scholarly journals Evaluation of Glycine max and Glycine soja for Resistance to Calonectria ilicicola

Agronomy ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 887 ◽  
Author(s):  
Chang-Jie Jiang ◽  
Shoji Sugano ◽  
Sunao Ochi ◽  
Akito Kaga ◽  
Masao Ishimoto

Breeding for resistance to soybean red crown rot (Calonectria ilicicola) has long been hampered by the lack of genetic sources of adequate levels of resistance to use as parents. Mini core collections of soybean (Glycine max) originating from Japan (79 accessions), from around the world (80 accessions), and a collection of wild soybeans (Glycine soja) consisting 54 accessions were evaluated for resistance to C. ilicicola (isolate UH2-1). In the first two sets, average disease severity scores of 4.2 ± 0.28 and 4.6 ± 0.31 on a rating scale from zero for no symptom to 5.0 for seedling death were recorded from the set from Japan and the world. No high levels of resistance were observed in these two sets. On the other hand, disease severity score of 3.8 ± 0.35 for the wild soybean accessions was somewhat lower and exhibited higher levels of resistance compared to the soybean cultivars. Three accessions in the wild soybean collection (Gs-7, Gs-9, and Gs-27) had disease severity score ≤2.5 and showed >70% reduction in fungal growth in the roots compared to soybean control cv. “Enrei”. Further analysis using 10 C. ilicicola isolates revealed that accession Gs-9 overall had a wide range of resistance to all isolates tested, with 37% to 93% reduction in fungal growth relative to the cv. Enrei. These highly resistant wild soybean lines may serve as valuable genetic resources for developing C. ilicicola-resistant soybean cultivars.

2013 ◽  
Vol 23 (10) ◽  
pp. 2723-2729 ◽  
Author(s):  
Nicola Flor ◽  
Paolo Rigamonti ◽  
Andrea Pisani Ceretti ◽  
Solange Romagnoli ◽  
Federica Balestra ◽  
...  

2016 ◽  
Vol 41 (3) ◽  
pp. 144 ◽  
Author(s):  
JohnC Aneke ◽  
ChideE Okocha ◽  
PatrickO Manafa ◽  
SamuelC Nwogbo ◽  
NancyC Ibeh ◽  
...  

2016 ◽  
Vol 117 (2) ◽  
pp. S18-S19
Author(s):  
Hernan Amartino ◽  
Barbara Burton ◽  
Roberto Giugliani ◽  
Paul Harmatz ◽  
Simon A. Jones ◽  
...  

2013 ◽  
Vol 127 (S2) ◽  
pp. S24-S28 ◽  
Author(s):  
Y Naidoo ◽  
N Tan ◽  
D Singhal ◽  
P J Wormald

AbstractAim:This study aimed to validate the use of the Adelaide Disease Severity Score for the assessment of chronic rhinosinusitis.Study design:A prospective cohort study supplying level 2b evidence.Methods:Forty-eight patients, scheduled for endoscopic sinus surgery for failed management of chronic rhinosinusitis, completed the Sino-Nasal Outcome Test 22 and the Adelaide Disease Severity Score tool (the latter assessing symptoms (i.e. nasal obstruction, rhinorrhoea, post-nasal drip, headache or facial pain, and olfaction) and quality of life). Lund–Mackay computed tomography scores and Lund–Kennedy endoscopic scores were also recorded. The Adelaide Disease Severity Score results were then compared with those of the other three tools to assess correlation.Results:Mean scores (95 per cent confidence intervals) were 22.31 (21.47–24.15) for the Adelaide Disease Severity Score and 30.6 (27.15–34.05) for the Sino-Nasal Outcome Test 22; there was a statistically significant correlation (Spearman coefficient = 0.45; p = 0.0015). A statistically significant correlation was also noted with the Lund–Mackay score (p = 0.04) and with the Lund–Kennedy score (p = 0.03).Conclusion:The Adelaide Disease Severity Score is a simple, valid tool for clinical assessment of chronic rhinosinusitis, which correlates well with the Sino-Nasal Outcome Test 22, Lund–Mackay and Lund–Kennedy tools.


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