Photosynthetic performance of soybean plants to water deficit under high and low light intensity

Zhang, J.; Liu, J.; Yang, Caiqiong; Du, Sheng; Yang, Wenyu

doi:10.1016/j.sajb.2016.04.011

Cited by 75 publications

(44 citation statements)

References 34 publications

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“…No significant three-way interaction was observed on photosynthetic pigments for the cultivars or based on light intensity. The results of this experiment are in accordance with the data of Zhang et al (2016). Table 4 shows that total dry mass (TDM) of both Om Rabiaa and Maali cultivars decreased significantly in water stress conditions under the different light intensities.…”

Section: Resultssupporting

confidence: 87%

“…Under shade conditions, the LA was remarkably improved for both cultivars. Increased LA under shade conditions has been reported in other plant species (Diaz-Perez, 2013;Abraham et al, 2014;Zhang et al, 2016). Our results showed that the Om Rabiaa cultivar could grow adequately under water deficit and a low level of light by increasing its specific leaf area, thereby maximizing the carbon gain per unit of leaf mass.…”

Section: Resultssupporting

confidence: 79%

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Differential response to water deficit stress and shade in two wheat (Triticum durum Desf.) cultivars: growth, water relations, osmolyte accumulation and photosynthetic pigments

Gharbi¹,

Guizani²,

Zribi³

et al. 2019

PAK.J.BOT.

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This study was conducted to investigate the effects of water deficit stress and shading on two wheat cultivars (Triticum durum Desf. cv Om Rabiaa and cv Maali). Comparison was based on growth, leaf water relations, photosynthetic pigments and the accumulation of organic solute. In both cultivars, water stress deficit significantly decreased total dry mass (TDM), leaf area (LA), water potential (Ψw), osmotic potential (Ψπ) and relative water content (RWC). Photosynthetic pigments, i.e. chlorophyll a (Chl a), chlorophyll b (Chl b) and total chlorophyll (Tot Chl), decreased while carotenoids (car) increased. Proline concentration increased significantly in water stressed plants under full light conditions while sugar accumulated more under shade conditions. In addition, shade improved leaf area, leaf water potential, and osmotic potential as well as alleviated the negative drought impact on photosynthesis performance. For the Maali cultivar, the reduction in RWC and its inability to achieve osmotic adjustment (OA) emphasize this cultivar's sensitivity to water deficit stress. For the Om Rabiaa cultivar, the ability to avoid relative tissue dehydration and preserve a higher RWC with a significant increase in OA in shade-treated plants were tolerance mechanisms enabling this cultivar to absorb water effectively and sustain normal growth and productivity under water stress conditions.

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Section: Resultssupporting

confidence: 87%

Section: Resultssupporting

confidence: 79%

Differential response to water deficit stress and shade in two wheat (Triticum durum Desf.) cultivars: growth, water relations, osmolyte accumulation and photosynthetic pigments

Gharbi¹,

Guizani²,

Zribi³

et al. 2019

PAK.J.BOT.

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“…Regarding the number of leaves, the value for the cultivar "Amarelo Japonês" was also higher for WR of 125% compared to the cultivar "Contender" under the same conditions, for reasons that may be related to genotype and its interaction with the environment. The environment can exert an important influence on plant performance as argued by Zhang et al (2016) in studies with soybean on photosynthetic performance of soybean plants in water deficit under high and low light intensity. The authors worked with two irrigation regimes (75 +/-2% of field capacity) and two light intensity treatments.…”

Section: Resultsmentioning

confidence: 99%

“…Studies on the effects of efficient management of irrigation on the agronomic performance of some species have been performed (PEIXOTO et al, 2002;MENDONÇA;RASSINI, 2006;MOREIRA et al, 2009;OLIVEIRA, 2013;SILVESTRE et al, 2016;ZHANG et al, 2016;HALAGALIMATH;RAJKUMARA, 2018). However, there are no studies for all planting regions for the most consumed cultivars.…”

Section: Introductionmentioning

confidence: 99%

Agronomic Performance of Contender and Amarelo Japonês Cultivars Under Different Water Replacements

et al. 2019

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The use of cultivars appropriate to the soil and climate characteristics of a region provides farmers with security by facilitating credit for crop financing and improving product prices in local commerce. The objective of this work was to evaluate the agronomic performance of “Contender” and “Amarelo Japonês” green bean bush cultivars grown in the Cerrado in terms of water replenishment (RH) of 25, 50, 75, 100, and 125% of evaporation using the Piché evaporimeter. The experiment was carried out in the experimental area of the State University of Goiás, on the Ipameri Campus. The experimental design was a randomized block design. Sowing was done in May 2017, with treatments distributed in a split-plots scheme with water replenishment in plots and cultivar subplots with 3 replications. The analyzed variables were: height; stem diameter; leaf number; leaf area; number of inflorescences; number of flowers; fresh and dry mass of the plant; number, length, diameter, fresh and dry mass of the pods. The different water replenishment rates increased the mean plant height, stem diameter, number of pods per plant, number of bean seeds per pod, and number of bean seeds per plant in the cultivars “Amarelo Japonês” and “Contender.” Water replenishment of 125% produced higher development and better agronomic performance in the two cultivars than the other rates.

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“…A significant number of articles cling to the use of PLS as the principal multivariate technique; nevertheless, comparisons with other methodologies have not always been considered. The literature suggests that modeling with MLR, after selecting wavelengths, would generate models with similar predictive ability to PLS [30,38,40,41]. For example, [42] indicated that the selection of wavelengths with lower MC would improve the performance of MLR models for spectral data with a large number of samples.…”

Section: Introductionmentioning

confidence: 99%

Spectral Reflectance Modeling by Wavelength Selection: Studying the Scope for Blueberry Physiological Breeding under Contrasting Water Supply and Heat Conditions

et al. 2019

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To overcome the environmental changes occurring now and predicted for the future, it is essential that fruit breeders develop cultivars with better physiological performance. During the last few decades, high-throughput plant phenotyping and phenomics have been developed primarily in cereal breeding programs. In this study, plant reflectance, at the level of the leaf, was used to assess several physiological traits in five Vaccinium spp. cultivars growing under four controlled conditions (no-stress, water deficit, heat stress, and combined stress). Two modeling methodologies [Multiple Linear Regression (MLR) and Partial Least Squares (PLS)] with or without (W/O) prior wavelength selection (multicollinearity, genetic algorithms, or in combination) were considered. PLS generated better estimates than MLR, although prior wavelength selection improved MLR predictions. When data from the environments were combined, PLS W/O gave the best assessment for most of the traits, while in individual environments, the results varied according to the trait and methodology considered. The highest validation predictions were obtained for chlorophyll a/b (R2Val ≤ 0.87), maximum electron transport rate (R2Val ≤ 0.60), and the irradiance at which the electron transport rate is saturated (R2Val ≤ 0.59). The results of this study, the first to model modulated chlorophyll fluorescence by reflectance, confirming the potential for implementing this tool in blueberry breeding programs, at least for the estimation of a number of important physiological traits. Additionally, the differential effects of the environment on the spectral signature of each cultivar shows this tool could be directly used to assess their tolerance to specific environments.

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Photosynthetic performance of soybean plants to water deficit under high and low light intensity

Cited by 75 publications

References 34 publications

Differential response to water deficit stress and shade in two wheat (Triticum durum Desf.) cultivars: growth, water relations, osmolyte accumulation and photosynthetic pigments

Differential response to water deficit stress and shade in two wheat (Triticum durum Desf.) cultivars: growth, water relations, osmolyte accumulation and photosynthetic pigments

Agronomic Performance of Contender and Amarelo Japonês Cultivars Under Different Water Replacements

Spectral Reflectance Modeling by Wavelength Selection: Studying the Scope for Blueberry Physiological Breeding under Contrasting Water Supply and Heat Conditions

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