Fuzzy comprehensive evaluation of the effects of relative air humidity on the morpho-physiological traits of Pakchoi (Brassica chinensis L.) under high temperature

Han, Wei; Yang, Zhong-Jian; Huang, Lidong; Sun, Cheng; Yu, Xiaojuan; Zhao, Mengfan

doi:10.1016/j.scienta.2018.11.079

Cited by 35 publications

(30 citation statements)

References 71 publications

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“…On one hand, it can interact with other external factors, such as temperature, soil moisture, and soil nutrient. On the other hand, it can affect many physiological processes, such as photosynthesis, transpiration, and the mineral uptake of the plant (Han et al 2019). In general, under HT stress, the photosynthetic function of plant leaves is reduced, and the transport and distribution of organic matter are in disorder, leading to premature senescence of leaves, resulting in poor growth and development of plants (Krishnan et al 2011).…”

Section: Discussionmentioning

confidence: 99%

“…Although high temperature has many adverse effects on plants, plants can reduce their leaf temperature through vigorous transpiration. The proper relative humidity level (RH) can reduce leaf temperature and maintain stomatal conductance, maintaining the high yield via higher photosynthetic efficiency at high temperature (Han et al 2019). Therefore, increasing air humidity is a common defensive measure to alleviate HT stress in facility production.…”

Section: Introductionmentioning

confidence: 99%

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High humidity alleviates photosynthetic inhibition and oxidative damage of tomato seedlings under heat stress

Xu¹,

Yang²,

Yang³

et al. 2020

Photosynt.

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This study investigated the effects of high humidity on the growth and photosynthetic and physiology traits of tomato plants under high temperature stress (HT). The results showed that high humidity effectively alleviated the limitation of HT on plant growth and increased the root-to-shoot ratio. In addition, high humidity also increased the chlorophyll content, net photosynthetic rate, and maximum photochemical quantum yield of PSII in tomato seedlings under HT stress, but declined the stomatal limitation value. Moreover, JIP-test showed that increasing air humidity improved the quantum yields and efficiencies of HT-stressed tomato plants and increased the size of functional antenna, while reduced the activity of a portion of reaction centers. Besides, high humidity increased the activity of antioxidant enzymes, but decreased the content of malondialdehyde and hydrogen peroxide in HT-stressed tomato plants. Therefore, high humidity improved the growth and alleviated photoinhibition and oxidative stress of tomato seedlings under heat stress.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High humidity alleviates photosynthetic inhibition and oxidative damage of tomato seedlings under heat stress

Xu¹,

Yang²,

Yang³

et al. 2020

Photosynt.

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“…According to Table 1, relative humidity promoted the temperature effects on cyclamen growth. That said, growth is typically decreased by low levels of humidity (Grantz, 1990). Therefore, temperature could be introduced during potted flowering cyclamen as the main factor and other factors could be having promoting effects on temperature.…”

Section: Contributions Of Genotype Temperature and Relative Humiditymentioning

confidence: 99%

“…(Tshikhudo et al, 2019). Plants display various responses to relative humidity, including rapid responses, developmental changes, and evolutionary adaptations (Grantz, 1990;Hirai et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of open-pollinated offspring in Cyclamen persicum using vegetative phenology models in a primitive breeding population

Shafiei-Masouleh

Moghaddam

2021

Ornam. Hortic.

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Cyclamen is commercially cultivated to produce the pot and garden flowering plants by sowing the seeds, and the number of leaves is an important trait for the beginning of the initiations of flower buds and flowering. The yield potential is affected by the life cycle of a plant and the plant breeders can have good decisions making with the prediction of plant phenology. In this study, a polynomial function was proposed for modeling behavior of cyclamen offspring during the vegetative growth. This modeling is based on information on environmental changes and plant morphology up to the flowering stage. For this purpose, 30 pots (individuals) from a 121-individual population, which were the same in the size, were considered for sampling of data. The data were recorded as time series that include temperature (°C), relative humidity (%), leaf width (mm) and number of leaves. The output of this model is the number of leaves and the recorded inputs are the time (growth cycle; days), temperature, relative humidity and leaf width. Using the Quantum-behaved Particle Swarm Optimization (QPSO) algorithm, the constant coefficients of the proposed function (linear model) was calculated to match the input and output values to each other. To illustrate the robustness and efficiency of model, the growth rates of all individuals were compared using this proposed model. The result of root mean square error (RMSE), mean absolute error (MAE), and coefficient of determination (R 2 ) between the estimated and observed values for each individual showed that 63% of the tested open-pollinated (OP) population is marketable. Therefore, phenology model could be a good estimation of the vigor of the OP population for commercial production. It should be noted that in obtaining the model, only five individuals were used randomly as training data, and the obtained model was fitted to the others as test dataset without changing the coefficients. Furthermore, a Gaussian model of the whole dataset showed that the OP seeds of cyclamen could be utilized to produce the potted flowering cyclamen without any worry about non-uniformity of harvest for the market if the optimum temperature would be adjusted.

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“…chinensis Makino) is one of the most widely used and commercially essential crops in China. It has high nutritional value as it provides an intake of cellulose, vitamins, and minerals (Han et al, 2019). Therefore, there is great interest in improving Pak choi nutritional quality by using rhizosphere-promoting bacteria.…”

Section: Introductionmentioning

confidence: 99%

Cell-Free Fermentation Broth of Bacillus velezensis Strain S3-1 Improves Pak Choi Nutritional Quality and Changes the Bacterial Community Structure of the Rhizosphere Soil

Jin

Lin

et al. 2020

Front. Microbiol.

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Bacillus velezensis is a plant growth-promoting rhizobacteria (PGPR) that has long been proven to improve the growth of plants, and it has been widely used in agriculture. However, in many reports, we observed that during the application of bacterial fluids, it appeared that the effect of the cell-free fermentation broth (CFB) was ignored. The purpose of this study is to compare the effect of the no inoculation treatment (CK), the B. velezensis strain S3-1 treatment (S), the CFB treatment in the Pak choi, soil bacterial community structure, soil enzyme activity, and field soil properties. The results have shown that, compared to the inoculation B. velezensis strain S3-1 treatment and the no-inoculation treatment; the inoculation of the CFB treatment can significantly enhance the soluble protein, soluble solids, ascorbic acid of Pak choi and increase the total phosphorus content and electrical conductivity (EC) in the soil. Based on high-throughput sequencing data, our analysis of soil microbial communities used R, NETWORK, and PICRUSt showed that the CFB treatment can enhance the relative abundance of Acidobacteria in the soil, decrease the abundance of native Bacillus in the soil, change the microbial community structure of the top 50 operational taxonomic units (OTUs), and improve soil microbial carbon metabolism and nitrogen metabolism. Overall, we observed that CFB treatment can also improve plant nutrition and change soil microbial communities. This study provides new insights for the application of microbial fertilizers in agricultural production.

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Fuzzy comprehensive evaluation of the effects of relative air humidity on the morpho-physiological traits of Pakchoi (Brassica chinensis L.) under high temperature

Cited by 35 publications

References 71 publications

High humidity alleviates photosynthetic inhibition and oxidative damage of tomato seedlings under heat stress

High humidity alleviates photosynthetic inhibition and oxidative damage of tomato seedlings under heat stress

Evaluation of open-pollinated offspring in Cyclamen persicum using vegetative phenology models in a primitive breeding population

Cell-Free Fermentation Broth of Bacillus velezensis Strain S3-1 Improves Pak Choi Nutritional Quality and Changes the Bacterial Community Structure of the Rhizosphere Soil

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