Table 3. Visual estimates of green color (%) on 9 June and 11 August 1994 at three
locations.
5th Armored
5th Armored
Treatments
Div. Drive I
Div. Drive II
Memorial Drive
9 June
11 June
9 June
11 June
9 June
11 June
1. Mefluidide, 2.3 L/ha
75.0
98.3
91.7
96.0
--
100.0
2. Mefluidide, 0.67 L/ha
99.3
96.3
99.3
92.0
--
92.0
3. Imidazolinone, 438 mL/ha
71.7
96.7
81.7
88.7
--
92.0
4. Imidazolinone, 136 mL/ha
93.0
93.3
99.3
87.3
--
88.0
5. Treatment 2 + 4
78.3
95.7
91.7
96.3
--
91.7
6. Mowed check
75.0
95.0
81.7
97.3
--
95.3
7. Unmowed check
99.3
86.7
58.3
85.0
--
88.3
Least significant
difference at 0.05 level
of probability
12.0
4.1
18.8
4.6
--
22.8
Table 4. Plant heights (cm) as influenced by various treatments in 1995.
Treatments
17 May
30 May
14 June
27 June
11 July
25 July
1. Mefluidide, 2.3 L/ha
8.8
7.8
14.0
13.9
13.1
14.0
2. Mefluidide, 0.67 L/ha
9.5
10.2
17.6
18.9
21.5
25.1
3. Imidazolinone, 438 mL/ha 9.4
9.9
19.3
25.7
29.7
28.8
4. Imidazolinone, 136 mL/ha 8.7
10.4
21.0
27.1
29.7
34.1
5. Treatment 2 + 4
9.0
9.4
17.7
17.1
16.8
19.5
6. Mowed check
11.3
9.1
12.7
12.2
12.1
14.9
7. Unmowed check
11.5
13.1
25.4
27.7
32.6
32.4
Least significant
difference at 0.05 level
of probability
1.2
1.4
1.4
6.1
7.2
2.7
Table 5. Plant heights (cm) as influenced by various experimental locations in 1995.
Location
17 May
30 May
14 June
27 June
11 July
25 July
5th Armored Div. Drive I
Single*
10.1
8.9
19.2
23.5
30.0
31.7
Reapply†
5th Armored Div. Drive I
9.5
8.2
16.5
20.1
24.4
27.0
5th Armored Div. Drive II
Single
11.0
11.7
21.4
22.2
23.4
26.8
5th Armored Div. Drive II
Reapply
11.8
12.5
23.2
26.3
26.1
28.4
Hospital Lane Single
8.3
8.3
13.6
13.8
12.8
12.3
Hospital Lane reapply
7.9
10.4
15.6
16.3
16.4
18.5
LSD at 5%
1.2
1.2
1.9
3.8
5.5
6.4
* Single = PGR applied in 1995 only
† Reapply = PGR applied in 1994 and 1995
ences in seedhead counts were noted for the type
No differences in plant heights were observed
of PGR used and the location of the test, but no
between the initial and the reapplication treat-
differences were found between the three rating
ments at the two 5th Armored Division Drive
dates. Table 6 shows the number of seedheads
locations (Table 5). This indicates that the reappli-
on 27 June in plots where the PGR was initially
cation of the PGR was consistently as beneficial
applied in 1994 and then reapplied in 1995.
the second year.
Mefluidide at the recommended rate provided
Seedhead control is important since seedheads
the best control of seedhead development, with
give the appearance that the turf requires mow-
none of the treatments producing more than 2
ing. Significant (probability less than 5%) differ-
4
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