Fig 7. The total evapotranspiration during the growing period (late March to September) of apple trees in 2013, 2014 and 2015.

Lowercase letters denote significant differences between PC and PGC for the inter-row or in-row (p ≤ 0.05). “*” indicates that the differences between the inter-row and in-row (connected by lines) of the PC or PGC treatment were significant (p ≤ 0.05). Error bars were the standard deviations.