NDLI: Quantum yield of non-regulated energy dissipation in PSII (Y(NO)) for early detection of leaf rust (Puccinia triticina) infection in susceptible and resistant wheat (Triticum aestivum L.) cultivars

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Quantum yield of non-regulated energy dissipation in PSII (Y(NO)) for early detection of leaf rust (Puccinia triticina) infection in susceptible and resistant wheat (Triticum aestivum L.) cultivars

Low and high-level visual feature-based apple detection from multi-modal images

Precision Agriculture : Volume 11, Issue 5, October 2010

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Precision Agriculture : Volume 11, Issue 3, June 2010

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Precision Agriculture : Volume 11, Issue 1, February 2010

Precision Agriculture : Volume 10

Precision Agriculture : Volume 9

Precision Agriculture : Volume 8

Precision Agriculture : Volume 7

Precision Agriculture : Volume 6

Precision Agriculture : Volume 5

Precision Agriculture : Volume 4

Precision Agriculture : Volume 3

Precision Agriculture : Volume 2

Precision Agriculture : Volume 1

Quantum yield of non-regulated energy dissipation in PSII (Y(NO)) for early detection of leaf rust (Puccinia triticina) infection in susceptible and resistant wheat (Triticum aestivum L.) cultivars

Content Provider	Springer Nature Link
Author	Bürling, K. Hunsche, M. ga, G.
Copyright Year	2010
Abstract	The development and optimization of protocols for the precise and pre-symptomatic detection of diseases, and non-invasive evaluation of genotype-specific pathogen resistance enabling selection of the more promising genotypes in breeding programmes are important and often overlooked topics in precision agriculture. The increasing pressure to minimize both production costs and the environmental impact of pesticides forces the search for rapid and objective methods of screening pathogen resistance. Using the non-destructive pulse amplitude modulated (PAM) chlorophyll fluorescence imaging technique, we hypothesized that not only disease detection but also discrimination between differences in the level of resistance of wheat cultivars to the leaf rust (Puccinia triticina Erics.) pathogen can be achieved. Experiments were conducted using the cultivars Dekan and Retro as representatives of a susceptible and a highly resistant genotype, respectively. Fluorescence measurements were carried out daily on the control and on plants inoculated with P. triticina until the first small red-brown pustules appeared in the centre of chlorotic spots. In response to pathogen inoculation, the fluorescence readings showed an early characteristic increase in Y(NO) in both resistant and susceptible cultivars. The susceptible cultivar, however, showed a more pronounced difference between Y(NO) values measured on the control and inoculated leaves as well as a distinct evolution over time. Accordingly, our results indicate that Y(NO) might be suitable for discriminating between wheat genotypes as early as 2 days after inoculation. Thus, the proposed protocol might be adopted as an additional tool for the early screening of new genotypes, especially in breeding programs that aim for high resistance to disease and low crop variability for precision agriculture. However, its implementation in experimental field plots requires improvement of the measurement system and establishment of appropriate algorithms for disease pattern recognition and data analysis.
Starting Page	703
Ending Page	716
Page Count	14
File Format	PDF
ISSN	13852256
Journal	Precision Agriculture
Volume Number	11
Issue Number	6
e-ISSN	15731618
Language	English
Publisher	Springer US
Publisher Date	2010-10-05
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Inoculation method Imaging fluorescence Pathogen–plant interaction Y(NO) Resistance screening Meteorology/Climatology Statistics for Engineering, Physics, Computer Science, Chemistry and Earth Sciences Remote Sensing/Photogrammetry Soil Science & Conservation Agriculture
Content Type	Text
Resource Type	Article
Subject	Agricultural and Biological Sciences

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Genetic mapping of leaf rust (Puccinia triticina Eriks) resistance genes in six Canadian spring wheat cultivars

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Detached wheat leaf assay for assessing the sensitivity of Puccinia triticina races to fungicides

Quantum yield of non-regulated energy dissipation in PSII (Y(NO)) for early detection of leaf rust (Puccinia triticina) infection in susceptible and resistant wheat (Triticum aestivum L.) cultivars

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Quantum yield of non-regulated energy dissipation in PSII (Y(NO)) for early detection of leaf rust (Puccinia triticina) infection in susceptible and resistant wheat (Triticum aestivum L.) cultivars