Management of Chocolate Spot (<i>Botrytis fabae L.</i>) on Faba Bean in Bale Highland’s, Ethiopia

Dagne Kora; Temam Hussein; Seid Ahmed

doi:doi:10.11648/j.jps.20170504.14

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Management of Chocolate Spot (Botrytis fabae L.) on Faba Bean in Bale Highland’s, Ethiopia

Dagne Kora, Temam Hussein, Seid Ahmed

Published in Journal of Plant Sciences (Volume 5, Issue 4)

Received: 25 October 2016 Accepted: 10 March 2017 Published: 22 August 2017

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Abstract

Field experiment was conducted at Sinana Agricultural Research Center in the 2014 main cropping season with the objectives wasto study the reaction of faba bean varieties to infection of the chocolate spot and to assess yield losses caused by chocolate spot (Botrytis fabae) of faba bean four varieties. The highest mean final disease severity at (118 DAP) 38.29% was recorded on the main plots of the local variety and lowest mean final disease severity 32.75% was on the main plots of the variety Mosisa. The maximum Area Under the disease progress curves (AUDPC) was calculated on the unsprayed plots of local variety and Walki, which were 1817%-days and 1716.42%- days respectively. On unsprayed plots of variety local chocolate spot development was increasing at a rate of 0.03 units per day. For the variety local, chocolate spot severity index assessed from 90 DAP had significant negative correlation with yield and had highly significant negative correlation with hundred seed weight with coefficient of correlation ranging from(r=-0.67 to r=-0.62, P<0.05 and r–0.71 to r=-0.75, P<0.01) for yield and hundred seed weight, respectively. The linear regression of AUDPC better described the relationships between faba bean yield and disease severity compared to percent severity index for the variety Shallo. The estimate showed that for each unit increase in percent of chocolate spot AUDPC, there was a grain yield loss of 1.19 kg/ha The estimated slope of the regression line obtained for the variety Shallo was -1.19. Based on coefficient of determination (R²) value, the equations explained about 78% of variation in yield due to chocolate spot severity. Maximum relative grain yield losses of 47.8 and 46.7% were recorded due to chocolate spot severity on the varieties Mosisa and Sinana local, respectively.

Published in	Journal of Plant Sciences (Volume 5, Issue 4)
DOI	10.11648/j.jps.20170504.14
Page(s)	120-129
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2017. Published by Science Publishing Group

Keywords

Disease Parameters, Chocolate Spot, Faba Bean, Highlands, Yield Losses

References

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[18]	Samuel Sahile, Chemeda Fininsa, P. K. Sakhuja and Seid Ahmed. 2008a. Effect of mixed cropping and fungicides on chocolate spot (Botrtyis fabae) of faba bean (vicia faba) in Ethiopia. Crop Protection. 27: 275-282.
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APA Style

Dagne Kora, Temam Hussein, Seid Ahmed. (2017). Management of Chocolate Spot (Botrytis fabae L.) on Faba Bean in Bale Highland’s, Ethiopia. Journal of Plant Sciences, 5(4), 120-129. https://doi.org/10.11648/j.jps.20170504.14

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ACS Style

Dagne Kora; Temam Hussein; Seid Ahmed. Management of Chocolate Spot (Botrytis fabae L.) on Faba Bean in Bale Highland’s, Ethiopia. J. Plant Sci. 2017, 5(4), 120-129. doi: 10.11648/j.jps.20170504.14

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AMA Style

Dagne Kora, Temam Hussein, Seid Ahmed. Management of Chocolate Spot (Botrytis fabae L.) on Faba Bean in Bale Highland’s, Ethiopia. J Plant Sci. 2017;5(4):120-129. doi: 10.11648/j.jps.20170504.14

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@article{10.11648/j.jps.20170504.14,
  author = {Dagne Kora and Temam Hussein and Seid Ahmed},
  title = {Management of Chocolate Spot (Botrytis fabae L.) on Faba Bean in Bale Highland’s, Ethiopia},
  journal = {Journal of Plant Sciences},
  volume = {5},
  number = {4},
  pages = {120-129},
  doi = {10.11648/j.jps.20170504.14},
  url = {https://doi.org/10.11648/j.jps.20170504.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jps.20170504.14},
  abstract = {Field experiment was conducted at Sinana Agricultural Research Center in the 2014 main cropping season with the objectives wasto study the reaction of faba bean varieties to infection of the chocolate spot and to assess yield losses caused by chocolate spot (Botrytis fabae) of faba bean four varieties. The highest mean final disease severity at (118 DAP) 38.29% was recorded on the main plots of the local variety and lowest mean final disease severity 32.75% was on the main plots of the variety Mosisa. The maximum Area Under the disease progress curves (AUDPC) was calculated on the unsprayed plots of local variety and Walki, which were 1817%-days and 1716.42%- days respectively. On unsprayed plots of variety local chocolate spot development was increasing at a rate of 0.03 units per day. For the variety local, chocolate spot severity index assessed from 90 DAP had significant negative correlation with yield and had highly significant negative correlation with hundred seed weight with coefficient of correlation ranging from(r=-0.67 to r=-0.62, P<0.05 and r–0.71 to r=-0.75, P<0.01) for yield and hundred seed weight, respectively. The linear regression of AUDPC better described the relationships between faba bean yield and disease severity compared to percent severity index for the variety Shallo. The estimate showed that for each unit increase in percent of chocolate spot AUDPC, there was a grain yield loss of 1.19 kg/ha The estimated slope of the regression line obtained for the variety Shallo was -1.19. Based on coefficient of determination (R2) value, the equations explained about 78% of variation in yield due to chocolate spot severity. Maximum relative grain yield losses of 47.8 and 46.7% were recorded due to chocolate spot severity on the varieties Mosisa and Sinana local, respectively.},
 year = {2017}
}

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TY  - JOUR
T1  - Management of Chocolate Spot (Botrytis fabae L.) on Faba Bean in Bale Highland’s, Ethiopia
AU  - Dagne Kora
AU  - Temam Hussein
AU  - Seid Ahmed
Y1  - 2017/08/22
PY  - 2017
N1  - https://doi.org/10.11648/j.jps.20170504.14
DO  - 10.11648/j.jps.20170504.14
T2  - Journal of Plant Sciences
JF  - Journal of Plant Sciences
JO  - Journal of Plant Sciences
SP  - 120
EP  - 129
PB  - Science Publishing Group
SN  - 2331-0731
UR  - https://doi.org/10.11648/j.jps.20170504.14
AB  - Field experiment was conducted at Sinana Agricultural Research Center in the 2014 main cropping season with the objectives wasto study the reaction of faba bean varieties to infection of the chocolate spot and to assess yield losses caused by chocolate spot (Botrytis fabae) of faba bean four varieties. The highest mean final disease severity at (118 DAP) 38.29% was recorded on the main plots of the local variety and lowest mean final disease severity 32.75% was on the main plots of the variety Mosisa. The maximum Area Under the disease progress curves (AUDPC) was calculated on the unsprayed plots of local variety and Walki, which were 1817%-days and 1716.42%- days respectively. On unsprayed plots of variety local chocolate spot development was increasing at a rate of 0.03 units per day. For the variety local, chocolate spot severity index assessed from 90 DAP had significant negative correlation with yield and had highly significant negative correlation with hundred seed weight with coefficient of correlation ranging from(r=-0.67 to r=-0.62, P<0.05 and r–0.71 to r=-0.75, P<0.01) for yield and hundred seed weight, respectively. The linear regression of AUDPC better described the relationships between faba bean yield and disease severity compared to percent severity index for the variety Shallo. The estimate showed that for each unit increase in percent of chocolate spot AUDPC, there was a grain yield loss of 1.19 kg/ha The estimated slope of the regression line obtained for the variety Shallo was -1.19. Based on coefficient of determination (R2) value, the equations explained about 78% of variation in yield due to chocolate spot severity. Maximum relative grain yield losses of 47.8 and 46.7% were recorded due to chocolate spot severity on the varieties Mosisa and Sinana local, respectively.
VL  - 5
IS  - 4
ER  -

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Author Information

Dagne Kora

Oromia Agricultural Research Institute, Sinana Agricultural Research Center, Bale-Robe, Ethiopia
Temam Hussein

Department of Plant Sciences, Haramaya University, Dire Dawa, Ethiopia
Seid Ahmed

International Center of Agricultural Research in the Dry Areas, ICARDA, Rabat-Instituts, Rabat, Morocco

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Dagne Kora, Temam Hussein, Seid Ahmed. (2017). Management of Chocolate Spot (Botrytis fabae L.) on Faba Bean in Bale Highland’s, Ethiopia. Journal of Plant Sciences, 5(4), 120-129. https://doi.org/10.11648/j.jps.20170504.14

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ACS Style

Dagne Kora; Temam Hussein; Seid Ahmed. Management of Chocolate Spot (Botrytis fabae L.) on Faba Bean in Bale Highland’s, Ethiopia. J. Plant Sci. 2017, 5(4), 120-129. doi: 10.11648/j.jps.20170504.14

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AMA Style

Dagne Kora, Temam Hussein, Seid Ahmed. Management of Chocolate Spot (Botrytis fabae L.) on Faba Bean in Bale Highland’s, Ethiopia. J Plant Sci. 2017;5(4):120-129. doi: 10.11648/j.jps.20170504.14

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@article{10.11648/j.jps.20170504.14,
  author = {Dagne Kora and Temam Hussein and Seid Ahmed},
  title = {Management of Chocolate Spot (Botrytis fabae L.) on Faba Bean in Bale Highland’s, Ethiopia},
  journal = {Journal of Plant Sciences},
  volume = {5},
  number = {4},
  pages = {120-129},
  doi = {10.11648/j.jps.20170504.14},
  url = {https://doi.org/10.11648/j.jps.20170504.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jps.20170504.14},
  abstract = {Field experiment was conducted at Sinana Agricultural Research Center in the 2014 main cropping season with the objectives wasto study the reaction of faba bean varieties to infection of the chocolate spot and to assess yield losses caused by chocolate spot (Botrytis fabae) of faba bean four varieties. The highest mean final disease severity at (118 DAP) 38.29% was recorded on the main plots of the local variety and lowest mean final disease severity 32.75% was on the main plots of the variety Mosisa. The maximum Area Under the disease progress curves (AUDPC) was calculated on the unsprayed plots of local variety and Walki, which were 1817%-days and 1716.42%- days respectively. On unsprayed plots of variety local chocolate spot development was increasing at a rate of 0.03 units per day. For the variety local, chocolate spot severity index assessed from 90 DAP had significant negative correlation with yield and had highly significant negative correlation with hundred seed weight with coefficient of correlation ranging from(r=-0.67 to r=-0.62, P<0.05 and r–0.71 to r=-0.75, P<0.01) for yield and hundred seed weight, respectively. The linear regression of AUDPC better described the relationships between faba bean yield and disease severity compared to percent severity index for the variety Shallo. The estimate showed that for each unit increase in percent of chocolate spot AUDPC, there was a grain yield loss of 1.19 kg/ha The estimated slope of the regression line obtained for the variety Shallo was -1.19. Based on coefficient of determination (R2) value, the equations explained about 78% of variation in yield due to chocolate spot severity. Maximum relative grain yield losses of 47.8 and 46.7% were recorded due to chocolate spot severity on the varieties Mosisa and Sinana local, respectively.},
 year = {2017}
}

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TY  - JOUR
T1  - Management of Chocolate Spot (Botrytis fabae L.) on Faba Bean in Bale Highland’s, Ethiopia
AU  - Dagne Kora
AU  - Temam Hussein
AU  - Seid Ahmed
Y1  - 2017/08/22
PY  - 2017
N1  - https://doi.org/10.11648/j.jps.20170504.14
DO  - 10.11648/j.jps.20170504.14
T2  - Journal of Plant Sciences
JF  - Journal of Plant Sciences
JO  - Journal of Plant Sciences
SP  - 120
EP  - 129
PB  - Science Publishing Group
SN  - 2331-0731
UR  - https://doi.org/10.11648/j.jps.20170504.14
AB  - Field experiment was conducted at Sinana Agricultural Research Center in the 2014 main cropping season with the objectives wasto study the reaction of faba bean varieties to infection of the chocolate spot and to assess yield losses caused by chocolate spot (Botrytis fabae) of faba bean four varieties. The highest mean final disease severity at (118 DAP) 38.29% was recorded on the main plots of the local variety and lowest mean final disease severity 32.75% was on the main plots of the variety Mosisa. The maximum Area Under the disease progress curves (AUDPC) was calculated on the unsprayed plots of local variety and Walki, which were 1817%-days and 1716.42%- days respectively. On unsprayed plots of variety local chocolate spot development was increasing at a rate of 0.03 units per day. For the variety local, chocolate spot severity index assessed from 90 DAP had significant negative correlation with yield and had highly significant negative correlation with hundred seed weight with coefficient of correlation ranging from(r=-0.67 to r=-0.62, P<0.05 and r–0.71 to r=-0.75, P<0.01) for yield and hundred seed weight, respectively. The linear regression of AUDPC better described the relationships between faba bean yield and disease severity compared to percent severity index for the variety Shallo. The estimate showed that for each unit increase in percent of chocolate spot AUDPC, there was a grain yield loss of 1.19 kg/ha The estimated slope of the regression line obtained for the variety Shallo was -1.19. Based on coefficient of determination (R2) value, the equations explained about 78% of variation in yield due to chocolate spot severity. Maximum relative grain yield losses of 47.8 and 46.7% were recorded due to chocolate spot severity on the varieties Mosisa and Sinana local, respectively.
VL  - 5
IS  - 4
ER  -

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