Special Issue "Spectral Reflectance and Fluorescence Measurements of Crop Performance"
A special issue of Agriculture (ISSN 2077-0472).
Deadline for manuscript submissions: closed (1 February 2014)
Dr. Mauricio Hunsche
Institute of Crop Science and Resource Conservation, Horticultural Science, University of Bonn, Auf dem Huegel 6, 53121 Bonn, Germany
Scientists and growers are aware of the major challenges primary crop production needs to overcome in the next decades: to produce more biomass and food per unit area; to increase the quality of agricultural products; and to reduce costs. All this under consideration of a more rational use of production resources, without disregarding the natural environment. Optical sensors play a key role for improving crop performance in changing environments. In particular, the spectrally resolved reflectance and fluorescence signals enable a fast and precise non-destructive monitoring of biochemical and physiological processes; as often demonstrated in more basic sciences. On the other hand, the demand exists—and the time has come—to use this knowledge for improvement of crop performance in the modern and intensive realm of agriculture.
Under field conditions, crops are exposed to a range of potentially stressful factors, including water and nutrient availability, salinity, as well as atypical temperatures. Moreover, biotic factors drastically constrain achievable yield and quality. In this context, spectral signals and signatures might be recorded, processed and transformed into information to early detect and differentiate single and multiple stresses in order to support a more target-oriented crop management.
Further, interesting applications of spectrally resolved reflectance and fluorescence approaches are found under high-intensive and protected cultivation, such as horticulture. Here, production factors might be optimized to improve growth, yield and product quality—often outside of the ideal cultivation period—and thereby exploiting the genetic potential at maximum. Also, the potential of reflectance and fluorescence techniques as supporting tools for phenotyping and selection of promising genotypes in breeding lines is still underexplored.
This Special Issue of Agriculture covers the following list of major topics, but is not limited to:
- Sensing and differentiation of stress factors, and their single or combined impact, on the performance of field and horticultural crops.
- Spatio-temporal changes of the spectral signatures due to biotic and/or abiotic stresses as information basis for precision agriculture.
- Development, improvement and/or validation of sensors (including those mounted on unmanned aerial vehicles, UAV), spectral indices, or tools for data and image analysis.
- Detection, characterization and differentiation of plant species (e.g., weeds and major crops), genotypes or physiological stages.
- Imaging and functioning of plant structures.
- Estimation of photosynthetic activity, water content, as well as the content and/or composition of plant pigments in leaves and fruits.
- Phenotyping, identification of functional traits, selection of genotypes in breeding lines.
- Target-oriented management of production resources (e.g., water, fertilizers, light, agrochemicals) for improved crop performance.
- Reviews addressing specific issues on the use of spectrally resolved reflectance and fluorescence techniques for improved agricultural production.
Dr. Mauricio Hunsche
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. Papers will be published continuously (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are refereed through a peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agriculture is an international peer-reviewed Open Access quarterly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 300 CHF (Swiss Francs). English correction and/or formatting fees of 250 CHF (Swiss Francs) will be charged in certain cases for those articles accepted for publication that require extensive additional formatting and/or English corrections.
- environmental constraints
- field and horticultural crops
- growth and development
- morpho-physiological and biochemical traits
- spectral signature
- stress and dynamic adaptation
- use of resources
- yield and quality
Article: Field Observations with Laser-Induced Fluorescence Transient (LIFT) Method in Barley and Sugar Beet
Agriculture 2014, 4(2), 159-169; doi:10.3390/agriculture4020159
Received: 13 February 2014; in revised form: 18 April 2014 / Accepted: 12 May 2014 / Published: 22 May 2014| PDF Full-text (573 KB)
Article: Non-Invasive Spectral Phenotyping Methods can Improve and Accelerate Cercospora Disease Scoring in Sugar Beet Breeding
Agriculture 2014, 4(2), 147-158; doi:10.3390/agriculture4020147
Received: 27 March 2014; in revised form: 25 April 2014 / Accepted: 29 April 2014 / Published: 8 May 2014| PDF Full-text (615 KB) | HTML Full-text | XML Full-text
Agriculture 2014, 4(2), 132-146; doi:10.3390/agriculture4020132
Received: 11 January 2014; in revised form: 22 April 2014 / Accepted: 22 April 2014 / Published: 30 April 2014| PDF Full-text (778 KB) | HTML Full-text | XML Full-text
Agriculture 2014, 4(2), 113-131; doi:10.3390/agriculture4020113
Received: 6 January 2014; in revised form: 19 March 2014 / Accepted: 14 April 2014 / Published: 25 April 2014| PDF Full-text (1704 KB) | HTML Full-text | XML Full-text
Article: Evaluation of Spring Wheat (20 Varieties) Adaptation to Soil Drought during Seedlings Growth Stage
Agriculture 2014, 4(2), 96-112; doi:10.3390/agriculture4020096
Received: 22 January 2014; in revised form: 22 March 2014 / Accepted: 26 March 2014 / Published: 4 April 2014| PDF Full-text (275 KB) | HTML Full-text | XML Full-text
Article: Advanced Multi-Color Fluorescence Imaging System for Detection of Biotic and Abiotic Stresses in Leaves
Agriculture 2014, 4(2), 79-95; doi:10.3390/agriculture4020079
Received: 30 January 2014; in revised form: 20 March 2014 / Accepted: 25 March 2014 / Published: 4 April 2014| PDF Full-text (2210 KB) | HTML Full-text | XML Full-text
Article: Fluorescence Indices for the Proximal Sensing of Powdery Mildew, Nitrogen Supply and Water Deficit in Sugar Beet Leaves
Agriculture 2014, 4(2), 58-78; doi:10.3390/agriculture4020058
Received: 15 January 2014; in revised form: 12 February 2014 / Accepted: 13 March 2014 / Published: 28 March 2014| PDF Full-text (935 KB) | HTML Full-text | XML Full-text
Review: Hyperspectral and Chlorophyll Fluorescence Imaging for Early Detection of Plant Diseases, with Special Reference to Fusarium spec. Infections on Wheat
Agriculture 2014, 4(1), 32-57; doi:10.3390/agriculture4010032
Received: 7 February 2014; in revised form: 11 March 2014 / Accepted: 17 March 2014 / Published: 24 March 2014| Cited by 1 | PDF Full-text (1357 KB) | HTML Full-text | XML Full-text
Last update: 14 August 2013