Nutrient uptake and assimilation in fragrant rosewood (Dalbergia odorifera T.C. Chen) seedlings in growing media with un-composted spent mushroom residue

Li, Xiaowen; Xia, Haitao; Wang, Jinwang; Chen, Qiuxia

doi:10.1371/journal.pone.0249534

Cited by 10 publications

(14 citation statements)

References 31 publications

(44 reference statements)

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“…Inc., Changchun, China) were fully soaked by distilled water and used to fill up pots to the height of 4 cm above the bottom. The substrate had mineral N of 164 mg kg -1 , available P of 0.2 g kg -1 , organic matter of 11%, pH of 4.8, and electrical conductivity of 1.2 μS cm -1 that can fully facilitate plant growth [ 42 – 44 ]. Potted substrates were divided into two halves by inserting a piece of plastic sheet vertically in the middle section of each pot at the height of 7.5 cm.…”

Section: Methodsmentioning

confidence: 99%

Root foraging of birch and larch in heterogeneous soil nutrient patches under water deficit

et al. 2021

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Water and nutrient are two critical factors that limit plant growth to spatial-temporal extents. Tree root foraging behavior has not received adequate attention in heterogeneous soil environments in temperate forest under drought pressure. In this study, birch (Betula platyphylla) and larch (Larix olgensis) seedlings were raised in pots in a split-root system with artificially heterogeneous soil environments to study the root foraging response to drought. Potted space was split into two halves where substrates were mixed with fertilizers in 67.5 mg nitrogen (N) plant-1 (N-P2O5-K2O, 14-13-13) to both halves as to create a homogeneous condition. Otherwise, a rate of 135 mg N plant-1 of fertilizers was delivered to a random half to create a heterogeneous condition. Half of seedlings were fully sub-irrigated every three days with the other half received the drought treatment by being watered every six days. Both birch and larch seedlings showed greater net shoot growth and biomass increment in well-watered condition, while root morphology was promoted by drought. Both species placed more fine roots with higher root N concentration in nutrient-enriched patches. In the heterogeneous pattern, birch showed a higher foraging precision assessed by biomass and greater foraging plasticity assessed in morphology and physiology. In contrast, larch seedlings had higher root N concentration in the well-watered condition. Neither species showed a significant response of N utilization to the heterogeneous pattern, but both used more N when water supply was improved. Overall, birch is better at acclimating to heterogeneous soil conditions, but its ability to seize N was lower than larch when drought was alleviated.

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Section: Methodsmentioning

confidence: 99%

Root foraging of birch and larch in heterogeneous soil nutrient patches under water deficit

et al. 2021

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“…Multiple regression was also used to evaluate the co-driving forces of the environmental factors on facial expressions. Statistics and fit-plots were finished using SAS software (SAS Institute, Cary, NC, USA) with detailed programs given by previous studies [42][43][44]. Bar charts were made using SigmaPlot v.14.0 software (Systat Software, Inc., San Jose, CA, USA) [45].…”

Section: Discussionmentioning

confidence: 99%

Can Urban Forest Settings Evoke Positive Emotion? Evidence on Facial Expressions and Detection of Driving Factors

Liu

Xia

et al. 2021

Sustainability

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There is increasing interest in experiences of urban forests because relevant studies have revealed that forest settings can promote mental well-being. The mental response to a forest experience can be evaluated by facial expressions, but relevant knowledge is limited at large geographical scales. In this study, a dataset of 2824 photos, detailing the evaluated age (toddler, youth, middle-age, and senior citizen) and gender of urban forest visitors, was collected from Sina Weibo (a social media application similar to Twitter in China) between 1–7 October 2018, in 12 randomly chosen cities in China. Happy and sad expressions were rated as scores by FireFACE software V1.0, and the positive response index (PRI) was calculated by subtracting sad scores from happy scores. Regional environmental factors were collected to detect driving forces using regression analyses. Happy scores were higher in forests than in urban settings, while sad scores for toddlers were lower in forests than in promenades and squares. Females showed more positive emotional expressions than males. Increases in happy scores were driven by the increase of daily minimum temperature; while PRI declined with increases in latitude. Overall, an urban forest experience can evoke positive emotions, which is likely due to comfortable feelings in warm temperatures.

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“…The plant factory is an alternative and stable environment to cultivate E . senticosus [ 17 – 20 ]. Technological details in plant factory have to be determined according to E .…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, carbon (C) and nitrogen (N) cycling in E. senticosus may differ by regional climate change. The plant factory is an alternative and stable environment to cultivate E. senticosus [17][18][19][20]. Technological details in plant factory have to be determined according to E. senticosus' ecophysiological responses to controlled environment factors that benefit dry mass production and lower antioxidant activities.…”

Section: Introductionmentioning

confidence: 99%

Bioactive extracts and association with C and N in Eleutherococcus senticosus subjected to chitosan nanoparticles in contrasting light spectra

et al. 2022

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Bioactive compounds are major reasons for the value of Eleutherococcus senticosus, which can be modified by different lighting spectra. Light-emitting diode (LED) provides lights with specific spectra which can interact with other treatments to impact plant bioactive production. Chitosan nanoparticle (CN) is a biopolymer derived from marine creatures. It’s usage may be a practical approach to cope with uncertainties in secondary metabolites induced by illumination. Carbon (C) and nitrogen (N) cyclings link plant eco-physiological performance and bioactive substance; hence their associations may reveal the mechanism of joint light-CN interaction. In this study, E. senticosus seedlings were raised under artificial lighting spectra from high-pressure sodium (HPS) lamps (44% red, 55% green, 1% blue) and white (44% red, 47% green, 8% blue) and red colored (73% red, 13% green, 14% blue) LED panels. Half of the seedlings received CN and the other half received distilled water as the control. Compared to the HPS spectrum, the red-light induced stronger shoot growth with greater biomass accumulation and higher water uptake but resulted in lower N concentration and biomass ratio in the root. The white light caused more biomass allocated to the root and strengthened stem C concentration. Stem eleutheroside B increased with shoot growth, while root eleutheroside B had a positive association with leaf C and stem protocatechuic acid had a negative association with leaf N. Having the CN treatment in white and red LED lights is recommended for increasing accumulation of bioactive compounds in the shoots and roots of E. senticosus seedlings, respectively.

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Nutrient uptake and assimilation in fragrant rosewood (Dalbergia odorifera T.C. Chen) seedlings in growing media with un-composted spent mushroom residue

Cited by 10 publications

References 31 publications

Root foraging of birch and larch in heterogeneous soil nutrient patches under water deficit

Root foraging of birch and larch in heterogeneous soil nutrient patches under water deficit

Can Urban Forest Settings Evoke Positive Emotion? Evidence on Facial Expressions and Detection of Driving Factors

Bioactive extracts and association with C and N in Eleutherococcus senticosus subjected to chitosan nanoparticles in contrasting light spectra

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