東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

FindBook

Google Book

Amazon

博客來

Tar Spot of Corn : = Population Dynamics, Economic Impact and Management in Midwestern United States.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Tar Spot of Corn :/
其他題名:	Population Dynamics, Economic Impact and Management in Midwestern United States.
作者:	Ross, Tiffanna Jonelle.
面頁冊數:	1 online resource (128 pages)
附註:	Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
Contained By:	Dissertations Abstracts International85-01B.
標題:	Infections. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30505841click for full text (PQDT)
ISBN:	9798379838980

Tar Spot of Corn : = Population Dynamics, Economic Impact and Management in Midwestern United States.
Ross, Tiffanna Jonelle.

Tar Spot of Corn :Population Dynamics, Economic Impact and Management in Midwestern United States. - 1 online resource (128 pages)

Source: Dissertations Abstracts International, Volume: 85-01, Section: B.

Thesis (Ph.D.)--Purdue University, 2022.

Includes bibliographical references

Tar spot is a new foliar disease of corn in the United States. Tar spot was first detected in 2015 and is now among the most important corn diseases in the Midwest. Tar spot is caused by the obligate biotrophic fungus, Phyllachora maydis Maubl, from the genus, Phyllachora which consist of over 1,200 species of host-specific fungi. Due to the recent emergence, studies relating to P. maydispopulation dynamics in the U.S. are limited. How much genetic diversity, variation, and level of gene flow are occurring within and among these populations? Knowledge of the population dynamics is imperative for understanding the pathogen's biology, ecology, epidemiology, and management. Currently, no corn hybrid is fully resistant to tar spot. Foliar fungicides are currently the most effective option for disease management, but best practices for fungicide management remain unknown. Better information is needed on fungicide efficacy and fungicide application timing to reduce tar spot severity, protect yield, and increase profitability for Indiana corn growers.This research dissertation presents four chapters to answers those questions and bridge the gaps between the knowns and unknows of this novel corn-Phyllachora maydis pathosystem. Chapter 1 presents a literature review on tar spot of corn, its economic impact, the causal pathogen, its host, lifecycle, distribution, and known management strategies as a resource for understanding the pathosystem in the U.S. Chapter 2 examines the genetic population structure, diversity, geneflow and mode of reproduction in Midwest U.S. by employing microsatellite (SSR) markers. Chapter 3 presents results from multi-year, multi-location, small-plot field trials on the net return of foliar fungicides and fungicide timing on tar spot management in Indiana. Lastly, Chapter 4concludes by evaluating of an integrated management strategy for tar spot by examining the integration of tillage, corn hybrids and fungicide application in reducing tar spot severity while protecting yields.Results provided in this research dissertation will be used to guide future studies and provide stakeholders such as researchers, corn growers, extension personnel in academia and industry with valuable information needed to guide effective disease management decisions.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798379838980Subjects--Topical Terms:

1621997
Infections.
Index Terms--Genre/Form:

542853
Electronic books.

Tar Spot of Corn : = Population Dynamics, Economic Impact and Management in Midwestern United States.
LDR:03717nmm a2200433K 4500 001 2361892
005 20231027102346.5
006 m o d
007 cr mn ---uuuuu
008 241011s2022 xx obm 000 0 eng d
020 $a 9798379838980
035 $a (MiAaPQ)AAI30505841
035 $a (MiAaPQ)Purdue19612890
035 $a AAI30505841
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Ross, Tiffanna Jonelle. $3 3702582
245 1 0 $a Tar Spot of Corn : $b Population Dynamics, Economic Impact and Management in Midwestern United States.
264 0 $c 2022
300 $a 1 online resource (128 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
500 $a Advisor: Telenko, Darcy E.P.
502 $a Thesis (Ph.D.)--Purdue University, 2022.
504 $a Includes bibliographical references
520 $a Tar spot is a new foliar disease of corn in the United States. Tar spot was first detected in 2015 and is now among the most important corn diseases in the Midwest. Tar spot is caused by the obligate biotrophic fungus, Phyllachora maydis Maubl, from the genus, Phyllachora which consist of over 1,200 species of host-specific fungi. Due to the recent emergence, studies relating to P. maydispopulation dynamics in the U.S. are limited. How much genetic diversity, variation, and level of gene flow are occurring within and among these populations? Knowledge of the population dynamics is imperative for understanding the pathogen's biology, ecology, epidemiology, and management. Currently, no corn hybrid is fully resistant to tar spot. Foliar fungicides are currently the most effective option for disease management, but best practices for fungicide management remain unknown. Better information is needed on fungicide efficacy and fungicide application timing to reduce tar spot severity, protect yield, and increase profitability for Indiana corn growers.This research dissertation presents four chapters to answers those questions and bridge the gaps between the knowns and unknows of this novel corn-Phyllachora maydis pathosystem. Chapter 1 presents a literature review on tar spot of corn, its economic impact, the causal pathogen, its host, lifecycle, distribution, and known management strategies as a resource for understanding the pathosystem in the U.S. Chapter 2 examines the genetic population structure, diversity, geneflow and mode of reproduction in Midwest U.S. by employing microsatellite (SSR) markers. Chapter 3 presents results from multi-year, multi-location, small-plot field trials on the net return of foliar fungicides and fungicide timing on tar spot management in Indiana. Lastly, Chapter 4concludes by evaluating of an integrated management strategy for tar spot by examining the integration of tillage, corn hybrids and fungicide application in reducing tar spot severity while protecting yields.Results provided in this research dissertation will be used to guide future studies and provide stakeholders such as researchers, corn growers, extension personnel in academia and industry with valuable information needed to guide effective disease management decisions.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Infections. $3 1621997
650 4 $a Fungi. $3 571472
650 4 $a Pathogens. $3 3540520
650 4 $a Humidity. $3 3559498
650 4 $a Fungicides. $3 3398127
650 4 $a Agricultural production. $3 3559355
650 4 $a Epidemiology. $3 568544
650 4 $a Leaves. $3 603951
650 4 $a Biology. $3 522710
650 4 $a Crop diseases. $3 3691265
650 4 $a Genetic diversity. $3 3685454
650 4 $a Plant diseases. $3 663172
650 4 $a Disease management. $3 3232333
650 4 $a Crop dusting. $3 3702583
650 4 $a Geography. $3 524010
650 4 $a Precipitation. $3 3680799
650 4 $a Pesticides. $3 660104
650 4 $a Epidemics. $3 588395
650 4 $a Agricultural chemistry. $3 523947
650 4 $a Atmospheric sciences. $3 3168354
650 4 $a Chemistry. $3 516420
650 4 $a Finance. $3 542899
650 4 $a Organic chemistry. $3 523952
650 4 $a Plant pathology. $3 3174872
655 7 $a Electronic books. $2 lcsh $3 542853
690 $a 0366
690 $a 0306
690 $a 0766
690 $a 0749
690 $a 0725
690 $a 0485
690 $a 0508
690 $a 0454
690 $a 0490
690 $a 0480
710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a Purdue University. $3 1017663
773 0 $t Dissertations Abstracts International $g 85-01B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30505841 $z click for full text (PQDT)