Full TGIF Record # 209058
Item 1 of 1
DOI:10.1094/FG-2012-0725-01-RS
Web URL(s):https://dl.sciencesocieties.org/publications/fg/articles/10/1/2012-0725-01-RS
    Last checked: 03/21/2014
    Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/fg/pdfs/10/1/2012-0725-01-RS
    Last checked: 03/21/2014
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Read, John J.; Pratt, Robert G.
Author Affiliation:USDA-ARS, Genetics and Precision Agriculture Research Unit, Mississippi State, MS
Title:Potassium influences forage bermudagrass yield and fungal leaf disease severity in Mississippi
Source:Forage and Grazinglands. July 25 2012, p. [1-11].
# of Pages:11
Publishing Information:s.l.: Plant Management Network
Related Web URL:https://dl.sciencesocieties.org/publications/fg/abstracts/10/1/2012-0725-01-RS
    Last checked: 03/21/2014
    Notes: Abstract only
Keywords:TIC Keywords: Bipolaris; Curvularia; Cynodon dactylon; Disease development; Disease evaluation; Disease profile; Disease severity; Disease surveys; Disease susceptibility; Exserohilum; Nutrient deficiency; Nutrient management; Potassium; Regional variation; Symptoms; Yield
Abstract/Contents:"Fungal diseases in bermudagrass [Cynodon dactylon (L.) Pers.] and numerous other crops have been associated with K deficiency. This study evaluated how levels of K in potash fertilizer (0-0-60) and broiler litter influenced forage yields and severity of disease symptoms caused by a natural complex of fungal pathogens in Tifton 44 bermudagrass in Mississippi. The relative incidence at different K levels of six species of Bipolaris, Curvularia, and Exserohilum in the complex was also investigated. Disease symptoms were universal and strong in all plots in 2010, but weak and transient in 2011. Forage dry matter (DM) yields increased linearly and significantly (P < 0.05) as K-fertilizer rate increased from 0 to 167 kg K/ha. Disease severity in whole plots decreased as K levels increased in 2010, and severity of symptoms on individual leaves in 2011 was lower at 167 kg K/ha than 0 kg K/ha. The incidence of individual fungal pathogens on symptomatic leaves in 2010 ranged from 3 to 100% (E. rostratum and B. hawaiiensis were universal pathogens) and levels observed for four variable, non-universal pathogens did not differ between K-fertilizer rates. These results indicated that the reduced disease severity observed at the highest K levels was not caused by changes in the incidence of four fungal pathogens within the disease complex."
Language:English
References:20
Note:Tables
Graphs
Geographic Terms:Mississippi
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Read, J. J., and R. G. Pratt. 2012. Potassium influences forage bermudagrass yield and fungal leaf disease severity in Mississippi. Forage Grazinglands. p. [1-11].
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=209058
If there are problems with this record, send us feedback about record 209058.
Choices for finding the above item:
DOI: 10.1094/FG-2012-0725-01-RS
Web URL(s):
https://dl.sciencesocieties.org/publications/fg/articles/10/1/2012-0725-01-RS
    Last checked: 03/21/2014
    Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/fg/pdfs/10/1/2012-0725-01-RS
    Last checked: 03/21/2014
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
Find from within TIC:
   Digitally in TIC by record number.
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)