Leaf chlorophyll fluorescence, reflectance, and physiological response to freshwater and saltwater flooding in the evergreen shrub, Myrica cerifera

Naumann, Julie C; Young, Donald R.; Anderson, John E.

doi:10.1016/j.envexpbot.2007.12.008

Cited by 118 publications

(71 citation statements)

References 43 publications

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“…Differences (p < 0.05) were obtained for Chl-a and total chlorophylls, values decreasing when soil salinity content increases, but no differences in the Chl-b content were found. Previous studies also reported that Chl-b was less sensitive to salt stress than Chl-a (Naumann et al, 2008;Qin et al, 2010). However, no correlation was found between chlorophylls and the NDVI indices used in this work thus indicating that levels of chlorophyll were not the only parameter affecting NDVI indices.…”

Section: Resultscontrasting

confidence: 73%

Spectral indices for the detection of salinity effects in melon plants

Hernández

Melendez-Pastor

Pedreño

et al. 2014

Sci. agric. (Piracicaba, Braz.)

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). Spectral data of leaves were transformed into vegetation indices indicative of the physiological status of the plants. The results showed differences for N (p < 0.05), K and Na content (p < 0.01) due to salinity suggesting different degrees of salt stress on the plants. Specific leaf area increased with salinity levels (p < 0.001). The capabilities of VNIR radiometry to assess the influence of soil salinity on melon physiology using a non-destructive method were demonstrated. A normalized difference vegetation index , and the ratio between water index (WI) and normalized difference vegetation index (WI/NDVI 750-705 ) showed significant relationships (p < 0.01) with the salinity. Therefore, this method could be used for in-situ early detection of salinity stress effects.

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Section: Resultscontrasting

confidence: 73%

Spectral indices for the detection of salinity effects in melon plants

Hernández

Melendez-Pastor

Pedreño

et al. 2014

Sci. agric. (Piracicaba, Braz.)

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“…Chlorophyll fluorescence can reflect an ability to endure the stresses of environmental changes and the degree to which those stress events injure the photosynthetic organs or tissues of a plant; therefore, fluorescence parameters are a feasible tool for diagnosis of stress-induced changes in PSII, and they are regarded as a crucial marker of the response of photosynthesis to environmental stress (Naumann et al, 2008;Zribi et al, 2009). Due to the sensitivity, convenience, and nonintrusive characteristics of chlorophyll fluorescence, it correctly reflects the changes of photosynthesis in a low light environment (Dai et al, 2009).…”

Section: Different Responses To Low Light Intensity In Chlorophyll Flmentioning

confidence: 99%

Comparative studies on the photosynthetic characteristics of two maize (Zea mays L.) near-isogenic lines differing in their susceptibility to low light intensity

Qian

Zhang

Zhong

et al. 2017

Emir. J. Food Agric

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“…Leaf chlorophyll content is considered to be a good indicator of photosynthetic capacity. Lower chlorophyll content would limit photosynthetic potential and lead to a decrease in biomass and production (Naumann et al, 2008). Decreasing chlorophyll content index of wheat leaves with water stress (Figure 3) could be related to increasing the activity of chlorophyll degrading enzyme: chlorophyllase (Jamil et al, 2007).…”

Section: Chlorophyll Contentmentioning

confidence: 99%

The Impact of Drought Stress on some Morpho-Physiological Traits and RAPD Markers in Wheat Genotypes

Bayoumi

EL-Mageed

et al. 2015

Journal of Plant Production Sciences

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Water limitation is a well-known problem for wheat plants. Lack of water affects their biomass and yield. This is the most conspicuous in case of crops causing severe uncertainty of agricultural productivity. Progress in breeding to improve drought tolerance has been limited by its high sensitivity to environmental factors, low heritability, and the complexity and size of wheat genome. In this study eight genotypes of bread wheat were used for screening them under three water regimes; control 100% Field Capacity (FC), 75% FC and 50% FC. Five drought resistance indices including Mean Productivity (MP), Tolerance Index (TOL), Drought Susceptibility index (DSI), Geometric Mean Productivity (MP) and Yield Stability Index (YSI) were calculated for each genotype based on grain yield under stress (50% FC) and normal (100% FC) conditions. Physiological parameters, chlorophyll content (SPAD values), proline accumulation and expression levels of drought related genes were analyzed in wheat plants at heading stage, comparing eight genotypes with different drought tolerance capacity. The imposed drought stress induced a decreasing of plant growth and chlorophyll content, a strong increase in proline and expression of drought related genes. The correlation coefficients showed that YSI, MP, DSI and GMP had the most desirable selection criteria for high yielding and drought tolerant genotypes. The development of molecular markers for physiological traits has made significant headway in recent years with the advancement of new technologies. Consequently, in our study the use of molecular markers; RAPD technique with 9 primers was detected 91 polymorphism alleles for the genotypes with 79.12% polymorphism. The most Polymorphic Information Content (PIC) value and polymorphism percentage was detected by OPA-07primer that showed the high score from bands 13 with polymorphism 69.23%. While, OPO-19 revealed low level from bands was 6 with percentage 83.33%. Also, OPA-02, OPA-04 and OPO-13 revealed 9 fragments with 77.78% polymorphism. While, primers OPB-07, OPB-10 and OPO-14 showed 11 bands with 81.82% polymorphism. The last primer revealed 12 bands with 75% polymorphism. Therefore, these recently developed techniques could be enable faster identification and characterization of drought-related gene(s).

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Leaf chlorophyll fluorescence, reflectance, and physiological response to freshwater and saltwater flooding in the evergreen shrub, Myrica cerifera

Cited by 118 publications

References 43 publications

Spectral indices for the detection of salinity effects in melon plants

Spectral indices for the detection of salinity effects in melon plants

Comparative studies on the photosynthetic characteristics of two maize (Zea mays L.) near-isogenic lines differing in their susceptibility to low light intensity

The Impact of Drought Stress on some Morpho-Physiological Traits and RAPD Markers in Wheat Genotypes

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