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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-09-17-1424-RE
|2 doi
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|a pubmed24n0963.xml
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Galbieri, Rafael
|e verfasserin
|4 aut
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| 245 |
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|a Influence of Cotton Root System Size on Tolerance to Rotylenchulus reniformis
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| 264 |
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 28.02.2019
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|a Date Revised 28.02.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The factors that influence the ability of cotton to minimize yield loss despite parasitism by Rotylenchulus reniformis (i.e., tolerance) were evaluated for 12 cotton genotypes. Reproduction of R. reniformis and total length of the root system were measured under greenhouse conditions, and the relationship of those variables to yield loss caused by R. reniformis in infested fields was evaluated. Values for nematodes per gram of root and root length were standardized by setting the genotype with greatest value as 100% and then calculating a percentage for each genotype. There was significant variability among genotypes in yield loss, resistance, and root length. Average yield loss for the genotypes ranged from 10.4% for IAC 26RMD to 43.2% for IMACD 5675B2RF. The least nematode reproduction was on IAC 26RMD, which had 49.6% of the reproduction on the susceptible check, Deltapine 16. The genotype with the shortest total root length was 34% less than the genotype with the greatest length. There was a significant linear relationship between percentage yield loss caused by R. reniformis and root length and nematodes per gram of root, both expressed as a percentage of the maximum, represented by the following equation: Yield loss (%) = 16.1258 - 0.1918*(% maximum root length) + 0.3728*(% maximum eggs + vermiform/g of roots). We conclude that tolerance to R. reniformis in cotton is influenced by the size of the root system and the parasitic load on the plant (nematodes per gram of root). Management approaches that increase root growth may lower the parasitic load, thereby reducing losses in cotton to R. reniformis
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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1 |
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|a Davis, Richard F
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kobayasti, Leimi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Albuquerque, Maria C F
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bélot, Jean-Louis
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Echer, Fabio R
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Boldt, Alberto S
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 102(2018), 12 vom: 03. Dez., Seite 2473-2479
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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|g volume:102
|g year:2018
|g number:12
|g day:03
|g month:12
|g pages:2473-2479
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|u http://dx.doi.org/10.1094/PDIS-09-17-1424-RE
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