R110 - AGRISPON GERMINATION STUDIES ... - Agrisciences.com

The only significant increase in the combined fescue analysis of Table 10 is the 10% Agrispon treatment, which
gave a 31% dry weight increase over the control. Other increases were also substantial, however, at 0.1%
Agrispon (+22%) and at 1% Agrispon (+21%). As for the perennial ryegrass, some of the varieties gave unusually
large increases in plant dry weight at certain Agrispon concentrations, such as Adobe Tall Fescue, which gave a
68% increase at 0.1% Agrispon, a 139% increase at 1% Agrispon, and a 134% increase at 10% Agrispon. These
increases for all of the fescue are depicted in Figure 5.
Dry plant mass, g
7
6
5
4
3
2
1
0
4.58
5.05
5.60 5.55
5.99
0 0.01 0.1 1 10
Agrispon application, %
Figure 5. Mean dry root and leaf adjusted weights of Agrispon treatments for
all fescue varieties.
Table 11. ANOVA of Southshore Creeping Bentgrass; adjusted weights.
Source SS df MF F P
Blocks 126.05 3 42.018 6.058 0.009 **
Agrispon 52.51 4 13.127 1.892 0.177 *
Error 83.24 12 6.936
Total 261.80 19
* Significant at P = 0.18; ** significant at P = 0.01.
Rank Treatment Means, g 1 Increase, g
1 4 16.90a 4.42 (+35%)
2 2 15.63ab 3.15 (+25%)
3 3 15.58ab 3.10 (+25%)
4 5 13.38ab 0.90 (+7%)
5 1 12.48b --
1 Means followed by the same letter are not significantly different
at P = 0.05 according to Duncan's Multiple Range Test.
As shown in Table 11, only one significant difference appears: an increase of 35% over the control with the 1%
Agrispon treatment. However, both 0.1% and 0.01% Agrispon treatments gave 25% yield increases for Southshore
Creeping Bentgrass even though these increases were not significant. High variability in the values due to severe
fungal attack led to considerable experimental error, but not enough to affect sizable dry matter increases for
Agrispon treatments. Note Figure 6 for a graphical presentation of this data.
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