Responses of Leaf Spectral Reflectance to Plant Stress

Carter, Gregory A.

doi:10.1002/j.1537-2197.1993.tb13796.x

Cited by 388 publications

(365 citation statements)

References 13 publications

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“…3. The real values are presented in Table 2. foliar or canopy red reflectance could respond to stress with a consistent increase (Carter, 1993;Smith et al, 2004). However, the canopy reflectance of seepweed community at 680 nm in treatment M was only slightly higher compared with that in treatment L (Fig.…”

Section: Mechanisms and Potential For Monitoring Plant Stress Using Tmentioning

confidence: 91%

Monitoring plant response to phenanthrene using the red edge of canopy hyperspectral reflectance

Zhu

Chen

Wang

et al. 2014

Marine Pollution Bulletin

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a b s t r a c tTo investigate the mechanisms and potential for the remote sensing of phenanthrene-induced vegetation stress, we measured field canopy spectra, and associated plant and soil parameters in the field controlled experiment in the Yellow River Delta of China. Two widely distributed plant communities, separately dominated by reed (Phragmites australis) and glaucous seepweed (Suaeda salsa), were treated with different doses of phenanthrene. The canopy spectral changes of plant community resulted from the decreases of biomass and foliar projective coverage, while leaf photosynthetic pigment concentrations showed no significance difference among treatments. The spectral response to phenanthrene included a flattened red edge, with decreased first derivative of reflectance. The red edge slope and area consistently responded to phenanthrene, showing a strong relationship with aboveground biomass, coverage and canopy pigments density. These results suggest the potential of remote sensing and the importance of field validation to correctly interpret the causes of the spectral changes.

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Section: Mechanisms and Potential For Monitoring Plant Stress Using Tmentioning

confidence: 91%

Monitoring plant response to phenanthrene using the red edge of canopy hyperspectral reflectance

Zhu

Chen

Wang

et al. 2014

Marine Pollution Bulletin

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“…Since the 1990s spectral reflectance measurement has been increasingly used as screening approach for the tolerance of various stresses (Carter 1993;Peñuelas and Filella 1998). For example, Winterhalter et al (2011) estimated canopy water mass of tropical maize hybrids based on spectral reflectance and showed that it can be used as a high throughput tool to discriminate between groups with different drought resistance.…”

Section: Breeding For Dehydration Avoidancementioning

confidence: 99%

Management of crop water under drought: a review

Bodner

Nakhforoosh

Kaul

2015

Agron. Sustain. Dev.

455

234

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Drought is a predominant cause of low yields worldwide. There is an urgent need for more water efficient cropping systems facing large water consumption of irrigated agriculture and high unproductive losses via runoff and evaporation. Identification of yield-limiting constraints in the plant-soil-atmosphere continuum are the key to improved management of plant water stress. Crop ecology provides a systematic approach for this purpose integrating soil hydrology and plant physiology into the context of crop production. We review main climate, soil and plant properties and processes that determine yield in different water-limited environments. From this analysis, management measures for cropping systems under specific drought conditions are derived. Major findings from literature analysis are as follows. (1) Unproductive water losses such as evaporation and runoff increase from continental in-season rainfall climates to storage-dependent winter rainfall climates. Highest losses occur under tropical residual moisture regimes with short intense rainy season. (2) Sites with a climatic dry season require adaptation via phenology and water saving to ensure stable yields. Intermittent droughts can be buffered via the root system, which is still largely underutilised for better stress resistance. (3) At short-term better management options such as mulching and date of seeding allow to adjust cropping systems to site constraints. Adapted cultivars can improve the synchronisation between crop water demand and soil supply. At long term, soil hydraulic and plant physiological constraints can be overcome by changing tillage systems and breeding new varieties with higher stress resistance. (4) Interactions between plant and soil, particularly in the rhizosphere, are a way towards better crop water supply. Targeted management of such plant-soil interactions is still at infancy.We conclude that understanding site-specific stress hydrology is imperative to select the most efficient measures to mitigate stress. Major progress in future can be expected from crop ecology focussing on the management of complex plant (root)-soil interactions.

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“…In the digested material, total nitrogen and phosphorus were determined calorimetrically according to Murphy and Riley (1962), respectively and potassium was determined by Flame photometer as described by Cheng and Bray (1951). Micronutrients (Fe, Zn and Mn) leaf contents were determined by Perkin EL mer atomic absorption spectrophotometer according to Carter (1993). The concentration of N, P and K, were expressed as percent, while those of Fe, Zn and Mn were expressed as parts per million, on dry weight basis.…”

Section: Determination Of Leaf Minerals Compositionmentioning

confidence: 99%

Performance of some Table Grape Cultivars Grafting on Different Rootstocks in El-Nubaria Region

Aly¹,

Ezz²,

Harhash³

et al. 2015

Asian J. of Crop Science

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This study had made in El-Nubaria region at the desert street Alex, Cairo 75 km during 2012 and 2013 seasons. Three different scions from Europe grape vine on three different rootstocks are used in this study, their age is six years old in private orchard, sandy clay loom soil on spaced at 2×3 m and irrigated by drip. The results showed that, Flame seedless scion grafted on different rootstocks gave the earliest time for bud burst time, flowing time, time of cluster flower setting, berry coloring time and time of berry ripening comparing with Superior and Thompson scions and ungrafted cultivars. Moreover, data showed that Superior seedless and Thompson seedless cultivars scions on Freedom, Polcin1103 and salt Greek rootstocks gave the better number for internodes/cane per vine comparing to Flame seedless cultivars grafted on Freedom, Polcin1103 and salt Greek rootstocks in both seasons. Flame seedless and Superior seedless cultivars grafted on Freedom, Polcin 1103 and salt Greek rootstocks gave the better berry adherence strength per vine, yield and yield components in contract to Thompson seedless cultivars grafted on Freedom, Polcin 1103 and salt Greek rootstocks in two seasons. Leaf mineral contents in scions understudy did not clearly affected with type of rootstocks comparing with ungrafted scions, Polcin1103 rootstock increased all leaf mineral contents understudy followed by Freedom, salt Greek stock and finally ungrafted scion. Also, leaf of Superior seedless contained the highest values of elements followed by Thompson seedless and Flame seedless regardless the type of rootstocks.

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Responses of Leaf Spectral Reflectance to Plant Stress

Cited by 388 publications

References 13 publications

Monitoring plant response to phenanthrene using the red edge of canopy hyperspectral reflectance

Monitoring plant response to phenanthrene using the red edge of canopy hyperspectral reflectance

Management of crop water under drought: a review

Performance of some Table Grape Cultivars Grafting on Different Rootstocks in El-Nubaria Region

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