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Table 2 from:


Milus, E. A., Cartwright, R. D., Rothrock, C. S., Anders, M., and Slaton N. 2009. Impact of cropping sequences and alternative hosts on take-all management of winter wheat in Arkansas. Online. Plant Health Progress doi:10.1094/PHP-2009-0512-02-RS.



Table 2. Weight of crown tissue recovered after 60 and 90 days, take-all severity caused by standardized amounts of the crown tissue when used as inoculum in bioassays, and inoculum potential after being buried in soil under different cropping systems at Stuttgart, AR, in early June 2000 and 2001.

Treat-
ment
2000 2001
60 days 90 days 60 days 90 days
Crown
weight

(g)u
Take-
all
severity

(0-4)v
Inoc.
poten
.w
Crown
weight

(g)
Take-
all
severity

(0-4)
Inoc.
poten
.
Crown
weight

(g)
Take-
all
severity

(0-4)
Crown
weight

(g)
Take-
all
severity

(0-4)
Inoc.
poten
.
Controlx 12.6 ay 4.00 a 58.40 a   10.0 a   3.94 a 42.89 a 23.4 b  -z 23.4 a 0.13 a 2.22 a
Corn 8.9 a 3.24 b 25.93 b     7.8 ab 2.22 b 11.19 b 22.4 b - 18.3 a 0.40 a 9.78 a
Soybean 5.2 a 1.22 c  4.63 c    5.1 b   2.58 b 10.79 b 18.5 c - 18.8 a 0.17 a 1.65 a
Rice 10.7 a    0.02 d  0.04 d   11.5 a   0.02 c  0.06 c 29.3 a - 24.4 a 0.08 a 1.90 a
Tilled fallow 9.4 a 0.04 d  0.36 d    4.8 b 0.07 c  0.27 c 16.6 c - 13.5 a 0.16 a 0.47 a
No-till fallow 8.3 a 0.09 d  0.67 d    3.6 b 0.12 c  0.27 c 17.4 c - 15.4 a 0.15 a 2.28 a

 u Crown weight = weight of crowns recovered from sample holders that initially held 30 g of crown tissue.

 v Take-all severity = weighted average take-all severity on roots of 100 seedlings in the bioassay.

 w Inoc. poten. = Inoculum potential calculated as recovered crown weight weighted average take-all severity.

 x Buried in a covered tub of field soil and incubated in an air-conditioned room at approximately 18C.

 y Values within a column followed by the same letter(s) are not significantly different by a LSD test at P = 0.05.

 z Ratings of take-all severity were near 0 for all treatments.




2009 Plant Management Network.