Fig. 3.
Shoot biomass of the AVLs, Vigour 18 and EGA-Burke. (A) Shoot biomass after 26 d growth in soil amended with P at a low or high rate. Data from the high- and low-P treatments were analysed separately. The least significant difference (P<0.05) for the low-P treatment was 0.063 and for high P was 0.088 (n=4). AVLs labelled with ‘a’ in the low-P treatment and ‘b’ in the high P treatment had a significantly greater biomass than Vigour 18 and EGA-Burke. (b) PAE, defined as the ratio of shoot biomass at low-P and high-P treatments. AVLs labelled with ‘a’ had a significantly greater PAE than Vigour 18 and EGA-Burke (P<0.05).