | Julian day |
|---|---|---|---|---|---|
Whole season | −0.37 *** | 0.26 ** | −0.067 (ns) | 0.30 *** | −0.11 * |
End of season | −0.13 (ns) | 0.16 (ns) | 0.0079 (ns) | −0.062 (ns) | 0.062 (ns) |