Rapid Growth of High Quality Goldenseal Plants in Controlled Environment Growth Chambers

2016 ◽  
pp. 65-74
Author(s):  
Jeffrey Adelberg ◽  
Arthur Salido ◽  
Ryan Marie Kelly ◽  
Randy Beavers
Keyword(s):  
Rapid Growth ◽  
Controlled Environment ◽  
High Quality ◽  
Growth Chambers

Inter- and intra-varietal variation in aerobic methane emissions from environmentally stressed pea plants

Botany ◽  
2018 ◽  
Vol 96 (12) ◽  
pp. 837-850 ◽  
Author(s):  
Awatif M. Abdulmajeed ◽  
Mohammad I. Abo Gamar ◽  
Mirwais M. Qaderi
Keyword(s):  
Stress Factors ◽  
Interactive Effects ◽  
Controlled Environment ◽  
Uvb Radiation ◽  
Pisum Sativum L ◽  
Temperature Regimes ◽  
Varietal Variation ◽  
Growth Chambers ◽  
Effects Of Temperature ◽  
Two Temperature

Environmental stress factors can influence methane (CH4) emissions from plants. There are a few studies on the interactive effects of stress factors on plant aerobic CH4, but none on the comparative evaluation of CH4 emissions between and among plant varieties. We examined the effects of temperature, UVB radiation, and watering regime on CH4 emissions from 10 pea (Pisum sativum L.) varieties first and then selected two varieties with the highest (237J Sundance; var. 1) and lowest (422 Ho Lan Dow; var. 2) emissions for further studies. Plants were grown in controlled-environment growth chambers under two temperature regimes (22 °C / 18 °C and 28 °C / 24 °C, 16 h light / 8 h dark), two UVB levels (0 and 5 kJ·m−2·d−1), and two watering regimes (well-watered and water-stressed) for 14 days, after one week of growth under 22 °C / 18 °C. Higher temperatures and water stress increased CH4 emissions, and increased emission was associated with stress. Pea varieties varied in growth and CH4 emissions; var. 1 was more stressed and had higher emission than var. 2. In the stressed variety, the water-stressed plants grown under higher temperatures at UVB5 had the highest CH4 emission, whereas the well-watered plants grown under lower temperatures at UVB5 had the lowest emission. We conclude that climatic stress conditions increase CH4 emissions, which vary with plant varieties.

scholarly journals Stoichiometric controls of mercury dilution by growth

2007 ◽  
Vol 104 (18) ◽  
pp. 7477-7482 ◽  
Author(s):  
Roxanne Karimi ◽  
Celia Y. Chen ◽  
Paul C. Pickhardt ◽  
Nicholas S. Fisher ◽  
Carol L. Folt
Keyword(s):  
Steady State ◽  
Rapid Growth ◽  
Daphnia Pulex ◽  
Somatic Growth ◽  
Aquatic Organisms ◽  
High Quality ◽  
Nutrient Quality ◽  
Ingestion Rates ◽  
Biokinetic Model ◽  
Ankistrodesmus Falcatus

Rapid growth could significantly reduce methylmercury (MeHg) concentrations in aquatic organisms by causing a greater than proportional gain in biomass relative to MeHg (somatic growth dilution). We hypothesized that rapid growth from the consumption of high-quality algae, defined by algal nutrient stoichiometry, reduces MeHg concentrations in zooplankton, a major source of MeHg for lake fish. Using a MeHg radiotracer, we measured changes in MeHg concentrations, growth and ingestion rates in juvenile Daphnia pulex fed either high (C:P = 139) or low-quality (C:P = 1317) algae (Ankistrodesmus falcatus) for 5 d. We estimated Daphnia steady-state MeHg concentrations, using a biokinetic model parameterized with experimental rates. Daphnia MeHg assimilation efficiencies (≈95%) and release rates (0.04 d−1) were unaffected by algal nutrient quality. However, Daphnia growth rate was 3.5 times greater when fed high-quality algae, resulting in pronounced somatic growth dilution. Steady-state MeHg concentrations in Daphnia that consumed high-quality algae were one-third those of Daphnia that consumed low-quality algae due to higher growth and slightly lower ingestion rates. Our findings show that rapid growth from high-quality food consumption can significantly reduce the accumulation and trophic transfer of MeHg in freshwater food webs.

Rapid growth of high quality perovskite crystal by solvent mixing

CrystEngComm ◽  
2016 ◽  
Vol 18 (7) ◽  
pp. 1184-1189 ◽  
Author(s):  
Yangyang Zhou ◽  
Tiankai Zhang ◽  
Chunmei Li ◽  
Zhimin Liang ◽  
Li Gong ◽  
...  
Keyword(s):  
Formation Mechanism ◽  
Rapid Growth ◽  
Mixed Solvents ◽  
High Quality ◽  
Perovskite Crystal

The formation mechanism of perovskite crystal in different mixed solvents.

scholarly journals Transition, not revolution

2018 ◽  
Author(s):  
Mikhail Popov ◽  
Claudia Heidrich ◽  
Andrew Shore
Keyword(s):  
Open Access ◽  
Rapid Growth ◽  
Hybrid Models ◽  
Extra Cost ◽  
Free Access ◽  
High Quality ◽  
Quality Work ◽  
Broad Scope ◽  
High Quality Journal ◽  
Transition Models

Watch the VIDEO.This presentation is aiming to discuss the effects of conversion of a journal to OA and suggests that this is likely to cause a loss of authorship of the journal. Further, we conclude that transitioning to OA via hybrid models is a more sustainable approach than flipping all journals to OA at once.As an example we use RSC Advances – a high quality journal in multidisciplinary chemistry published by RSC.Since launch in 2012, RSC Advances has achieved rapid growth and worldwide acceptance. In 2016 we converted RSC Advances to OA to:• give researchers free access to a broad scope of quality work• make the research we publish more visible• positively influence the future of OA publishing• demonstrate that OA publishing can be both affordable, and sustainableAn anticipated result of flipping to open access is the loss of authorship and submissions to competing journals. In fact, in 2017 just over 6600 articles were published in RSC Advances – less than a half of the publishing output in 2016.  The loss of authorship and a risk of authors choosing to publish in a competing journal is the reason why RSC cannot go full OA (all journals) yet.This does not mean that RSC suspended the support of OA. We continue introducing new OA journals like Nanoscale Advances, and new OA transition models like Read & Publish, which allows authors to access all content behind paywall and publish OA at no extra cost.

scholarly journals Response of Sorghum to Cold Stress at Early Developmental Stage

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Amandin Rutayisire ◽  
Geoffrey Lubadde ◽  
Alice Mukayiranga ◽  
Richard Edema
Keyword(s):  
Cold Stress ◽  
Early Developmental Stage ◽  
Controlled Environment ◽  
Genotypic Differences ◽  
Breeding Programs ◽  
Cold Temperatures ◽  
Cold Tolerant ◽  
Growth Chambers ◽  
Sorghum Genotypes ◽  
Early Developmental

Native and adapted to the semiarid tropical regions of Africa, sorghum (Sorghum bicolor) is generally sensitive to cold temperatures, especially during the early developmental stages. However, there is genetic variability within the existing germplasm in terms of tolerance to low temperatures. The highland regions of Africa possess important sources of germplasm with adaptation to cold stress, since they tend to be cooler than the low land regions. The goals of the study were to evaluate and identify sorghum lines with tolerance to cold temperature stress and make recommendations on varieties that may be planted in the East African highland regions or used in plant breeding programs for cold tolerance. Forty sorghum genotypes were evaluated for emergence, shoot, and root development at seedling stage under controlled environment in growth chambers and in the field. Significant genotypic differences were detected for all evaluated traits. Correlation between controlled environment experiments and field trial results was mostly significant, suggesting that the growth chambers can be used to predict and identify cold-tolerant genotypes. Results showed that emergence and vigor are the best surrogate traits for selecting cold-tolerant genotypes. Using rank summation index, we were able to identify the best cold-tolerant sorghum genotypes (IS 25557, IS 25558, IS 25546, BM6, BM 29, IESV 90042LT, and Cytanobe) that can be used in future breeding programs and enhance adaptation and expansion of sorghum production further into the highland regions of Africa.

scholarly journals REPORT ON POPLAR HYBRIDIZATION II 1937 AND 1938

1940 ◽  
Vol 16 (2) ◽  
pp. 149-160 ◽  
Author(s):  
C. Heimburger
Keyword(s):  
Disease Resistance ◽  
Exotic Species ◽  
Hybrid Material ◽  
Rapid Growth ◽  
Great Promise ◽  
Western Canada ◽  
Resistant Material ◽  
High Quality ◽  
Disease Resistant ◽  
The Cross

The results of further progress in a poplar hybridization project initiated in 1935 with the aim of producing valuable hardy and disease resistant material of rapid growth for the production of wood of high quality for industrial purposes, and of value for shelterbelts in the Prairies are reported. It has been possible to cross the native aspens of Eastern and Western Canada with several exotic aspens and their hybrids with silver poplar, and to obtain hybrid material of great promise for these purposes. Some western balsam poplars have also been crossed with exotic species and have yielded hybrids of promise for shelterbelts. An attempt to cross an aspen with a cottonwood has so far yielded indifferent results. The cross of a basket willow with a cottonwood was not successful. Hardiness, disease resistance, and good propagability from stem or root cuttings are at present the most important characters used in evaluating the young hybrids.

VETERINARY AND SANITARY EVALUATION, AND INCREASING DUCK MEAT PRODUCTION AT POULTRY ENTERPRISES

2019 ◽  
Vol 1 (1) ◽  
pp. 13-19
Author(s):  
L. P. Satyukova ◽  
◽  
M. I. Shopinskaya ◽  
P. V. Kulach ◽  
A. I. Vishnyakov ◽  
...  
Keyword(s):  
Domestic Market ◽  
The State ◽  
Economic Feasibility ◽  
Meat Production ◽  
Controlled Environment ◽  
High Quality ◽  
The World ◽  
Promising Type ◽  
Poultry Farming

In recent years, interest in waterfowl breeding has been growing around the world. Ducks are very promising type of agricultural poultry, and the economic feasibility of their breeding is due to a simplified, controlled environment and high-quality products. Duck meat is one of the most valuable protein products, providing necessary proteins, lipids, minerals and vitamins. The authors describe the state of this type of poultry farming in the domestic market and abroad, and also provide statistics on the consumption of duck meat and characterize its consumer properties.

Progress of Semi-Solid Processing of Alloys and Composites in China

2022 ◽  
Vol 327 ◽  
pp. 178-188
Author(s):  
Gan Li ◽  
Min Luo ◽  
Wen Ying Qu ◽  
Hong Xing Lu ◽  
Xiao Gang Hu ◽  
...  
Keyword(s):  
Rapid Growth ◽  
Low Cost ◽  
Research Field ◽  
General Situation ◽  
High Quality ◽  
Successful Development ◽  
Future Directions ◽  
Preparation Methods ◽  
Semi Solid ◽  
Slurry Preparation

Following the rapid growth of the automotive and communication industries, components with high quality and low cost are eagerly desired in China. Various technologies have been developed in China to meet the demand, while semi-solid processing (SSP) of alloys and composites is one of the most successfully developed and practically applied technologies. The major SSP applied in China is the rheocasting in terms of the Swirled Enthalpy Equilibration Device (SEED) process. In this review, we start with a brief reviewing some common slurry preparation methods and recent innovations of the SEED process. Subsequently, we describe the general situation and some recent examples of successful development and applications of SSP in China. Lastly, the future directions in SSP of alloys and composites are highlighted in this frontier research field at the end of this review.

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