Utility of proximal plant sensors to support nitrogen fertilization in Chrysanthemum

Bracke, Jolien; Elsen, Annemie; Adriaenssens, Sandy; Vandendriessche, Hilde; Labeke, Marie-Christine Van

doi:10.1016/j.scienta.2019.108544

Cited by 10 publications

(7 citation statements)

References 39 publications

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“…The inverse correlation found between Flav and the leaf N content is consistent with those obtained with rice by Zhang et al [ 26 ], with cabbage by Agati et al [ 24 ], in bell pepper [ 13 ] and also in cucumber [ 6 ], turfgrasses [ 39 ] or ornamental plants [ 20 , 22 ].…”

Section: Discussionsupporting

confidence: 88%

“…The Dualex sensor, combining leaf transmittance and fluorescence measurements, was also introduced to control fertilization-related compounds in crops [ 17 , 18 , 19 ] and ornamental woody species [ 20 , 21 , 22 ]. It provides indices of both leaf flavonols and chlorophyll that are known to be compounds inversely and positively correlated to N availability, respectively [ 8 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

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Application of a Combined Transmittance/Fluorescence Leaf Clip Sensor for the Nondestructive Determination of Nitrogen Status in White Cabbage Plants

Kaniszewski

Kowalski

Dyśko

et al. 2021

Sensors

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The correct fertilization of vegetable crops is commonly determined on the basis of soil and plant costly destructive analyses, demanding more sustainable non-invasive optical detection. Here, we tested the ability of the combined transmittance/fluorescence leaf clip Dualex device for determining the nitrogen (N) status of cabbage plants. Fully developed leaves from plants grown under different N rates of 0; 100; 200; 300 kg N ha−1 in 2018 and 2019 were measured in the field by the Dualex sensor twice a year in July and October. The chlorophyll (Chl) and nitrogen (nitrogen balance index, NBI) indices and the flavonols (Flav) index of the sensor were positively and negatively correlated to leaf nitrogen, respectively. Merging the two-years data, the NBI versus leaf N correlation was less point dispersed in October than July (R2 = 0.76 and 0.64, respectively). NBI was also correlated to cabbage yield, better in July than October. Our results showed that the multiparametric Dualex device can be used as precision agriculture tool for the early prediction of plant N and cabbage yield with economic advantage for the growers and reduced environmental contamination due to nitrate leaching.

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Section: Discussionsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Application of a Combined Transmittance/Fluorescence Leaf Clip Sensor for the Nondestructive Determination of Nitrogen Status in White Cabbage Plants

Kaniszewski

Kowalski

Dyśko

et al. 2021

Sensors

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“…The NDVI is used to detect the scope of the variability of the crop quality [83]. Additionally, the use of the NDVI formula to implement nanosensors for the detection of diseased plants and healthy ones, clearly evidences the importance that the use of radiometric or spectral data still has precision for agriculture [84].…”

Section: Analysis Of Trial Bmentioning

confidence: 99%

Determining the Effects of Nanonutrient Application in Cabbage (Brassica oleracea var. capitate L.) Using Spectrometry and Biomass Estimation with UAV

et al. 2021

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Geospatial technologies are presented as an alternative for the monitoring and control of crops, as demonstrated through the analysis of spectral responses (SR) of each species. In this study, it was intended to determine the effects of the application of nanonutrients (Zn and Mn) in cabbage (Brassica oleracea var. capitate L.) by analyzing the relationship between the vegetation indices (VI) NDVI, GNDVI, NGRDI, RVI, GVI, CCI RARSa and the content of chlorophyll (CC), from two trials established in the field and in the greenhouse, together with the calculation of dry biomass production in the field through the use of digital models and its further validation. The results indicated that for greenhouse experiments no significant differences were found between the VIs in the implemented treatments, rather for their phenological states. Whereas in the field assays it was evidenced that there were significant differences between the VIs for the treatments, as well as for the phenological states. The SR issued in the field allowed the evaluation of the behavior of the crop due to the application of nanonutrients, which did not occur in the greenhouse, in the same way. The SR also enabled the spectral characterization of the crop in its phenological states in the two trials. All this information was stored in a digital format, which allowed the creation of a spectral library which was published on a web server. The validation of the dry biomass allowed, by statistical analysis, the efficiency of the method used for its estimation to be confirmed.

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“…One of the most frequently used non-invasive tools for chlorophyll analysis in plant leaves is the Soil Plant Analysis Development (SPAD) ( Figure 1 ) chlorophyll meter (SPAD-502, Konica Minolta, Osaka, Japan), that measures leaf transmittance in the red (650 nm; the measuring wavelength) and infrared (940 nm; a reference wavelength), while the output gives a relative value that is proportional to the chlorophyll content of the leaf ( Ling et al, 2011 ). This tool has also been used in studies on ornamental crops, where nitrogen content as building block of chlorophyll was mostly the target ( Bracke et al, 2019 and references therein) and also in some descriptive studies on cuttings ( Rufai et al, 2016 ; Chater et al, 2017 ). Very high correlations can be found between chemically analyzed chlorophyll concentrations and SPAD values within a certain plant species as shown for Arabidopsis ( Ling et al, 2011 ).…”

Section: Systemic Model Of Propagation By Cuttingsmentioning

confidence: 99%

Overcoming Physiological Bottlenecks of Leaf Vitality and Root Development in Cuttings: A Systemic Perspective

Druege

2020

Front. Plant Sci.

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Each year, billions of ornamental young plants are produced worldwide from cuttings that are harvested from stock plants and planted to form adventitious roots. Depending on the plant genotype, the maturation of the cutting, and the particular environment, which is complex and often involves intermediate storage of cuttings under dark conditions and shipping between different climate regions, induced senescence or abscission of leaves and insufficient root development can impair the success of propagation and the quality of generated young plants. Recent findings on the molecular and physiological control of leaf vitality and adventitious root formation are integrated into a systemic perspective on improved physiologically-based control of cutting propagation. The homeostasis and signal transduction of the wound responsive plant hormones ethylene and jasmonic acid, of auxin, cytokinins and strigolactones, and the carbon-nitrogen source-sink balance in cuttings are considered as important processes that are both, highly responsive to environmental inputs and decisive for the development of cuttings. Important modules and bottlenecks of cutting function are identified. Critical environmental inputs at stock plant and cutting level are highlighted and physiological outputs that can be used as quality attributes to monitor the functional capacity of cuttings and as response parameters to optimize the cutting environment are discussed. Facing the great genetic diversity of ornamental crops, a physiologically targeted approach is proposed to define bottleneck-specific plant groups. Components from the field of machine learning may help to mathematically describe the complex environmental response of specific plant species.

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Utility of proximal plant sensors to support nitrogen fertilization in Chrysanthemum

Cited by 10 publications

References 39 publications

Application of a Combined Transmittance/Fluorescence Leaf Clip Sensor for the Nondestructive Determination of Nitrogen Status in White Cabbage Plants

Application of a Combined Transmittance/Fluorescence Leaf Clip Sensor for the Nondestructive Determination of Nitrogen Status in White Cabbage Plants

Determining the Effects of Nanonutrient Application in Cabbage (Brassica oleracea var. capitate L.) Using Spectrometry and Biomass Estimation with UAV

Overcoming Physiological Bottlenecks of Leaf Vitality and Root Development in Cuttings: A Systemic Perspective

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