| Title of Article |
Effective Plant Ages for Screening for Field
Resistance to Alternaria Leaf Spot (Caused by
Alternaria spp.) under Natural Infection in Jerusalem
artichoke (Helianthus tuberosus L.) |
| Date of Acceptance |
11 November 2019 |
| Journal |
| Title of Journal |
Agronomy MDPI |
| Standard |
ISI |
| Institute of Journal |
MDPI (Basel, Switzerland) |
| ISBN/ISSN |
|
| Volume |
2019 |
| Issue |
9 |
| Month |
November |
| Year of Publication |
2020 |
| Page |
754 |
| Abstract |
Host plant resistance has proven to be e ective for controlling Alternaria leaf spot on
Jerusalem artichoke (JA), but ecient screening techniques have not been developed yet. The objective
of this study is to estimate the relationship between disease resistance parameters of JA as a function
of plant age. Six JA varieties and three plant ages at the time of inoculation (20, 40 and 60 days after
transplanting) (DAT) are evaluated in a factorial experiment in randomized complete block design
(RCBD) with four replications. Disease incidence (DI) and severity (DS) are estimated, from which
area under the disease progress curve (AUDPC) was calculated. Disease parameters are positively
and significantly correlated for plant ages of 40 and 60 DAT. Based on our results, screening of JA at
40 DAT for resistance to Alternaria leaf spot is recommended. Knowledge of the impact of plant age
on resistance to key diseases can help breeders to accelerate breeding programs so superior genotypes
can be identified before reproductive growth stages. |
| Keyword |
Jerusalem artichoke breeding; host plant resistance; screening resistance |
| Author |
|
| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Publication
Journal Publication
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